[{"file":[{"creator":"mlechner","file_size":452492,"content_type":"application/pdf","file_name":"infinite_time_horizon_safety_o.pdf","access_level":"open_access","date_updated":"2022-01-26T07:39:59Z","date_created":"2022-01-26T07:39:59Z","success":1,"checksum":"0fc0f852525c10dda9cc9ffea07fb4e4","file_id":"10682","relation":"main_file"}],"oa_version":"Published Version","user_id":"2EBD1598-F248-11E8-B48F-1D18A9856A87","_id":"10667","ddc":["000"],"status":"public","title":"Infinite time horizon safety of Bayesian neural networks","abstract":[{"text":"Bayesian neural networks (BNNs) place distributions over the weights of a neural network to model uncertainty in the data and the network's prediction. We consider the problem of verifying safety when running a Bayesian neural network policy in a feedback loop with infinite time horizon systems. Compared to the existing sampling-based approaches, which are inapplicable to the infinite time horizon setting, we train a separate deterministic neural network that serves as an infinite time horizon safety certificate. In particular, we show that the certificate network guarantees the safety of the system over a subset of the BNN weight posterior's support. Our method first computes a safe weight set and then alters the BNN's weight posterior to reject samples outside this set. Moreover, we show how to extend our approach to a safe-exploration reinforcement learning setting, in order to avoid unsafe trajectories during the training of the policy. We evaluate our approach on a series of reinforcement learning benchmarks, including non-Lyapunovian safety specifications.","lang":"eng"}],"type":"conference","alternative_title":[" Advances in Neural Information Processing Systems"],"date_published":"2021-12-01T00:00:00Z","citation":{"short":"M. Lechner, Ð. Žikelić, K. Chatterjee, T.A. Henzinger, in:, 35th Conference on Neural Information Processing Systems, 2021.","mla":"Lechner, Mathias, et al. “Infinite Time Horizon Safety of Bayesian Neural Networks.” 35th Conference on Neural Information Processing Systems, 2021, doi:10.48550/arXiv.2111.03165.","chicago":"Lechner, Mathias, Ðorđe Žikelić, Krishnendu Chatterjee, and Thomas A Henzinger. “Infinite Time Horizon Safety of Bayesian Neural Networks.” In 35th Conference on Neural Information Processing Systems, 2021. https://doi.org/10.48550/arXiv.2111.03165.","ama":"Lechner M, Žikelić Ð, Chatterjee K, Henzinger TA. Infinite time horizon safety of Bayesian neural networks. In: 35th Conference on Neural Information Processing Systems. ; 2021. doi:10.48550/arXiv.2111.03165","ieee":"M. Lechner, Ð. Žikelić, K. Chatterjee, and T. A. Henzinger, “Infinite time horizon safety of Bayesian neural networks,” in 35th Conference on Neural Information Processing Systems, Virtual, 2021.","apa":"Lechner, M., Žikelić, Ð., Chatterjee, K., & Henzinger, T. A. (2021). Infinite time horizon safety of Bayesian neural networks. In 35th Conference on Neural Information Processing Systems. Virtual. https://doi.org/10.48550/arXiv.2111.03165","ista":"Lechner M, Žikelić Ð, Chatterjee K, Henzinger TA. 2021. Infinite time horizon safety of Bayesian neural networks. 35th Conference on Neural Information Processing Systems. NeurIPS: Neural Information Processing Systems, Advances in Neural Information Processing Systems, ."},"publication":"35th Conference on Neural Information Processing Systems","article_processing_charge":"No","has_accepted_license":"1","day":"01","related_material":{"record":[{"id":"11362","relation":"dissertation_contains","status":"public"}]},"author":[{"id":"3DC22916-F248-11E8-B48F-1D18A9856A87","first_name":"Mathias","last_name":"Lechner","full_name":"Lechner, Mathias"},{"full_name":"Žikelić, Ðorđe","first_name":"Ðorđe","last_name":"Žikelić"},{"full_name":"Chatterjee, Krishnendu","first_name":"Krishnendu","last_name":"Chatterjee","id":"2E5DCA20-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0002-4561-241X"},{"full_name":"Henzinger, Thomas A","orcid":"0000-0002-2985-7724","id":"40876CD8-F248-11E8-B48F-1D18A9856A87","last_name":"Henzinger","first_name":"Thomas A"}],"date_created":"2022-01-25T15:45:58Z","date_updated":"2023-06-23T07:01:11Z","year":"2021","acknowledgement":"This research was supported in part by the Austrian Science Fund (FWF) under grant Z211-N23 (Wittgenstein Award), ERC CoG 863818 (FoRM-SMArt), and the European Union’s Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie Grant Agreement No. 665385.","department":[{"_id":"GradSch"},{"_id":"ToHe"},{"_id":"KrCh"}],"publication_status":"published","ec_funded":1,"file_date_updated":"2022-01-26T07:39:59Z","license":"https://creativecommons.org/licenses/by-nc-nd/3.0/","doi":"10.48550/arXiv.2111.03165","conference":{"location":"Virtual","start_date":"2021-12-06","end_date":"2021-12-10","name":"NeurIPS: Neural Information Processing Systems"},"language":[{"iso":"eng"}],"oa":1,"tmp":{"name":"Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported (CC BY-NC-ND 3.0)","legal_code_url":"https://creativecommons.org/licenses/by-nc-nd/3.0/legalcode","short":"CC BY-NC-ND (3.0)","image":"/images/cc_by_nc_nd.png"},"main_file_link":[{"open_access":"1","url":"https://proceedings.neurips.cc/paper/2021/hash/544defa9fddff50c53b71c43e0da72be-Abstract.html"}],"external_id":{"arxiv":["2111.03165"]},"project":[{"call_identifier":"H2020","name":"International IST Doctoral Program","grant_number":"665385","_id":"2564DBCA-B435-11E9-9278-68D0E5697425"},{"call_identifier":"H2020","name":"Formal Methods for Stochastic Models: Algorithms and Applications","_id":"0599E47C-7A3F-11EA-A408-12923DDC885E","grant_number":"863818"},{"call_identifier":"FWF","name":"The Wittgenstein Prize","grant_number":"Z211","_id":"25F42A32-B435-11E9-9278-68D0E5697425"}],"quality_controlled":"1","month":"12"},{"scopus_import":"1","day":"01","article_processing_charge":"No","has_accepted_license":"1","publication":"Expert Systems with Applications","citation":{"chicago":"Sarac, Naci E, Ömer Faruk Altun, Kamil Tolga Atam, Sertac Karahoda, Kamer Kaya, and Hüsnü Yenigün. “Boosting Expensive Synchronizing Heuristics.” Expert Systems with Applications. Elsevier, 2021. https://doi.org/10.1016/j.eswa.2020.114203.","mla":"Sarac, Naci E., et al. “Boosting Expensive Synchronizing Heuristics.” Expert Systems with Applications, vol. 167, no. 4, 114203, Elsevier, 2021, doi:10.1016/j.eswa.2020.114203.","short":"N.E. Sarac, Ö.F. Altun, K.T. Atam, S. Karahoda, K. Kaya, H. Yenigün, Expert Systems with Applications 167 (2021).","ista":"Sarac NE, Altun ÖF, Atam KT, Karahoda S, Kaya K, Yenigün H. 2021. Boosting expensive synchronizing heuristics. Expert Systems with Applications. 167(4), 114203.","apa":"Sarac, N. E., Altun, Ö. F., Atam, K. T., Karahoda, S., Kaya, K., & Yenigün, H. (2021). Boosting expensive synchronizing heuristics. Expert Systems with Applications. Elsevier. https://doi.org/10.1016/j.eswa.2020.114203","ieee":"N. E. Sarac, Ö. F. Altun, K. T. Atam, S. Karahoda, K. Kaya, and H. Yenigün, “Boosting expensive synchronizing heuristics,” Expert Systems with Applications, vol. 167, no. 4. Elsevier, 2021.","ama":"Sarac NE, Altun ÖF, Atam KT, Karahoda S, Kaya K, Yenigün H. Boosting expensive synchronizing heuristics. Expert Systems with Applications. 2021;167(4). doi:10.1016/j.eswa.2020.114203"},"article_type":"original","date_published":"2021-04-01T00:00:00Z","type":"journal_article","abstract":[{"lang":"eng","text":"For automata, synchronization, the problem of bringing an automaton to a particular state regardless of its initial state, is important. It has several applications in practice and is related to a fifty-year-old conjecture on the length of the shortest synchronizing word. Although using shorter words increases the effectiveness in practice, finding a shortest one (which is not necessarily unique) is NP-hard. For this reason, there exist various heuristics in the literature. However, high-quality heuristics such as SynchroP producing relatively shorter sequences are very expensive and can take hours when the automaton has tens of thousands of states. The SynchroP heuristic has been frequently used as a benchmark to evaluate the performance of the new heuristics. In this work, we first improve the runtime of SynchroP and its variants by using algorithmic techniques. We then focus on adapting SynchroP for many-core architectures,\r\nand overall, we obtain more than 1000× speedup on GPUs compared to naive sequential implementation that has been frequently used as a benchmark to evaluate new heuristics in the literature. We also propose two SynchroP variants and evaluate their performance."}],"issue":"4","_id":"8912","user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","ddc":["000"],"title":"Boosting expensive synchronizing heuristics","status":"public","intvolume":" 167","file":[{"relation":"main_file","file_id":"8913","checksum":"600c2f81bc898a725bcfa7cf26ff4fed","date_updated":"2020-12-02T13:33:51Z","date_created":"2020-12-02T13:33:51Z","access_level":"open_access","file_name":"synchroPaperRevised.pdf","content_type":"application/pdf","file_size":634967,"creator":"esarac"}],"oa_version":"Submitted Version","month":"04","publication_identifier":{"issn":["09574174"]},"oa":1,"external_id":{"isi":["000640531100038"]},"quality_controlled":"1","isi":1,"project":[{"name":"The Wittgenstein Prize","call_identifier":"FWF","grant_number":"Z211","_id":"25F42A32-B435-11E9-9278-68D0E5697425"}],"doi":"10.1016/j.eswa.2020.114203","language":[{"iso":"eng"}],"article_number":"114203","file_date_updated":"2020-12-02T13:33:51Z","acknowledgement":"This work was supported by The Scientific and Technological Research Council of Turkey (TUBITAK) [grant number 114E569]. This research was supported in part by the Austrian Science Fund (FWF) under grant Z211-N23 (Wittgenstein Award). We would like to thank the authors of (Roman & Szykula, 2015) for providing their heuristics implementations, which we used to compare our SynchroP implementation as given in Table 11.","year":"2021","publication_status":"published","publisher":"Elsevier","department":[{"_id":"ToHe"}],"author":[{"full_name":"Sarac, Naci E","first_name":"Naci E","last_name":"Sarac","id":"8C6B42F8-C8E6-11E9-A03A-F2DCE5697425"},{"full_name":"Altun, Ömer Faruk","first_name":"Ömer Faruk","last_name":"Altun"},{"full_name":"Atam, Kamil Tolga","first_name":"Kamil Tolga","last_name":"Atam"},{"last_name":"Karahoda","first_name":"Sertac","full_name":"Karahoda, Sertac"},{"full_name":"Kaya, Kamer","last_name":"Kaya","first_name":"Kamer"},{"full_name":"Yenigün, Hüsnü","first_name":"Hüsnü","last_name":"Yenigün"}],"date_created":"2020-12-02T13:34:25Z","date_updated":"2023-08-04T11:19:00Z","volume":167},{"type":"conference","abstract":[{"text":"Formal design of embedded and cyber-physical systems relies on mathematical modeling. In this paper, we consider the model class of hybrid automata whose dynamics are defined by affine differential equations. Given a set of time-series data, we present an algorithmic approach to synthesize a hybrid automaton exhibiting behavior that is close to the data, up to a specified precision, and changes in synchrony with the data. A fundamental problem in our synthesis algorithm is to check membership of a time series in a hybrid automaton. Our solution integrates reachability and optimization techniques for affine dynamical systems to obtain both a sufficient and a necessary condition for membership, combined in a refinement framework. The algorithm processes one time series at a time and hence can be interrupted, provide an intermediate result, and be resumed. We report experimental results demonstrating the applicability of our synthesis approach.","lang":"eng"}],"_id":"9200","user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","title":"Synthesis of hybrid automata with affine dynamics from time-series data","ddc":["000"],"status":"public","oa_version":"Published Version","file":[{"date_created":"2021-05-25T13:53:22Z","date_updated":"2021-05-25T13:53:22Z","success":1,"checksum":"4c1202c1abf71384c3ee6fea88c2f80e","file_id":"9424","relation":"main_file","creator":"kschuh","content_type":"application/pdf","file_size":1474786,"file_name":"2021_HSCC_Soto.pdf","access_level":"open_access"}],"scopus_import":"1","keyword":["hybrid automaton","membership","system identification"],"article_processing_charge":"No","has_accepted_license":"1","day":"01","citation":{"ama":"Garcia Soto M, Henzinger TA, Schilling C. Synthesis of hybrid automata with affine dynamics from time-series data. In: HSCC ’21: Proceedings of the 24th International Conference on Hybrid Systems: Computation and Control. Association for Computing Machinery; 2021:2102.12734. doi:10.1145/3447928.3456704","apa":"Garcia Soto, M., Henzinger, T. A., & Schilling, C. (2021). Synthesis of hybrid automata with affine dynamics from time-series data. In HSCC ’21: Proceedings of the 24th International Conference on Hybrid Systems: Computation and Control (p. 2102.12734). Nashville, TN, United States: Association for Computing Machinery. https://doi.org/10.1145/3447928.3456704","ieee":"M. Garcia Soto, T. A. Henzinger, and C. Schilling, “Synthesis of hybrid automata with affine dynamics from time-series data,” in HSCC ’21: Proceedings of the 24th International Conference on Hybrid Systems: Computation and Control, Nashville, TN, United States, 2021, p. 2102.12734.","ista":"Garcia Soto M, Henzinger TA, Schilling C. 2021. Synthesis of hybrid automata with affine dynamics from time-series data. HSCC ’21: Proceedings of the 24th International Conference on Hybrid Systems: Computation and Control. HSCC: International Conference on Hybrid Systems Computation and Control, 2102.12734.","short":"M. Garcia Soto, T.A. Henzinger, C. Schilling, in:, HSCC ’21: Proceedings of the 24th International Conference on Hybrid Systems: Computation and Control, Association for Computing Machinery, 2021, p. 2102.12734.","mla":"Garcia Soto, Miriam, et al. “Synthesis of Hybrid Automata with Affine Dynamics from Time-Series Data.” HSCC ’21: Proceedings of the 24th International Conference on Hybrid Systems: Computation and Control, Association for Computing Machinery, 2021, p. 2102.12734, doi:10.1145/3447928.3456704.","chicago":"Garcia Soto, Miriam, Thomas A Henzinger, and Christian Schilling. “Synthesis of Hybrid Automata with Affine Dynamics from Time-Series Data.” In HSCC ’21: Proceedings of the 24th International Conference on Hybrid Systems: Computation and Control, 2102.12734. Association for Computing Machinery, 2021. https://doi.org/10.1145/3447928.3456704."},"publication":"HSCC '21: Proceedings of the 24th International Conference on Hybrid Systems: Computation and Control","page":"2102.12734","date_published":"2021-05-01T00:00:00Z","ec_funded":1,"file_date_updated":"2021-05-25T13:53:22Z","license":"https://creativecommons.org/licenses/by/4.0/","year":"2021","acknowledgement":"This research was supported in part by the Austrian Science Fund (FWF) under grant Z211-N23 (Wittgenstein Award) and the European Union’s Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie grant agreement No. 754411.","publisher":"Association for Computing Machinery","department":[{"_id":"ToHe"}],"publication_status":"published","author":[{"last_name":"Garcia Soto","first_name":"Miriam","orcid":"0000-0003-2936-5719","id":"4B3207F6-F248-11E8-B48F-1D18A9856A87","full_name":"Garcia Soto, Miriam"},{"full_name":"Henzinger, Thomas A","id":"40876CD8-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0002-2985-7724","first_name":"Thomas A","last_name":"Henzinger"},{"last_name":"Schilling","first_name":"Christian","orcid":"0000-0003-3658-1065","id":"3A2F4DCE-F248-11E8-B48F-1D18A9856A87","full_name":"Schilling, Christian"}],"date_updated":"2023-08-07T13:49:33Z","date_created":"2021-02-26T16:30:39Z","publication_identifier":{"isbn":["9781450383394"]},"month":"05","oa":1,"tmp":{"name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","short":"CC BY (4.0)","image":"/images/cc_by.png"},"external_id":{"arxiv":["2102.12734"],"isi":["000932821700028"]},"project":[{"grant_number":"Z211","_id":"25F42A32-B435-11E9-9278-68D0E5697425","call_identifier":"FWF","name":"The Wittgenstein Prize"},{"grant_number":"754411","_id":"260C2330-B435-11E9-9278-68D0E5697425","call_identifier":"H2020","name":"ISTplus - Postdoctoral Fellowships"}],"quality_controlled":"1","isi":1,"doi":"10.1145/3447928.3456704","conference":{"name":"HSCC: International Conference on Hybrid Systems Computation and Control","end_date":"2021-05-21","start_date":"2021-05-19","location":"Nashville, TN, United States"},"language":[{"iso":"eng"}]},{"scopus_import":"1","day":"03","article_processing_charge":"No","publication":"Journal of Computer and System Sciences","citation":{"ista":"Avni G, Henzinger TA, Žikelić Đ. 2021. Bidding mechanisms in graph games. Journal of Computer and System Sciences. 119(8), 133–144.","apa":"Avni, G., Henzinger, T. A., & Žikelić, Đ. (2021). Bidding mechanisms in graph games. Journal of Computer and System Sciences. Elsevier. https://doi.org/10.1016/j.jcss.2021.02.008","ieee":"G. Avni, T. A. Henzinger, and Đ. Žikelić, “Bidding mechanisms in graph games,” Journal of Computer and System Sciences, vol. 119, no. 8. Elsevier, pp. 133–144, 2021.","ama":"Avni G, Henzinger TA, Žikelić Đ. Bidding mechanisms in graph games. Journal of Computer and System Sciences. 2021;119(8):133-144. doi:10.1016/j.jcss.2021.02.008","chicago":"Avni, Guy, Thomas A Henzinger, and Đorđe Žikelić. “Bidding Mechanisms in Graph Games.” Journal of Computer and System Sciences. Elsevier, 2021. https://doi.org/10.1016/j.jcss.2021.02.008.","mla":"Avni, Guy, et al. “Bidding Mechanisms in Graph Games.” Journal of Computer and System Sciences, vol. 119, no. 8, Elsevier, 2021, pp. 133–44, doi:10.1016/j.jcss.2021.02.008.","short":"G. Avni, T.A. Henzinger, Đ. Žikelić, Journal of Computer and System Sciences 119 (2021) 133–144."},"article_type":"original","page":"133-144","date_published":"2021-03-03T00:00:00Z","type":"journal_article","abstract":[{"lang":"eng","text":"A graph game proceeds as follows: two players move a token through a graph to produce a finite or infinite path, which determines the payoff of the game. We study bidding games in which in each turn, an auction determines which player moves the token. Bidding games were largely studied in combination with two variants of first-price auctions called “Richman” and “poorman” bidding. We study taxman bidding, which span the spectrum between the two. The game is parameterized by a constant : portion τ of the winning bid is paid to the other player, and portion to the bank. While finite-duration (reachability) taxman games have been studied before, we present, for the first time, results on infinite-duration taxman games: we unify, generalize, and simplify previous equivalences between bidding games and a class of stochastic games called random-turn games."}],"issue":"8","_id":"9239","user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","status":"public","title":"Bidding mechanisms in graph games","intvolume":" 119","oa_version":"Preprint","month":"03","publication_identifier":{"eissn":["1090-2724"],"issn":["0022-0000"]},"external_id":{"isi":["000634149800009"],"arxiv":["1905.03835"]},"main_file_link":[{"url":"https://doi.org/10.48550/arXiv.1905.03835","open_access":"1"}],"oa":1,"quality_controlled":"1","isi":1,"doi":"10.1016/j.jcss.2021.02.008","language":[{"iso":"eng"}],"year":"2021","publication_status":"published","publisher":"Elsevier","department":[{"_id":"ToHe"}],"author":[{"full_name":"Avni, Guy","first_name":"Guy","last_name":"Avni","id":"463C8BC2-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0001-5588-8287"},{"id":"40876CD8-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0002-2985-7724","first_name":"Thomas A","last_name":"Henzinger","full_name":"Henzinger, Thomas A"},{"last_name":"Žikelić","first_name":"Đorđe","full_name":"Žikelić, Đorđe"}],"related_material":{"record":[{"id":"6884","status":"public","relation":"earlier_version"}]},"date_updated":"2023-08-07T14:08:34Z","date_created":"2021-03-14T23:01:32Z","volume":119},{"month":"06","language":[{"iso":"eng"}],"conference":{"name":"LICS: Symposium on Logic in Computer Science","end_date":"2021-07-02","location":"Online","start_date":"2021-06-29"},"doi":"10.1109/LICS52264.2021.9470547","quality_controlled":"1","isi":1,"project":[{"_id":"25F42A32-B435-11E9-9278-68D0E5697425","grant_number":"Z211","name":"The Wittgenstein Prize","call_identifier":"FWF"}],"oa":1,"external_id":{"arxiv":["2105.08353"],"isi":["000947350400021"]},"file_date_updated":"2021-06-16T08:23:54Z","article_number":"9470547","date_updated":"2023-08-08T13:52:56Z","date_created":"2021-04-30T17:30:47Z","author":[{"full_name":"Henzinger, Thomas A","last_name":"Henzinger","first_name":"Thomas A","orcid":"0000-0002-2985-7724","id":"40876CD8-F248-11E8-B48F-1D18A9856A87"},{"id":"8C6B42F8-C8E6-11E9-A03A-F2DCE5697425","last_name":"Sarac","first_name":"Naci E","full_name":"Sarac, Naci E"}],"publication_status":"published","publisher":"Institute of Electrical and Electronics Engineers","department":[{"_id":"GradSch"},{"_id":"ToHe"}],"acknowledgement":"We thank the anonymous reviewers for their helpful comments. This research was supported in part by the Austrian Science Fund (FWF) under grant Z211-N23 (Wittgenstein Award).","year":"2021","day":"29","has_accepted_license":"1","article_processing_charge":"No","scopus_import":"1","date_published":"2021-06-29T00:00:00Z","publication":"Proceedings of the 36th Annual ACM/IEEE Symposium on Logic in Computer Science","citation":{"short":"T.A. Henzinger, N.E. Sarac, in:, Proceedings of the 36th Annual ACM/IEEE Symposium on Logic in Computer Science, Institute of Electrical and Electronics Engineers, 2021.","mla":"Henzinger, Thomas A., and Naci E. Sarac. “Quantitative and Approximate Monitoring.” Proceedings of the 36th Annual ACM/IEEE Symposium on Logic in Computer Science, 9470547, Institute of Electrical and Electronics Engineers, 2021, doi:10.1109/LICS52264.2021.9470547.","chicago":"Henzinger, Thomas A, and Naci E Sarac. “Quantitative and Approximate Monitoring.” In Proceedings of the 36th Annual ACM/IEEE Symposium on Logic in Computer Science. Institute of Electrical and Electronics Engineers, 2021. https://doi.org/10.1109/LICS52264.2021.9470547.","ama":"Henzinger TA, Sarac NE. Quantitative and approximate monitoring. In: Proceedings of the 36th Annual ACM/IEEE Symposium on Logic in Computer Science. Institute of Electrical and Electronics Engineers; 2021. doi:10.1109/LICS52264.2021.9470547","ieee":"T. A. Henzinger and N. E. Sarac, “Quantitative and approximate monitoring,” in Proceedings of the 36th Annual ACM/IEEE Symposium on Logic in Computer Science, Online, 2021.","apa":"Henzinger, T. A., & Sarac, N. E. (2021). Quantitative and approximate monitoring. In Proceedings of the 36th Annual ACM/IEEE Symposium on Logic in Computer Science. Online: Institute of Electrical and Electronics Engineers. https://doi.org/10.1109/LICS52264.2021.9470547","ista":"Henzinger TA, Sarac NE. 2021. Quantitative and approximate monitoring. Proceedings of the 36th Annual ACM/IEEE Symposium on Logic in Computer Science. LICS: Symposium on Logic in Computer Science, 9470547."},"abstract":[{"lang":"eng","text":"In runtime verification, a monitor watches a trace of a system and, if possible, decides after observing each finite prefix whether or not the unknown infinite trace satisfies a given specification. We generalize the theory of runtime verification to monitors that attempt to estimate numerical values of quantitative trace properties (instead of attempting to conclude boolean values of trace specifications), such as maximal or average response time along a trace. Quantitative monitors are approximate: with every finite prefix, they can improve their estimate of the infinite trace's unknown property value. Consequently, quantitative monitors can be compared with regard to a precision-cost trade-off: better approximations of the property value require more monitor resources, such as states (in the case of finite-state monitors) or registers, and additional resources yield better approximations. We introduce a formal framework for quantitative and approximate monitoring, show how it conservatively generalizes the classical boolean setting for monitoring, and give several precision-cost trade-offs for monitors. For example, we prove that there are quantitative properties for which every additional register improves monitoring precision."}],"type":"conference","oa_version":"Published Version","file":[{"file_name":"qam.pdf","access_level":"open_access","content_type":"application/pdf","file_size":641990,"creator":"esarac","relation":"main_file","file_id":"9557","date_created":"2021-06-16T08:23:54Z","date_updated":"2021-06-16T08:23:54Z","checksum":"6e4cba3f72775f479c5b1b75d1a4a0c4","success":1}],"ddc":["000"],"title":"Quantitative and approximate monitoring","status":"public","user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","_id":"9356"},{"abstract":[{"lang":"eng","text":"Gene expression is regulated by the set of transcription factors (TFs) that bind to the promoter. The ensuing regulating function is often represented as a combinational logic circuit, where output (gene expression) is determined by current input values (promoter bound TFs) only. However, the simultaneous arrival of TFs is a strong assumption, since transcription and translation of genes introduce intrinsic time delays and there is no global synchronisation among the arrival times of different molecular species at their targets. We present an experimentally implementable genetic circuit with two inputs and one output, which in the presence of small delays in input arrival, exhibits qualitatively distinct population-level phenotypes, over timescales that are longer than typical cell doubling times. From a dynamical systems point of view, these phenotypes represent long-lived transients: although they converge to the same value eventually, they do so after a very long time span. The key feature of this toy model genetic circuit is that, despite having only two inputs and one output, it is regulated by twenty-three distinct DNA-TF configurations, two of which are more stable than others (DNA looped states), one promoting and another blocking the expression of the output gene. Small delays in input arrival time result in a majority of cells in the population quickly reaching the stable state associated with the first input, while exiting of this stable state occurs at a slow timescale. In order to mechanistically model the behaviour of this genetic circuit, we used a rule-based modelling language, and implemented a grid-search to find parameter combinations giving rise to long-lived transients. Our analysis shows that in the absence of feedback, there exist path-dependent gene regulatory mechanisms based on the long timescale of transients. The behaviour of this toy model circuit suggests that gene regulatory networks can exploit event timing to create phenotypes, and it opens the possibility that they could use event timing to memorise events, without regulatory feedback. The model reveals the importance of (i) mechanistically modelling the transitions between the different DNA-TF states, and (ii) employing transient analysis thereof."}],"type":"journal_article","file":[{"checksum":"d3aef34cfb13e53bba4cf44d01680793","success":1,"date_updated":"2022-05-12T12:13:27Z","date_created":"2022-05-12T12:13:27Z","relation":"main_file","file_id":"11364","file_size":2566504,"content_type":"application/pdf","creator":"dernst","access_level":"open_access","file_name":"2021_TheoreticalComputerScience_Petrov.pdf"}],"oa_version":"Published Version","_id":"9647","user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","status":"public","ddc":["004"],"title":"Long lived transients in gene regulation","intvolume":" 893","day":"04","has_accepted_license":"1","article_processing_charge":"No","scopus_import":"1","date_published":"2021-06-04T00:00:00Z","publication":"Theoretical Computer Science","citation":{"ieee":"T. Petrov, C. Igler, A. Sezgin, T. A. Henzinger, and C. C. 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Guet, Theoretical Computer Science 893 (2021) 1–16.","mla":"Petrov, Tatjana, et al. “Long Lived Transients in Gene Regulation.” Theoretical Computer Science, vol. 893, Elsevier, 2021, pp. 1–16, doi:10.1016/j.tcs.2021.05.023."},"article_type":"original","page":"1-16","file_date_updated":"2022-05-12T12:13:27Z","license":"https://creativecommons.org/licenses/by-nc-nd/4.0/","author":[{"last_name":"Petrov","first_name":"Tatjana","full_name":"Petrov, Tatjana"},{"id":"46613666-F248-11E8-B48F-1D18A9856A87","first_name":"Claudia","last_name":"Igler","full_name":"Igler, Claudia"},{"full_name":"Sezgin, Ali","id":"4C7638DA-F248-11E8-B48F-1D18A9856A87","last_name":"Sezgin","first_name":"Ali"},{"first_name":"Thomas A","last_name":"Henzinger","id":"40876CD8-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0002-2985-7724","full_name":"Henzinger, Thomas A"},{"full_name":"Guet, Calin C","orcid":"0000-0001-6220-2052","id":"47F8433E-F248-11E8-B48F-1D18A9856A87","last_name":"Guet","first_name":"Calin C"}],"date_updated":"2023-08-10T14:11:19Z","date_created":"2021-07-11T22:01:18Z","volume":893,"acknowledgement":"Tatjana Petrov’s research was supported in part by SNSF Advanced Postdoctoral Mobility Fellowship grant number P300P2 161067, the Ministry of Science, Research and the Arts of the state of Baden-Wurttemberg, and the DFG Centre of Excellence 2117 ‘Centre for the Advanced Study of Collective Behaviour’ (ID: 422037984). Claudia Igler is the recipient of a DOC Fellowship of the Austrian Academy of Sciences. Thomas A. Henzinger’s research was supported in part by the Austrian Science Fund (FWF) under grant Z211-N23 (Wittgenstein Award).","year":"2021","publication_status":"published","publisher":"Elsevier","department":[{"_id":"ToHe"},{"_id":"CaGu"}],"month":"06","publication_identifier":{"issn":["0304-3975"]},"doi":"10.1016/j.tcs.2021.05.023","language":[{"iso":"eng"}],"tmp":{"name":"Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)","legal_code_url":"https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode","short":"CC BY-NC-ND (4.0)","image":"/images/cc_by_nc_nd.png"},"oa":1,"external_id":{"isi":["000710180500002"]},"isi":1,"quality_controlled":"1","project":[{"name":"The Wittgenstein Prize","call_identifier":"FWF","_id":"25F42A32-B435-11E9-9278-68D0E5697425","grant_number":"Z211"}]},{"page":"231-243","citation":{"short":"F. Mühlböck, T.A. Henzinger, in:, International Conference on Runtime Verification, Springer Nature, Cham, 2021, pp. 231–243.","mla":"Mühlböck, Fabian, and Thomas A. Henzinger. “Differential Monitoring.” International Conference on Runtime Verification, vol. 12974, Springer Nature, 2021, pp. 231–43, doi:10.1007/978-3-030-88494-9_12.","chicago":"Mühlböck, Fabian, and Thomas A Henzinger. “Differential Monitoring.” In International Conference on Runtime Verification, 12974:231–43. Cham: Springer Nature, 2021. https://doi.org/10.1007/978-3-030-88494-9_12.","ama":"Mühlböck F, Henzinger TA. Differential monitoring. In: International Conference on Runtime Verification. Vol 12974. Cham: Springer Nature; 2021:231-243. doi:10.1007/978-3-030-88494-9_12","ieee":"F. Mühlböck and T. A. Henzinger, “Differential monitoring,” in International Conference on Runtime Verification, Virtual, 2021, vol. 12974, pp. 231–243.","apa":"Mühlböck, F., & Henzinger, T. A. (2021). Differential monitoring. 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Similar ideas have been proposed before, and are currently implemented in restricted form for testing and specialized run-time analyses, aspects of which we combine. We discuss the challenges of implementing differential monitoring as a general-purpose, black-box run-time monitoring framework, and present promising results of a preliminary implementation, showing low monitoring overheads for diverse programs.","lang":"eng"}],"type":"technical_report","alternative_title":["IST Austria Technical Report"],"file":[{"creator":"fmuehlbo","content_type":"application/pdf","file_size":"320453","file_name":"differentialmonitoring-techreport.pdf","access_level":"open_access","date_created":"2021-08-20T19:59:44Z","date_updated":"2021-09-03T12:34:28Z","checksum":"0f9aafd59444cb6bdca6925d163ab946","file_id":"9948","relation":"main_file"}],"oa_version":"Published Version","_id":"9946","user_id":"8b945eb4-e2f2-11eb-945a-df72226e66a9","ddc":["005"],"status":"public","title":"Differential monitoring","day":"01","has_accepted_license":"1","article_processing_charge":"No","keyword":["run-time verification","software engineering","implicit specification"],"date_published":"2021-09-01T00:00:00Z","citation":{"ama":"Mühlböck F, Henzinger TA. 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M.L. is supported in part by the Austrian Science Fund (FWF) under grant Z211-N23 (Wittgenstein Award). J.B. is supported by the German Federal Ministry of Education and Research\r\n(BMBF) through the Competence Center for Machine Learning (TUE.AI, FKZ 01IS18039A) and the International Max Planck Research School for Intelligent Systems (IMPRS-IS). R.H. is partially supported by Boeing and Horizon-2020 ECSEL (grant 783163, iDev40).\r\n","language":[{"iso":"eng"}],"doi":"10.1111/cgf.14418","isi":1,"quality_controlled":"1","project":[{"name":"The Wittgenstein Prize","call_identifier":"FWF","grant_number":"Z211","_id":"25F42A32-B435-11E9-9278-68D0E5697425"}],"main_file_link":[{"open_access":"1","url":"https://arxiv.org/abs/2110.07667"}],"oa":1,"external_id":{"isi":["000722952000024"],"arxiv":["2110.07667"]},"month":"11","publication_identifier":{"issn":["0167-7055"],"eissn":["1467-8659"]},"oa_version":"Preprint","title":"Interactive analysis of CNN robustness","status":"public","intvolume":" 40","user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","_id":"10404","abstract":[{"text":"While convolutional neural networks (CNNs) have found wide adoption as state-of-the-art models for image-related tasks, their predictions are often highly sensitive to small input perturbations, which the human vision is robust against. This paper presents Perturber, a web-based application that allows users to instantaneously explore how CNN activations and predictions evolve when a 3D input scene is interactively perturbed. Perturber offers a large variety of scene modifications, such as camera controls, lighting and shading effects, background modifications, object morphing, as well as adversarial attacks, to facilitate the discovery of potential vulnerabilities. Fine-tuned model versions can be directly compared for qualitative evaluation of their robustness. Case studies with machine learning experts have shown that Perturber helps users to quickly generate hypotheses about model vulnerabilities and to qualitatively compare model behavior. Using quantitative analyses, we could replicate users’ insights with other CNN architectures and input images, yielding new insights about the vulnerability of adversarially trained models.","lang":"eng"}],"issue":"7","type":"journal_article","date_published":"2021-11-27T00:00:00Z","article_type":"original","page":"253-264","publication":"Computer Graphics Forum","citation":{"ista":"Sietzen S, Lechner M, Borowski J, Hasani R, Waldner M. 2021. Interactive analysis of CNN robustness. Computer Graphics Forum. 40(7), 253–264.","apa":"Sietzen, S., Lechner, M., Borowski, J., Hasani, R., & Waldner, M. (2021). Interactive analysis of CNN robustness. Computer Graphics Forum. Wiley. https://doi.org/10.1111/cgf.14418","ieee":"S. Sietzen, M. Lechner, J. Borowski, R. Hasani, and M. Waldner, “Interactive analysis of CNN robustness,” Computer Graphics Forum, vol. 40, no. 7. Wiley, pp. 253–264, 2021.","ama":"Sietzen S, Lechner M, Borowski J, Hasani R, Waldner M. Interactive analysis of CNN robustness. Computer Graphics Forum. 2021;40(7):253-264. doi:10.1111/cgf.14418","chicago":"Sietzen, Stefan, Mathias Lechner, Judy Borowski, Ramin Hasani, and Manuela Waldner. “Interactive Analysis of CNN Robustness.” Computer Graphics Forum. Wiley, 2021. https://doi.org/10.1111/cgf.14418.","mla":"Sietzen, Stefan, et al. “Interactive Analysis of CNN Robustness.” Computer Graphics Forum, vol. 40, no. 7, Wiley, 2021, pp. 253–64, doi:10.1111/cgf.14418.","short":"S. Sietzen, M. Lechner, J. Borowski, R. Hasani, M. Waldner, Computer Graphics Forum 40 (2021) 253–264."},"day":"27","article_processing_charge":"No","scopus_import":"1"},{"language":[{"iso":"eng"}],"doi":"10.23638/LMCS-17(1:10)2021","quality_controlled":"1","isi":1,"project":[{"_id":"264B3912-B435-11E9-9278-68D0E5697425","grant_number":"M02369","name":"Formal Methods meets Algorithmic Game Theory","call_identifier":"FWF"},{"call_identifier":"FWF","name":"Rigorous Systems Engineering","_id":"25F2ACDE-B435-11E9-9278-68D0E5697425","grant_number":"S11402-N23"},{"grant_number":"Z211","_id":"25F42A32-B435-11E9-9278-68D0E5697425","call_identifier":"FWF","name":"The Wittgenstein Prize"}],"tmp":{"name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","short":"CC BY (4.0)","image":"/images/cc_by.png"},"external_id":{"arxiv":["1905.03588"],"isi":["000658724600010"]},"oa":1,"month":"02","publication_identifier":{"eissn":["1860-5974"]},"date_created":"2022-01-25T16:32:13Z","date_updated":"2023-08-17T06:56:42Z","volume":17,"author":[{"first_name":"Milad","last_name":"Aghajohari","full_name":"Aghajohari, Milad"},{"full_name":"Avni, Guy","orcid":"0000-0001-5588-8287","id":"463C8BC2-F248-11E8-B48F-1D18A9856A87","last_name":"Avni","first_name":"Guy"},{"full_name":"Henzinger, Thomas A","last_name":"Henzinger","first_name":"Thomas A","orcid":"0000-0002-2985-7724","id":"40876CD8-F248-11E8-B48F-1D18A9856A87"}],"publication_status":"published","publisher":"International Federation for Computational Logic","department":[{"_id":"ToHe"}],"acknowledgement":"This research was supported in part by the Austrian Science Fund (FWF) under grants S11402-N23 (RiSE/SHiNE), Z211-N23 (Wittgenstein Award), and M 2369-N33 (Meitner fellowship).\r\n","year":"2021","file_date_updated":"2022-01-26T08:04:50Z","date_published":"2021-02-03T00:00:00Z","article_type":"original","page":"10:1-10:23","publication":"Logical Methods in Computer Science","citation":{"ama":"Aghajohari M, Avni G, Henzinger TA. Determinacy in discrete-bidding infinite-duration games. Logical Methods in Computer Science. 2021;17(1):10:1-10:23. doi:10.23638/LMCS-17(1:10)2021","ieee":"M. Aghajohari, G. Avni, and T. A. Henzinger, “Determinacy in discrete-bidding infinite-duration games,” Logical Methods in Computer Science, vol. 17, no. 1. International Federation for Computational Logic, p. 10:1-10:23, 2021.","apa":"Aghajohari, M., Avni, G., & Henzinger, T. A. (2021). Determinacy in discrete-bidding infinite-duration games. Logical Methods in Computer Science. International Federation for Computational Logic. https://doi.org/10.23638/LMCS-17(1:10)2021","ista":"Aghajohari M, Avni G, Henzinger TA. 2021. Determinacy in discrete-bidding infinite-duration games. Logical Methods in Computer Science. 17(1), 10:1-10:23.","short":"M. Aghajohari, G. Avni, T.A. Henzinger, Logical Methods in Computer Science 17 (2021) 10:1-10:23.","mla":"Aghajohari, Milad, et al. “Determinacy in Discrete-Bidding Infinite-Duration Games.” Logical Methods in Computer Science, vol. 17, no. 1, International Federation for Computational Logic, 2021, p. 10:1-10:23, doi:10.23638/LMCS-17(1:10)2021.","chicago":"Aghajohari, Milad, Guy Avni, and Thomas A Henzinger. “Determinacy in Discrete-Bidding Infinite-Duration Games.” Logical Methods in Computer Science. International Federation for Computational Logic, 2021. https://doi.org/10.23638/LMCS-17(1:10)2021."},"day":"03","has_accepted_license":"1","article_processing_charge":"No","keyword":["computer science","computer science and game theory","logic in computer science"],"scopus_import":"1","file":[{"file_name":"2021_LMCS_AGHAJOHAR.pdf","access_level":"open_access","content_type":"application/pdf","file_size":819878,"creator":"alisjak","relation":"main_file","file_id":"10690","date_created":"2022-01-26T08:04:50Z","date_updated":"2022-01-26T08:04:50Z","checksum":"b35586a50ed1ca8f44767de116d18d81","success":1}],"oa_version":"Published Version","status":"public","title":"Determinacy in discrete-bidding infinite-duration games","ddc":["510"],"intvolume":" 17","user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","_id":"10674","abstract":[{"lang":"eng","text":"In two-player games on graphs, the players move a token through a graph to produce an infinite path, which determines the winner of the game. Such games are central in formal methods since they model the interaction between a non-terminating system and its environment. In bidding games the players bid for the right to move the token: in each round, the players simultaneously submit bids, and the higher bidder moves the token and pays the other player. Bidding games are known to have a clean and elegant mathematical structure that relies on the ability of the players to submit arbitrarily small bids. Many applications, however, require a fixed granularity for the bids, which can represent, for example, the monetary value expressed in cents. We study, for the first time, the combination of discrete-bidding and infinite-duration games. Our most important result proves that these games form a large determined subclass of concurrent games, where determinacy is the strong property that there always exists exactly one player who can guarantee winning the game. In particular, we show that, in contrast to non-discrete bidding games, the mechanism with which tied bids are resolved plays an important role in discrete-bidding games. We study several natural tie-breaking mechanisms and show that, while some do not admit determinacy, most natural mechanisms imply determinacy for every pair of initial budgets."}],"issue":"1","type":"journal_article"},{"year":"2021","acknowledgement":"M.L. and T.A.H. are supported in part by the Austrian Science Fund (FWF) under grant Z211-N23 (Wittgenstein Award). R.H. and D.R. are supported by Boeing and R.G. by Horizon-2020 ECSEL Project grant no. 783163 (iDev40).","department":[{"_id":"GradSch"},{"_id":"ToHe"}],"publication_status":"published","related_material":{"record":[{"relation":"dissertation_contains","status":"public","id":"11362"}]},"author":[{"full_name":"Lechner, Mathias","last_name":"Lechner","first_name":"Mathias","id":"3DC22916-F248-11E8-B48F-1D18A9856A87"},{"full_name":"Hasani, Ramin","last_name":"Hasani","first_name":"Ramin"},{"last_name":"Grosu","first_name":"Radu","full_name":"Grosu, Radu"},{"full_name":"Rus, Daniela","last_name":"Rus","first_name":"Daniela"},{"full_name":"Henzinger, Thomas A","first_name":"Thomas A","last_name":"Henzinger","id":"40876CD8-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0002-2985-7724"}],"date_updated":"2023-08-17T06:58:38Z","date_created":"2022-01-25T15:44:54Z","tmp":{"name":"Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported (CC BY-NC-ND 3.0)","legal_code_url":"https://creativecommons.org/licenses/by-nc-nd/3.0/legalcode","short":"CC BY-NC-ND (3.0)","image":"/images/cc_by_nc_nd.png"},"oa":1,"external_id":{"arxiv":["2103.08187"],"isi":["000765738803040"]},"main_file_link":[{"url":"https://arxiv.org/abs/2103.08187","open_access":"1"}],"project":[{"name":"The Wittgenstein Prize","call_identifier":"FWF","grant_number":"Z211","_id":"25F42A32-B435-11E9-9278-68D0E5697425"}],"isi":1,"quality_controlled":"1","doi":"10.1109/ICRA48506.2021.9561036","conference":{"end_date":"2021-06-05","location":"Xi'an, China","start_date":"2021-05-30","name":"ICRA: International Conference on Robotics and Automation"},"language":[{"iso":"eng"}],"publication_identifier":{"eisbn":["978-1-7281-9077-8"],"issn":["1050-4729"],"isbn":["978-1-7281-9078-5"],"eissn":["2577-087X"]},"user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","_id":"10666","status":"public","ddc":["000"],"title":"Adversarial training is not ready for robot learning","oa_version":"None","type":"conference","abstract":[{"text":"Adversarial training is an effective method to train deep learning models that are resilient to norm-bounded perturbations, with the cost of nominal performance drop. While adversarial training appears to enhance the robustness and safety of a deep model deployed in open-world decision-critical applications, counterintuitively, it induces undesired behaviors in robot learning settings. In this paper, we show theoretically and experimentally that neural controllers obtained via adversarial training are subjected to three types of defects, namely transient, systematic, and conditional errors. We first generalize adversarial training to a safety-domain optimization scheme allowing for more generic specifications. We then prove that such a learning process tends to cause certain error profiles. We support our theoretical results by a thorough experimental safety analysis in a robot-learning task. Our results suggest that adversarial training is not yet ready for robot learning.","lang":"eng"}],"citation":{"chicago":"Lechner, Mathias, Ramin Hasani, Radu Grosu, Daniela Rus, and Thomas A Henzinger. “Adversarial Training Is Not Ready for Robot Learning.” In 2021 IEEE International Conference on Robotics and Automation, 4140–47. ICRA, 2021. https://doi.org/10.1109/ICRA48506.2021.9561036.","mla":"Lechner, Mathias, et al. “Adversarial Training Is Not Ready for Robot Learning.” 2021 IEEE International Conference on Robotics and Automation, 2021, pp. 4140–47, doi:10.1109/ICRA48506.2021.9561036.","short":"M. Lechner, R. Hasani, R. Grosu, D. Rus, T.A. Henzinger, in:, 2021 IEEE International Conference on Robotics and Automation, 2021, pp. 4140–4147.","ista":"Lechner M, Hasani R, Grosu R, Rus D, Henzinger TA. 2021. Adversarial training is not ready for robot learning. 2021 IEEE International Conference on Robotics and Automation. ICRA: International Conference on Robotics and AutomationICRA, 4140–4147.","ieee":"M. Lechner, R. Hasani, R. Grosu, D. Rus, and T. A. Henzinger, “Adversarial training is not ready for robot learning,” in 2021 IEEE International Conference on Robotics and Automation, Xi’an, China, 2021, pp. 4140–4147.","apa":"Lechner, M., Hasani, R., Grosu, R., Rus, D., & Henzinger, T. A. (2021). Adversarial training is not ready for robot learning. In 2021 IEEE International Conference on Robotics and Automation (pp. 4140–4147). Xi’an, China. https://doi.org/10.1109/ICRA48506.2021.9561036","ama":"Lechner M, Hasani R, Grosu R, Rus D, Henzinger TA. Adversarial training is not ready for robot learning. In: 2021 IEEE International Conference on Robotics and Automation. ICRA. ; 2021:4140-4147. doi:10.1109/ICRA48506.2021.9561036"},"publication":"2021 IEEE International Conference on Robotics and Automation","page":"4140-4147","date_published":"2021-01-01T00:00:00Z","series_title":"ICRA","article_processing_charge":"No","has_accepted_license":"1"},{"publisher":"Springer Nature","department":[{"_id":"ToHe"}],"publication_status":"published","year":"2021","acknowledgement":"We thank Christoph Lampert and Alex Greengold for fruitful discussions. This research was supported in part by the Simons Institute for the Theory of Computing, the Austrian Science Fund (FWF) under grant Z211-N23 (Wittgenstein Award), and the European Union’s Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie grant agreement No. 754411.","volume":"12974 ","date_created":"2021-10-31T23:01:31Z","date_updated":"2024-01-30T12:06:56Z","related_material":{"record":[{"relation":"extended_version","status":"public","id":"13234"}]},"author":[{"full_name":"Lukina, Anna","last_name":"Lukina","first_name":"Anna","id":"CBA4D1A8-0FE8-11E9-BDE6-07BFE5697425"},{"full_name":"Schilling, Christian","last_name":"Schilling","first_name":"Christian","orcid":"0000-0003-3658-1065","id":"3A2F4DCE-F248-11E8-B48F-1D18A9856A87"},{"full_name":"Henzinger, Thomas A","orcid":"0000-0002-2985-7724","id":"40876CD8-F248-11E8-B48F-1D18A9856A87","last_name":"Henzinger","first_name":"Thomas A"}],"place":"Cham","ec_funded":1,"project":[{"_id":"260C2330-B435-11E9-9278-68D0E5697425","grant_number":"754411","call_identifier":"H2020","name":"ISTplus - Postdoctoral Fellowships"},{"_id":"25F42A32-B435-11E9-9278-68D0E5697425","grant_number":"Z211","call_identifier":"FWF","name":"The Wittgenstein Prize"}],"isi":1,"quality_controlled":"1","external_id":{"isi":["000719383800003"],"arxiv":["2009.06429"]},"main_file_link":[{"open_access":"1","url":"https://arxiv.org/abs/2009.06429"}],"oa":1,"language":[{"iso":"eng"}],"doi":"10.1007/978-3-030-88494-9_3","conference":{"end_date":"2021-10-14","start_date":"2021-10-11","location":"Virtual","name":"RV: Runtime Verification"},"publication_identifier":{"isbn":["9-783-0308-8493-2"],"eissn":["1611-3349"],"issn":["0302-9743"],"eisbn":["978-3-030-88494-9"]},"month":"10","title":"Into the unknown: active monitoring of neural networks","status":"public","user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","_id":"10206","oa_version":"Preprint","alternative_title":["LNCS"],"type":"conference","abstract":[{"lang":"eng","text":"Neural-network classifiers achieve high accuracy when predicting the class of an input that they were trained to identify. Maintaining this accuracy in dynamic environments, where inputs frequently fall outside the fixed set of initially known classes, remains a challenge. The typical approach is to detect inputs from novel classes and retrain the classifier on an augmented dataset. However, not only the classifier but also the detection mechanism needs to adapt in order to distinguish between newly learned and yet unknown input classes. To address this challenge, we introduce an algorithmic framework for active monitoring of a neural network. A monitor wrapped in our framework operates in parallel with the neural network and interacts with a human user via a series of interpretable labeling queries for incremental adaptation. In addition, we propose an adaptive quantitative monitor to improve precision. An experimental evaluation on a diverse set of benchmarks with varying numbers of classes confirms the benefits of our active monitoring framework in dynamic scenarios."}],"page":"42-61","citation":{"short":"A. Lukina, C. Schilling, T.A. Henzinger, in:, 21st International Conference on Runtime Verification, Springer Nature, Cham, 2021, pp. 42–61.","mla":"Lukina, Anna, et al. “Into the Unknown: Active Monitoring of Neural Networks.” 21st International Conference on Runtime Verification, vol. 12974, Springer Nature, 2021, pp. 42–61, doi:10.1007/978-3-030-88494-9_3.","chicago":"Lukina, Anna, Christian Schilling, and Thomas A Henzinger. “Into the Unknown: Active Monitoring of Neural Networks.” In 21st International Conference on Runtime Verification, 12974:42–61. Cham: Springer Nature, 2021. https://doi.org/10.1007/978-3-030-88494-9_3.","ama":"Lukina A, Schilling C, Henzinger TA. Into the unknown: active monitoring of neural networks. In: 21st International Conference on Runtime Verification. Vol 12974. Cham: Springer Nature; 2021:42-61. doi:10.1007/978-3-030-88494-9_3","apa":"Lukina, A., Schilling, C., & Henzinger, T. A. (2021). Into the unknown: active monitoring of neural networks. In 21st International Conference on Runtime Verification (Vol. 12974, pp. 42–61). Cham: Springer Nature. https://doi.org/10.1007/978-3-030-88494-9_3","ieee":"A. Lukina, C. Schilling, and T. A. Henzinger, “Into the unknown: active monitoring of neural networks,” in 21st International Conference on Runtime Verification, Virtual, 2021, vol. 12974, pp. 42–61.","ista":"Lukina A, Schilling C, Henzinger TA. 2021. Into the unknown: active monitoring of neural networks. 21st International Conference on Runtime Verification. RV: Runtime Verification, LNCS, vol. 12974, 42–61."},"publication":"21st International Conference on Runtime Verification","date_published":"2021-10-06T00:00:00Z","keyword":["monitoring","neural networks","novelty detection"],"scopus_import":"1","article_processing_charge":"No","day":"06"},{"page":"4082-4093","citation":{"ama":"Hasani R, Lechner M, Amini A, Rus D, Grosu R. A natural lottery ticket winner: Reinforcement learning with ordinary neural circuits. In: Proceedings of the 37th International Conference on Machine Learning. PMLR. ; 2020:4082-4093.","ieee":"R. Hasani, M. Lechner, A. Amini, D. Rus, and R. Grosu, “A natural lottery ticket winner: Reinforcement learning with ordinary neural circuits,” in Proceedings of the 37th International Conference on Machine Learning, Virtual, 2020, pp. 4082–4093.","apa":"Hasani, R., Lechner, M., Amini, A., Rus, D., & Grosu, R. (2020). A natural lottery ticket winner: Reinforcement learning with ordinary neural circuits. In Proceedings of the 37th International Conference on Machine Learning (pp. 4082–4093). Virtual.","ista":"Hasani R, Lechner M, Amini A, Rus D, Grosu R. 2020. A natural lottery ticket winner: Reinforcement learning with ordinary neural circuits. Proceedings of the 37th International Conference on Machine Learning. ML: Machine LearningPMLR, PMLR, , 4082–4093.","short":"R. Hasani, M. Lechner, A. Amini, D. Rus, R. Grosu, in:, Proceedings of the 37th International Conference on Machine Learning, 2020, pp. 4082–4093.","mla":"Hasani, Ramin, et al. “A Natural Lottery Ticket Winner: Reinforcement Learning with Ordinary Neural Circuits.” Proceedings of the 37th International Conference on Machine Learning, 2020, pp. 4082–93.","chicago":"Hasani, Ramin, Mathias Lechner, Alexander Amini, Daniela Rus, and Radu Grosu. “A Natural Lottery Ticket Winner: Reinforcement Learning with Ordinary Neural Circuits.” In Proceedings of the 37th International Conference on Machine Learning, 4082–93. PMLR, 2020."},"publication":"Proceedings of the 37th International Conference on Machine Learning","date_published":"2020-01-01T00:00:00Z","series_title":"PMLR","scopus_import":"1","has_accepted_license":"1","article_processing_charge":"No","title":"A natural lottery ticket winner: Reinforcement learning with ordinary neural circuits","status":"public","ddc":["000"],"user_id":"8b945eb4-e2f2-11eb-945a-df72226e66a9","_id":"10673","file":[{"file_id":"10691","relation":"main_file","date_created":"2022-01-26T11:08:51Z","date_updated":"2022-01-26T11:08:51Z","success":1,"checksum":"c9a4a29161777fc1a89ef451c040e3b1","file_name":"2020_PMLR_Hasani.pdf","access_level":"open_access","creator":"cchlebak","file_size":2329798,"content_type":"application/pdf"}],"oa_version":"Published Version","alternative_title":["PMLR"],"type":"conference","abstract":[{"text":"We propose a neural information processing system obtained by re-purposing the function of a biological neural circuit model to govern simulated and real-world control tasks. Inspired by the structure of the nervous system of the soil-worm, C. elegans, we introduce ordinary neural circuits (ONCs), defined as the model of biological neural circuits reparameterized for the control of alternative tasks. We first demonstrate that ONCs realize networks with higher maximum flow compared to arbitrary wired networks. We then learn instances of ONCs to control a series of robotic tasks, including the autonomous parking of a real-world rover robot. For reconfiguration of the purpose of the neural circuit, we adopt a search-based optimization algorithm. Ordinary neural circuits perform on par and, in some cases, significantly surpass the performance of contemporary deep learning models. ONC networks are compact, 77% sparser than their counterpart neural controllers, and their neural dynamics are fully interpretable at the cell-level.","lang":"eng"}],"project":[{"call_identifier":"FWF","name":"The Wittgenstein Prize","_id":"25F42A32-B435-11E9-9278-68D0E5697425","grant_number":"Z211"}],"quality_controlled":"1","tmp":{"name":"Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported (CC BY-NC-ND 3.0)","legal_code_url":"https://creativecommons.org/licenses/by-nc-nd/3.0/legalcode","short":"CC BY-NC-ND (3.0)","image":"/images/cc_by_nc_nd.png"},"main_file_link":[{"open_access":"1","url":"http://proceedings.mlr.press/v119/hasani20a.html"}],"oa":1,"language":[{"iso":"eng"}],"conference":{"name":"ML: Machine Learning","end_date":"2020-07-18","location":"Virtual","start_date":"2020-07-12"},"publication_identifier":{"issn":["2640-3498"]},"department":[{"_id":"GradSch"},{"_id":"ToHe"}],"publication_status":"published","acknowledgement":"RH and RG are partially supported by Horizon-2020 ECSEL Project grant No. 783163 (iDev40), Productive 4.0, and ATBMBFW CPS-IoT Ecosystem. ML was supported in part by the Austrian Science Fund (FWF) under grant Z211-N23\r\n(Wittgenstein Award). AA is supported by the National Science Foundation (NSF) Graduate Research Fellowship\r\nProgram. RH and DR are partially supported by The Boeing Company and JP Morgan Chase. This research work is\r\npartially drawn from the PhD dissertation of RH.\r\n","year":"2020","date_created":"2022-01-25T15:50:34Z","date_updated":"2022-01-26T11:14:27Z","author":[{"full_name":"Hasani, Ramin","first_name":"Ramin","last_name":"Hasani"},{"id":"3DC22916-F248-11E8-B48F-1D18A9856A87","last_name":"Lechner","first_name":"Mathias","full_name":"Lechner, Mathias"},{"full_name":"Amini, Alexander","last_name":"Amini","first_name":"Alexander"},{"last_name":"Rus","first_name":"Daniela","full_name":"Rus, Daniela"},{"full_name":"Grosu, Radu","last_name":"Grosu","first_name":"Radu"}],"file_date_updated":"2022-01-26T11:08:51Z"},{"alternative_title":["LIPIcs"],"type":"conference","abstract":[{"lang":"eng","text":"The monitoring of event frequencies can be used to recognize behavioral anomalies, to identify trends, and to deduce or discard hypotheses about the underlying system. For example, the performance of a web server may be monitored based on the ratio of the total count of requests from the least and most active clients. Exact frequency monitoring, however, can be prohibitively expensive; in the above example it would require as many counters as there are clients. In this paper, we propose the efficient probabilistic monitoring of common frequency properties, including the mode (i.e., the most common event) and the median of an event sequence. We define a logic to express composite frequency properties as a combination of atomic frequency properties. Our main contribution is an algorithm that, under suitable probabilistic assumptions, can be used to monitor these important frequency properties with four counters, independent of the number of different events. Our algorithm samples longer and longer subwords of an infinite event sequence. We prove the almost-sure convergence of our algorithm by generalizing ergodic theory from increasing-length prefixes to increasing-length subwords of an infinite sequence. A similar algorithm could be used to learn a connected Markov chain of a given structure from observing its outputs, to arbitrary precision, for a given confidence. "}],"intvolume":" 152","title":"Monitoring event frequencies","status":"public","ddc":["000"],"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","_id":"7348","oa_version":"Published Version","file":[{"access_level":"open_access","file_name":"main.pdf","creator":"bkragl","content_type":"application/pdf","file_size":617206,"file_id":"7349","relation":"main_file","checksum":"b9a691d658d075c6369d3304d17fb818","date_updated":"2020-07-14T12:47:56Z","date_created":"2020-01-21T11:21:04Z"}],"scopus_import":1,"article_processing_charge":"No","has_accepted_license":"1","day":"15","citation":{"ama":"Ferrere T, Henzinger TA, Kragl B. Monitoring event frequencies. In: 28th EACSL Annual Conference on Computer Science Logic. Vol 152. Schloss Dagstuhl - Leibniz-Zentrum für Informatik; 2020. doi:10.4230/LIPIcs.CSL.2020.20","ieee":"T. Ferrere, T. A. Henzinger, and B. Kragl, “Monitoring event frequencies,” in 28th EACSL Annual Conference on Computer Science Logic, Barcelona, Spain, 2020, vol. 152.","apa":"Ferrere, T., Henzinger, T. A., & Kragl, B. (2020). Monitoring event frequencies. In 28th EACSL Annual Conference on Computer Science Logic (Vol. 152). Barcelona, Spain: Schloss Dagstuhl - Leibniz-Zentrum für Informatik. https://doi.org/10.4230/LIPIcs.CSL.2020.20","ista":"Ferrere T, Henzinger TA, Kragl B. 2020. Monitoring event frequencies. 28th EACSL Annual Conference on Computer Science Logic. CSL: Computer Science Logic, LIPIcs, vol. 152, 20.","short":"T. Ferrere, T.A. Henzinger, B. Kragl, in:, 28th EACSL Annual Conference on Computer Science Logic, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2020.","mla":"Ferrere, Thomas, et al. “Monitoring Event Frequencies.” 28th EACSL Annual Conference on Computer Science Logic, vol. 152, 20, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2020, doi:10.4230/LIPIcs.CSL.2020.20.","chicago":"Ferrere, Thomas, Thomas A Henzinger, and Bernhard Kragl. “Monitoring Event Frequencies.” In 28th EACSL Annual Conference on Computer Science Logic, Vol. 152. Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2020. https://doi.org/10.4230/LIPIcs.CSL.2020.20."},"publication":"28th EACSL Annual Conference on Computer Science Logic","date_published":"2020-01-15T00:00:00Z","article_number":"20","file_date_updated":"2020-07-14T12:47:56Z","department":[{"_id":"ToHe"}],"publisher":"Schloss Dagstuhl - Leibniz-Zentrum für Informatik","publication_status":"published","year":"2020","volume":152,"date_updated":"2021-01-12T08:13:12Z","date_created":"2020-01-21T11:22:21Z","author":[{"orcid":"0000-0001-5199-3143","id":"40960E6E-F248-11E8-B48F-1D18A9856A87","last_name":"Ferrere","first_name":"Thomas","full_name":"Ferrere, Thomas"},{"full_name":"Henzinger, Thomas A","id":"40876CD8-F248-11E8-B48F-1D18A9856A87","orcid":"0000−0002−2985−7724","first_name":"Thomas A","last_name":"Henzinger"},{"first_name":"Bernhard","last_name":"Kragl","id":"320FC952-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0001-7745-9117","full_name":"Kragl, Bernhard"}],"publication_identifier":{"isbn":["9783959771320"],"issn":["1868-8969"]},"month":"01","project":[{"_id":"25F2ACDE-B435-11E9-9278-68D0E5697425","grant_number":"S11402-N23","name":"Rigorous Systems Engineering","call_identifier":"FWF"},{"grant_number":"Z211","_id":"25F42A32-B435-11E9-9278-68D0E5697425","call_identifier":"FWF","name":"The Wittgenstein Prize"}],"quality_controlled":"1","external_id":{"arxiv":["1910.06097"]},"tmp":{"name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","short":"CC BY (4.0)","image":"/images/cc_by.png"},"oa":1,"language":[{"iso":"eng"}],"doi":"10.4230/LIPIcs.CSL.2020.20","conference":{"end_date":"2020-01-16","location":"Barcelona, Spain","start_date":"2020-01-13","name":"CSL: Computer Science Logic"}},{"oa_version":"Published Version","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","_id":"8572","title":"ARCH-COMP20 Category Report: Continuous and hybrid systems with linear dynamics","status":"public","intvolume":" 74","abstract":[{"lang":"eng","text":"We present the results of the ARCH 2020 friendly competition for formal verification of continuous and hybrid systems with linear continuous dynamics. In its fourth edition, eight tools have been applied to solve eight different benchmark problems in the category for linear continuous dynamics (in alphabetical order): CORA, C2E2, HyDRA, Hylaa, Hylaa-Continuous, JuliaReach, SpaceEx, and XSpeed. This report is a snapshot of the current landscape of tools and the types of benchmarks they are particularly suited for. Due to the diversity of problems, we are not ranking tools, yet the presented results provide one of the most complete assessments of tools for the safety verification of continuous and hybrid systems with linear continuous dynamics up to this date."}],"type":"conference","date_published":"2020-09-25T00:00:00Z","publication":"EPiC Series in Computing","citation":{"chicago":"Althoff, Matthias, Stanley Bak, Zongnan Bao, Marcelo Forets, Goran Frehse, Daniel Freire, Niklas Kochdumper, et al. “ARCH-COMP20 Category Report: Continuous and Hybrid Systems with Linear Dynamics.” In EPiC Series in Computing, 74:16–48. EasyChair, 2020. https://doi.org/10.29007/7dt2.","short":"M. Althoff, S. Bak, Z. Bao, M. Forets, G. Frehse, D. Freire, N. Kochdumper, Y. Li, S. Mitra, R. Ray, C. Schilling, S. Schupp, M. Wetzlinger, in:, EPiC Series in Computing, EasyChair, 2020, pp. 16–48.","mla":"Althoff, Matthias, et al. “ARCH-COMP20 Category Report: Continuous and Hybrid Systems with Linear Dynamics.” EPiC Series in Computing, vol. 74, EasyChair, 2020, pp. 16–48, doi:10.29007/7dt2.","apa":"Althoff, M., Bak, S., Bao, Z., Forets, M., Frehse, G., Freire, D., … Wetzlinger, M. (2020). ARCH-COMP20 Category Report: Continuous and hybrid systems with linear dynamics. In EPiC Series in Computing (Vol. 74, pp. 16–48). EasyChair. https://doi.org/10.29007/7dt2","ieee":"M. Althoff et al., “ARCH-COMP20 Category Report: Continuous and hybrid systems with linear dynamics,” in EPiC Series in Computing, 2020, vol. 74, pp. 16–48.","ista":"Althoff M, Bak S, Bao Z, Forets M, Frehse G, Freire D, Kochdumper N, Li Y, Mitra S, Ray R, Schilling C, Schupp S, Wetzlinger M. 2020. ARCH-COMP20 Category Report: Continuous and hybrid systems with linear dynamics. EPiC Series in Computing. ARCH: International Workshop on Applied Verification on Continuous and Hybrid Systems vol. 74, 16–48.","ama":"Althoff M, Bak S, Bao Z, et al. ARCH-COMP20 Category Report: Continuous and hybrid systems with linear dynamics. In: EPiC Series in Computing. Vol 74. EasyChair; 2020:16-48. doi:10.29007/7dt2"},"page":"16-48","day":"25","article_processing_charge":"No","author":[{"first_name":"Matthias","last_name":"Althoff","full_name":"Althoff, Matthias"},{"first_name":"Stanley","last_name":"Bak","full_name":"Bak, Stanley"},{"full_name":"Bao, Zongnan","last_name":"Bao","first_name":"Zongnan"},{"full_name":"Forets, Marcelo","first_name":"Marcelo","last_name":"Forets"},{"full_name":"Frehse, Goran","first_name":"Goran","last_name":"Frehse"},{"full_name":"Freire, Daniel","last_name":"Freire","first_name":"Daniel"},{"first_name":"Niklas","last_name":"Kochdumper","full_name":"Kochdumper, Niklas"},{"last_name":"Li","first_name":"Yangge","full_name":"Li, Yangge"},{"first_name":"Sayan","last_name":"Mitra","full_name":"Mitra, Sayan"},{"full_name":"Ray, Rajarshi","last_name":"Ray","first_name":"Rajarshi"},{"full_name":"Schilling, Christian","first_name":"Christian","last_name":"Schilling","id":"3A2F4DCE-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0003-3658-1065"},{"full_name":"Schupp, Stefan","first_name":"Stefan","last_name":"Schupp"},{"full_name":"Wetzlinger, Mark","first_name":"Mark","last_name":"Wetzlinger"}],"date_created":"2020-09-26T14:49:43Z","date_updated":"2021-01-12T08:20:06Z","volume":74,"year":"2020","acknowledgement":"The authors gratefully acknowledge financial support by the European Commission project\r\njustITSELF under grant number 817629, by the Austrian Science Fund (FWF) under grant\r\nZ211-N23 (Wittgenstein Award), by the European Union’s Horizon 2020 research and innovation programme under the Marie Sk lodowska-Curie grant agreement No. 754411, and by the\r\nScience and Engineering Research Board (SERB) project with file number IMP/2018/000523.\r\nThis material is based upon work supported by the Air Force Office of Scientific Research under\r\naward number FA9550-19-1-0288. Any opinions, finding, and conclusions or recommendations\r\nexpressed in this material are those of the author(s) and do not necessarily reflect the views of\r\nthe United States Air Force.","publication_status":"published","department":[{"_id":"ToHe"}],"publisher":"EasyChair","ec_funded":1,"conference":{"name":"ARCH: International Workshop on Applied Verification on Continuous and Hybrid Systems","start_date":"2020-07-12","end_date":"2020-07-12"},"doi":"10.29007/7dt2","language":[{"iso":"eng"}],"oa":1,"main_file_link":[{"open_access":"1","url":"https://easychair.org/publications/download/DRpS"}],"quality_controlled":"1","project":[{"_id":"25C5A090-B435-11E9-9278-68D0E5697425","grant_number":"Z00312","name":"The Wittgenstein Prize","call_identifier":"FWF"},{"_id":"260C2330-B435-11E9-9278-68D0E5697425","grant_number":"754411","name":"ISTplus - Postdoctoral Fellowships","call_identifier":"H2020"}],"month":"09"},{"month":"09","project":[{"call_identifier":"H2020","name":"ISTplus - Postdoctoral Fellowships","_id":"260C2330-B435-11E9-9278-68D0E5697425","grant_number":"754411"},{"call_identifier":"FWF","name":"The Wittgenstein Prize","grant_number":"Z211","_id":"25F42A32-B435-11E9-9278-68D0E5697425"}],"quality_controlled":"1","oa":1,"main_file_link":[{"open_access":"1","url":"https://easychair.org/publications/download/nrdD"}],"language":[{"iso":"eng"}],"doi":"10.29007/zkf6","conference":{"name":"ARCH: International Workshop on Applied Verification on Continuous and Hybrid Systems","end_date":"2020-07-12","start_date":"2020-07-12"},"ec_funded":1,"publisher":"EasyChair","department":[{"_id":"ToHe"}],"publication_status":"published","year":"2020","acknowledgement":"Christian Schilling acknowledges support in part by the Austrian Science Fund (FWF) under grant Z211-N23 (Wittgenstein Award) and the European Union’s Horizon 2020 research and innovation programme under the Marie Sk lodowska-Curie grant agreement No. 754411.","volume":74,"date_created":"2020-09-26T14:41:29Z","date_updated":"2021-01-12T08:20:06Z","author":[{"last_name":"Geretti","first_name":"Luca","full_name":"Geretti, Luca"},{"first_name":"Julien","last_name":"Alexandre Dit Sandretto","full_name":"Alexandre Dit Sandretto, Julien"},{"full_name":"Althoff, Matthias","first_name":"Matthias","last_name":"Althoff"},{"full_name":"Benet, Luis","first_name":"Luis","last_name":"Benet"},{"full_name":"Chapoutot, Alexandre","first_name":"Alexandre","last_name":"Chapoutot"},{"full_name":"Chen, Xin","first_name":"Xin","last_name":"Chen"},{"full_name":"Collins, Pieter","last_name":"Collins","first_name":"Pieter"},{"full_name":"Forets, Marcelo","last_name":"Forets","first_name":"Marcelo"},{"full_name":"Freire, Daniel","first_name":"Daniel","last_name":"Freire"},{"full_name":"Immler, Fabian","last_name":"Immler","first_name":"Fabian"},{"full_name":"Kochdumper, Niklas","last_name":"Kochdumper","first_name":"Niklas"},{"full_name":"Sanders, David","last_name":"Sanders","first_name":"David"},{"full_name":"Schilling, Christian","id":"3A2F4DCE-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0003-3658-1065","first_name":"Christian","last_name":"Schilling"}],"article_processing_charge":"No","day":"25","page":"49-75","citation":{"chicago":"Geretti, Luca, Julien Alexandre Dit Sandretto, Matthias Althoff, Luis Benet, Alexandre Chapoutot, Xin Chen, Pieter Collins, et al. “ARCH-COMP20 Category Report: Continuous and Hybrid Systems with Nonlinear Dynamics.” In EPiC Series in Computing, 74:49–75. EasyChair, 2020. https://doi.org/10.29007/zkf6.","mla":"Geretti, Luca, et al. “ARCH-COMP20 Category Report: Continuous and Hybrid Systems with Nonlinear Dynamics.” EPiC Series in Computing, vol. 74, EasyChair, 2020, pp. 49–75, doi:10.29007/zkf6.","short":"L. Geretti, J. Alexandre Dit Sandretto, M. Althoff, L. Benet, A. Chapoutot, X. Chen, P. Collins, M. Forets, D. Freire, F. Immler, N. Kochdumper, D. Sanders, C. Schilling, in:, EPiC Series in Computing, EasyChair, 2020, pp. 49–75.","ista":"Geretti L, Alexandre Dit Sandretto J, Althoff M, Benet L, Chapoutot A, Chen X, Collins P, Forets M, Freire D, Immler F, Kochdumper N, Sanders D, Schilling C. 2020. ARCH-COMP20 Category Report: Continuous and hybrid systems with nonlinear dynamics. EPiC Series in Computing. ARCH: International Workshop on Applied Verification on Continuous and Hybrid Systems vol. 74, 49–75.","ieee":"L. Geretti et al., “ARCH-COMP20 Category Report: Continuous and hybrid systems with nonlinear dynamics,” in EPiC Series in Computing, 2020, vol. 74, pp. 49–75.","apa":"Geretti, L., Alexandre Dit Sandretto, J., Althoff, M., Benet, L., Chapoutot, A., Chen, X., … Schilling, C. (2020). ARCH-COMP20 Category Report: Continuous and hybrid systems with nonlinear dynamics. In EPiC Series in Computing (Vol. 74, pp. 49–75). EasyChair. https://doi.org/10.29007/zkf6","ama":"Geretti L, Alexandre Dit Sandretto J, Althoff M, et al. ARCH-COMP20 Category Report: Continuous and hybrid systems with nonlinear dynamics. In: EPiC Series in Computing. Vol 74. EasyChair; 2020:49-75. doi:10.29007/zkf6"},"publication":"EPiC Series in Computing","date_published":"2020-09-25T00:00:00Z","type":"conference","abstract":[{"text":"We present the results of a friendly competition for formal verification of continuous and hybrid systems with nonlinear continuous dynamics. The friendly competition took place as part of the workshop Applied Verification for Continuous and Hybrid Systems (ARCH) in 2020. This year, 6 tools Ariadne, CORA, DynIbex, Flow*, Isabelle/HOL, and JuliaReach (in alphabetic order) participated. These tools are applied to solve reachability analysis problems on six benchmark problems, two of them featuring hybrid dynamics. We do not rank the tools based on the results, but show the current status and discover the potential advantages of different tools.","lang":"eng"}],"intvolume":" 74","title":"ARCH-COMP20 Category Report: Continuous and hybrid systems with nonlinear dynamics","status":"public","_id":"8571","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","oa_version":"Published Version"},{"license":"https://creativecommons.org/licenses/by/3.0/","file_date_updated":"2020-10-05T14:04:25Z","article_number":"23","date_created":"2020-10-04T22:01:36Z","date_updated":"2021-01-12T08:20:15Z","volume":171,"author":[{"full_name":"Chatterjee, Krishnendu","last_name":"Chatterjee","first_name":"Krishnendu","orcid":"0000-0002-4561-241X","id":"2E5DCA20-F248-11E8-B48F-1D18A9856A87"},{"orcid":"0000-0002-2985-7724","id":"40876CD8-F248-11E8-B48F-1D18A9856A87","last_name":"Henzinger","first_name":"Thomas A","full_name":"Henzinger, Thomas A"},{"id":"2FC5DA74-F248-11E8-B48F-1D18A9856A87","first_name":"Jan","last_name":"Otop","full_name":"Otop, Jan"}],"publication_status":"published","publisher":"Schloss Dagstuhl - Leibniz-Zentrum für Informatik","department":[{"_id":"KrCh"},{"_id":"ToHe"}],"year":"2020","month":"08","publication_identifier":{"isbn":["9783959771603"],"issn":["18688969"]},"language":[{"iso":"eng"}],"conference":{"name":"CONCUR: Conference on Concurrency Theory","end_date":"2020-09-04","location":"Virtual","start_date":"2020-09-01"},"doi":"10.4230/LIPIcs.CONCUR.2020.23","quality_controlled":"1","project":[{"name":"Rigorous Systems Engineering","call_identifier":"FWF","_id":"25832EC2-B435-11E9-9278-68D0E5697425","grant_number":"S 11407_N23"},{"grant_number":"S11402-N23","_id":"25F2ACDE-B435-11E9-9278-68D0E5697425","call_identifier":"FWF","name":"Rigorous Systems Engineering"},{"grant_number":"Z211","_id":"25F42A32-B435-11E9-9278-68D0E5697425","name":"The Wittgenstein Prize","call_identifier":"FWF"}],"tmp":{"legal_code_url":"https://creativecommons.org/licenses/by/3.0/legalcode","name":"Creative Commons Attribution 3.0 Unported (CC BY 3.0)","short":"CC BY (3.0)","image":"/images/cc_by.png"},"oa":1,"external_id":{"arxiv":["2007.08917"]},"abstract":[{"text":"A vector addition system with states (VASS) consists of a finite set of states and counters. A transition changes the current state to the next state, and every counter is either incremented, or decremented, or left unchanged. A state and value for each counter is a configuration; and a computation is an infinite sequence of configurations with transitions between successive configurations. A probabilistic VASS consists of a VASS along with a probability distribution over the transitions for each state. Qualitative properties such as state and configuration reachability have been widely studied for VASS. In this work we consider multi-dimensional long-run average objectives for VASS and probabilistic VASS. For a counter, the cost of a configuration is the value of the counter; and the long-run average value of a computation for the counter is the long-run average of the costs of the configurations in the computation. The multi-dimensional long-run average problem given a VASS and a threshold value for each counter, asks whether there is a computation such that for each counter the long-run average value for the counter does not exceed the respective threshold. For probabilistic VASS, instead of the existence of a computation, we consider whether the expected long-run average value for each counter does not exceed the respective threshold. Our main results are as follows: we show that the multi-dimensional long-run average problem (a) is NP-complete for integer-valued VASS; (b) is undecidable for natural-valued VASS (i.e., nonnegative counters); and (c) can be solved in polynomial time for probabilistic integer-valued VASS, and probabilistic natural-valued VASS when all computations are non-terminating.","lang":"eng"}],"alternative_title":["LIPIcs"],"type":"conference","file":[{"content_type":"application/pdf","file_size":601231,"creator":"dernst","file_name":"2020_LIPIcsCONCUR_Chatterjee.pdf","access_level":"open_access","date_created":"2020-10-05T14:04:25Z","date_updated":"2020-10-05T14:04:25Z","checksum":"5039752f644c4b72b9361d21a5e31baf","success":1,"relation":"main_file","file_id":"8610"}],"oa_version":"Published Version","status":"public","title":"Multi-dimensional long-run average problems for vector addition systems with states","ddc":["000"],"intvolume":" 171","_id":"8600","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","day":"06","has_accepted_license":"1","article_processing_charge":"No","scopus_import":"1","date_published":"2020-08-06T00:00:00Z","publication":"31st International Conference on Concurrency Theory","citation":{"ama":"Chatterjee K, Henzinger TA, Otop J. Multi-dimensional long-run average problems for vector addition systems with states. In: 31st International Conference on Concurrency Theory. Vol 171. Schloss Dagstuhl - Leibniz-Zentrum für Informatik; 2020. doi:10.4230/LIPIcs.CONCUR.2020.23","ieee":"K. Chatterjee, T. A. Henzinger, and J. Otop, “Multi-dimensional long-run average problems for vector addition systems with states,” in 31st International Conference on Concurrency Theory, Virtual, 2020, vol. 171.","apa":"Chatterjee, K., Henzinger, T. A., & Otop, J. (2020). Multi-dimensional long-run average problems for vector addition systems with states. In 31st International Conference on Concurrency Theory (Vol. 171). Virtual: Schloss Dagstuhl - Leibniz-Zentrum für Informatik. https://doi.org/10.4230/LIPIcs.CONCUR.2020.23","ista":"Chatterjee K, Henzinger TA, Otop J. 2020. Multi-dimensional long-run average problems for vector addition systems with states. 31st International Conference on Concurrency Theory. CONCUR: Conference on Concurrency Theory, LIPIcs, vol. 171, 23.","short":"K. Chatterjee, T.A. Henzinger, J. Otop, in:, 31st International Conference on Concurrency Theory, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2020.","mla":"Chatterjee, Krishnendu, et al. “Multi-Dimensional Long-Run Average Problems for Vector Addition Systems with States.” 31st International Conference on Concurrency Theory, vol. 171, 23, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2020, doi:10.4230/LIPIcs.CONCUR.2020.23.","chicago":"Chatterjee, Krishnendu, Thomas A Henzinger, and Jan Otop. “Multi-Dimensional Long-Run Average Problems for Vector Addition Systems with States.” In 31st International Conference on Concurrency Theory, Vol. 171. Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2020. https://doi.org/10.4230/LIPIcs.CONCUR.2020.23."}},{"oa":1,"tmp":{"legal_code_url":"https://creativecommons.org/licenses/by/3.0/legalcode","name":"Creative Commons Attribution 3.0 Unported (CC BY 3.0)","short":"CC BY (3.0)","image":"/images/cc_by.png"},"project":[{"call_identifier":"FWF","name":"The Wittgenstein Prize","_id":"25F42A32-B435-11E9-9278-68D0E5697425","grant_number":"Z211"}],"quality_controlled":"1","doi":"10.4230/LIPIcs.CONCUR.2020.2","conference":{"name":"CONCUR: Conference on Concurrency Theory","end_date":"2020-09-04","location":"Virtual","start_date":"2020-09-01"},"language":[{"iso":"eng"}],"publication_identifier":{"isbn":["9783959771603"],"issn":["18688969"]},"month":"08","year":"2020","acknowledgement":"We would like to thank all our collaborators Milad Aghajohari, Ventsislav Chonev, Rasmus Ibsen-Jensen, Ismäel Jecker, Petr Novotný, Josef Tkadlec, and Ðorđe Žikelić; we hope the collaboration was as fun and meaningful for you as it was for us.","publisher":"Schloss Dagstuhl - Leibniz-Zentrum für Informatik","department":[{"_id":"ToHe"}],"publication_status":"published","author":[{"full_name":"Avni, Guy","first_name":"Guy","last_name":"Avni","id":"463C8BC2-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0001-5588-8287"},{"full_name":"Henzinger, Thomas A","first_name":"Thomas A","last_name":"Henzinger","id":"40876CD8-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0002-2985-7724"}],"volume":171,"date_created":"2020-10-04T22:01:36Z","date_updated":"2021-01-12T08:20:13Z","article_number":"2","file_date_updated":"2020-10-05T14:13:19Z","citation":{"ista":"Avni G, Henzinger TA. 2020. A survey of bidding games on graphs. 31st International Conference on Concurrency Theory. CONCUR: Conference on Concurrency Theory, LIPIcs, vol. 171, 2.","ieee":"G. Avni and T. A. Henzinger, “A survey of bidding games on graphs,” in 31st International Conference on Concurrency Theory, Virtual, 2020, vol. 171.","apa":"Avni, G., & Henzinger, T. A. (2020). A survey of bidding games on graphs. In 31st International Conference on Concurrency Theory (Vol. 171). Virtual: Schloss Dagstuhl - Leibniz-Zentrum für Informatik. https://doi.org/10.4230/LIPIcs.CONCUR.2020.2","ama":"Avni G, Henzinger TA. A survey of bidding games on graphs. In: 31st International Conference on Concurrency Theory. Vol 171. Schloss Dagstuhl - Leibniz-Zentrum für Informatik; 2020. doi:10.4230/LIPIcs.CONCUR.2020.2","chicago":"Avni, Guy, and Thomas A Henzinger. “A Survey of Bidding Games on Graphs.” In 31st International Conference on Concurrency Theory, Vol. 171. Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2020. https://doi.org/10.4230/LIPIcs.CONCUR.2020.2.","mla":"Avni, Guy, and Thomas A. Henzinger. “A Survey of Bidding Games on Graphs.” 31st International Conference on Concurrency Theory, vol. 171, 2, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2020, doi:10.4230/LIPIcs.CONCUR.2020.2.","short":"G. Avni, T.A. Henzinger, in:, 31st International Conference on Concurrency Theory, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2020."},"publication":"31st International Conference on Concurrency Theory","date_published":"2020-08-06T00:00:00Z","scopus_import":"1","has_accepted_license":"1","article_processing_charge":"No","day":"06","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","_id":"8599","intvolume":" 171","status":"public","title":"A survey of bidding games on graphs","ddc":["000"],"oa_version":"Published Version","file":[{"relation":"main_file","file_id":"8611","date_updated":"2020-10-05T14:13:19Z","date_created":"2020-10-05T14:13:19Z","checksum":"8f33b098e73724e0ac817f764d8e1a2d","success":1,"file_name":"2020_LIPIcsCONCUR_Avni.pdf","access_level":"open_access","file_size":868510,"content_type":"application/pdf","creator":"dernst"}],"type":"conference","alternative_title":["LIPIcs"],"abstract":[{"text":"A graph game is a two-player zero-sum game in which the players move a token throughout a graph to produce an infinite path, which determines the winner or payoff of the game. In bidding games, both players have budgets, and in each turn, we hold an \"auction\" (bidding) to determine which player moves the token. In this survey, we consider several bidding mechanisms and study their effect on the properties of the game. Specifically, bidding games, and in particular bidding games of infinite duration, have an intriguing equivalence with random-turn games in which in each turn, the player who moves is chosen randomly. We show how minor changes in the bidding mechanism lead to unexpected differences in the equivalence with random-turn games.","lang":"eng"}]},{"file_date_updated":"2021-02-09T09:39:02Z","date_created":"2021-01-24T23:01:10Z","date_updated":"2021-02-09T09:39:59Z","author":[{"full_name":"Alamdari, Par Alizadeh","first_name":"Par Alizadeh","last_name":"Alamdari"},{"full_name":"Avni, Guy","last_name":"Avni","first_name":"Guy","orcid":"0000-0001-5588-8287","id":"463C8BC2-F248-11E8-B48F-1D18A9856A87"},{"full_name":"Henzinger, Thomas A","orcid":"0000-0002-2985-7724","id":"40876CD8-F248-11E8-B48F-1D18A9856A87","last_name":"Henzinger","first_name":"Thomas A"},{"full_name":"Lukina, Anna","first_name":"Anna","last_name":"Lukina","id":"CBA4D1A8-0FE8-11E9-BDE6-07BFE5697425"}],"publication_status":"published","department":[{"_id":"ToHe"}],"publisher":"TU Wien Academic Press","acknowledgement":"This research was supported in part by the Austrian Science Fund (FWF) under grant Z211-N23 (Wittgenstein Award).","year":"2020","month":"09","publication_identifier":{"isbn":["9783854480426"],"eissn":["2708-7824"]},"language":[{"iso":"eng"}],"conference":{"location":"Online Conference","start_date":"2020-09-21","end_date":"2020-09-24","name":" FMCAD: Formal Methods in Computer-Aided Design"},"doi":"10.34727/2020/isbn.978-3-85448-042-6_21","quality_controlled":"1","project":[{"name":"The Wittgenstein Prize","call_identifier":"FWF","_id":"25F42A32-B435-11E9-9278-68D0E5697425","grant_number":"Z211"}],"oa":1,"tmp":{"name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","short":"CC BY (4.0)","image":"/images/cc_by.png"},"abstract":[{"lang":"eng","text":"Machine learning and formal methods have complimentary benefits and drawbacks. In this work, we address the controller-design problem with a combination of techniques from both fields. The use of black-box neural networks in deep reinforcement learning (deep RL) poses a challenge for such a combination. Instead of reasoning formally about the output of deep RL, which we call the wizard, we extract from it a decision-tree based model, which we refer to as the magic book. Using the extracted model as an intermediary, we are able to handle problems that are infeasible for either deep RL or formal methods by themselves. First, we suggest, for the first time, a synthesis procedure that is based on a magic book. We synthesize a stand-alone correct-by-design controller that enjoys the favorable performance of RL. Second, we incorporate a magic book in a bounded model checking (BMC) procedure. BMC allows us to find numerous traces of the plant under the control of the wizard, which a user can use to increase the trustworthiness of the wizard and direct further training."}],"type":"conference","file":[{"file_id":"9109","relation":"main_file","success":1,"checksum":"d616d549a0ade78606b16f8a9540820f","date_created":"2021-02-09T09:39:02Z","date_updated":"2021-02-09T09:39:02Z","access_level":"open_access","file_name":"2020_FMCAD_Alamdari.pdf","creator":"dernst","content_type":"application/pdf","file_size":990999}],"oa_version":"Published Version","status":"public","ddc":["000"],"title":"Formal methods with a touch of magic","_id":"9040","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","day":"21","has_accepted_license":"1","article_processing_charge":"No","scopus_import":"1","date_published":"2020-09-21T00:00:00Z","page":"138-147","publication":"Proceedings of the 20th Conference on Formal Methods in Computer-Aided Design","citation":{"ama":"Alamdari PA, Avni G, Henzinger TA, Lukina A. Formal methods with a touch of magic. In: Proceedings of the 20th Conference on Formal Methods in Computer-Aided Design. TU Wien Academic Press; 2020:138-147. doi:10.34727/2020/isbn.978-3-85448-042-6_21","ieee":"P. A. Alamdari, G. Avni, T. A. Henzinger, and A. Lukina, “Formal methods with a touch of magic,” in Proceedings of the 20th Conference on Formal Methods in Computer-Aided Design, Online Conference, 2020, pp. 138–147.","apa":"Alamdari, P. A., Avni, G., Henzinger, T. A., & Lukina, A. (2020). Formal methods with a touch of magic. In Proceedings of the 20th Conference on Formal Methods in Computer-Aided Design (pp. 138–147). Online Conference: TU Wien Academic Press. https://doi.org/10.34727/2020/isbn.978-3-85448-042-6_21","ista":"Alamdari PA, Avni G, Henzinger TA, Lukina A. 2020. Formal methods with a touch of magic. Proceedings of the 20th Conference on Formal Methods in Computer-Aided Design. FMCAD: Formal Methods in Computer-Aided Design, 138–147.","short":"P.A. Alamdari, G. Avni, T.A. Henzinger, A. Lukina, in:, Proceedings of the 20th Conference on Formal Methods in Computer-Aided Design, TU Wien Academic Press, 2020, pp. 138–147.","mla":"Alamdari, Par Alizadeh, et al. “Formal Methods with a Touch of Magic.” Proceedings of the 20th Conference on Formal Methods in Computer-Aided Design, TU Wien Academic Press, 2020, pp. 138–47, doi:10.34727/2020/isbn.978-3-85448-042-6_21.","chicago":"Alamdari, Par Alizadeh, Guy Avni, Thomas A Henzinger, and Anna Lukina. “Formal Methods with a Touch of Magic.” In Proceedings of the 20th Conference on Formal Methods in Computer-Aided Design, 138–47. TU Wien Academic Press, 2020. https://doi.org/10.34727/2020/isbn.978-3-85448-042-6_21."}},{"conference":{"name":"NeurIPS: Conference on Neural Information Processing Systems","start_date":"2020-12-06","location":"Vancouver, Canada","end_date":"2020-12-12"},"language":[{"iso":"eng"}],"main_file_link":[{"open_access":"1","url":"https://proceedings.neurips.cc/paper/2020/hash/d1ff1ec86b62cd5f3903ff19c3a326b2-Abstract.html"}],"external_id":{"arxiv":["2004.14340"]},"oa":1,"quality_controlled":"1","project":[{"name":"Elastic Coordination for Scalable Machine Learning","call_identifier":"H2020","_id":"268A44D6-B435-11E9-9278-68D0E5697425","grant_number":"805223"}],"month":"12","publication_identifier":{"issn":["10495258"],"isbn":["9781713829546"]},"author":[{"first_name":"Sidak Pal","last_name":"Singh","id":"DD138E24-D89D-11E9-9DC0-DEF6E5697425","full_name":"Singh, Sidak Pal"},{"full_name":"Alistarh, Dan-Adrian","id":"4A899BFC-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0003-3650-940X","first_name":"Dan-Adrian","last_name":"Alistarh"}],"date_created":"2021-07-04T22:01:26Z","date_updated":"2023-02-23T14:03:06Z","volume":33,"year":"2020","acknowledgement":"This project has received funding from the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation programme (grant agreement No 805223 ScaleML). Also, we would like to thank Alexander Shevchenko, Alexandra Peste, and other members of the group for fruitful discussions.","publication_status":"published","publisher":"Curran Associates","department":[{"_id":"DaAl"},{"_id":"ToHe"}],"ec_funded":1,"date_published":"2020-12-06T00:00:00Z","publication":"Advances in Neural Information Processing Systems","citation":{"mla":"Singh, Sidak Pal, and Dan-Adrian Alistarh. “WoodFisher: Efficient Second-Order Approximation for Neural Network Compression.” Advances in Neural Information Processing Systems, vol. 33, Curran Associates, 2020, pp. 18098–109.","short":"S.P. Singh, D.-A. Alistarh, in:, Advances in Neural Information Processing Systems, Curran Associates, 2020, pp. 18098–18109.","chicago":"Singh, Sidak Pal, and Dan-Adrian Alistarh. “WoodFisher: Efficient Second-Order Approximation for Neural Network Compression.” In Advances in Neural Information Processing Systems, 33:18098–109. Curran Associates, 2020.","ama":"Singh SP, Alistarh D-A. WoodFisher: Efficient second-order approximation for neural network compression. In: Advances in Neural Information Processing Systems. Vol 33. Curran Associates; 2020:18098-18109.","ista":"Singh SP, Alistarh D-A. 2020. WoodFisher: Efficient second-order approximation for neural network compression. Advances in Neural Information Processing Systems. NeurIPS: Conference on Neural Information Processing Systems vol. 33, 18098–18109.","apa":"Singh, S. P., & Alistarh, D.-A. (2020). WoodFisher: Efficient second-order approximation for neural network compression. In Advances in Neural Information Processing Systems (Vol. 33, pp. 18098–18109). Vancouver, Canada: Curran Associates.","ieee":"S. P. Singh and D.-A. Alistarh, “WoodFisher: Efficient second-order approximation for neural network compression,” in Advances in Neural Information Processing Systems, Vancouver, Canada, 2020, vol. 33, pp. 18098–18109."},"page":"18098-18109","day":"06","article_processing_charge":"No","scopus_import":"1","oa_version":"Published Version","_id":"9632","user_id":"6785fbc1-c503-11eb-8a32-93094b40e1cf","status":"public","title":"WoodFisher: Efficient second-order approximation for neural network compression","intvolume":" 33","abstract":[{"text":"Second-order information, in the form of Hessian- or Inverse-Hessian-vector products, is a fundamental tool for solving optimization problems. Recently, there has been significant interest in utilizing this information in the context of deep\r\nneural networks; however, relatively little is known about the quality of existing approximations in this context. Our work examines this question, identifies issues with existing approaches, and proposes a method called WoodFisher to compute a faithful and efficient estimate of the inverse Hessian. Our main application is to neural network compression, where we build on the classic Optimal Brain Damage/Surgeon framework. We demonstrate that WoodFisher significantly outperforms popular state-of-the-art methods for oneshot pruning. Further, even when iterative, gradual pruning is allowed, our method results in a gain in test accuracy over the state-of-the-art approaches, for standard image classification datasets such as ImageNet ILSVRC. We examine how our method can be extended to take into account first-order information, as well as\r\nillustrate its ability to automatically set layer-wise pruning thresholds and perform compression in the limited-data regime. The code is available at the following link, https://github.com/IST-DASLab/WoodFisher.","lang":"eng"}],"type":"conference"},{"_id":"9103","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","status":"public","title":"Lagrangian reachtubes: The next generation","intvolume":" 2020","oa_version":"Preprint","type":"conference","abstract":[{"text":"We introduce LRT-NG, a set of techniques and an associated toolset that computes a reachtube (an over-approximation of the set of reachable states over a given time horizon) of a nonlinear dynamical system. LRT-NG significantly advances the state-of-the-art Langrangian Reachability and its associated tool LRT. From a theoretical perspective, LRT-NG is superior to LRT in three ways. First, it uses for the first time an analytically computed metric for the propagated ball which is proven to minimize the ball’s volume. We emphasize that the metric computation is the centerpiece of all bloating-based techniques. Secondly, it computes the next reachset as the intersection of two balls: one based on the Cartesian metric and the other on the new metric. While the two metrics were previously considered opposing approaches, their joint use considerably tightens the reachtubes. Thirdly, it avoids the \"wrapping effect\" associated with the validated integration of the center of the reachset, by optimally absorbing the interval approximation in the radius of the next ball. From a tool-development perspective, LRT-NG is superior to LRT in two ways. First, it is a standalone tool that no longer relies on CAPD. This required the implementation of the Lohner method and a Runge-Kutta time-propagation method. Secondly, it has an improved interface, allowing the input model and initial conditions to be provided as external input files. Our experiments on a comprehensive set of benchmarks, including two Neural ODEs, demonstrates LRT-NG’s superior performance compared to LRT, CAPD, and Flow*.","lang":"eng"}],"publication":"Proceedings of the 59th IEEE Conference on Decision and Control","citation":{"chicago":"Gruenbacher, Sophie, Jacek Cyranka, Mathias Lechner, Md Ariful Islam, Scott A. Smolka, and Radu Grosu. “Lagrangian Reachtubes: The next Generation.” In Proceedings of the 59th IEEE Conference on Decision and Control, 2020:1556–63. IEEE, 2020. https://doi.org/10.1109/CDC42340.2020.9304042.","mla":"Gruenbacher, Sophie, et al. “Lagrangian Reachtubes: The next Generation.” Proceedings of the 59th IEEE Conference on Decision and Control, vol. 2020, IEEE, 2020, pp. 1556–63, doi:10.1109/CDC42340.2020.9304042.","short":"S. Gruenbacher, J. Cyranka, M. Lechner, M.A. Islam, S.A. Smolka, R. Grosu, in:, Proceedings of the 59th IEEE Conference on Decision and Control, IEEE, 2020, pp. 1556–1563.","ista":"Gruenbacher S, Cyranka J, Lechner M, Islam MA, Smolka SA, Grosu R. 2020. Lagrangian reachtubes: The next generation. Proceedings of the 59th IEEE Conference on Decision and Control. CDC: Conference on Decision and Control vol. 2020, 1556–1563.","ieee":"S. Gruenbacher, J. Cyranka, M. Lechner, M. A. Islam, S. A. Smolka, and R. Grosu, “Lagrangian reachtubes: The next generation,” in Proceedings of the 59th IEEE Conference on Decision and Control, Jeju Islang, Korea (South), 2020, vol. 2020, pp. 1556–1563.","apa":"Gruenbacher, S., Cyranka, J., Lechner, M., Islam, M. A., Smolka, S. A., & Grosu, R. (2020). Lagrangian reachtubes: The next generation. In Proceedings of the 59th IEEE Conference on Decision and Control (Vol. 2020, pp. 1556–1563). Jeju Islang, Korea (South): IEEE. https://doi.org/10.1109/CDC42340.2020.9304042","ama":"Gruenbacher S, Cyranka J, Lechner M, Islam MA, Smolka SA, Grosu R. Lagrangian reachtubes: The next generation. In: Proceedings of the 59th IEEE Conference on Decision and Control. Vol 2020. IEEE; 2020:1556-1563. doi:10.1109/CDC42340.2020.9304042"},"page":"1556-1563","date_published":"2020-12-14T00:00:00Z","scopus_import":"1","day":"14","article_processing_charge":"No","acknowledgement":"The authors would like to thank Ramin Hasani and Guillaume Berger for intellectual discussions about the research which lead to the generation of new ideas. ML was supported in part by the Austrian Science Fund (FWF) under grant Z211-N23 (Wittgenstein Award). Smolka’s research was supported by NSF grants CPS-1446832 and CCF-1918225. Gruenbacher is funded by FWF project W1255-N23. JC was partially supported by NAWA Polish Returns grant\r\nPPN/PPO/2018/1/00029.\r\n","year":"2020","publication_status":"published","publisher":"IEEE","department":[{"_id":"ToHe"}],"author":[{"first_name":"Sophie","last_name":"Gruenbacher","full_name":"Gruenbacher, Sophie"},{"last_name":"Cyranka","first_name":"Jacek","full_name":"Cyranka, Jacek"},{"full_name":"Lechner, Mathias","id":"3DC22916-F248-11E8-B48F-1D18A9856A87","last_name":"Lechner","first_name":"Mathias"},{"full_name":"Islam, Md Ariful","first_name":"Md Ariful","last_name":"Islam"},{"full_name":"Smolka, Scott A.","last_name":"Smolka","first_name":"Scott A."},{"full_name":"Grosu, Radu","first_name":"Radu","last_name":"Grosu"}],"date_updated":"2021-02-09T09:20:58Z","date_created":"2021-02-07T23:01:14Z","volume":2020,"main_file_link":[{"url":"https://arxiv.org/abs/2012.07458","open_access":"1"}],"external_id":{"arxiv":["2012.07458"]},"oa":1,"quality_controlled":"1","project":[{"call_identifier":"FWF","name":"The Wittgenstein Prize","_id":"25F42A32-B435-11E9-9278-68D0E5697425","grant_number":"Z211"}],"conference":{"name":"CDC: Conference on Decision and Control","location":"Jeju Islang, Korea (South)","start_date":"2020-12-14","end_date":"2020-12-18"},"doi":"10.1109/CDC42340.2020.9304042","language":[{"iso":"eng"}],"month":"12","publication_identifier":{"isbn":["9781728174471"],"issn":["07431546"]}},{"publication":"8th International Conference on Learning Representations","citation":{"chicago":"Lechner, Mathias. “Learning Representations for Binary-Classification without Backpropagation.” In 8th International Conference on Learning Representations. ICLR, 2020.","mla":"Lechner, Mathias. “Learning Representations for Binary-Classification without Backpropagation.” 8th International Conference on Learning Representations, ICLR, 2020.","short":"M. Lechner, in:, 8th International Conference on Learning Representations, ICLR, 2020.","ista":"Lechner M. 2020. Learning representations for binary-classification without backpropagation. 8th International Conference on Learning Representations. ICLR: International Conference on Learning Representations.","apa":"Lechner, M. (2020). Learning representations for binary-classification without backpropagation. In 8th International Conference on Learning Representations. Virtual ; Addis Ababa, Ethiopia: ICLR.","ieee":"M. Lechner, “Learning representations for binary-classification without backpropagation,” in 8th International Conference on Learning Representations, Virtual ; Addis Ababa, Ethiopia, 2020.","ama":"Lechner M. Learning representations for binary-classification without backpropagation. In: 8th International Conference on Learning Representations. ICLR; 2020."},"date_published":"2020-03-11T00:00:00Z","scopus_import":"1","day":"11","article_processing_charge":"No","has_accepted_license":"1","ddc":["000"],"title":"Learning representations for binary-classification without backpropagation","status":"public","_id":"10672","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","file":[{"file_name":"iclr_2020.pdf","access_level":"open_access","file_size":249431,"content_type":"application/pdf","creator":"mlechner","relation":"main_file","file_id":"10677","date_updated":"2022-01-26T07:35:17Z","date_created":"2022-01-26T07:35:17Z","checksum":"ea13d42dd4541ddb239b6a75821fd6c9","success":1}],"oa_version":"Published Version","type":"conference","abstract":[{"text":"The family of feedback alignment (FA) algorithms aims to provide a more biologically motivated alternative to backpropagation (BP), by substituting the computations that are unrealistic to be implemented in physical brains. While FA algorithms have been shown to work well in practice, there is a lack of rigorous theory proofing their learning capabilities. Here we introduce the first feedback alignment algorithm with provable learning guarantees. In contrast to existing work, we do not require any assumption about the size or depth of the network except that it has a single output neuron, i.e., such as for binary classification tasks. We show that our FA algorithm can deliver its theoretical promises in practice, surpassing the learning performance of existing FA methods and matching backpropagation in binary classification tasks. Finally, we demonstrate the limits of our FA variant when the number of output neurons grows beyond a certain quantity.","lang":"eng"}],"quality_controlled":"1","project":[{"call_identifier":"FWF","name":"The Wittgenstein Prize","grant_number":"Z211","_id":"25F42A32-B435-11E9-9278-68D0E5697425"}],"tmp":{"name":"Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported (CC BY-NC-ND 3.0)","legal_code_url":"https://creativecommons.org/licenses/by-nc-nd/3.0/legalcode","short":"CC BY-NC-ND (3.0)","image":"/images/cc_by_nc_nd.png"},"oa":1,"main_file_link":[{"open_access":"1","url":"https://openreview.net/forum?id=Bke61krFvS"}],"language":[{"iso":"eng"}],"conference":{"end_date":"2020-05-01","start_date":"2020-04-26","location":"Virtual ; Addis Ababa, Ethiopia","name":"ICLR: International Conference on Learning Representations"},"month":"03","publication_status":"published","department":[{"_id":"GradSch"},{"_id":"ToHe"}],"publisher":"ICLR","year":"2020","acknowledgement":"This research was supported in part by the Austrian Science Fund (FWF) under grant Z211-N23\r\n(Wittgenstein Award).\r\n","date_created":"2022-01-25T15:50:00Z","date_updated":"2023-04-03T07:33:40Z","author":[{"first_name":"Mathias","last_name":"Lechner","id":"3DC22916-F248-11E8-B48F-1D18A9856A87","full_name":"Lechner, Mathias"}],"file_date_updated":"2022-01-26T07:35:17Z"},{"language":[{"iso":"eng"}],"conference":{"name":"TACAS: Tools and Algorithms for the Construction and Analysis of Systems","start_date":"2020-04-25","location":"Dublin, Ireland","end_date":"2020-04-30"},"doi":"10.1007/978-3-030-45237-7_5","quality_controlled":"1","project":[{"name":"Rigorous Systems Engineering","call_identifier":"FWF","grant_number":"S 11407_N23","_id":"25832EC2-B435-11E9-9278-68D0E5697425"},{"grant_number":"Z211","_id":"25F42A32-B435-11E9-9278-68D0E5697425","name":"The Wittgenstein Prize","call_identifier":"FWF"}],"tmp":{"name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","short":"CC BY (4.0)","image":"/images/cc_by.png"},"oa":1,"month":"04","publication_identifier":{"eissn":["16113349"],"isbn":["9783030452360"],"issn":["03029743"]},"date_created":"2020-05-10T22:00:49Z","date_updated":"2023-06-23T07:01:11Z","volume":12079,"author":[{"full_name":"Giacobbe, Mirco","last_name":"Giacobbe","first_name":"Mirco","orcid":"0000-0001-8180-0904","id":"3444EA5E-F248-11E8-B48F-1D18A9856A87"},{"full_name":"Henzinger, Thomas A","last_name":"Henzinger","first_name":"Thomas A","orcid":"0000-0002-2985-7724","id":"40876CD8-F248-11E8-B48F-1D18A9856A87"},{"id":"3DC22916-F248-11E8-B48F-1D18A9856A87","first_name":"Mathias","last_name":"Lechner","full_name":"Lechner, Mathias"}],"related_material":{"record":[{"id":"11362","status":"public","relation":"dissertation_contains"}]},"publication_status":"published","department":[{"_id":"ToHe"}],"publisher":"Springer Nature","year":"2020","file_date_updated":"2020-07-14T12:48:03Z","date_published":"2020-04-17T00:00:00Z","page":"79-97","publication":"International Conference on Tools and Algorithms for the Construction and Analysis of Systems","citation":{"ieee":"M. Giacobbe, T. A. Henzinger, and M. Lechner, “How many bits does it take to quantize your neural network?,” in International Conference on Tools and Algorithms for the Construction and Analysis of Systems, Dublin, Ireland, 2020, vol. 12079, pp. 79–97.","apa":"Giacobbe, M., Henzinger, T. A., & Lechner, M. (2020). How many bits does it take to quantize your neural network? In International Conference on Tools and Algorithms for the Construction and Analysis of Systems (Vol. 12079, pp. 79–97). Dublin, Ireland: Springer Nature. https://doi.org/10.1007/978-3-030-45237-7_5","ista":"Giacobbe M, Henzinger TA, Lechner M. 2020. How many bits does it take to quantize your neural network? International Conference on Tools and Algorithms for the Construction and Analysis of Systems. TACAS: Tools and Algorithms for the Construction and Analysis of Systems, LNCS, vol. 12079, 79–97.","ama":"Giacobbe M, Henzinger TA, Lechner M. How many bits does it take to quantize your neural network? In: International Conference on Tools and Algorithms for the Construction and Analysis of Systems. Vol 12079. Springer Nature; 2020:79-97. doi:10.1007/978-3-030-45237-7_5","chicago":"Giacobbe, Mirco, Thomas A Henzinger, and Mathias Lechner. “How Many Bits Does It Take to Quantize Your Neural Network?” In International Conference on Tools and Algorithms for the Construction and Analysis of Systems, 12079:79–97. Springer Nature, 2020. https://doi.org/10.1007/978-3-030-45237-7_5.","short":"M. Giacobbe, T.A. Henzinger, M. Lechner, in:, International Conference on Tools and Algorithms for the Construction and Analysis of Systems, Springer Nature, 2020, pp. 79–97.","mla":"Giacobbe, Mirco, et al. “How Many Bits Does It Take to Quantize Your Neural Network?” International Conference on Tools and Algorithms for the Construction and Analysis of Systems, vol. 12079, Springer Nature, 2020, pp. 79–97, doi:10.1007/978-3-030-45237-7_5."},"day":"17","article_processing_charge":"No","has_accepted_license":"1","scopus_import":1,"oa_version":"Published Version","file":[{"date_created":"2020-05-26T12:48:15Z","date_updated":"2020-07-14T12:48:03Z","checksum":"f19905a42891fe5ce93d69143fa3f6fb","relation":"main_file","file_id":"7893","content_type":"application/pdf","file_size":2744030,"creator":"dernst","file_name":"2020_TACAS_Giacobbe.pdf","access_level":"open_access"}],"ddc":["000"],"title":"How many bits does it take to quantize your neural network?","status":"public","intvolume":" 12079","_id":"7808","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","abstract":[{"lang":"eng","text":"Quantization converts neural networks into low-bit fixed-point computations which can be carried out by efficient integer-only hardware, and is standard practice for the deployment of neural networks on real-time embedded devices. However, like their real-numbered counterpart, quantized networks are not immune to malicious misclassification caused by adversarial attacks. We investigate how quantization affects a network’s robustness to adversarial attacks, which is a formal verification question. We show that neither robustness nor non-robustness are monotonic with changing the number of bits for the representation and, also, neither are preserved by quantization from a real-numbered network. For this reason, we introduce a verification method for quantized neural networks which, using SMT solving over bit-vectors, accounts for their exact, bit-precise semantics. We built a tool and analyzed the effect of quantization on a classifier for the MNIST dataset. We demonstrate that, compared to our method, existing methods for the analysis of real-numbered networks often derive false conclusions about their quantizations, both when determining robustness and when detecting attacks, and that existing methods for quantized networks often miss attacks. Furthermore, we applied our method beyond robustness, showing how the number of bits in quantization enlarges the gender bias of a predictor for students’ grades."}],"alternative_title":["LNCS"],"type":"conference"},{"related_material":{"record":[{"relation":"earlier_version","status":"public","id":"1341"}]},"author":[{"full_name":"Avni, Guy","id":"463C8BC2-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0001-5588-8287","first_name":"Guy","last_name":"Avni"},{"full_name":"Henzinger, Thomas A","id":"40876CD8-F248-11E8-B48F-1D18A9856A87","orcid":"0000−0002−2985−7724","first_name":"Thomas A","last_name":"Henzinger"},{"first_name":"Orna","last_name":"Kupferman","full_name":"Kupferman, Orna"}],"volume":807,"date_created":"2019-08-04T21:59:20Z","date_updated":"2023-08-17T13:52:49Z","year":"2020","department":[{"_id":"ToHe"}],"publisher":"Elsevier","publication_status":"published","file_date_updated":"2020-10-09T06:31:22Z","doi":"10.1016/j.tcs.2019.06.031","language":[{"iso":"eng"}],"oa":1,"external_id":{"isi":["000512219400004"]},"project":[{"grant_number":"S11402-N23","_id":"25F2ACDE-B435-11E9-9278-68D0E5697425","call_identifier":"FWF","name":"Rigorous Systems Engineering"},{"call_identifier":"FWF","name":"The Wittgenstein Prize","grant_number":"Z211","_id":"25F42A32-B435-11E9-9278-68D0E5697425"},{"_id":"264B3912-B435-11E9-9278-68D0E5697425","grant_number":"M02369","call_identifier":"FWF","name":"Formal Methods meets Algorithmic Game Theory"}],"isi":1,"quality_controlled":"1","publication_identifier":{"issn":["03043975"]},"month":"02","oa_version":"Submitted Version","file":[{"date_created":"2020-10-09T06:31:22Z","date_updated":"2020-10-09T06:31:22Z","success":1,"checksum":"e86635417f45eb2cd75778f91382f737","file_id":"8639","relation":"main_file","creator":"dernst","content_type":"application/pdf","file_size":1413001,"file_name":"2020_TheoreticalCS_Avni.pdf","access_level":"open_access"}],"_id":"6761","user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","intvolume":" 807","status":"public","ddc":["000"],"title":"Dynamic resource allocation games","abstract":[{"text":"In resource allocation games, selfish players share resources that are needed in order to fulfill their objectives. The cost of using a resource depends on the load on it. In the traditional setting, the players make their choices concurrently and in one-shot. That is, a strategy for a player is a subset of the resources. We introduce and study dynamic resource allocation games. In this setting, the game proceeds in phases. In each phase each player chooses one resource. A scheduler dictates the order in which the players proceed in a phase, possibly scheduling several players to proceed concurrently. The game ends when each player has collected a set of resources that fulfills his objective. The cost for each player then depends on this set as well as on the load on the resources in it – we consider both congestion and cost-sharing games. We argue that the dynamic setting is the suitable setting for many applications in practice. We study the stability of dynamic resource allocation games, where the appropriate notion of stability is that of subgame perfect equilibrium, study the inefficiency incurred due to selfish behavior, and also study problems that are particular to the dynamic setting, like constraints on the order in which resources can be chosen or the problem of finding a scheduler that achieves stability.","lang":"eng"}],"type":"journal_article","date_published":"2020-02-06T00:00:00Z","citation":{"ama":"Avni G, Henzinger TA, Kupferman O. Dynamic resource allocation games. Theoretical Computer Science. 2020;807:42-55. doi:10.1016/j.tcs.2019.06.031","apa":"Avni, G., Henzinger, T. A., & Kupferman, O. (2020). Dynamic resource allocation games. Theoretical Computer Science. Elsevier. https://doi.org/10.1016/j.tcs.2019.06.031","ieee":"G. Avni, T. A. Henzinger, and O. Kupferman, “Dynamic resource allocation games,” Theoretical Computer Science, vol. 807. Elsevier, pp. 42–55, 2020.","ista":"Avni G, Henzinger TA, Kupferman O. 2020. Dynamic resource allocation games. Theoretical Computer Science. 807, 42–55.","short":"G. Avni, T.A. Henzinger, O. Kupferman, Theoretical Computer Science 807 (2020) 42–55.","mla":"Avni, Guy, et al. “Dynamic Resource Allocation Games.” Theoretical Computer Science, vol. 807, Elsevier, 2020, pp. 42–55, doi:10.1016/j.tcs.2019.06.031.","chicago":"Avni, Guy, Thomas A Henzinger, and Orna Kupferman. “Dynamic Resource Allocation Games.” Theoretical Computer Science. Elsevier, 2020. https://doi.org/10.1016/j.tcs.2019.06.031."},"publication":"Theoretical Computer Science","page":"42-55","article_type":"original","has_accepted_license":"1","article_processing_charge":"No","day":"06","scopus_import":"1"},{"license":"https://creativecommons.org/licenses/by-nc/4.0/","ec_funded":1,"file_date_updated":"2020-09-21T07:12:32Z","volume":325,"date_created":"2020-02-21T16:44:03Z","date_updated":"2023-08-18T06:38:16Z","author":[{"first_name":"Thomas A","last_name":"Henzinger","id":"40876CD8-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0002-2985-7724","full_name":"Henzinger, Thomas A"},{"full_name":"Lukina, Anna","id":"CBA4D1A8-0FE8-11E9-BDE6-07BFE5697425","first_name":"Anna","last_name":"Lukina"},{"id":"3A2F4DCE-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0003-3658-1065","first_name":"Christian","last_name":"Schilling","full_name":"Schilling, Christian"}],"department":[{"_id":"ToHe"}],"publisher":"IOS Press","publication_status":"published","acknowledgement":"We thank Christoph Lampert and Nikolaus Mayer for fruitful discussions. This research was supported in part by the Austrian Science Fund (FWF) under grants S11402-N23 (RiSE/SHiNE) and Z211-N23 (Wittgenstein Award) and the European Union’s Horizon 2020 research and innovation programme under the Marie SkłodowskaCurie grant agreement No. 754411.","year":"2020","month":"02","language":[{"iso":"eng"}],"doi":"10.3233/FAIA200375","conference":{"end_date":"2020-09-08","start_date":"2020-08-29","location":"Santiago de Compostela, Spain","name":"ECAI: European Conference on Artificial Intelligence"},"project":[{"call_identifier":"H2020","name":"ISTplus - Postdoctoral Fellowships","_id":"260C2330-B435-11E9-9278-68D0E5697425","grant_number":"754411"},{"name":"Rigorous Systems Engineering","call_identifier":"FWF","_id":"25832EC2-B435-11E9-9278-68D0E5697425","grant_number":"S 11407_N23"},{"grant_number":"Z211","_id":"25F42A32-B435-11E9-9278-68D0E5697425","name":"The Wittgenstein Prize","call_identifier":"FWF"}],"quality_controlled":"1","isi":1,"oa":1,"tmp":{"name":"Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)","legal_code_url":"https://creativecommons.org/licenses/by-nc/4.0/legalcode","image":"/images/cc_by_nc.png","short":"CC BY-NC (4.0)"},"external_id":{"arxiv":["1911.09032"],"isi":["000650971303002"]},"abstract":[{"text":"Neural networks have demonstrated unmatched performance in a range of classification tasks. Despite numerous efforts of the research community, novelty detection remains one of the significant limitations of neural networks. The ability to identify previously unseen inputs as novel is crucial for our understanding of the decisions made by neural networks. At runtime, inputs not falling into any of the categories learned during training cannot be classified correctly by the neural network. Existing approaches treat the neural network as a black box and try to detect novel inputs based on the confidence of the output predictions. However, neural networks are not trained to reduce their confidence for novel inputs, which limits the effectiveness of these approaches. We propose a framework to monitor a neural network by observing the hidden layers. We employ a common abstraction from program analysis - boxes - to identify novel behaviors in the monitored layers, i.e., inputs that cause behaviors outside the box. For each neuron, the boxes range over the values seen in training. The framework is efficient and flexible to achieve a desired trade-off between raising false warnings and detecting novel inputs. We illustrate the performance and the robustness to variability in the unknown classes on popular image-classification benchmarks.","lang":"eng"}],"alternative_title":["Frontiers in Artificial Intelligence and Applications"],"type":"conference","file":[{"date_updated":"2020-09-21T07:12:32Z","date_created":"2020-09-21T07:12:32Z","success":1,"checksum":"80642fa0b6cd7da95dcd87d63789ad5e","file_id":"8540","relation":"main_file","creator":"dernst","file_size":1692214,"content_type":"application/pdf","file_name":"2020_ECAI_Henzinger.pdf","access_level":"open_access"}],"oa_version":"Published Version","intvolume":" 325","ddc":["000"],"status":"public","title":"Outside the box: Abstraction-based monitoring of neural networks","user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","_id":"7505","article_processing_charge":"No","has_accepted_license":"1","day":"24","date_published":"2020-02-24T00:00:00Z","page":"2433-2440","citation":{"mla":"Henzinger, Thomas A., et al. “Outside the Box: Abstraction-Based Monitoring of Neural Networks.” 24th European Conference on Artificial Intelligence, vol. 325, IOS Press, 2020, pp. 2433–40, doi:10.3233/FAIA200375.","short":"T.A. Henzinger, A. Lukina, C. Schilling, in:, 24th European Conference on Artificial Intelligence, IOS Press, 2020, pp. 2433–2440.","chicago":"Henzinger, Thomas A, Anna Lukina, and Christian Schilling. “Outside the Box: Abstraction-Based Monitoring of Neural Networks.” In 24th European Conference on Artificial Intelligence, 325:2433–40. IOS Press, 2020. https://doi.org/10.3233/FAIA200375.","ama":"Henzinger TA, Lukina A, Schilling C. Outside the box: Abstraction-based monitoring of neural networks. In: 24th European Conference on Artificial Intelligence. Vol 325. IOS Press; 2020:2433-2440. doi:10.3233/FAIA200375","ista":"Henzinger TA, Lukina A, Schilling C. 2020. Outside the box: Abstraction-based monitoring of neural networks. 24th European Conference on Artificial Intelligence. ECAI: European Conference on Artificial Intelligence, Frontiers in Artificial Intelligence and Applications, vol. 325, 2433–2440.","apa":"Henzinger, T. A., Lukina, A., & Schilling, C. (2020). Outside the box: Abstraction-based monitoring of neural networks. In 24th European Conference on Artificial Intelligence (Vol. 325, pp. 2433–2440). Santiago de Compostela, Spain: IOS Press. https://doi.org/10.3233/FAIA200375","ieee":"T. A. Henzinger, A. Lukina, and C. Schilling, “Outside the box: Abstraction-based monitoring of neural networks,” in 24th European Conference on Artificial Intelligence, Santiago de Compostela, Spain, 2020, vol. 325, pp. 2433–2440."},"publication":"24th European Conference on Artificial Intelligence"},{"oa_version":"Published Version","intvolume":" 12166","status":"public","title":"An SMT theory of fixed-point arithmetic","_id":"8194","user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","abstract":[{"lang":"eng","text":"Fixed-point arithmetic is a popular alternative to floating-point arithmetic on embedded systems. Existing work on the verification of fixed-point programs relies on custom formalizations of fixed-point arithmetic, which makes it hard to compare the described techniques or reuse the implementations. In this paper, we address this issue by proposing and formalizing an SMT theory of fixed-point arithmetic. We present an intuitive yet comprehensive syntax of the fixed-point theory, and provide formal semantics for it based on rational arithmetic. We also describe two decision procedures for this theory: one based on the theory of bit-vectors and the other on the theory of reals. We implement the two decision procedures, and evaluate our implementations using existing mature SMT solvers on a benchmark suite we created. Finally, we perform a case study of using the theory we propose to verify properties of quantized neural networks."}],"alternative_title":["LNCS"],"type":"conference","date_published":"2020-06-24T00:00:00Z","page":"13-31","citation":{"ista":"Baranowski M, He S, Lechner M, Nguyen TS, Rakamarić Z. 2020. An SMT theory of fixed-point arithmetic. Automated Reasoning. IJCAR: International Joint Conference on Automated Reasoning, LNCS, vol. 12166, 13–31.","apa":"Baranowski, M., He, S., Lechner, M., Nguyen, T. S., & Rakamarić, Z. (2020). An SMT theory of fixed-point arithmetic. In Automated Reasoning (Vol. 12166, pp. 13–31). Paris, France: Springer Nature. https://doi.org/10.1007/978-3-030-51074-9_2","ieee":"M. Baranowski, S. He, M. Lechner, T. S. Nguyen, and Z. Rakamarić, “An SMT theory of fixed-point arithmetic,” in Automated Reasoning, Paris, France, 2020, vol. 12166, pp. 13–31.","ama":"Baranowski M, He S, Lechner M, Nguyen TS, Rakamarić Z. An SMT theory of fixed-point arithmetic. In: Automated Reasoning. Vol 12166. Springer Nature; 2020:13-31. doi:10.1007/978-3-030-51074-9_2","chicago":"Baranowski, Marek, Shaobo He, Mathias Lechner, Thanh Son Nguyen, and Zvonimir Rakamarić. “An SMT Theory of Fixed-Point Arithmetic.” In Automated Reasoning, 12166:13–31. Springer Nature, 2020. https://doi.org/10.1007/978-3-030-51074-9_2.","mla":"Baranowski, Marek, et al. “An SMT Theory of Fixed-Point Arithmetic.” Automated Reasoning, vol. 12166, Springer Nature, 2020, pp. 13–31, doi:10.1007/978-3-030-51074-9_2.","short":"M. Baranowski, S. He, M. Lechner, T.S. Nguyen, Z. Rakamarić, in:, Automated Reasoning, Springer Nature, 2020, pp. 13–31."},"publication":"Automated Reasoning","article_processing_charge":"No","day":"24","scopus_import":"1","volume":12166,"date_created":"2020-08-02T22:00:59Z","date_updated":"2023-08-22T08:27:25Z","author":[{"first_name":"Marek","last_name":"Baranowski","full_name":"Baranowski, Marek"},{"full_name":"He, Shaobo","first_name":"Shaobo","last_name":"He"},{"id":"3DC22916-F248-11E8-B48F-1D18A9856A87","first_name":"Mathias","last_name":"Lechner","full_name":"Lechner, Mathias"},{"first_name":"Thanh Son","last_name":"Nguyen","full_name":"Nguyen, Thanh Son"},{"last_name":"Rakamarić","first_name":"Zvonimir","full_name":"Rakamarić, Zvonimir"}],"department":[{"_id":"ToHe"}],"publisher":"Springer Nature","publication_status":"published","year":"2020","language":[{"iso":"eng"}],"doi":"10.1007/978-3-030-51074-9_2","conference":{"name":"IJCAR: International Joint Conference on Automated Reasoning","start_date":"2020-07-01","location":"Paris, France","end_date":"2020-07-04"},"project":[{"grant_number":"Z211","_id":"25F42A32-B435-11E9-9278-68D0E5697425","call_identifier":"FWF","name":"The Wittgenstein Prize"}],"isi":1,"quality_controlled":"1","oa":1,"main_file_link":[{"open_access":"1","url":"https://doi.org/10.1007/978-3-030-51074-9_2"}],"external_id":{"isi":["000884318000002"]},"publication_identifier":{"issn":["03029743"],"isbn":["9783030510732"],"eissn":["16113349"]},"month":"06"},{"citation":{"ieee":"M. Lechner, R. Hasani, A. Amini, T. A. Henzinger, D. Rus, and R. Grosu, “Neural circuit policies enabling auditable autonomy,” Nature Machine Intelligence, vol. 2. Springer Nature, pp. 642–652, 2020.","apa":"Lechner, M., Hasani, R., Amini, A., Henzinger, T. A., Rus, D., & Grosu, R. (2020). Neural circuit policies enabling auditable autonomy. Nature Machine Intelligence. Springer Nature. https://doi.org/10.1038/s42256-020-00237-3","ista":"Lechner M, Hasani R, Amini A, Henzinger TA, Rus D, Grosu R. 2020. Neural circuit policies enabling auditable autonomy. Nature Machine Intelligence. 2, 642–652.","ama":"Lechner M, Hasani R, Amini A, Henzinger TA, Rus D, Grosu R. Neural circuit policies enabling auditable autonomy. Nature Machine Intelligence. 2020;2:642-652. doi:10.1038/s42256-020-00237-3","chicago":"Lechner, Mathias, Ramin Hasani, Alexander Amini, Thomas A Henzinger, Daniela Rus, and Radu Grosu. “Neural Circuit Policies Enabling Auditable Autonomy.” Nature Machine Intelligence. Springer Nature, 2020. https://doi.org/10.1038/s42256-020-00237-3.","short":"M. Lechner, R. Hasani, A. Amini, T.A. Henzinger, D. Rus, R. Grosu, Nature Machine Intelligence 2 (2020) 642–652.","mla":"Lechner, Mathias, et al. “Neural Circuit Policies Enabling Auditable Autonomy.” Nature Machine Intelligence, vol. 2, Springer Nature, 2020, pp. 642–52, doi:10.1038/s42256-020-00237-3."},"publication":"Nature Machine Intelligence","page":"642-652","article_type":"original","date_published":"2020-10-01T00:00:00Z","scopus_import":"1","article_processing_charge":"No","day":"01","user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","_id":"8679","intvolume":" 2","title":"Neural circuit policies enabling auditable autonomy","status":"public","oa_version":"None","type":"journal_article","abstract":[{"text":"A central goal of artificial intelligence in high-stakes decision-making applications is to design a single algorithm that simultaneously expresses generalizability by learning coherent representations of their world and interpretable explanations of its dynamics. Here, we combine brain-inspired neural computation principles and scalable deep learning architectures to design compact neural controllers for task-specific compartments of a full-stack autonomous vehicle control system. We discover that a single algorithm with 19 control neurons, connecting 32 encapsulated input features to outputs by 253 synapses, learns to map high-dimensional inputs into steering commands. This system shows superior generalizability, interpretability and robustness compared with orders-of-magnitude larger black-box learning systems. The obtained neural agents enable high-fidelity autonomy for task-specific parts of a complex autonomous system.","lang":"eng"}],"external_id":{"isi":["000583337200011"]},"project":[{"grant_number":"Z211","_id":"25F42A32-B435-11E9-9278-68D0E5697425","name":"The Wittgenstein Prize","call_identifier":"FWF"}],"quality_controlled":"1","isi":1,"doi":"10.1038/s42256-020-00237-3","language":[{"iso":"eng"}],"publication_identifier":{"eissn":["2522-5839"]},"month":"10","year":"2020","publisher":"Springer Nature","department":[{"_id":"ToHe"}],"publication_status":"published","related_material":{"link":[{"relation":"press_release","description":"News on IST Homepage","url":"https://ist.ac.at/en/news/new-deep-learning-models/"}]},"author":[{"id":"3DC22916-F248-11E8-B48F-1D18A9856A87","last_name":"Lechner","first_name":"Mathias","full_name":"Lechner, Mathias"},{"full_name":"Hasani, Ramin","first_name":"Ramin","last_name":"Hasani"},{"last_name":"Amini","first_name":"Alexander","full_name":"Amini, Alexander"},{"full_name":"Henzinger, Thomas A","last_name":"Henzinger","first_name":"Thomas A","orcid":"0000-0002-2985-7724","id":"40876CD8-F248-11E8-B48F-1D18A9856A87"},{"first_name":"Daniela","last_name":"Rus","full_name":"Rus, Daniela"},{"last_name":"Grosu","first_name":"Radu","full_name":"Grosu, Radu"}],"volume":2,"date_updated":"2023-08-22T10:36:06Z","date_created":"2020-10-19T13:46:06Z"},{"author":[{"last_name":"Lechner","first_name":"Mathias","id":"3DC22916-F248-11E8-B48F-1D18A9856A87","full_name":"Lechner, Mathias"},{"first_name":"Ramin","last_name":"Hasani","full_name":"Hasani, Ramin"},{"first_name":"Daniela","last_name":"Rus","full_name":"Rus, Daniela"},{"first_name":"Radu","last_name":"Grosu","full_name":"Grosu, Radu"}],"date_created":"2020-10-25T23:01:19Z","date_updated":"2023-08-22T10:40:15Z","year":"2020","acknowledgement":"M.L. is supported in parts by the Austrian Science Fund (FWF) under grant Z211-N23 (Wittgenstein Award). R.H., and R.G. are partially supported by the Horizon-2020 ECSELProject grant No. 783163 (iDev40), and the Austrian Research Promotion Agency (FFG), Project No. 860424. R.H. and D.R. is partially supported by the Boeing Company.","publisher":"IEEE","department":[{"_id":"ToHe"}],"publication_status":"published","file_date_updated":"2020-11-06T10:58:49Z","doi":"10.1109/ICRA40945.2020.9196608","conference":{"end_date":"2020-08-31","start_date":"2020-05-31","location":"Paris, France","name":"ICRA: International Conference on Robotics and Automation"},"language":[{"iso":"eng"}],"external_id":{"isi":["000712319503110"]},"oa":1,"project":[{"_id":"25F42A32-B435-11E9-9278-68D0E5697425","grant_number":"Z211","name":"The Wittgenstein Prize","call_identifier":"FWF"}],"isi":1,"quality_controlled":"1","publication_identifier":{"isbn":["9781728173955"],"issn":["10504729"]},"month":"05","oa_version":"Submitted Version","file":[{"checksum":"fccf7b986ac78046918a298cc6849a50","success":1,"date_updated":"2020-11-06T10:58:49Z","date_created":"2020-11-06T10:58:49Z","relation":"main_file","file_id":"8733","content_type":"application/pdf","file_size":1070010,"creator":"dernst","access_level":"open_access","file_name":"2020_ICRA_Lechner.pdf"}],"user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","_id":"8704","ddc":["000"],"title":"Gershgorin loss stabilizes the recurrent neural network compartment of an end-to-end robot learning scheme","status":"public","abstract":[{"text":"Traditional robotic control suits require profound task-specific knowledge for designing, building and testing control software. The rise of Deep Learning has enabled end-to-end solutions to be learned entirely from data, requiring minimal knowledge about the application area. We design a learning scheme to train end-to-end linear dynamical systems (LDS)s by gradient descent in imitation learning robotic domains. We introduce a new regularization loss component together with a learning algorithm that improves the stability of the learned autonomous system, by forcing the eigenvalues of the internal state updates of an LDS to be negative reals. We evaluate our approach on a series of real-life and simulated robotic experiments, in comparison to linear and nonlinear Recurrent Neural Network (RNN) architectures. Our results show that our stabilizing method significantly improves test performance of LDS, enabling such linear models to match the performance of contemporary nonlinear RNN architectures. A video of the obstacle avoidance performance of our method on a mobile robot, in unseen environments, compared to other methods can be viewed at https://youtu.be/mhEsCoNao5E.","lang":"eng"}],"type":"conference","alternative_title":["ICRA"],"date_published":"2020-05-01T00:00:00Z","citation":{"ama":"Lechner M, Hasani R, Rus D, Grosu R. Gershgorin loss stabilizes the recurrent neural network compartment of an end-to-end robot learning scheme. In: Proceedings - IEEE International Conference on Robotics and Automation. IEEE; 2020:5446-5452. doi:10.1109/ICRA40945.2020.9196608","ista":"Lechner M, Hasani R, Rus D, Grosu R. 2020. Gershgorin loss stabilizes the recurrent neural network compartment of an end-to-end robot learning scheme. Proceedings - IEEE International Conference on Robotics and Automation. ICRA: International Conference on Robotics and Automation, ICRA, , 5446–5452.","apa":"Lechner, M., Hasani, R., Rus, D., & Grosu, R. (2020). Gershgorin loss stabilizes the recurrent neural network compartment of an end-to-end robot learning scheme. In Proceedings - IEEE International Conference on Robotics and Automation (pp. 5446–5452). Paris, France: IEEE. https://doi.org/10.1109/ICRA40945.2020.9196608","ieee":"M. Lechner, R. Hasani, D. Rus, and R. Grosu, “Gershgorin loss stabilizes the recurrent neural network compartment of an end-to-end robot learning scheme,” in Proceedings - IEEE International Conference on Robotics and Automation, Paris, France, 2020, pp. 5446–5452.","mla":"Lechner, Mathias, et al. “Gershgorin Loss Stabilizes the Recurrent Neural Network Compartment of an End-to-End Robot Learning Scheme.” Proceedings - IEEE International Conference on Robotics and Automation, IEEE, 2020, pp. 5446–52, doi:10.1109/ICRA40945.2020.9196608.","short":"M. Lechner, R. Hasani, D. Rus, R. Grosu, in:, Proceedings - IEEE International Conference on Robotics and Automation, IEEE, 2020, pp. 5446–5452.","chicago":"Lechner, Mathias, Ramin Hasani, Daniela Rus, and Radu Grosu. “Gershgorin Loss Stabilizes the Recurrent Neural Network Compartment of an End-to-End Robot Learning Scheme.” In Proceedings - IEEE International Conference on Robotics and Automation, 5446–52. IEEE, 2020. https://doi.org/10.1109/ICRA40945.2020.9196608."},"publication":"Proceedings - IEEE International Conference on Robotics and Automation","page":"5446-5452","has_accepted_license":"1","article_processing_charge":"No","day":"01","scopus_import":"1"},{"author":[{"first_name":"Marcelo","last_name":"Forets","full_name":"Forets, Marcelo"},{"full_name":"Freire, Daniel","last_name":"Freire","first_name":"Daniel"},{"full_name":"Schilling, Christian","id":"3A2F4DCE-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0003-3658-1065","first_name":"Christian","last_name":"Schilling"}],"date_created":"2020-11-10T07:04:57Z","date_updated":"2023-08-22T12:48:18Z","year":"2020","department":[{"_id":"ToHe"}],"publisher":"IEEE","publication_status":"published","ec_funded":1,"article_number":"9314994","doi":"10.1109/MEMOCODE51338.2020.9314994","conference":{"end_date":"2020-12-04","location":"Virtual Conference","start_date":"2020-12-02","name":"MEMOCODE: Conference on Formal Methods and Models for System Design"},"language":[{"iso":"eng"}],"external_id":{"isi":["000661920400013"],"arxiv":["2006.12325"]},"oa":1,"main_file_link":[{"open_access":"1","url":"https://arxiv.org/abs/2006.12325"}],"project":[{"call_identifier":"FWF","name":"The Wittgenstein Prize","_id":"25F42A32-B435-11E9-9278-68D0E5697425","grant_number":"Z211"},{"grant_number":"754411","_id":"260C2330-B435-11E9-9278-68D0E5697425","call_identifier":"H2020","name":"ISTplus - Postdoctoral Fellowships"}],"isi":1,"quality_controlled":"1","publication_identifier":{"isbn":["9781728191485"]},"month":"12","oa_version":"Preprint","user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","_id":"8750","title":"Efficient reachability analysis of parametric linear hybrid systems with time-triggered transitions","status":"public","abstract":[{"lang":"eng","text":"Efficiently handling time-triggered and possibly nondeterministic switches\r\nfor hybrid systems reachability is a challenging task. In this paper we present\r\nan approach based on conservative set-based enclosure of the dynamics that can\r\nhandle systems with uncertain parameters and inputs, where the uncertainties\r\nare bound to given intervals. The method is evaluated on the plant model of an\r\nexperimental electro-mechanical braking system with periodic controller. In\r\nthis model, the fast-switching controller dynamics requires simulation time\r\nscales of the order of nanoseconds. Accurate set-based computations for\r\nrelatively large time horizons are known to be expensive. However, by\r\nappropriately decoupling the time variable with respect to the spatial\r\nvariables, and enclosing the uncertain parameters using interval matrix maps\r\nacting on zonotopes, we show that the computation time can be lowered to 5000\r\ntimes faster with respect to previous works. This is a step forward in formal\r\nverification of hybrid systems because reduced run-times allow engineers to\r\nintroduce more expressiveness in their models with a relatively inexpensive\r\ncomputational cost."}],"type":"conference","date_published":"2020-12-04T00:00:00Z","citation":{"ieee":"M. Forets, D. Freire, and C. Schilling, “Efficient reachability analysis of parametric linear hybrid systems with time-triggered transitions,” in 18th ACM-IEEE International Conference on Formal Methods and Models for System Design, Virtual Conference, 2020.","apa":"Forets, M., Freire, D., & Schilling, C. (2020). Efficient reachability analysis of parametric linear hybrid systems with time-triggered transitions. In 18th ACM-IEEE International Conference on Formal Methods and Models for System Design. Virtual Conference: IEEE. https://doi.org/10.1109/MEMOCODE51338.2020.9314994","ista":"Forets M, Freire D, Schilling C. 2020. Efficient reachability analysis of parametric linear hybrid systems with time-triggered transitions. 18th ACM-IEEE International Conference on Formal Methods and Models for System Design. MEMOCODE: Conference on Formal Methods and Models for System Design, 9314994.","ama":"Forets M, Freire D, Schilling C. Efficient reachability analysis of parametric linear hybrid systems with time-triggered transitions. In: 18th ACM-IEEE International Conference on Formal Methods and Models for System Design. IEEE; 2020. doi:10.1109/MEMOCODE51338.2020.9314994","chicago":"Forets, Marcelo, Daniel Freire, and Christian Schilling. “Efficient Reachability Analysis of Parametric Linear Hybrid Systems with Time-Triggered Transitions.” In 18th ACM-IEEE International Conference on Formal Methods and Models for System Design. IEEE, 2020. https://doi.org/10.1109/MEMOCODE51338.2020.9314994.","short":"M. Forets, D. Freire, C. Schilling, in:, 18th ACM-IEEE International Conference on Formal Methods and Models for System Design, IEEE, 2020.","mla":"Forets, Marcelo, et al. “Efficient Reachability Analysis of Parametric Linear Hybrid Systems with Time-Triggered Transitions.” 18th ACM-IEEE International Conference on Formal Methods and Models for System Design, 9314994, IEEE, 2020, doi:10.1109/MEMOCODE51338.2020.9314994."},"publication":"18th ACM-IEEE International Conference on Formal Methods and Models for System Design","article_processing_charge":"No","day":"04","scopus_import":"1"},{"conference":{"name":"EMSOFT: International Conference on Embedded Software","end_date":"2020-09-25","start_date":"2020-09-20","location":"Virtual "},"language":[{"iso":"eng"}],"oa":1,"tmp":{"name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","short":"CC BY (4.0)","image":"/images/cc_by.png"},"external_id":{"arxiv":["1905.02458"]},"quality_controlled":"1","project":[{"_id":"25832EC2-B435-11E9-9278-68D0E5697425","grant_number":"S 11407_N23","call_identifier":"FWF","name":"Rigorous Systems Engineering"},{"grant_number":"Z00312","_id":"25C5A090-B435-11E9-9278-68D0E5697425","call_identifier":"FWF","name":"The Wittgenstein Prize"},{"_id":"260C2330-B435-11E9-9278-68D0E5697425","grant_number":"754411","call_identifier":"H2020","name":"ISTplus - Postdoctoral Fellowships"}],"file_date_updated":"2020-08-24T12:53:15Z","ec_funded":1,"author":[{"full_name":"Bogomolov, Sergiy","last_name":"Bogomolov","first_name":"Sergiy"},{"last_name":"Forets","first_name":"Marcelo","full_name":"Forets, Marcelo"},{"first_name":"Goran","last_name":"Frehse","full_name":"Frehse, Goran"},{"full_name":"Potomkin, Kostiantyn","first_name":"Kostiantyn","last_name":"Potomkin"},{"full_name":"Schilling, Christian","last_name":"Schilling","first_name":"Christian","orcid":"0000-0003-3658-1065","id":"3A2F4DCE-F248-11E8-B48F-1D18A9856A87"}],"related_material":{"record":[{"id":"8790","status":"public","relation":"later_version"}]},"date_updated":"2023-08-22T13:27:32Z","date_created":"2020-08-24T12:56:20Z","year":"2020","publication_status":"published","department":[{"_id":"ToHe"}],"article_processing_charge":"No","has_accepted_license":"1","keyword":["reachability","hybrid systems","decomposition"],"date_published":"2020-01-01T00:00:00Z","publication":"Proceedings of the International Conference on Embedded Software","citation":{"mla":"Bogomolov, Sergiy, et al. “Reachability Analysis of Linear Hybrid Systems via Block Decomposition.” Proceedings of the International Conference on Embedded Software, 2020.","short":"S. Bogomolov, M. Forets, G. Frehse, K. Potomkin, C. Schilling, in:, Proceedings of the International Conference on Embedded Software, 2020.","chicago":"Bogomolov, Sergiy, Marcelo Forets, Goran Frehse, Kostiantyn Potomkin, and Christian Schilling. “Reachability Analysis of Linear Hybrid Systems via Block Decomposition.” In Proceedings of the International Conference on Embedded Software, 2020.","ama":"Bogomolov S, Forets M, Frehse G, Potomkin K, Schilling C. Reachability analysis of linear hybrid systems via block decomposition. In: Proceedings of the International Conference on Embedded Software. ; 2020.","ista":"Bogomolov S, Forets M, Frehse G, Potomkin K, Schilling C. 2020. Reachability analysis of linear hybrid systems via block decomposition. Proceedings of the International Conference on Embedded Software. EMSOFT: International Conference on Embedded Software.","ieee":"S. Bogomolov, M. Forets, G. Frehse, K. Potomkin, and C. Schilling, “Reachability analysis of linear hybrid systems via block decomposition,” in Proceedings of the International Conference on Embedded Software, Virtual , 2020.","apa":"Bogomolov, S., Forets, M., Frehse, G., Potomkin, K., & Schilling, C. (2020). Reachability analysis of linear hybrid systems via block decomposition. In Proceedings of the International Conference on Embedded Software. Virtual ."},"abstract":[{"text":"Reachability analysis aims at identifying states reachable by a system within a given time horizon. This task is known to be computationally expensive for linear hybrid systems. Reachability analysis works by iteratively applying continuous and discrete post operators to compute states reachable according to continuous and discrete dynamics, respectively. In this paper, we enhance both of these operators and make sure that most of the involved computations are performed in low-dimensional state space. In particular, we improve the continuous-post operator by performing computations in high-dimensional state space only for time intervals relevant for the subsequent application of the discrete-post operator. Furthermore, the new discrete-post operator performs low-dimensional computations by leveraging the structure of the guard and assignment of a considered transition. We illustrate the potential of our approach on a number of challenging benchmarks.","lang":"eng"}],"type":"conference","oa_version":"Preprint","file":[{"file_name":"2020EMSOFT.pdf","access_level":"open_access","creator":"cschilli","file_size":696384,"content_type":"application/pdf","file_id":"8288","relation":"main_file","date_created":"2020-08-24T12:53:15Z","date_updated":"2020-08-24T12:53:15Z","success":1,"checksum":"d19e97d0f8a3a441dc078ec812297d75"}],"user_id":"8b945eb4-e2f2-11eb-945a-df72226e66a9","_id":"8287","title":"Reachability analysis of linear hybrid systems via block decomposition","status":"public","ddc":["000"]},{"doi":"10.1109/TCAD.2020.3012859","language":[{"iso":"eng"}],"oa":1,"external_id":{"arxiv":["1905.02458"],"isi":["000587712700072"]},"main_file_link":[{"open_access":"1","url":"https://arxiv.org/abs/1905.02458"}],"project":[{"_id":"25832EC2-B435-11E9-9278-68D0E5697425","grant_number":"S 11407_N23","name":"Rigorous Systems Engineering","call_identifier":"FWF"},{"_id":"25F42A32-B435-11E9-9278-68D0E5697425","grant_number":"Z211","call_identifier":"FWF","name":"The Wittgenstein Prize"},{"call_identifier":"H2020","name":"ISTplus - Postdoctoral Fellowships","_id":"260C2330-B435-11E9-9278-68D0E5697425","grant_number":"754411"}],"quality_controlled":"1","isi":1,"publication_identifier":{"eissn":["19374151"],"issn":["02780070"]},"month":"11","related_material":{"record":[{"status":"public","relation":"earlier_version","id":"8287"}]},"author":[{"full_name":"Bogomolov, Sergiy","orcid":"0000-0002-0686-0365","id":"369D9A44-F248-11E8-B48F-1D18A9856A87","last_name":"Bogomolov","first_name":"Sergiy"},{"full_name":"Forets, Marcelo","first_name":"Marcelo","last_name":"Forets"},{"first_name":"Goran","last_name":"Frehse","full_name":"Frehse, Goran"},{"last_name":"Potomkin","first_name":"Kostiantyn","full_name":"Potomkin, Kostiantyn"},{"full_name":"Schilling, Christian","first_name":"Christian","last_name":"Schilling","id":"3A2F4DCE-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0003-3658-1065"}],"volume":39,"date_created":"2020-11-22T23:01:25Z","date_updated":"2023-08-22T13:27:33Z","year":"2020","acknowledgement":"This research was supported in part by the Austrian Science Fund (FWF) under grants S11402-N23 (RiSE/SHiNE) and Z211-N23 (Wittgenstein Award), the European Union’s Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie grant agreement No. 754411, and the Air Force Office of Scientific Research under award number FA2386-17-1-4065. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the United States Air Force. ","publisher":"IEEE","department":[{"_id":"ToHe"}],"publication_status":"published","ec_funded":1,"date_published":"2020-11-01T00:00:00Z","citation":{"ama":"Bogomolov S, Forets M, Frehse G, Potomkin K, Schilling C. Reachability analysis of linear hybrid systems via block decomposition. IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems. 2020;39(11):4018-4029. doi:10.1109/TCAD.2020.3012859","ieee":"S. Bogomolov, M. Forets, G. Frehse, K. Potomkin, and C. Schilling, “Reachability analysis of linear hybrid systems via block decomposition,” IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems, vol. 39, no. 11. IEEE, pp. 4018–4029, 2020.","apa":"Bogomolov, S., Forets, M., Frehse, G., Potomkin, K., & Schilling, C. (2020). Reachability analysis of linear hybrid systems via block decomposition. IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems. IEEE. https://doi.org/10.1109/TCAD.2020.3012859","ista":"Bogomolov S, Forets M, Frehse G, Potomkin K, Schilling C. 2020. Reachability analysis of linear hybrid systems via block decomposition. IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems. 39(11), 4018–4029.","short":"S. Bogomolov, M. Forets, G. Frehse, K. Potomkin, C. Schilling, IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems 39 (2020) 4018–4029.","mla":"Bogomolov, Sergiy, et al. “Reachability Analysis of Linear Hybrid Systems via Block Decomposition.” IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems, vol. 39, no. 11, IEEE, 2020, pp. 4018–29, doi:10.1109/TCAD.2020.3012859.","chicago":"Bogomolov, Sergiy, Marcelo Forets, Goran Frehse, Kostiantyn Potomkin, and Christian Schilling. “Reachability Analysis of Linear Hybrid Systems via Block Decomposition.” IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems. IEEE, 2020. https://doi.org/10.1109/TCAD.2020.3012859."},"publication":"IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems","page":"4018-4029","article_type":"original","article_processing_charge":"No","day":"01","scopus_import":"1","oa_version":"Preprint","_id":"8790","user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","intvolume":" 39","title":"Reachability analysis of linear hybrid systems via block decomposition","status":"public","issue":"11","abstract":[{"text":"Reachability analysis aims at identifying states reachable by a system within a given time horizon. This task is known to be computationally expensive for linear hybrid systems. Reachability analysis works by iteratively applying continuous and discrete post operators to compute states reachable according to continuous and discrete dynamics, respectively. In this article, we enhance both of these operators and make sure that most of the involved computations are performed in low-dimensional state space. In particular, we improve the continuous-post operator by performing computations in high-dimensional state space only for time intervals relevant for the subsequent application of the discrete-post operator. Furthermore, the new discrete-post operator performs low-dimensional computations by leveraging the structure of the guard and assignment of a considered transition. We illustrate the potential of our approach on a number of challenging benchmarks.","lang":"eng"}],"type":"journal_article"},{"language":[{"iso":"eng"}],"conference":{"end_date":"2020-02-12","start_date":"2020-02-07","location":"New York, NY, United States","name":"AAAI: Conference on Artificial Intelligence"},"doi":"10.1609/aaai.v34i02.5546","quality_controlled":"1","project":[{"_id":"25F2ACDE-B435-11E9-9278-68D0E5697425","grant_number":"S11402-N23","call_identifier":"FWF","name":"Rigorous Systems Engineering"},{"name":"The Wittgenstein Prize","call_identifier":"FWF","grant_number":"Z211","_id":"25F42A32-B435-11E9-9278-68D0E5697425"},{"_id":"264B3912-B435-11E9-9278-68D0E5697425","grant_number":"M02369","name":"Formal Methods meets Algorithmic Game Theory","call_identifier":"FWF"}],"external_id":{"arxiv":["1911.08360"]},"month":"04","publication_identifier":{"issn":["2159-5399"],"isbn":["9781577358350"],"eissn":["2374-3468"]},"date_updated":"2023-09-05T12:40:00Z","date_created":"2021-02-25T09:05:18Z","volume":34,"author":[{"last_name":"Avni","first_name":"Guy","orcid":"0000-0001-5588-8287","id":"463C8BC2-F248-11E8-B48F-1D18A9856A87","full_name":"Avni, Guy"},{"id":"3B699956-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0003-4783-0389","first_name":"Rasmus","last_name":"Ibsen-Jensen","full_name":"Ibsen-Jensen, Rasmus"},{"full_name":"Tkadlec, Josef","first_name":"Josef","last_name":"Tkadlec","id":"3F24CCC8-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0002-1097-9684"}],"publication_status":"published","publisher":"Association for the Advancement of Artificial Intelligence","department":[{"_id":"ToHe"},{"_id":"KrCh"}],"year":"2020","acknowledgement":"This research was supported by the Austrian Science Fund (FWF) under grants S11402-N23 (RiSE/SHiNE), Z211-N23 (Wittgenstein Award), and M 2369-N33 (Meitner fellowship).","date_published":"2020-04-03T00:00:00Z","article_type":"original","page":"1798-1805","publication":"Proceedings of the AAAI Conference on Artificial Intelligence","citation":{"ista":"Avni G, Ibsen-Jensen R, Tkadlec J. 2020. All-pay bidding games on graphs. Proceedings of the AAAI Conference on Artificial Intelligence. 34(02), 1798–1805.","apa":"Avni, G., Ibsen-Jensen, R., & Tkadlec, J. (2020). All-pay bidding games on graphs. Proceedings of the AAAI Conference on Artificial Intelligence. New York, NY, United States: Association for the Advancement of Artificial Intelligence. https://doi.org/10.1609/aaai.v34i02.5546","ieee":"G. Avni, R. Ibsen-Jensen, and J. Tkadlec, “All-pay bidding games on graphs,” Proceedings of the AAAI Conference on Artificial Intelligence, vol. 34, no. 02. Association for the Advancement of Artificial Intelligence, pp. 1798–1805, 2020.","ama":"Avni G, Ibsen-Jensen R, Tkadlec J. All-pay bidding games on graphs. Proceedings of the AAAI Conference on Artificial Intelligence. 2020;34(02):1798-1805. doi:10.1609/aaai.v34i02.5546","chicago":"Avni, Guy, Rasmus Ibsen-Jensen, and Josef Tkadlec. “All-Pay Bidding Games on Graphs.” Proceedings of the AAAI Conference on Artificial Intelligence. Association for the Advancement of Artificial Intelligence, 2020. https://doi.org/10.1609/aaai.v34i02.5546.","mla":"Avni, Guy, et al. “All-Pay Bidding Games on Graphs.” Proceedings of the AAAI Conference on Artificial Intelligence, vol. 34, no. 02, Association for the Advancement of Artificial Intelligence, 2020, pp. 1798–805, doi:10.1609/aaai.v34i02.5546.","short":"G. Avni, R. Ibsen-Jensen, J. Tkadlec, Proceedings of the AAAI Conference on Artificial Intelligence 34 (2020) 1798–1805."},"day":"03","article_processing_charge":"No","scopus_import":"1","oa_version":"Preprint","status":"public","title":"All-pay bidding games on graphs","intvolume":" 34","user_id":"c635000d-4b10-11ee-a964-aac5a93f6ac1","_id":"9197","abstract":[{"text":"In this paper we introduce and study all-pay bidding games, a class of two player, zero-sum games on graphs. The game proceeds as follows. We place a token on some vertex in the graph and assign budgets to the two players. Each turn, each player submits a sealed legal bid (non-negative and below their remaining budget), which is deducted from their budget and the highest bidder moves the token onto an adjacent vertex. The game ends once a sink is reached, and Player 1 pays Player 2 the outcome that is associated with the sink. The players attempt to maximize their expected outcome. Our games model settings where effort (of no inherent value) needs to be invested in an ongoing and stateful manner. On the negative side, we show that even in simple games on DAGs, optimal strategies may require a distribution over bids with infinite support. A central quantity in bidding games is the ratio of the players budgets. On the positive side, we show a simple FPTAS for DAGs, that, for each budget ratio, outputs an approximation for the optimal strategy for that ratio. We also implement it, show that it performs well, and suggests interesting properties of these games. Then, given an outcome c, we show an algorithm for finding the necessary and sufficient initial ratio for guaranteeing outcome c with probability 1 and a strategy ensuring such. Finally, while the general case has not previously been studied, solving the specific game in which Player 1 wins iff he wins the first two auctions, has been long stated as an open question, which we solve.","lang":"eng"}],"issue":"02","type":"journal_article"},{"publication":"Runtime Verification","citation":{"short":"T.A. Henzinger, N.E. Sarac, in:, Runtime Verification, Springer Nature, 2020, pp. 3–18.","mla":"Henzinger, Thomas A., and Naci E. Sarac. “Monitorability under Assumptions.” Runtime Verification, vol. 12399, Springer Nature, 2020, pp. 3–18, doi:10.1007/978-3-030-60508-7_1.","chicago":"Henzinger, Thomas A, and Naci E Sarac. “Monitorability under Assumptions.” In Runtime Verification, 12399:3–18. Springer Nature, 2020. https://doi.org/10.1007/978-3-030-60508-7_1.","ama":"Henzinger TA, Sarac NE. Monitorability under assumptions. In: Runtime Verification. Vol 12399. Springer Nature; 2020:3-18. doi:10.1007/978-3-030-60508-7_1","apa":"Henzinger, T. A., & Sarac, N. E. (2020). Monitorability under assumptions. In Runtime Verification (Vol. 12399, pp. 3–18). Los Angeles, CA, United States: Springer Nature. https://doi.org/10.1007/978-3-030-60508-7_1","ieee":"T. A. Henzinger and N. E. Sarac, “Monitorability under assumptions,” in Runtime Verification, Los Angeles, CA, United States, 2020, vol. 12399, pp. 3–18.","ista":"Henzinger TA, Sarac NE. 2020. Monitorability under assumptions. Runtime Verification. RV: Runtime Verification, LNCS, vol. 12399, 3–18."},"page":"3-18","date_published":"2020-10-02T00:00:00Z","scopus_import":"1","day":"02","has_accepted_license":"1","article_processing_charge":"No","user_id":"c635000d-4b10-11ee-a964-aac5a93f6ac1","_id":"8623","title":"Monitorability under assumptions","ddc":["000"],"status":"public","intvolume":" 12399","oa_version":"Submitted Version","file":[{"relation":"main_file","file_id":"8665","date_created":"2020-10-15T14:28:06Z","date_updated":"2020-10-15T14:28:06Z","checksum":"00661f9b7034f52e18bf24fa552b8194","success":1,"file_name":"monitorability.pdf","access_level":"open_access","file_size":478148,"content_type":"application/pdf","creator":"esarac"}],"type":"conference","alternative_title":["LNCS"],"abstract":[{"text":"We introduce the monitoring of trace properties under assumptions. An assumption limits the space of possible traces that the monitor may encounter. An assumption may result from knowledge about the system that is being monitored, about the environment, or about another, connected monitor. We define monitorability under assumptions and study its theoretical properties. In particular, we show that for every assumption A, the boolean combinations of properties that are safe or co-safe relative to A are monitorable under A. We give several examples and constructions on how an assumption can make a non-monitorable property monitorable, and how an assumption can make a monitorable property monitorable with fewer resources, such as integer registers.","lang":"eng"}],"oa":1,"external_id":{"isi":["000728160600001"]},"quality_controlled":"1","isi":1,"project":[{"grant_number":"Z211","_id":"25F42A32-B435-11E9-9278-68D0E5697425","name":"The Wittgenstein Prize","call_identifier":"FWF"}],"conference":{"name":"RV: Runtime Verification","end_date":"2020-10-09","start_date":"2020-10-06","location":"Los Angeles, CA, United States"},"doi":"10.1007/978-3-030-60508-7_1","language":[{"iso":"eng"}],"month":"10","publication_identifier":{"issn":["0302-9743"],"eissn":["1611-3349"],"isbn":["9783030605070","9783030605087"]},"year":"2020","acknowledgement":"This research was supported in part by the Austrian Science Fund (FWF) under grant Z211-N23 (Wittgenstein Award).","publication_status":"published","department":[{"_id":"ToHe"}],"publisher":"Springer Nature","author":[{"orcid":"0000-0002-2985-7724","id":"40876CD8-F248-11E8-B48F-1D18A9856A87","last_name":"Henzinger","first_name":"Thomas A","full_name":"Henzinger, Thomas A"},{"first_name":"Naci E","last_name":"Sarac","id":"8C6B42F8-C8E6-11E9-A03A-F2DCE5697425","full_name":"Sarac, Naci E"}],"date_updated":"2023-09-05T15:08:26Z","date_created":"2020-10-07T15:05:37Z","volume":12399,"file_date_updated":"2020-10-15T14:28:06Z"},{"publication_identifier":{"issn":["0302-9743"],"eisbn":["9783030532888"],"isbn":["9783030532871"],"eissn":["1611-3349"]},"month":"07","doi":"10.1007/978-3-030-53288-8_14","language":[{"iso":"eng"}],"oa":1,"tmp":{"name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","short":"CC BY (4.0)","image":"/images/cc_by.png"},"external_id":{"isi":["000695276000014"]},"project":[{"grant_number":"Z211","_id":"25F42A32-B435-11E9-9278-68D0E5697425","name":"The Wittgenstein Prize","call_identifier":"FWF"}],"quality_controlled":"1","isi":1,"file_date_updated":"2020-08-06T08:14:54Z","related_material":{"record":[{"status":"public","relation":"dissertation_contains","id":"8332"}]},"author":[{"full_name":"Kragl, Bernhard","last_name":"Kragl","first_name":"Bernhard","orcid":"0000-0001-7745-9117","id":"320FC952-F248-11E8-B48F-1D18A9856A87"},{"full_name":"Qadeer, Shaz","first_name":"Shaz","last_name":"Qadeer"},{"full_name":"Henzinger, Thomas A","id":"40876CD8-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0002-2985-7724","first_name":"Thomas A","last_name":"Henzinger"}],"volume":12224,"date_created":"2020-08-03T11:45:35Z","date_updated":"2023-09-07T13:18:00Z","acknowledgement":"Bernhard Kragl and Thomas A. Henzinger were supported by\r\nthe Austrian Science Fund (FWF) under grant Z211-N23 (Wittgenstein Award).","year":"2020","department":[{"_id":"ToHe"}],"publisher":"Springer Nature","publication_status":"published","has_accepted_license":"1","article_processing_charge":"No","day":"14","scopus_import":"1","date_published":"2020-07-14T00:00:00Z","citation":{"ama":"Kragl B, Qadeer S, Henzinger TA. Refinement for structured concurrent programs. In: Computer Aided Verification. Vol 12224. Springer Nature; 2020:275-298. doi:10.1007/978-3-030-53288-8_14","ista":"Kragl B, Qadeer S, Henzinger TA. 2020. Refinement for structured concurrent programs. Computer Aided Verification. , LNCS, vol. 12224, 275–298.","apa":"Kragl, B., Qadeer, S., & Henzinger, T. A. (2020). Refinement for structured concurrent programs. In Computer Aided Verification (Vol. 12224, pp. 275–298). Springer Nature. https://doi.org/10.1007/978-3-030-53288-8_14","ieee":"B. Kragl, S. Qadeer, and T. A. Henzinger, “Refinement for structured concurrent programs,” in Computer Aided Verification, 2020, vol. 12224, pp. 275–298.","mla":"Kragl, Bernhard, et al. “Refinement for Structured Concurrent Programs.” Computer Aided Verification, vol. 12224, Springer Nature, 2020, pp. 275–98, doi:10.1007/978-3-030-53288-8_14.","short":"B. Kragl, S. Qadeer, T.A. Henzinger, in:, Computer Aided Verification, Springer Nature, 2020, pp. 275–298.","chicago":"Kragl, Bernhard, Shaz Qadeer, and Thomas A Henzinger. “Refinement for Structured Concurrent Programs.” In Computer Aided Verification, 12224:275–98. Springer Nature, 2020. https://doi.org/10.1007/978-3-030-53288-8_14."},"publication":"Computer Aided Verification","page":"275-298","abstract":[{"text":"This paper presents a foundation for refining concurrent programs with structured control flow. The verification problem is decomposed into subproblems that aid interactive program development, proof reuse, and automation. The formalization in this paper is the basis of a new design and implementation of the Civl verifier.","lang":"eng"}],"type":"conference","alternative_title":["LNCS"],"file":[{"date_created":"2020-08-06T08:14:54Z","date_updated":"2020-08-06T08:14:54Z","success":1,"relation":"main_file","file_id":"8201","file_size":804237,"content_type":"application/pdf","creator":"dernst","file_name":"2020_LNCS_Kragl.pdf","access_level":"open_access"}],"oa_version":"Published Version","user_id":"c635000d-4b10-11ee-a964-aac5a93f6ac1","_id":"8195","intvolume":" 12224","title":"Refinement for structured concurrent programs","ddc":["000"],"status":"public"},{"language":[{"iso":"eng"}],"conference":{"end_date":"2020-06-20","start_date":"2020-06-15","location":"London, United Kingdom","name":"PLDI: Programming Language Design and Implementation"},"doi":"10.1145/3385412.3385980","isi":1,"quality_controlled":"1","project":[{"_id":"25F42A32-B435-11E9-9278-68D0E5697425","grant_number":"Z211","name":"The Wittgenstein Prize","call_identifier":"FWF"}],"external_id":{"isi":["000614622300016"]},"oa":1,"main_file_link":[{"open_access":"1","url":"https://doi.org/10.1145/3385412.3385980"}],"month":"06","publication_identifier":{"isbn":["9781450376136"]},"date_created":"2020-06-25T11:40:16Z","date_updated":"2023-09-07T13:18:00Z","author":[{"orcid":"0000-0001-7745-9117","id":"320FC952-F248-11E8-B48F-1D18A9856A87","last_name":"Kragl","first_name":"Bernhard","full_name":"Kragl, Bernhard"},{"last_name":"Enea","first_name":"Constantin","full_name":"Enea, Constantin"},{"full_name":"Henzinger, Thomas A","orcid":"0000-0002-2985-7724","id":"40876CD8-F248-11E8-B48F-1D18A9856A87","last_name":"Henzinger","first_name":"Thomas A"},{"last_name":"Mutluergil","first_name":"Suha Orhun","full_name":"Mutluergil, Suha Orhun"},{"full_name":"Qadeer, Shaz","first_name":"Shaz","last_name":"Qadeer"}],"related_material":{"record":[{"id":"8332","relation":"dissertation_contains","status":"public"}]},"publication_status":"published","department":[{"_id":"ToHe"}],"publisher":"Association for Computing Machinery","year":"2020","date_published":"2020-06-01T00:00:00Z","page":"227-242","publication":"Proceedings of the 41st ACM SIGPLAN Conference on Programming Language Design and Implementation","citation":{"ama":"Kragl B, Enea C, Henzinger TA, Mutluergil SO, Qadeer S. Inductive sequentialization of asynchronous programs. In: Proceedings of the 41st ACM SIGPLAN Conference on Programming Language Design and Implementation. Association for Computing Machinery; 2020:227-242. doi:10.1145/3385412.3385980","apa":"Kragl, B., Enea, C., Henzinger, T. A., Mutluergil, S. O., & Qadeer, S. (2020). Inductive sequentialization of asynchronous programs. In Proceedings of the 41st ACM SIGPLAN Conference on Programming Language Design and Implementation (pp. 227–242). London, United Kingdom: Association for Computing Machinery. https://doi.org/10.1145/3385412.3385980","ieee":"B. Kragl, C. Enea, T. A. Henzinger, S. O. Mutluergil, and S. Qadeer, “Inductive sequentialization of asynchronous programs,” in Proceedings of the 41st ACM SIGPLAN Conference on Programming Language Design and Implementation, London, United Kingdom, 2020, pp. 227–242.","ista":"Kragl B, Enea C, Henzinger TA, Mutluergil SO, Qadeer S. 2020. Inductive sequentialization of asynchronous programs. Proceedings of the 41st ACM SIGPLAN Conference on Programming Language Design and Implementation. PLDI: Programming Language Design and Implementation, 227–242.","short":"B. Kragl, C. Enea, T.A. Henzinger, S.O. Mutluergil, S. Qadeer, in:, Proceedings of the 41st ACM SIGPLAN Conference on Programming Language Design and Implementation, Association for Computing Machinery, 2020, pp. 227–242.","mla":"Kragl, Bernhard, et al. “Inductive Sequentialization of Asynchronous Programs.” Proceedings of the 41st ACM SIGPLAN Conference on Programming Language Design and Implementation, Association for Computing Machinery, 2020, pp. 227–42, doi:10.1145/3385412.3385980.","chicago":"Kragl, Bernhard, Constantin Enea, Thomas A Henzinger, Suha Orhun Mutluergil, and Shaz Qadeer. “Inductive Sequentialization of Asynchronous Programs.” In Proceedings of the 41st ACM SIGPLAN Conference on Programming Language Design and Implementation, 227–42. Association for Computing Machinery, 2020. https://doi.org/10.1145/3385412.3385980."},"day":"01","article_processing_charge":"No","scopus_import":"1","oa_version":"Published Version","title":"Inductive sequentialization of asynchronous programs","status":"public","user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","_id":"8012","abstract":[{"text":"Asynchronous programs are notoriously difficult to reason about because they spawn computation tasks which take effect asynchronously in a nondeterministic way. Devising inductive invariants for such programs requires understanding and stating complex relationships between an unbounded number of computation tasks in arbitrarily long executions. In this paper, we introduce inductive sequentialization, a new proof rule that sidesteps this complexity via a sequential reduction, a sequential program that captures every behavior of the original program up to reordering of coarse-grained commutative actions. A sequential reduction of a concurrent program is easy to reason about since it corresponds to a simple execution of the program in an idealized synchronous environment, where processes act in a fixed order and at the same speed. We have implemented and integrated our proof rule in the CIVL verifier, allowing us to provably derive fine-grained implementations of asynchronous programs. We have successfully applied our proof rule to a diverse set of message-passing protocols, including leader election protocols, two-phase commit, and Paxos.","lang":"eng"}],"type":"conference"},{"date_created":"2022-03-18T10:10:53Z","date_updated":"2023-09-08T11:52:02Z","volume":22,"author":[{"full_name":"Nickovic, Dejan","id":"41BCEE5C-F248-11E8-B48F-1D18A9856A87","last_name":"Nickovic","first_name":"Dejan"},{"first_name":"Olivier","last_name":"Lebeltel","full_name":"Lebeltel, Olivier"},{"first_name":"Oded","last_name":"Maler","full_name":"Maler, Oded"},{"full_name":"Ferrere, Thomas","id":"40960E6E-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0001-5199-3143","first_name":"Thomas","last_name":"Ferrere"},{"full_name":"Ulus, Dogan","last_name":"Ulus","first_name":"Dogan"}],"related_material":{"record":[{"status":"public","relation":"earlier_version","id":"299"}]},"publication_status":"published","publisher":"Springer Nature","department":[{"_id":"ToHe"}],"year":"2020","month":"08","publication_identifier":{"issn":["1433-2779"],"eissn":["1433-2787"]},"language":[{"iso":"eng"}],"doi":"10.1007/s10009-020-00582-z","isi":1,"quality_controlled":"1","external_id":{"isi":["000555398600001"]},"abstract":[{"lang":"eng","text":"We introduce in this paper AMT2.0, a tool for qualitative and quantitative analysis of hybrid continuous and Boolean signals that combine numerical values and discrete events. The evaluation of the signals is based on rich temporal specifications expressed in extended signal temporal logic, which integrates timed regular expressions within signal temporal logic. The tool features qualitative monitoring (property satisfaction checking), trace diagnostics for explaining and justifying property violations and specification-driven measurement of quantitative features of the signal. We demonstrate the tool functionality on several running examples and case studies, and evaluate its performance."}],"issue":"6","type":"journal_article","oa_version":"None","title":"AMT 2.0: Qualitative and quantitative trace analysis with extended signal temporal logic","status":"public","intvolume":" 22","user_id":"c635000d-4b10-11ee-a964-aac5a93f6ac1","_id":"10861","day":"03","article_processing_charge":"No","keyword":["Information Systems","Software"],"scopus_import":"1","date_published":"2020-08-03T00:00:00Z","article_type":"original","page":"741-758","publication":"International Journal on Software Tools for Technology Transfer","citation":{"ama":"Nickovic D, Lebeltel O, Maler O, Ferrere T, Ulus D. AMT 2.0: Qualitative and quantitative trace analysis with extended signal temporal logic. International Journal on Software Tools for Technology Transfer. 2020;22(6):741-758. doi:10.1007/s10009-020-00582-z","ieee":"D. Nickovic, O. Lebeltel, O. Maler, T. Ferrere, and D. Ulus, “AMT 2.0: Qualitative and quantitative trace analysis with extended signal temporal logic,” International Journal on Software Tools for Technology Transfer, vol. 22, no. 6. Springer Nature, pp. 741–758, 2020.","apa":"Nickovic, D., Lebeltel, O., Maler, O., Ferrere, T., & Ulus, D. (2020). AMT 2.0: Qualitative and quantitative trace analysis with extended signal temporal logic. International Journal on Software Tools for Technology Transfer. Springer Nature. https://doi.org/10.1007/s10009-020-00582-z","ista":"Nickovic D, Lebeltel O, Maler O, Ferrere T, Ulus D. 2020. AMT 2.0: Qualitative and quantitative trace analysis with extended signal temporal logic. International Journal on Software Tools for Technology Transfer. 22(6), 741–758.","short":"D. Nickovic, O. Lebeltel, O. Maler, T. Ferrere, D. Ulus, International Journal on Software Tools for Technology Transfer 22 (2020) 741–758.","mla":"Nickovic, Dejan, et al. “AMT 2.0: Qualitative and Quantitative Trace Analysis with Extended Signal Temporal Logic.” International Journal on Software Tools for Technology Transfer, vol. 22, no. 6, Springer Nature, 2020, pp. 741–58, doi:10.1007/s10009-020-00582-z.","chicago":"Nickovic, Dejan, Olivier Lebeltel, Oded Maler, Thomas Ferrere, and Dogan Ulus. “AMT 2.0: Qualitative and Quantitative Trace Analysis with Extended Signal Temporal Logic.” International Journal on Software Tools for Technology Transfer. Springer Nature, 2020. https://doi.org/10.1007/s10009-020-00582-z."}},{"oa_version":"Published Version","file":[{"file_name":"kragl-thesis.pdf","access_level":"open_access","file_size":1348815,"content_type":"application/pdf","creator":"bkragl","relation":"main_file","file_id":"8333","date_created":"2020-09-04T12:17:47Z","date_updated":"2020-09-04T12:17:47Z","checksum":"26fe261550f691280bda4c454bf015c7"},{"checksum":"b9694ce092b7c55557122adba8337ebc","date_updated":"2020-09-04T13:00:17Z","date_created":"2020-09-04T13:00:17Z","relation":"source_file","file_id":"8335","file_size":372312,"content_type":"application/zip","creator":"bkragl","access_level":"closed","file_name":"kragl-thesis.zip"}],"_id":"8332","user_id":"c635000d-4b10-11ee-a964-aac5a93f6ac1","title":"Verifying concurrent programs: Refinement, synchronization, sequentialization","status":"public","ddc":["000"],"abstract":[{"lang":"eng","text":"Designing and verifying concurrent programs is a notoriously challenging, time consuming, and error prone task, even for experts. This is due to the sheer number of possible interleavings of a concurrent program, all of which have to be tracked and accounted for in a formal proof. Inventing an inductive invariant that captures all interleavings of a low-level implementation is theoretically possible, but practically intractable. We develop a refinement-based verification framework that provides mechanisms to simplify proof construction by decomposing the verification task into smaller subtasks.\r\n\r\nIn a first line of work, we present a foundation for refinement reasoning over structured concurrent programs. We introduce layered concurrent programs as a compact notation to represent multi-layer refinement proofs. A layered concurrent program specifies a sequence of connected concurrent programs, from most concrete to most abstract, such that common parts of different programs are written exactly once. Each program in this sequence is expressed as structured concurrent program, i.e., a program over (potentially recursive) procedures, imperative control flow, gated atomic actions, structured parallelism, and asynchronous concurrency. This is in contrast to existing refinement-based verifiers, which represent concurrent systems as flat transition relations. We present a powerful refinement proof rule that decomposes refinement checking over structured programs into modular verification conditions. Refinement checking is supported by a new form of modular, parameterized invariants, called yield invariants, and a linear permission system to enhance local reasoning.\r\n\r\nIn a second line of work, we present two new reduction-based program transformations that target asynchronous programs. These transformations reduce the number of interleavings that need to be considered, thus reducing the complexity of invariants. Synchronization simplifies the verification of asynchronous programs by introducing the fiction, for proof purposes, that asynchronous operations complete synchronously. Synchronization summarizes an asynchronous computation as immediate atomic effect. Inductive sequentialization establishes sequential reductions that captures every behavior of the original program up to reordering of coarse-grained commutative actions. A sequential reduction of a concurrent program is easy to reason about since it corresponds to a simple execution of the program in an idealized synchronous environment, where processes act in a fixed order and at the same speed.\r\n\r\nOur approach is implemented the CIVL verifier, which has been successfully used for the verification of several complex concurrent programs. In our methodology, the overall correctness of a program is established piecemeal by focusing on the invariant required for each refinement step separately. While the programmer does the creative work of specifying the chain of programs and the inductive invariant justifying each link in the chain, the tool automatically constructs the verification conditions underlying each refinement step."}],"type":"dissertation","alternative_title":["ISTA Thesis"],"date_published":"2020-09-03T00:00:00Z","citation":{"short":"B. Kragl, Verifying Concurrent Programs: Refinement, Synchronization, Sequentialization, Institute of Science and Technology Austria, 2020.","mla":"Kragl, Bernhard. Verifying Concurrent Programs: Refinement, Synchronization, Sequentialization. Institute of Science and Technology Austria, 2020, doi:10.15479/AT:ISTA:8332.","chicago":"Kragl, Bernhard. “Verifying Concurrent Programs: Refinement, Synchronization, Sequentialization.” Institute of Science and Technology Austria, 2020. https://doi.org/10.15479/AT:ISTA:8332.","ama":"Kragl B. Verifying concurrent programs: Refinement, synchronization, sequentialization. 2020. doi:10.15479/AT:ISTA:8332","ieee":"B. Kragl, “Verifying concurrent programs: Refinement, synchronization, sequentialization,” Institute of Science and Technology Austria, 2020.","apa":"Kragl, B. (2020). Verifying concurrent programs: Refinement, synchronization, sequentialization. Institute of Science and Technology Austria. https://doi.org/10.15479/AT:ISTA:8332","ista":"Kragl B. 2020. Verifying concurrent programs: Refinement, synchronization, sequentialization. Institute of Science and Technology Austria."},"page":"120","day":"03","has_accepted_license":"1","article_processing_charge":"No","author":[{"full_name":"Kragl, Bernhard","id":"320FC952-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0001-7745-9117","first_name":"Bernhard","last_name":"Kragl"}],"related_material":{"record":[{"id":"133","status":"public","relation":"part_of_dissertation"},{"status":"public","relation":"part_of_dissertation","id":"8012"},{"status":"public","relation":"part_of_dissertation","id":"8195"},{"id":"160","relation":"part_of_dissertation","status":"public"}]},"date_created":"2020-09-04T12:24:12Z","date_updated":"2023-09-13T08:45:08Z","year":"2020","publication_status":"published","department":[{"_id":"ToHe"}],"publisher":"Institute of Science and Technology Austria","file_date_updated":"2020-09-04T13:00:17Z","doi":"10.15479/AT:ISTA:8332","degree_awarded":"PhD","supervisor":[{"full_name":"Henzinger, Thomas A","last_name":"Henzinger","first_name":"Thomas A","orcid":"0000-0002-2985-7724","id":"40876CD8-F248-11E8-B48F-1D18A9856A87"}],"language":[{"iso":"eng"}],"oa":1,"month":"09","publication_identifier":{"issn":["2663-337X"]}},{"acknowledgement":"Miriam Garc´ıa Soto was partially supported by the Austrian Science Fund (FWF) under grant Z211-N23 (Wittgenstein Award). Pavithra Prabhakar was partially supported by NSF CAREER Award No. 1552668, NSF Award No. 2008957 and ONR YIP Award No. N000141712577.","year":"2020","department":[{"_id":"ToHe"}],"publisher":"IEEE","publication_status":"published","author":[{"full_name":"Garcia Soto, Miriam","first_name":"Miriam","last_name":"Garcia Soto","id":"4B3207F6-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0003-2936-5719"},{"full_name":"Prabhakar, Pavithra","first_name":"Pavithra","last_name":"Prabhakar"}],"date_created":"2021-02-26T16:38:24Z","date_updated":"2024-02-22T13:25:19Z","file_date_updated":"2021-02-26T16:38:14Z","oa":1,"external_id":{"isi":["000680435100021"]},"project":[{"_id":"25F42A32-B435-11E9-9278-68D0E5697425","grant_number":"Z211","call_identifier":"FWF","name":"The Wittgenstein Prize"}],"isi":1,"quality_controlled":"1","doi":"10.1109/RTSS49844.2020.00031","conference":{"name":"RTTS: Real-Time Systems Symposium","end_date":"2020-12-04","start_date":"2020-12-01","location":"Houston, TX, USA "},"language":[{"iso":"eng"}],"publication_identifier":{"eisbn":["9781728183244"],"eissn":["2576-3172"]},"month":"12","user_id":"3E5EF7F0-F248-11E8-B48F-1D18A9856A87","_id":"9202","status":"public","title":"Hybridization for stability verification of nonlinear switched systems","ddc":["000"],"oa_version":"Submitted Version","file":[{"file_id":"9203","relation":"main_file","date_created":"2021-02-26T16:38:14Z","date_updated":"2021-02-26T16:38:14Z","checksum":"8f97f229316c3b3a6f0cf99297aa0941","file_name":"main.pdf","access_level":"open_access","creator":"mgarcias","content_type":"application/pdf","file_size":1125794}],"type":"conference","abstract":[{"text":"We propose a novel hybridization method for stability analysis that over-approximates nonlinear dynamical systems by switched systems with linear inclusion dynamics. We observe that existing hybridization techniques for safety analysis that over-approximate nonlinear dynamical systems by switched affine inclusion dynamics and provide fixed approximation error, do not suffice for stability analysis. Hence, we propose a hybridization method that provides a state-dependent error which converges to zero as the state tends to the equilibrium point. The crux of our hybridization computation is an elegant recursive algorithm that uses partial derivatives of a given function to obtain upper and lower bound matrices for the over-approximating linear inclusion. We illustrate our method on some examples to demonstrate the application of the theory for stability analysis. In particular, our method is able to establish stability of a nonlinear system which does not admit a polynomial Lyapunov function.","lang":"eng"}],"citation":{"apa":"Garcia Soto, M., & Prabhakar, P. (2020). Hybridization for stability verification of nonlinear switched systems. In 2020 IEEE Real-Time Systems Symposium (pp. 244–256). Houston, TX, USA : IEEE. https://doi.org/10.1109/RTSS49844.2020.00031","ieee":"M. Garcia Soto and P. Prabhakar, “Hybridization for stability verification of nonlinear switched systems,” in 2020 IEEE Real-Time Systems Symposium, Houston, TX, USA , 2020, pp. 244–256.","ista":"Garcia Soto M, Prabhakar P. 2020. Hybridization for stability verification of nonlinear switched systems. 2020 IEEE Real-Time Systems Symposium. RTTS: Real-Time Systems Symposium, 244–256.","ama":"Garcia Soto M, Prabhakar P. Hybridization for stability verification of nonlinear switched systems. In: 2020 IEEE Real-Time Systems Symposium. IEEE; 2020:244-256. doi:10.1109/RTSS49844.2020.00031","chicago":"Garcia Soto, Miriam, and Pavithra Prabhakar. “Hybridization for Stability Verification of Nonlinear Switched Systems.” In 2020 IEEE Real-Time Systems Symposium, 244–56. IEEE, 2020. https://doi.org/10.1109/RTSS49844.2020.00031.","short":"M. Garcia Soto, P. Prabhakar, in:, 2020 IEEE Real-Time Systems Symposium, IEEE, 2020, pp. 244–256.","mla":"Garcia Soto, Miriam, and Pavithra Prabhakar. “Hybridization for Stability Verification of Nonlinear Switched Systems.” 2020 IEEE Real-Time Systems Symposium, IEEE, 2020, pp. 244–56, doi:10.1109/RTSS49844.2020.00031."},"publication":"2020 IEEE Real-Time Systems Symposium","page":"244-256","date_published":"2020-12-01T00:00:00Z","article_processing_charge":"No","has_accepted_license":"1","day":"01"},{"author":[{"orcid":"0000−0003−2936−5719","id":"4B3207F6-F248-11E8-B48F-1D18A9856A87","last_name":"Garcia Soto","first_name":"Miriam","full_name":"Garcia Soto, Miriam"},{"full_name":"Prabhakar, Pavithra","last_name":"Prabhakar","first_name":"Pavithra"}],"volume":36,"date_updated":"2023-08-17T14:32:54Z","date_created":"2020-02-02T23:00:59Z","year":"2020","department":[{"_id":"ToHe"}],"publisher":"Elsevier","publication_status":"published","file_date_updated":"2022-05-16T22:30:04Z","article_number":"100856","doi":"10.1016/j.nahs.2020.100856","language":[{"iso":"eng"}],"tmp":{"name":"Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)","legal_code_url":"https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode","short":"CC BY-NC-ND (4.0)","image":"/images/cc_by_nc_nd.png"},"oa":1,"external_id":{"isi":["000528828600003"]},"project":[{"_id":"25863FF4-B435-11E9-9278-68D0E5697425","grant_number":"S11407","call_identifier":"FWF","name":"Game Theory"},{"name":"The Wittgenstein Prize","call_identifier":"FWF","_id":"25F42A32-B435-11E9-9278-68D0E5697425","grant_number":"Z211"}],"quality_controlled":"1","isi":1,"publication_identifier":{"issn":["1751-570X"]},"month":"05","file":[{"file_name":"2020_NAHS_GarciaSoto.pdf","access_level":"open_access","creator":"dernst","file_size":818774,"content_type":"application/pdf","file_id":"8688","embargo":"2022-05-15","relation":"main_file","date_created":"2020-10-21T13:16:45Z","date_updated":"2022-05-16T22:30:04Z","checksum":"560abfddb53f9fe921b6744f59f2cfaa"}],"oa_version":"Submitted Version","user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","_id":"7426","intvolume":" 36","title":"Abstraction based verification of stability of polyhedral switched systems","status":"public","ddc":["000"],"issue":"5","abstract":[{"text":"This paper presents a novel abstraction technique for analyzing Lyapunov and asymptotic stability of polyhedral switched systems. A polyhedral switched system is a hybrid system in which the continuous dynamics is specified by polyhedral differential inclusions, the invariants and guards are specified by polyhedral sets and the switching between the modes do not involve reset of variables. A finite state weighted graph abstracting the polyhedral switched system is constructed from a finite partition of the state–space, such that the satisfaction of certain graph conditions, such as the absence of cycles with product of weights on the edges greater than (or equal) to 1, implies the stability of the system. However, the graph is in general conservative and hence, the violation of the graph conditions does not imply instability. If the analysis fails to establish stability due to the conservativeness in the approximation, a counterexample (cycle with product of edge weights greater than or equal to 1) indicating a potential reason for the failure is returned. Further, a more precise approximation of the switched system can be constructed by considering a finer partition of the state–space in the construction of the finite weighted graph. We present experimental results on analyzing stability of switched systems using the above method.","lang":"eng"}],"type":"journal_article","date_published":"2020-05-01T00:00:00Z","citation":{"short":"M. Garcia Soto, P. Prabhakar, Nonlinear Analysis: Hybrid Systems 36 (2020).","mla":"Garcia Soto, Miriam, and Pavithra Prabhakar. “Abstraction Based Verification of Stability of Polyhedral Switched Systems.” Nonlinear Analysis: Hybrid Systems, vol. 36, no. 5, 100856, Elsevier, 2020, doi:10.1016/j.nahs.2020.100856.","chicago":"Garcia Soto, Miriam, and Pavithra Prabhakar. “Abstraction Based Verification of Stability of Polyhedral Switched Systems.” Nonlinear Analysis: Hybrid Systems. Elsevier, 2020. https://doi.org/10.1016/j.nahs.2020.100856.","ama":"Garcia Soto M, Prabhakar P. Abstraction based verification of stability of polyhedral switched systems. Nonlinear Analysis: Hybrid Systems. 2020;36(5). doi:10.1016/j.nahs.2020.100856","ieee":"M. Garcia Soto and P. Prabhakar, “Abstraction based verification of stability of polyhedral switched systems,” Nonlinear Analysis: Hybrid Systems, vol. 36, no. 5. Elsevier, 2020.","apa":"Garcia Soto, M., & Prabhakar, P. (2020). Abstraction based verification of stability of polyhedral switched systems. Nonlinear Analysis: Hybrid Systems. Elsevier. https://doi.org/10.1016/j.nahs.2020.100856","ista":"Garcia Soto M, Prabhakar P. 2020. Abstraction based verification of stability of polyhedral switched systems. Nonlinear Analysis: Hybrid Systems. 36(5), 100856."},"publication":"Nonlinear Analysis: Hybrid Systems","article_type":"original","has_accepted_license":"1","article_processing_charge":"No","day":"01","scopus_import":"1"},{"alternative_title":["EPiC Series in Computing"],"type":"conference","abstract":[{"lang":"eng","text":"This report presents the results of a friendly competition for formal verification of continuous and hybrid systems with piecewise constant dynamics. The friendly competition took place as part of the workshop Applied Verification for Continuous and Hybrid Systems (ARCH) in 2019. In this third edition, six tools have been applied to solve five different benchmark problems in the category for piecewise constant dynamics: BACH, Lyse, Hy- COMP, PHAVer/SX, PHAVerLite, and VeriSiMPL. Compared to last year, a new tool has participated (HyCOMP) and PHAVerLite has replaced PHAVer-lite. The result is a snap- shot of the current landscape of tools and the types of benchmarks they are particularly suited for. Due to the diversity of problems, we are not ranking tools, yet the presented results probably provide the most complete assessment of tools for the safety verification of continuous and hybrid systems with piecewise constant dynamics up to this date."}],"intvolume":" 61","title":"ARCH-COMP19 Category Report: Hybrid systems with piecewise constant dynamics","ddc":["000"],"status":"public","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","_id":"10877","file":[{"checksum":"4b92e333db7b4e2349501a804dfede69","success":1,"date_updated":"2022-05-17T06:55:49Z","date_created":"2022-05-17T06:55:49Z","relation":"main_file","file_id":"11391","file_size":346415,"content_type":"application/pdf","creator":"dernst","access_level":"open_access","file_name":"2019_EPiCs_Frehse.pdf"}],"oa_version":"Published Version","scopus_import":"1","article_processing_charge":"No","has_accepted_license":"1","day":"25","page":"1-13","citation":{"ista":"Frehse G, Abate A, Adzkiya D, Becchi A, Bu L, Cimatti A, Giacobbe M, Griggio A, Mover S, Mufid MS, Riouak I, Tonetta S, Zaffanella E. 2019. ARCH-COMP19 Category Report: Hybrid systems with piecewise constant dynamics. ARCH19. 6th International Workshop on Applied Verification of Continuous and Hybrid Systems. ARCH: International Workshop on Applied Verification on Continuous and Hybrid Systems, EPiC Series in Computing, vol. 61, 1–13.","apa":"Frehse, G., Abate, A., Adzkiya, D., Becchi, A., Bu, L., Cimatti, A., … Zaffanella, E. (2019). ARCH-COMP19 Category Report: Hybrid systems with piecewise constant dynamics. In G. Frehse & M. Althoff (Eds.), ARCH19. 6th International Workshop on Applied Verification of Continuous and Hybrid Systems (Vol. 61, pp. 1–13). Montreal, Canada: EasyChair. https://doi.org/10.29007/rjwn","ieee":"G. Frehse et al., “ARCH-COMP19 Category Report: Hybrid systems with piecewise constant dynamics,” in ARCH19. 6th International Workshop on Applied Verification of Continuous and Hybrid Systems, Montreal, Canada, 2019, vol. 61, pp. 1–13.","ama":"Frehse G, Abate A, Adzkiya D, et al. ARCH-COMP19 Category Report: Hybrid systems with piecewise constant dynamics. In: Frehse G, Althoff M, eds. ARCH19. 6th International Workshop on Applied Verification of Continuous and Hybrid Systems. Vol 61. EasyChair; 2019:1-13. doi:10.29007/rjwn","chicago":"Frehse, Goran, Alessandro Abate, Dieky Adzkiya, Anna Becchi, Lei Bu, Alessandro Cimatti, Mirco Giacobbe, et al. “ARCH-COMP19 Category Report: Hybrid Systems with Piecewise Constant Dynamics.” In ARCH19. 6th International Workshop on Applied Verification of Continuous and Hybrid Systems, edited by Goran Frehse and Matthias Althoff, 61:1–13. EasyChair, 2019. https://doi.org/10.29007/rjwn.","mla":"Frehse, Goran, et al. “ARCH-COMP19 Category Report: Hybrid Systems with Piecewise Constant Dynamics.” ARCH19. 6th International Workshop on Applied Verification of Continuous and Hybrid Systems, edited by Goran Frehse and Matthias Althoff, vol. 61, EasyChair, 2019, pp. 1–13, doi:10.29007/rjwn.","short":"G. Frehse, A. Abate, D. Adzkiya, A. Becchi, L. Bu, A. Cimatti, M. Giacobbe, A. Griggio, S. Mover, M.S. Mufid, I. Riouak, S. Tonetta, E. Zaffanella, in:, G. Frehse, M. Althoff (Eds.), ARCH19. 6th International Workshop on Applied Verification of Continuous and Hybrid Systems, EasyChair, 2019, pp. 1–13."},"publication":"ARCH19. 6th International Workshop on Applied Verification of Continuous and Hybrid Systems","date_published":"2019-05-25T00:00:00Z","file_date_updated":"2022-05-17T06:55:49Z","editor":[{"last_name":"Frehse","first_name":"Goran","full_name":"Frehse, Goran"},{"full_name":"Althoff, Matthias","first_name":"Matthias","last_name":"Althoff"}],"publisher":"EasyChair","department":[{"_id":"ToHe"}],"publication_status":"published","year":"2019","acknowledgement":"The authors gratefully acknowledge \fnancial support by the European Commission project\r\nUnCoVerCPS under grant number 643921. Lei Bu is supported by the National Natural Science\r\nFoundation of China (No.61572249).","volume":61,"date_updated":"2022-05-17T07:09:47Z","date_created":"2022-03-18T12:29:23Z","author":[{"full_name":"Frehse, Goran","first_name":"Goran","last_name":"Frehse"},{"last_name":"Abate","first_name":"Alessandro","full_name":"Abate, Alessandro"},{"first_name":"Dieky","last_name":"Adzkiya","full_name":"Adzkiya, Dieky"},{"full_name":"Becchi, Anna","last_name":"Becchi","first_name":"Anna"},{"last_name":"Bu","first_name":"Lei","full_name":"Bu, Lei"},{"full_name":"Cimatti, Alessandro","last_name":"Cimatti","first_name":"Alessandro"},{"full_name":"Giacobbe, Mirco","id":"3444EA5E-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0001-8180-0904","first_name":"Mirco","last_name":"Giacobbe"},{"first_name":"Alberto","last_name":"Griggio","full_name":"Griggio, Alberto"},{"last_name":"Mover","first_name":"Sergio","full_name":"Mover, Sergio"},{"full_name":"Mufid, Muhammad Syifa'ul","first_name":"Muhammad Syifa'ul","last_name":"Mufid"},{"full_name":"Riouak, Idriss","first_name":"Idriss","last_name":"Riouak"},{"last_name":"Tonetta","first_name":"Stefano","full_name":"Tonetta, Stefano"},{"last_name":"Zaffanella","first_name":"Enea","full_name":"Zaffanella, Enea"}],"publication_identifier":{"issn":["2398-7340"]},"month":"05","quality_controlled":"1","oa":1,"language":[{"iso":"eng"}],"doi":"10.29007/rjwn","conference":{"end_date":"2019-04-15","start_date":"2019-04-15","location":"Montreal, Canada","name":"ARCH: International Workshop on Applied Verification on Continuous and Hybrid Systems"}},{"conference":{"name":"ICC 2019 - Indian Control Conference","start_date":"2019-01-09","location":"Delhi, India","end_date":"2019-01-11"},"doi":"10.1109/INDIANCC.2019.8715598","language":[{"iso":"eng"}],"oa":1,"quality_controlled":"1","project":[{"grant_number":"S 11407_N23","_id":"25832EC2-B435-11E9-9278-68D0E5697425","name":"Rigorous Systems Engineering","call_identifier":"FWF"},{"name":"The Wittgenstein Prize","call_identifier":"FWF","_id":"25F42A32-B435-11E9-9278-68D0E5697425","grant_number":"Z211"}],"month":"05","publication_identifier":{"isbn":["978-153866246-5"]},"author":[{"last_name":"Kundu","first_name":"Atreyee","full_name":"Kundu, Atreyee"},{"first_name":"Miriam","last_name":"Garcia Soto","id":"4B3207F6-F248-11E8-B48F-1D18A9856A87","orcid":"0000−0003−2936−5719","full_name":"Garcia Soto, Miriam"},{"last_name":"Prabhakar","first_name":"Pavithra","full_name":"Prabhakar, Pavithra"}],"date_updated":"2021-01-12T08:08:01Z","date_created":"2019-06-17T06:57:33Z","year":"2019","publication_status":"published","department":[{"_id":"ToHe"}],"publisher":"IEEE","file_date_updated":"2020-10-21T13:13:49Z","article_number":"8715598","date_published":"2019-05-16T00:00:00Z","publication":"5th Indian Control Conference Proceedings","citation":{"ista":"Kundu A, Garcia Soto M, Prabhakar P. 2019. Formal synthesis of stabilizing controllers for periodically controlled linear switched systems. 5th Indian Control Conference Proceedings. ICC 2019 - Indian Control Conference, 8715598.","apa":"Kundu, A., Garcia Soto, M., & Prabhakar, P. (2019). Formal synthesis of stabilizing controllers for periodically controlled linear switched systems. In 5th Indian Control Conference Proceedings. Delhi, India: IEEE. https://doi.org/10.1109/INDIANCC.2019.8715598","ieee":"A. Kundu, M. Garcia Soto, and P. Prabhakar, “Formal synthesis of stabilizing controllers for periodically controlled linear switched systems,” in 5th Indian Control Conference Proceedings, Delhi, India, 2019.","ama":"Kundu A, Garcia Soto M, Prabhakar P. Formal synthesis of stabilizing controllers for periodically controlled linear switched systems. In: 5th Indian Control Conference Proceedings. IEEE; 2019. doi:10.1109/INDIANCC.2019.8715598","chicago":"Kundu, Atreyee, Miriam Garcia Soto, and Pavithra Prabhakar. “Formal Synthesis of Stabilizing Controllers for Periodically Controlled Linear Switched Systems.” In 5th Indian Control Conference Proceedings. IEEE, 2019. https://doi.org/10.1109/INDIANCC.2019.8715598.","mla":"Kundu, Atreyee, et al. “Formal Synthesis of Stabilizing Controllers for Periodically Controlled Linear Switched Systems.” 5th Indian Control Conference Proceedings, 8715598, IEEE, 2019, doi:10.1109/INDIANCC.2019.8715598.","short":"A. Kundu, M. Garcia Soto, P. Prabhakar, in:, 5th Indian Control Conference Proceedings, IEEE, 2019."},"day":"16","article_processing_charge":"No","has_accepted_license":"1","scopus_import":"1","file":[{"access_level":"open_access","file_name":"2019_ICC_Kundu.pdf","creator":"dernst","file_size":396031,"content_type":"application/pdf","file_id":"8687","relation":"main_file","success":1,"checksum":"d622a91af1e427f6b1e0ba8e18a2b767","date_updated":"2020-10-21T13:13:49Z","date_created":"2020-10-21T13:13:49Z"}],"oa_version":"Submitted Version","_id":"6565","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","title":"Formal synthesis of stabilizing controllers for periodically controlled linear switched systems","ddc":["000"],"status":"public","abstract":[{"text":"In this paper, we address the problem of synthesizing periodic switching controllers for stabilizing a family of linear systems. Our broad approach consists of constructing a finite game graph based on the family of linear systems such that every winning strategy on the game graph corresponds to a stabilizing switching controller for the family of linear systems. The construction of a (finite) game graph, the synthesis of a winning strategy and the extraction of a stabilizing controller are all computationally feasible. We illustrate our method on an example.","lang":"eng"}],"type":"conference"},{"year":"2019","publication_status":"published","publisher":"Springer","department":[{"_id":"ToHe"}],"author":[{"orcid":"0000-0001-5588-8287","id":"463C8BC2-F248-11E8-B48F-1D18A9856A87","last_name":"Avni","first_name":"Guy","full_name":"Avni, Guy"},{"full_name":"Henzinger, Thomas A","last_name":"Henzinger","first_name":"Thomas A","orcid":"0000−0002−2985−7724","id":"40876CD8-F248-11E8-B48F-1D18A9856A87"},{"full_name":"Ibsen-Jensen, Rasmus","first_name":"Rasmus","last_name":"Ibsen-Jensen","id":"3B699956-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0003-4783-0389"},{"first_name":"Petr","last_name":"Novotny","full_name":"Novotny, Petr"}],"date_created":"2019-08-19T07:58:10Z","date_updated":"2021-01-12T08:09:12Z","volume":11674,"file_date_updated":"2020-07-14T12:47:41Z","oa":1,"quality_controlled":"1","project":[{"name":"Formal Methods meets Algorithmic Game Theory","call_identifier":"FWF","grant_number":"M02369","_id":"264B3912-B435-11E9-9278-68D0E5697425"},{"name":"Rigorous Systems Engineering","call_identifier":"FWF","_id":"25F2ACDE-B435-11E9-9278-68D0E5697425","grant_number":"S11402-N23"},{"grant_number":"Z211","_id":"25F42A32-B435-11E9-9278-68D0E5697425","name":"The Wittgenstein Prize","call_identifier":"FWF"}],"conference":{"name":"RP: Reachability Problems","start_date":"2019-09-11","location":"Brussels, Belgium","end_date":"2019-09-13"},"doi":"10.1007/978-3-030-30806-3_1","language":[{"iso":"eng"}],"month":"09","publication_identifier":{"issn":["0302-9743"],"isbn":["978-303030805-6"]},"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","_id":"6822","title":"Bidding games on Markov decision processes","ddc":["000"],"status":"public","intvolume":" 11674","file":[{"file_name":"prob.pdf","access_level":"open_access","creator":"gavni","file_size":436635,"content_type":"application/pdf","file_id":"6823","relation":"main_file","date_created":"2019-08-19T07:56:40Z","date_updated":"2020-07-14T12:47:41Z","checksum":"45ebbc709af2b247d28c7c293c01504b"}],"oa_version":"Submitted Version","type":"conference","alternative_title":["LNCS"],"abstract":[{"text":"In two-player games on graphs, the players move a token through a graph to produce an infinite path, which determines the qualitative winner or quantitative payoff of the game. In bidding games, in each turn, we hold an auction between the two players to determine which player moves the token. Bidding games have largely been studied with concrete bidding mechanisms that are variants of a first-price auction: in each turn both players simultaneously submit bids, the higher\r\nbidder moves the token, and pays his bid to the lower bidder in Richman bidding, to the bank in poorman bidding, and in taxman bidding, the bid is split between the other player and the bank according to a predefined constant factor. Bidding games are deterministic games. They have an intriguing connection with a fragment of stochastic games called \r\n randomturn games. We study, for the first time, a combination of bidding games with probabilistic behavior; namely, we study bidding games that are played on Markov decision processes, where the players bid for the right to choose the next action, which determines the probability distribution according to which the next vertex is chosen. We study parity and meanpayoff bidding games on MDPs and extend results from the deterministic bidding setting to the probabilistic one.","lang":"eng"}],"publication":" Proceedings of the 13th International Conference of Reachability Problems","citation":{"ama":"Avni G, Henzinger TA, Ibsen-Jensen R, Novotny P. Bidding games on Markov decision processes. In: Proceedings of the 13th International Conference of Reachability Problems. Vol 11674. Springer; 2019:1-12. doi:10.1007/978-3-030-30806-3_1","ista":"Avni G, Henzinger TA, Ibsen-Jensen R, Novotny P. 2019. Bidding games on Markov decision processes. Proceedings of the 13th International Conference of Reachability Problems. RP: Reachability Problems, LNCS, vol. 11674, 1–12.","apa":"Avni, G., Henzinger, T. A., Ibsen-Jensen, R., & Novotny, P. (2019). Bidding games on Markov decision processes. In Proceedings of the 13th International Conference of Reachability Problems (Vol. 11674, pp. 1–12). Brussels, Belgium: Springer. https://doi.org/10.1007/978-3-030-30806-3_1","ieee":"G. Avni, T. A. Henzinger, R. Ibsen-Jensen, and P. Novotny, “Bidding games on Markov decision processes,” in Proceedings of the 13th International Conference of Reachability Problems, Brussels, Belgium, 2019, vol. 11674, pp. 1–12.","mla":"Avni, Guy, et al. “Bidding Games on Markov Decision Processes.” Proceedings of the 13th International Conference of Reachability Problems, vol. 11674, Springer, 2019, pp. 1–12, doi:10.1007/978-3-030-30806-3_1.","short":"G. Avni, T.A. Henzinger, R. Ibsen-Jensen, P. Novotny, in:, Proceedings of the 13th International Conference of Reachability Problems, Springer, 2019, pp. 1–12.","chicago":"Avni, Guy, Thomas A Henzinger, Rasmus Ibsen-Jensen, and Petr Novotny. “Bidding Games on Markov Decision Processes.” In Proceedings of the 13th International Conference of Reachability Problems, 11674:1–12. Springer, 2019. https://doi.org/10.1007/978-3-030-30806-3_1."},"page":"1-12","date_published":"2019-09-06T00:00:00Z","scopus_import":1,"day":"06","has_accepted_license":"1"},{"oa_version":"Submitted Version","file":[{"file_name":"2019_ICRA_Lechner.pdf","access_level":"open_access","creator":"dernst","content_type":"application/pdf","file_size":3265107,"file_id":"8636","relation":"main_file","date_created":"2020-10-08T17:30:38Z","date_updated":"2020-10-08T17:30:38Z","success":1,"checksum":"f5545a6b60c3ffd01feb3613f81d03b6"}],"user_id":"D865714E-FA4E-11E9-B85B-F5C5E5697425","_id":"6888","ddc":["000"],"title":"Designing worm-inspired neural networks for interpretable robotic control","status":"public","abstract":[{"lang":"eng","text":"In this paper, we design novel liquid time-constant recurrent neural networks for robotic control, inspired by the brain of the nematode, C. elegans. In the worm's nervous system, neurons communicate through nonlinear time-varying synaptic links established amongst them by their particular wiring structure. This property enables neurons to express liquid time-constants dynamics and therefore allows the network to originate complex behaviors with a small number of neurons. We identify neuron-pair communication motifs as design operators and use them to configure compact neuronal network structures to govern sequential robotic tasks. The networks are systematically designed to map the environmental observations to motor actions, by their hierarchical topology from sensory neurons, through recurrently-wired interneurons, to motor neurons. The networks are then parametrized in a supervised-learning scheme by a search-based algorithm. We demonstrate that obtained networks realize interpretable dynamics. We evaluate their performance in controlling mobile and arm robots, and compare their attributes to other artificial neural network-based control agents. Finally, we experimentally show their superior resilience to environmental noise, compared to the existing machine learning-based methods."}],"type":"conference","alternative_title":["ICRA"],"date_published":"2019-05-01T00:00:00Z","publication":"Proceedings - IEEE International Conference on Robotics and Automation","citation":{"ama":"Lechner M, Hasani R, Zimmer M, Henzinger TA, Grosu R. Designing worm-inspired neural networks for interpretable robotic control. In: Proceedings - IEEE International Conference on Robotics and Automation. Vol 2019-May. IEEE; 2019. doi:10.1109/icra.2019.8793840","ista":"Lechner M, Hasani R, Zimmer M, Henzinger TA, Grosu R. 2019. Designing worm-inspired neural networks for interpretable robotic control. Proceedings - IEEE International Conference on Robotics and Automation. ICRA: International Conference on Robotics and Automation, ICRA, vol. 2019–May, 8793840.","ieee":"M. Lechner, R. Hasani, M. Zimmer, T. A. Henzinger, and R. Grosu, “Designing worm-inspired neural networks for interpretable robotic control,” in Proceedings - IEEE International Conference on Robotics and Automation, Montreal, QC, Canada, 2019, vol. 2019–May.","apa":"Lechner, M., Hasani, R., Zimmer, M., Henzinger, T. A., & Grosu, R. (2019). Designing worm-inspired neural networks for interpretable robotic control. In Proceedings - IEEE International Conference on Robotics and Automation (Vol. 2019–May). Montreal, QC, Canada: IEEE. https://doi.org/10.1109/icra.2019.8793840","mla":"Lechner, Mathias, et al. “Designing Worm-Inspired Neural Networks for Interpretable Robotic Control.” Proceedings - IEEE International Conference on Robotics and Automation, vol. 2019–May, 8793840, IEEE, 2019, doi:10.1109/icra.2019.8793840.","short":"M. Lechner, R. Hasani, M. Zimmer, T.A. Henzinger, R. Grosu, in:, Proceedings - IEEE International Conference on Robotics and Automation, IEEE, 2019.","chicago":"Lechner, Mathias, Ramin Hasani, Manuel Zimmer, Thomas A Henzinger, and Radu Grosu. “Designing Worm-Inspired Neural Networks for Interpretable Robotic Control.” In Proceedings - IEEE International Conference on Robotics and Automation, Vol. 2019–May. IEEE, 2019. https://doi.org/10.1109/icra.2019.8793840."},"day":"01","article_processing_charge":"No","has_accepted_license":"1","scopus_import":"1","author":[{"first_name":"Mathias","last_name":"Lechner","id":"3DC22916-F248-11E8-B48F-1D18A9856A87","full_name":"Lechner, Mathias"},{"first_name":"Ramin","last_name":"Hasani","full_name":"Hasani, Ramin"},{"first_name":"Manuel","last_name":"Zimmer","full_name":"Zimmer, Manuel"},{"full_name":"Henzinger, Thomas A","last_name":"Henzinger","first_name":"Thomas A","orcid":"0000−0002−2985−7724","id":"40876CD8-F248-11E8-B48F-1D18A9856A87"},{"last_name":"Grosu","first_name":"Radu","full_name":"Grosu, Radu"}],"date_updated":"2021-01-12T08:09:28Z","date_created":"2019-09-18T08:09:51Z","volume":"2019-May","year":"2019","publication_status":"published","department":[{"_id":"ToHe"}],"publisher":"IEEE","file_date_updated":"2020-10-08T17:30:38Z","article_number":"8793840","conference":{"start_date":"2019-05-20","location":"Montreal, QC, Canada","end_date":"2019-05-24","name":"ICRA: International Conference on Robotics and Automation"},"doi":"10.1109/icra.2019.8793840","language":[{"iso":"eng"}],"oa":1,"quality_controlled":"1","project":[{"_id":"25F42A32-B435-11E9-9278-68D0E5697425","grant_number":"Z211","call_identifier":"FWF","name":"The Wittgenstein Prize"}],"month":"05","publication_identifier":{"isbn":["9781538660270"]}},{"scopus_import":"1","day":"01","has_accepted_license":"1","article_processing_charge":"No","citation":{"chicago":"Aghajohari, Milad, Guy Avni, and Thomas A Henzinger. “Determinacy in Discrete-Bidding Infinite-Duration Games,” Vol. 140. Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2019. https://doi.org/10.4230/LIPICS.CONCUR.2019.20.","short":"M. Aghajohari, G. Avni, T.A. Henzinger, in:, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2019.","mla":"Aghajohari, Milad, et al. Determinacy in Discrete-Bidding Infinite-Duration Games. Vol. 140, 20, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2019, doi:10.4230/LIPICS.CONCUR.2019.20.","ieee":"M. Aghajohari, G. Avni, and T. A. Henzinger, “Determinacy in discrete-bidding infinite-duration games,” presented at the CONCUR: International Conference on Concurrency Theory, Amsterdam, Netherlands, 2019, vol. 140.","apa":"Aghajohari, M., Avni, G., & Henzinger, T. A. (2019). Determinacy in discrete-bidding infinite-duration games (Vol. 140). Presented at the CONCUR: International Conference on Concurrency Theory, Amsterdam, Netherlands: Schloss Dagstuhl - Leibniz-Zentrum für Informatik. https://doi.org/10.4230/LIPICS.CONCUR.2019.20","ista":"Aghajohari M, Avni G, Henzinger TA. 2019. Determinacy in discrete-bidding infinite-duration games. CONCUR: International Conference on Concurrency Theory, LIPIcs, vol. 140, 20.","ama":"Aghajohari M, Avni G, Henzinger TA. Determinacy in discrete-bidding infinite-duration games. In: Vol 140. Schloss Dagstuhl - Leibniz-Zentrum für Informatik; 2019. doi:10.4230/LIPICS.CONCUR.2019.20"},"date_published":"2019-08-01T00:00:00Z","alternative_title":["LIPIcs"],"type":"conference","abstract":[{"lang":"eng","text":"In two-player games on graphs, the players move a token through a graph to produce an infinite path, which determines the winner of the game. Such games are central in formal methods since they model the interaction between a non-terminating system and its environment. In bidding games the players bid for the right to move the token: in each round, the players simultaneously submit bids, and the higher bidder moves the token and pays the other player. Bidding games are known to have a clean and elegant mathematical structure that relies on the ability of the players to submit arbitrarily small bids. Many applications, however, require a fixed granularity for the bids, which can represent, for example, the monetary value expressed in cents. We study, for the first time, the combination of discrete-bidding and infinite-duration games. Our most important result proves that these games form a large determined subclass of concurrent games, where determinacy is the strong property that there always exists exactly one player who can guarantee winning the game. In particular, we show that, in contrast to non-discrete bidding games, the mechanism with which tied bids are resolved plays an important role in discrete-bidding games. We study several natural tie-breaking mechanisms and show that, while some do not admit determinacy, most natural mechanisms imply determinacy for every pair of initial budgets. "}],"ddc":["000"],"title":"Determinacy in discrete-bidding infinite-duration games","status":"public","intvolume":" 140","_id":"6886","user_id":"8b945eb4-e2f2-11eb-945a-df72226e66a9","oa_version":"Published Version","file":[{"date_created":"2019-09-27T12:21:38Z","date_updated":"2020-07-14T12:47:43Z","checksum":"4df6d3575c506edb17215adada03cc8e","relation":"main_file","file_id":"6915","content_type":"application/pdf","file_size":741425,"creator":"kschuh","file_name":"2019_LIPIcs_Aghajohari.pdf","access_level":"open_access"}],"month":"08","quality_controlled":"1","project":[{"grant_number":"S11402-N23","_id":"25F2ACDE-B435-11E9-9278-68D0E5697425","name":"Rigorous Systems Engineering","call_identifier":"FWF"},{"grant_number":"M02369","_id":"264B3912-B435-11E9-9278-68D0E5697425","name":"Formal Methods meets Algorithmic Game Theory","call_identifier":"FWF"}],"tmp":{"legal_code_url":"https://creativecommons.org/licenses/by/3.0/legalcode","name":"Creative Commons Attribution 3.0 Unported (CC BY 3.0)","short":"CC BY (3.0)","image":"/images/cc_by.png"},"oa":1,"external_id":{"arxiv":["1905.03588"]},"language":[{"iso":"eng"}],"conference":{"name":"CONCUR: International Conference on Concurrency Theory","end_date":"2019-08-30","start_date":"2019-08-27","location":"Amsterdam, Netherlands"},"doi":"10.4230/LIPICS.CONCUR.2019.20","article_number":"20","file_date_updated":"2020-07-14T12:47:43Z","publication_status":"published","department":[{"_id":"ToHe"}],"publisher":"Schloss Dagstuhl - Leibniz-Zentrum für Informatik","year":"2019","date_updated":"2022-01-26T08:27:10Z","date_created":"2019-09-18T08:06:58Z","volume":140,"author":[{"last_name":"Aghajohari","first_name":"Milad","full_name":"Aghajohari, Milad"},{"id":"463C8BC2-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0001-5588-8287","first_name":"Guy","last_name":"Avni","full_name":"Avni, Guy"},{"full_name":"Henzinger, Thomas A","first_name":"Thomas A","last_name":"Henzinger","id":"40876CD8-F248-11E8-B48F-1D18A9856A87","orcid":"0000−0002−2985−7724"}]},{"month":"08","quality_controlled":"1","project":[{"call_identifier":"FWF","name":"Game Theory","_id":"25863FF4-B435-11E9-9278-68D0E5697425","grant_number":"S11407"},{"grant_number":"S11402-N23","_id":"25F2ACDE-B435-11E9-9278-68D0E5697425","name":"Rigorous Systems Engineering","call_identifier":"FWF"}],"tmp":{"name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","short":"CC BY (4.0)","image":"/images/cc_by.png"},"oa":1,"language":[{"iso":"eng"}],"conference":{"name":"CONCUR: International Conference on Concurrency Theory","start_date":"2019-08-27","location":"Amsterdam, Netherlands","end_date":"2019-08-30"},"doi":"10.4230/LIPICS.CONCUR.2019.27","article_number":"27","file_date_updated":"2020-07-14T12:47:43Z","publication_status":"published","publisher":"Schloss Dagstuhl - Leibniz-Zentrum für Informatik","department":[{"_id":"ToHe"},{"_id":"KrCh"}],"year":"2019","date_created":"2019-09-18T08:06:14Z","date_updated":"2021-01-12T08:09:27Z","volume":140,"author":[{"full_name":"Chatterjee, Krishnendu","last_name":"Chatterjee","first_name":"Krishnendu","orcid":"0000-0002-4561-241X","id":"2E5DCA20-F248-11E8-B48F-1D18A9856A87"},{"full_name":"Henzinger, Thomas A","first_name":"Thomas A","last_name":"Henzinger","id":"40876CD8-F248-11E8-B48F-1D18A9856A87","orcid":"0000−0002−2985−7724"},{"full_name":"Otop, Jan","first_name":"Jan","last_name":"Otop"}],"scopus_import":1,"day":"01","has_accepted_license":"1","citation":{"ama":"Chatterjee K, Henzinger TA, Otop J. Long-run average behavior of vector addition systems with states. In: Vol 140. Schloss Dagstuhl - Leibniz-Zentrum für Informatik; 2019. doi:10.4230/LIPICS.CONCUR.2019.27","ista":"Chatterjee K, Henzinger TA, Otop J. 2019. Long-run average behavior of vector addition systems with states. CONCUR: International Conference on Concurrency Theory, LIPIcs, vol. 140, 27.","apa":"Chatterjee, K., Henzinger, T. A., & Otop, J. (2019). Long-run average behavior of vector addition systems with states (Vol. 140). Presented at the CONCUR: International Conference on Concurrency Theory, Amsterdam, Netherlands: Schloss Dagstuhl - Leibniz-Zentrum für Informatik. https://doi.org/10.4230/LIPICS.CONCUR.2019.27","ieee":"K. Chatterjee, T. A. Henzinger, and J. Otop, “Long-run average behavior of vector addition systems with states,” presented at the CONCUR: International Conference on Concurrency Theory, Amsterdam, Netherlands, 2019, vol. 140.","mla":"Chatterjee, Krishnendu, et al. Long-Run Average Behavior of Vector Addition Systems with States. Vol. 140, 27, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2019, doi:10.4230/LIPICS.CONCUR.2019.27.","short":"K. Chatterjee, T.A. Henzinger, J. Otop, in:, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2019.","chicago":"Chatterjee, Krishnendu, Thomas A Henzinger, and Jan Otop. “Long-Run Average Behavior of Vector Addition Systems with States,” Vol. 140. Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2019. https://doi.org/10.4230/LIPICS.CONCUR.2019.27."},"date_published":"2019-08-01T00:00:00Z","alternative_title":["LIPIcs"],"type":"conference","abstract":[{"lang":"eng","text":"A vector addition system with states (VASS) consists of a finite set of states and counters. A configuration is a state and a value for each counter; a transition changes the state and each counter is incremented, decremented, or left unchanged. While qualitative properties such as state and configuration reachability have been studied for VASS, we consider the long-run average cost of infinite computations of VASS. The cost of a configuration is for each state, a linear combination of the counter values. In the special case of uniform cost functions, the linear combination is the same for all states. The (regular) long-run emptiness problem is, given a VASS, a cost function, and a threshold value, if there is a (lasso-shaped) computation such that the long-run average value of the cost function does not exceed the threshold. For uniform cost functions, we show that the regular long-run emptiness problem is (a) decidable in polynomial time for integer-valued VASS, and (b) decidable but nonelementarily hard for natural-valued VASS (i.e., nonnegative counters). For general cost functions, we show that the problem is (c) NP-complete for integer-valued VASS, and (d) undecidable for natural-valued VASS. Our most interesting result is for (c) integer-valued VASS with general cost functions, where we establish a connection between the regular long-run emptiness problem and quadratic Diophantine inequalities. The general (nonregular) long-run emptiness problem is equally hard as the regular problem in all cases except (c), where it remains open. "}],"ddc":["000"],"title":"Long-run average behavior of vector addition systems with states","status":"public","intvolume":" 140","_id":"6885","user_id":"3E5EF7F0-F248-11E8-B48F-1D18A9856A87","oa_version":"Published Version","file":[{"access_level":"open_access","file_name":"2019_LIPIcs_Chatterjee.pdf","file_size":538120,"content_type":"application/pdf","creator":"kschuh","relation":"main_file","file_id":"6914","checksum":"4985e26e1572d1575d64d38acabd71d6","date_created":"2019-09-27T12:09:35Z","date_updated":"2020-07-14T12:47:43Z"}]},{"conference":{"end_date":"2019-07-19","start_date":"2019-07-14","location":"Budapest, Hungary","name":"IJCNN: International Joint Conference on Neural Networks"},"date_published":"2019-09-30T00:00:00Z","doi":"10.1109/ijcnn.2019.8851954","language":[{"iso":"eng"}],"publication":"Proceedings of the International Joint Conference on Neural Networks","external_id":{"arxiv":["1809.03864"]},"citation":{"chicago":"Hasani, Ramin, Alexander Amini, Mathias Lechner, Felix Naser, Radu Grosu, and Daniela Rus. “Response Characterization for Auditing Cell Dynamics in Long Short-Term Memory Networks.” In Proceedings of the International Joint Conference on Neural Networks. IEEE, 2019. https://doi.org/10.1109/ijcnn.2019.8851954.","short":"R. Hasani, A. Amini, M. Lechner, F. Naser, R. Grosu, D. Rus, in:, Proceedings of the International Joint Conference on Neural Networks, IEEE, 2019.","mla":"Hasani, Ramin, et al. “Response Characterization for Auditing Cell Dynamics in Long Short-Term Memory Networks.” Proceedings of the International Joint Conference on Neural Networks, 8851954, IEEE, 2019, doi:10.1109/ijcnn.2019.8851954.","apa":"Hasani, R., Amini, A., Lechner, M., Naser, F., Grosu, R., & Rus, D. (2019). Response characterization for auditing cell dynamics in long short-term memory networks. In Proceedings of the International Joint Conference on Neural Networks. Budapest, Hungary: IEEE. https://doi.org/10.1109/ijcnn.2019.8851954","ieee":"R. Hasani, A. Amini, M. Lechner, F. Naser, R. Grosu, and D. Rus, “Response characterization for auditing cell dynamics in long short-term memory networks,” in Proceedings of the International Joint Conference on Neural Networks, Budapest, Hungary, 2019.","ista":"Hasani R, Amini A, Lechner M, Naser F, Grosu R, Rus D. 2019. Response characterization for auditing cell dynamics in long short-term memory networks. Proceedings of the International Joint Conference on Neural Networks. IJCNN: International Joint Conference on Neural Networks, 8851954.","ama":"Hasani R, Amini A, Lechner M, Naser F, Grosu R, Rus D. Response characterization for auditing cell dynamics in long short-term memory networks. In: Proceedings of the International Joint Conference on Neural Networks. IEEE; 2019. doi:10.1109/ijcnn.2019.8851954"},"oa":1,"main_file_link":[{"open_access":"1","url":"https://arxiv.org/abs/1809.03864"}],"quality_controlled":"1","day":"30","month":"09","publication_identifier":{"isbn":["9781728119854"]},"scopus_import":1,"author":[{"full_name":"Hasani, Ramin","last_name":"Hasani","first_name":"Ramin"},{"first_name":"Alexander","last_name":"Amini","full_name":"Amini, Alexander"},{"id":"3DC22916-F248-11E8-B48F-1D18A9856A87","first_name":"Mathias","last_name":"Lechner","full_name":"Lechner, Mathias"},{"first_name":"Felix","last_name":"Naser","full_name":"Naser, Felix"},{"full_name":"Grosu, Radu","first_name":"Radu","last_name":"Grosu"},{"first_name":"Daniela","last_name":"Rus","full_name":"Rus, Daniela"}],"date_created":"2019-11-04T15:59:58Z","date_updated":"2021-01-12T08:11:19Z","oa_version":"Preprint","year":"2019","_id":"6985","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","status":"public","title":"Response characterization for auditing cell dynamics in long short-term memory networks","publication_status":"published","publisher":"IEEE","department":[{"_id":"ToHe"}],"abstract":[{"text":"In this paper, we introduce a novel method to interpret recurrent neural networks (RNNs), particularly long short-term memory networks (LSTMs) at the cellular level. We propose a systematic pipeline for interpreting individual hidden state dynamics within the network using response characterization methods. The ranked contribution of individual cells to the network's output is computed by analyzing a set of interpretable metrics of their decoupled step and sinusoidal responses. As a result, our method is able to uniquely identify neurons with insightful dynamics, quantify relationships between dynamical properties and test accuracy through ablation analysis, and interpret the impact of network capacity on a network's dynamical distribution. Finally, we demonstrate the generalizability and scalability of our method by evaluating a series of different benchmark sequential datasets.","lang":"eng"}],"article_number":"8851954","type":"conference"},{"month":"10","publication_identifier":{"eisbn":["9783319919089"],"issn":["1611-3349"],"isbn":["9783319919072"],"eissn":["0302-9743"]},"doi":"10.1007/978-3-319-91908-9_22","language":[{"iso":"eng"}],"main_file_link":[{"open_access":"1","url":"https://doi.org/10.1007/978-3-319-91908-9_22"}],"oa":1,"quality_controlled":"1","project":[{"call_identifier":"FWF","name":"Rigorous Systems Engineering","grant_number":"S11402-N23","_id":"25F2ACDE-B435-11E9-9278-68D0E5697425"},{"call_identifier":"FWF","name":"The Wittgenstein Prize","grant_number":"Z211","_id":"25F42A32-B435-11E9-9278-68D0E5697425"}],"author":[{"full_name":"Alur, Rajeev","first_name":"Rajeev","last_name":"Alur"},{"last_name":"Giacobbe","first_name":"Mirco","orcid":"0000-0001-8180-0904","id":"3444EA5E-F248-11E8-B48F-1D18A9856A87","full_name":"Giacobbe, Mirco"},{"full_name":"Henzinger, Thomas A","last_name":"Henzinger","first_name":"Thomas A","orcid":"0000−0002−2985−7724","id":"40876CD8-F248-11E8-B48F-1D18A9856A87"},{"first_name":"Kim G.","last_name":"Larsen","full_name":"Larsen, Kim G."},{"last_name":"Mikučionis","first_name":"Marius","full_name":"Mikučionis, Marius"}],"date_created":"2020-02-05T10:51:44Z","date_updated":"2022-09-06T08:25:52Z","volume":10000,"acknowledgement":"This research was supported in part by the Austrian Science Fund (FWF) under grants S11402-N23(RiSE/SHiNE) and Z211-N23 (Wittgenstein Award). This research has received funding from the Sino-Danish Basic Research Centre, IDEA4CPS, funded by the Danish National Research Foundation and the National Science Foundation, China, the Innovation Fund Denmark centre DiCyPS, as well as the ERC Advanced Grant LASSO.","year":"2019","publication_status":"published","department":[{"_id":"ToHe"}],"publisher":"Springer Nature","editor":[{"last_name":"Steffen","first_name":"Bernhard","full_name":"Steffen, Bernhard"},{"full_name":"Woeginger, Gerhard","last_name":"Woeginger","first_name":"Gerhard"}],"day":"05","article_processing_charge":"No","scopus_import":"1","series_title":"LNCS","date_published":"2019-10-05T00:00:00Z","publication":"Computing and Software Science","citation":{"mla":"Alur, Rajeev, et al. “Continuous-Time Models for System Design and Analysis.” Computing and Software Science, edited by Bernhard Steffen and Gerhard Woeginger, vol. 10000, Springer Nature, 2019, pp. 452–77, doi:10.1007/978-3-319-91908-9_22.","short":"R. Alur, M. Giacobbe, T.A. Henzinger, K.G. Larsen, M. Mikučionis, in:, B. Steffen, G. Woeginger (Eds.), Computing and Software Science, Springer Nature, 2019, pp. 452–477.","chicago":"Alur, Rajeev, Mirco Giacobbe, Thomas A Henzinger, Kim G. Larsen, and Marius Mikučionis. “Continuous-Time Models for System Design and Analysis.” In Computing and Software Science, edited by Bernhard Steffen and Gerhard Woeginger, 10000:452–77. LNCS. Springer Nature, 2019. https://doi.org/10.1007/978-3-319-91908-9_22.","ama":"Alur R, Giacobbe M, Henzinger TA, Larsen KG, Mikučionis M. Continuous-time models for system design and analysis. In: Steffen B, Woeginger G, eds. Computing and Software Science. Vol 10000. LNCS. Springer Nature; 2019:452-477. doi:10.1007/978-3-319-91908-9_22","ista":"Alur R, Giacobbe M, Henzinger TA, Larsen KG, Mikučionis M. 2019.Continuous-time models for system design and analysis. In: Computing and Software Science. Lecture Notes in Computer Science, vol. 10000, 452–477.","apa":"Alur, R., Giacobbe, M., Henzinger, T. A., Larsen, K. G., & Mikučionis, M. (2019). Continuous-time models for system design and analysis. In B. Steffen & G. Woeginger (Eds.), Computing and Software Science (Vol. 10000, pp. 452–477). Springer Nature. https://doi.org/10.1007/978-3-319-91908-9_22","ieee":"R. Alur, M. Giacobbe, T. A. Henzinger, K. G. Larsen, and M. Mikučionis, “Continuous-time models for system design and analysis,” in Computing and Software Science, vol. 10000, B. Steffen and G. Woeginger, Eds. Springer Nature, 2019, pp. 452–477."},"page":"452-477","abstract":[{"text":"We illustrate the ingredients of the state-of-the-art of model-based approach for the formal design and verification of cyber-physical systems. To capture the interaction between a discrete controller and its continuously evolving environment, we use the formal models of timed and hybrid automata. We explain the steps of modeling and verification in the tools Uppaal and SpaceEx using a case study based on a dual-chamber implantable pacemaker monitoring a human heart. We show how to design a model as a composition of components, how to construct models at varying levels of detail, how to establish that one model is an abstraction of another, how to specify correctness requirements using temporal logic, and how to verify that a model satisfies a logical requirement.","lang":"eng"}],"type":"book_chapter","alternative_title":["Lecture Notes in Computer Science"],"oa_version":"Published Version","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","_id":"7453","title":"Continuous-time models for system design and analysis","status":"public","intvolume":" 10000"},{"date_published":"2019-05-25T00:00:00Z","page":"41-61","publication":"EPiC Series in Computing","citation":{"chicago":"Immler, Fabian, Matthias Althoff, Luis Benet, Alexandre Chapoutot, Xin Chen, Marcelo Forets, Luca Geretti, Niklas Kochdumper, David P. Sanders, and Christian Schilling. “ARCH-COMP19 Category Report: Continuous and Hybrid Systems with Nonlinear Dynamics.” In EPiC Series in Computing, 61:41–61. EasyChair Publications, 2019. https://doi.org/10.29007/m75b.","mla":"Immler, Fabian, et al. “ARCH-COMP19 Category Report: Continuous and Hybrid Systems with Nonlinear Dynamics.” EPiC Series in Computing, vol. 61, EasyChair Publications, 2019, pp. 41–61, doi:10.29007/m75b.","short":"F. Immler, M. Althoff, L. Benet, A. Chapoutot, X. Chen, M. Forets, L. Geretti, N. Kochdumper, D.P. Sanders, C. Schilling, in:, EPiC Series in Computing, EasyChair Publications, 2019, pp. 41–61.","ista":"Immler F, Althoff M, Benet L, Chapoutot A, Chen X, Forets M, Geretti L, Kochdumper N, Sanders DP, Schilling C. 2019. ARCH-COMP19 Category Report: Continuous and hybrid systems with nonlinear dynamics. EPiC Series in Computing. ARCH: International Workshop on Applied Verification on Continuous and Hybrid Systems vol. 61, 41–61.","apa":"Immler, F., Althoff, M., Benet, L., Chapoutot, A., Chen, X., Forets, M., … Schilling, C. (2019). ARCH-COMP19 Category Report: Continuous and hybrid systems with nonlinear dynamics. In EPiC Series in Computing (Vol. 61, pp. 41–61). Montreal, Canada: EasyChair Publications. https://doi.org/10.29007/m75b","ieee":"F. Immler et al., “ARCH-COMP19 Category Report: Continuous and hybrid systems with nonlinear dynamics,” in EPiC Series in Computing, Montreal, Canada, 2019, vol. 61, pp. 41–61.","ama":"Immler F, Althoff M, Benet L, et al. ARCH-COMP19 Category Report: Continuous and hybrid systems with nonlinear dynamics. In: EPiC Series in Computing. Vol 61. EasyChair Publications; 2019:41-61. doi:10.29007/m75b"},"day":"25","article_processing_charge":"No","has_accepted_license":"1","scopus_import":1,"oa_version":"Published Version","file":[{"creator":"dernst","file_size":1934830,"content_type":"application/pdf","access_level":"open_access","file_name":"2019_ARCH19_Immler.pdf","checksum":"9138977a06fcd6a95976eb4bca875f0c","date_created":"2020-03-24T07:36:36Z","date_updated":"2020-07-14T12:48:00Z","file_id":"7617","relation":"main_file"}],"title":"ARCH-COMP19 Category Report: Continuous and hybrid systems with nonlinear dynamics","ddc":["000"],"status":"public","intvolume":" 61","_id":"7576","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","abstract":[{"text":"We present the results of a friendly competition for formal verification of continuous and hybrid systems with nonlinear continuous dynamics. The friendly competition took place as part of the workshop Applied Verification for Continuous and Hybrid Systems (ARCH) in 2019. In this year, 6 tools Ariadne, CORA, DynIbex, Flow*, Isabelle/HOL, and JuliaReach (in alphabetic order) participated. They are applied to solve reachability analysis problems on four benchmark problems, one of them with hybrid dynamics. We do not rank the tools based on the results, but show the current status and discover the potential advantages of different tools.","lang":"eng"}],"type":"conference","language":[{"iso":"eng"}],"conference":{"location":"Montreal, Canada","start_date":"2019-04-15","end_date":"2019-04-15","name":"ARCH: International Workshop on Applied Verification on Continuous and Hybrid Systems"},"doi":"10.29007/m75b","quality_controlled":"1","oa":1,"month":"05","publication_identifier":{"eissn":["23987340"]},"date_updated":"2021-01-12T08:14:17Z","date_created":"2020-03-08T23:00:49Z","volume":61,"author":[{"full_name":"Immler, Fabian","first_name":"Fabian","last_name":"Immler"},{"first_name":"Matthias","last_name":"Althoff","full_name":"Althoff, Matthias"},{"full_name":"Benet, Luis","last_name":"Benet","first_name":"Luis"},{"full_name":"Chapoutot, Alexandre","first_name":"Alexandre","last_name":"Chapoutot"},{"full_name":"Chen, Xin","last_name":"Chen","first_name":"Xin"},{"full_name":"Forets, Marcelo","first_name":"Marcelo","last_name":"Forets"},{"first_name":"Luca","last_name":"Geretti","full_name":"Geretti, Luca"},{"first_name":"Niklas","last_name":"Kochdumper","full_name":"Kochdumper, Niklas"},{"full_name":"Sanders, David P.","first_name":"David P.","last_name":"Sanders"},{"full_name":"Schilling, Christian","first_name":"Christian","last_name":"Schilling","id":"3A2F4DCE-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0003-3658-1065"}],"publication_status":"published","department":[{"_id":"ToHe"}],"publisher":"EasyChair Publications","year":"2019","file_date_updated":"2020-07-14T12:48:00Z"},{"language":[{"iso":"eng"}],"date_published":"2019-05-25T00:00:00Z","doi":"10.29007/bj1w","conference":{"name":"ARCH: International Workshop on Applied Verification on Continuous and Hybrid Systems","location":"Montreal, Canada","start_date":"2019-04-15","end_date":"2019-04-15"},"page":"14-40","quality_controlled":"1","citation":{"mla":"Althoff, Matthias, et al. “ARCH-COMP19 Category Report: Continuous and Hybrid Systems with Linear Continuous Dynamics.” EPiC Series in Computing, vol. 61, EasyChair, 2019, pp. 14–40, doi:10.29007/bj1w.","short":"M. Althoff, S. Bak, M. Forets, G. Frehse, N. Kochdumper, R. Ray, C. Schilling, S. Schupp, in:, EPiC Series in Computing, EasyChair, 2019, pp. 14–40.","chicago":"Althoff, Matthias, Stanley Bak, Marcelo Forets, Goran Frehse, Niklas Kochdumper, Rajarshi Ray, Christian Schilling, and Stefan Schupp. “ARCH-COMP19 Category Report: Continuous and Hybrid Systems with Linear Continuous Dynamics.” In EPiC Series in Computing, 61:14–40. EasyChair, 2019. https://doi.org/10.29007/bj1w.","ama":"Althoff M, Bak S, Forets M, et al. ARCH-COMP19 Category Report: Continuous and hybrid systems with linear continuous dynamics. In: EPiC Series in Computing. Vol 61. EasyChair; 2019:14-40. doi:10.29007/bj1w","ista":"Althoff M, Bak S, Forets M, Frehse G, Kochdumper N, Ray R, Schilling C, Schupp S. 2019. ARCH-COMP19 Category Report: Continuous and hybrid systems with linear continuous dynamics. EPiC Series in Computing. ARCH: International Workshop on Applied Verification on Continuous and Hybrid Systems vol. 61, 14–40.","ieee":"M. Althoff et al., “ARCH-COMP19 Category Report: Continuous and hybrid systems with linear continuous dynamics,” in EPiC Series in Computing, Montreal, Canada, 2019, vol. 61, pp. 14–40.","apa":"Althoff, M., Bak, S., Forets, M., Frehse, G., Kochdumper, N., Ray, R., … Schupp, S. (2019). ARCH-COMP19 Category Report: Continuous and hybrid systems with linear continuous dynamics. In EPiC Series in Computing (Vol. 61, pp. 14–40). Montreal, Canada: EasyChair. https://doi.org/10.29007/bj1w"},"main_file_link":[{"url":"https://easychair.org/publications/open/1gbP","open_access":"1"}],"oa":1,"publication":"EPiC Series in Computing","publication_identifier":{"eissn":["23987340"]},"article_processing_charge":"No","day":"25","month":"05","oa_version":"Published Version","volume":61,"date_created":"2020-09-26T14:23:54Z","date_updated":"2021-01-12T08:20:05Z","author":[{"last_name":"Althoff","first_name":"Matthias","full_name":"Althoff, Matthias"},{"full_name":"Bak, Stanley","first_name":"Stanley","last_name":"Bak"},{"full_name":"Forets, Marcelo","last_name":"Forets","first_name":"Marcelo"},{"full_name":"Frehse, Goran","last_name":"Frehse","first_name":"Goran"},{"first_name":"Niklas","last_name":"Kochdumper","full_name":"Kochdumper, Niklas"},{"last_name":"Ray","first_name":"Rajarshi","full_name":"Ray, Rajarshi"},{"full_name":"Schilling, Christian","first_name":"Christian","last_name":"Schilling","id":"3A2F4DCE-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0003-3658-1065"},{"full_name":"Schupp, Stefan","last_name":"Schupp","first_name":"Stefan"}],"department":[{"_id":"ToHe"}],"intvolume":" 61","publisher":"EasyChair","publication_status":"published","status":"public","title":"ARCH-COMP19 Category Report: Continuous and hybrid systems with linear continuous dynamics","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","_id":"8570","year":"2019","abstract":[{"text":"This report presents the results of a friendly competition for formal verification of continuous and hybrid systems with linear continuous dynamics. The friendly competition took place as part of the workshop Applied Verification for Continuous and Hybrid Systems (ARCH) in 2019. In its third edition, seven tools have been applied to solve six different benchmark problems in the category for linear continuous dynamics (in alphabetical order): CORA, CORA/SX, HyDRA, Hylaa, JuliaReach, SpaceEx, and XSpeed. This report is a snapshot of the current landscape of tools and the types of benchmarks they are particularly suited for. Due to the diversity of problems, we are not ranking tools, yet the presented results provide one of the most complete assessments of tools for the safety verification of continuous and hybrid systems with linear continuous dynamics up to this date.","lang":"eng"}],"type":"conference"},{"abstract":[{"text":"In two-player games on graphs, the players move a token through a graph to produce a finite or infinite path, which determines the qualitative winner or quantitative payoff of the game. We study bidding games in which the players bid for the right to move the token. Several bidding rules were studied previously. In Richman bidding, in each round, the players simultaneously submit bids, and the higher bidder moves the token and pays the other player. Poorman bidding is similar except that the winner of the bidding pays the \"bank\" rather than the other player. Taxman bidding spans the spectrum between Richman and poorman bidding. They are parameterized by a constant tau in [0,1]: portion tau of the winning bid is paid to the other player, and portion 1-tau to the bank. While finite-duration (reachability) taxman games have been studied before, we present, for the first time, results on infinite-duration taxman games. It was previously shown that both Richman and poorman infinite-duration games with qualitative objectives reduce to reachability games, and we show a similar result here. Our most interesting results concern quantitative taxman games, namely mean-payoff games, where poorman and Richman bidding differ significantly. A central quantity in these games is the ratio between the two players' initial budgets. While in poorman mean-payoff games, the optimal payoff of a player depends on the initial ratio, in Richman bidding, the payoff depends only on the structure of the game. In both games the optimal payoffs can be found using (different) probabilistic connections with random-turn games in which in each turn, instead of bidding, a coin is tossed to determine which player moves. While the value with Richman bidding equals the value of a random-turn game with an un-biased coin, with poorman bidding, the bias in the coin is the initial ratio of the budgets. We give a complete classification of mean-payoff taxman games that is based on a probabilistic connection: the value of a taxman bidding game with parameter tau and initial ratio r, equals the value of a random-turn game that uses a coin with bias F(tau, r) = (r+tau * (1-r))/(1+tau). Thus, we show that Richman bidding is the exception; namely, for every tau <1, the value of the game depends on the initial ratio. Our proof technique simplifies and unifies the previous proof techniques for both Richman and poorman bidding. ","lang":"eng"}],"alternative_title":["LIPIcs"],"type":"conference","file":[{"date_updated":"2020-07-14T12:47:42Z","date_created":"2019-09-27T11:45:15Z","checksum":"6346e116a4f4ed1414174d96d2c4fbd7","relation":"main_file","file_id":"6913","file_size":554457,"content_type":"application/pdf","creator":"kschuh","file_name":"2019_LIPIcs_Avni.pdf","access_level":"open_access"}],"oa_version":"Published Version","intvolume":" 138","status":"public","title":"Bidding mechanisms in graph games","ddc":["004"],"_id":"6884","user_id":"3E5EF7F0-F248-11E8-B48F-1D18A9856A87","has_accepted_license":"1","day":"01","scopus_import":1,"date_published":"2019-08-01T00:00:00Z","citation":{"mla":"Avni, Guy, et al. Bidding Mechanisms in Graph Games. Vol. 138, 11, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2019, doi:10.4230/LIPICS.MFCS.2019.11.","short":"G. Avni, T.A. Henzinger, D. Zikelic, in:, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2019.","chicago":"Avni, Guy, Thomas A Henzinger, and Dorde Zikelic. “Bidding Mechanisms in Graph Games,” Vol. 138. Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2019. https://doi.org/10.4230/LIPICS.MFCS.2019.11.","ama":"Avni G, Henzinger TA, Zikelic D. Bidding mechanisms in graph games. In: Vol 138. Schloss Dagstuhl - Leibniz-Zentrum für Informatik; 2019. doi:10.4230/LIPICS.MFCS.2019.11","ista":"Avni G, Henzinger TA, Zikelic D. 2019. Bidding mechanisms in graph games. MFCS: nternational Symposium on Mathematical Foundations of Computer Science, LIPIcs, vol. 138, 11.","ieee":"G. Avni, T. A. Henzinger, and D. Zikelic, “Bidding mechanisms in graph games,” presented at the MFCS: nternational Symposium on Mathematical Foundations of Computer Science, Aachen, Germany, 2019, vol. 138.","apa":"Avni, G., Henzinger, T. A., & Zikelic, D. (2019). Bidding mechanisms in graph games (Vol. 138). Presented at the MFCS: nternational Symposium on Mathematical Foundations of Computer Science, Aachen, Germany: Schloss Dagstuhl - Leibniz-Zentrum für Informatik. https://doi.org/10.4230/LIPICS.MFCS.2019.11"},"ec_funded":1,"file_date_updated":"2020-07-14T12:47:42Z","article_number":"11","volume":138,"date_updated":"2023-08-07T14:08:34Z","date_created":"2019-09-18T08:04:26Z","related_material":{"record":[{"id":"9239","relation":"later_version","status":"public"}]},"author":[{"orcid":"0000-0001-5588-8287","id":"463C8BC2-F248-11E8-B48F-1D18A9856A87","last_name":"Avni","first_name":"Guy","full_name":"Avni, Guy"},{"last_name":"Henzinger","first_name":"Thomas A","orcid":"0000−0002−2985−7724","id":"40876CD8-F248-11E8-B48F-1D18A9856A87","full_name":"Henzinger, Thomas A"},{"first_name":"Dorde","last_name":"Zikelic","id":"294AA7A6-F248-11E8-B48F-1D18A9856A87","full_name":"Zikelic, Dorde"}],"publisher":"Schloss Dagstuhl - Leibniz-Zentrum für Informatik","department":[{"_id":"ToHe"},{"_id":"KrCh"}],"publication_status":"published","year":"2019","month":"08","language":[{"iso":"eng"}],"doi":"10.4230/LIPICS.MFCS.2019.11","conference":{"name":"MFCS: nternational Symposium on Mathematical Foundations of Computer Science","start_date":"2019-08-26","location":"Aachen, Germany","end_date":"2019-08-30"},"project":[{"name":"International IST Doctoral Program","call_identifier":"H2020","_id":"2564DBCA-B435-11E9-9278-68D0E5697425","grant_number":"665385"},{"name":"Formal Methods meets Algorithmic Game Theory","call_identifier":"FWF","_id":"264B3912-B435-11E9-9278-68D0E5697425","grant_number":"M02369"},{"grant_number":"Z211","_id":"25F42A32-B435-11E9-9278-68D0E5697425","call_identifier":"FWF","name":"The Wittgenstein Prize"},{"call_identifier":"FWF","name":"Rigorous Systems Engineering","grant_number":"S11402-N23","_id":"25F2ACDE-B435-11E9-9278-68D0E5697425"}],"quality_controlled":"1","oa":1,"tmp":{"name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","short":"CC BY (4.0)","image":"/images/cc_by.png"},"external_id":{"arxiv":["1905.03835"]}},{"author":[{"last_name":"Christakis","first_name":"Maria","full_name":"Christakis, Maria"},{"full_name":"Heizmann, Matthias","first_name":"Matthias","last_name":"Heizmann"},{"full_name":"Mansur, Muhammad Numair","last_name":"Mansur","first_name":"Muhammad Numair"},{"full_name":"Schilling, Christian","last_name":"Schilling","first_name":"Christian","orcid":"0000-0003-3658-1065","id":"3A2F4DCE-F248-11E8-B48F-1D18A9856A87"},{"full_name":"Wüstholz, Valentin","last_name":"Wüstholz","first_name":"Valentin"}],"volume":11427,"date_updated":"2023-08-24T14:47:45Z","date_created":"2019-02-18T16:44:06Z","year":"2019","publisher":"Springer Nature","department":[{"_id":"ToHe"}],"publication_status":"published","ec_funded":1,"file_date_updated":"2020-07-14T12:47:17Z","doi":"10.1007/978-3-030-17462-0_13","conference":{"location":"Prague, Czech Republic","start_date":"2019-04-06","end_date":"2019-04-11","name":"TACAS: Tools and Algorithms for the Construction and Analysis of Systems"},"language":[{"iso":"eng"}],"oa":1,"tmp":{"name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","short":"CC BY (4.0)","image":"/images/cc_by.png"},"external_id":{"isi":["000681166500013"]},"project":[{"_id":"260C2330-B435-11E9-9278-68D0E5697425","grant_number":"754411","call_identifier":"H2020","name":"ISTplus - Postdoctoral Fellowships"},{"grant_number":"Z211","_id":"25F42A32-B435-11E9-9278-68D0E5697425","call_identifier":"FWF","name":"The Wittgenstein Prize"},{"call_identifier":"FWF","name":"Rigorous Systems Engineering","grant_number":"S 11407_N23","_id":"25832EC2-B435-11E9-9278-68D0E5697425"}],"quality_controlled":"1","isi":1,"month":"04","file":[{"date_created":"2019-05-10T14:16:05Z","date_updated":"2020-07-14T12:47:17Z","checksum":"9998496f6fe202c0a19124b4209154c6","relation":"main_file","file_id":"6408","content_type":"application/pdf","file_size":773083,"creator":"dernst","file_name":"2019_LNCS_Christakis.pdf","access_level":"open_access"}],"oa_version":"Published Version","_id":"6042","user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","intvolume":" 11427","status":"public","title":"Semantic fault localization and suspiciousness ranking","ddc":["000"],"abstract":[{"text":"Static program analyzers are increasingly effective in checking correctness properties of programs and reporting any errors found, often in the form of error traces. However, developers still spend a significant amount of time on debugging. This involves processing long error traces in an effort to localize a bug to a relatively small part of the program and to identify its cause. In this paper, we present a technique for automated fault localization that, given a program and an error trace, efficiently narrows down the cause of the error to a few statements. These statements are then ranked in terms of their suspiciousness. Our technique relies only on the semantics of the given program and does not require any test cases or user guidance. In experiments on a set of C benchmarks, we show that our technique is effective in quickly isolating the cause of error while out-performing other state-of-the-art fault-localization techniques.","lang":"eng"}],"type":"conference","alternative_title":["LNCS"],"date_published":"2019-04-04T00:00:00Z","citation":{"chicago":"Christakis, Maria, Matthias Heizmann, Muhammad Numair Mansur, Christian Schilling, and Valentin Wüstholz. “Semantic Fault Localization and Suspiciousness Ranking.” In 25th International Conference on Tools and Algorithms for the Construction and Analysis of Systems , 11427:226–43. Springer Nature, 2019. https://doi.org/10.1007/978-3-030-17462-0_13.","short":"M. Christakis, M. Heizmann, M.N. Mansur, C. Schilling, V. Wüstholz, in:, 25th International Conference on Tools and Algorithms for the Construction and Analysis of Systems , Springer Nature, 2019, pp. 226–243.","mla":"Christakis, Maria, et al. “Semantic Fault Localization and Suspiciousness Ranking.” 25th International Conference on Tools and Algorithms for the Construction and Analysis of Systems , vol. 11427, Springer Nature, 2019, pp. 226–43, doi:10.1007/978-3-030-17462-0_13.","apa":"Christakis, M., Heizmann, M., Mansur, M. N., Schilling, C., & Wüstholz, V. (2019). Semantic fault localization and suspiciousness ranking. In 25th International Conference on Tools and Algorithms for the Construction and Analysis of Systems (Vol. 11427, pp. 226–243). Prague, Czech Republic: Springer Nature. https://doi.org/10.1007/978-3-030-17462-0_13","ieee":"M. Christakis, M. Heizmann, M. N. Mansur, C. Schilling, and V. Wüstholz, “Semantic fault localization and suspiciousness ranking,” in 25th International Conference on Tools and Algorithms for the Construction and Analysis of Systems , Prague, Czech Republic, 2019, vol. 11427, pp. 226–243.","ista":"Christakis M, Heizmann M, Mansur MN, Schilling C, Wüstholz V. 2019. Semantic fault localization and suspiciousness ranking. 25th International Conference on Tools and Algorithms for the Construction and Analysis of Systems . TACAS: Tools and Algorithms for the Construction and Analysis of Systems, LNCS, vol. 11427, 226–243.","ama":"Christakis M, Heizmann M, Mansur MN, Schilling C, Wüstholz V. Semantic fault localization and suspiciousness ranking. In: 25th International Conference on Tools and Algorithms for the Construction and Analysis of Systems . Vol 11427. Springer Nature; 2019:226-243. doi:10.1007/978-3-030-17462-0_13"},"publication":"25th International Conference on Tools and Algorithms for the Construction and Analysis of Systems ","page":"226-243","article_processing_charge":"No","has_accepted_license":"1","day":"04","scopus_import":"1"},{"keyword":["reachability analysis","hybrid systems","lazy computation"],"scopus_import":"1","article_processing_charge":"No","has_accepted_license":"1","day":"16","page":"39-44","citation":{"chicago":"Bogomolov, Sergiy, Marcelo Forets, Goran Frehse, Kostiantyn Potomkin, and Christian Schilling. “JuliaReach: A Toolbox for Set-Based Reachability.” In Proceedings of the 22nd International Conference on Hybrid Systems: Computation and Control, 22:39–44. ACM, 2019. https://doi.org/10.1145/3302504.3311804.","mla":"Bogomolov, Sergiy, et al. “JuliaReach: A Toolbox for Set-Based Reachability.” Proceedings of the 22nd International Conference on Hybrid Systems: Computation and Control, vol. 22, ACM, 2019, pp. 39–44, doi:10.1145/3302504.3311804.","short":"S. Bogomolov, M. Forets, G. Frehse, K. Potomkin, C. Schilling, in:, Proceedings of the 22nd International Conference on Hybrid Systems: Computation and Control, ACM, 2019, pp. 39–44.","ista":"Bogomolov S, Forets M, Frehse G, Potomkin K, Schilling C. 2019. JuliaReach: A toolbox for set-based reachability. Proceedings of the 22nd International Conference on Hybrid Systems: Computation and Control. HSCC: Hybrid Systems Computation and Control vol. 22, 39–44.","apa":"Bogomolov, S., Forets, M., Frehse, G., Potomkin, K., & Schilling, C. (2019). JuliaReach: A toolbox for set-based reachability. In Proceedings of the 22nd International Conference on Hybrid Systems: Computation and Control (Vol. 22, pp. 39–44). Montreal, QC, Canada: ACM. https://doi.org/10.1145/3302504.3311804","ieee":"S. Bogomolov, M. Forets, G. Frehse, K. Potomkin, and C. Schilling, “JuliaReach: A toolbox for set-based reachability,” in Proceedings of the 22nd International Conference on Hybrid Systems: Computation and Control, Montreal, QC, Canada, 2019, vol. 22, pp. 39–44.","ama":"Bogomolov S, Forets M, Frehse G, Potomkin K, Schilling C. JuliaReach: A toolbox for set-based reachability. In: Proceedings of the 22nd International Conference on Hybrid Systems: Computation and Control. Vol 22. ACM; 2019:39-44. doi:10.1145/3302504.3311804"},"publication":"Proceedings of the 22nd International Conference on Hybrid Systems: Computation and Control","date_published":"2019-04-16T00:00:00Z","type":"conference","abstract":[{"text":"We present JuliaReach, a toolbox for set-based reachability analysis of dynamical systems. JuliaReach consists of two main packages: Reachability, containing implementations of reachability algorithms for continuous and hybrid systems, and LazySets, a standalone library that implements state-of-the-art algorithms for calculus with convex sets. The library offers both concrete and lazy set representations, where the latter stands for the ability to delay set computations until they are needed. The choice of the programming language Julia and the accompanying documentation of our toolbox allow researchers to easily translate set-based algorithms from mathematics to software in a platform-independent way, while achieving runtime performance that is comparable to statically compiled languages. Combining lazy operations in high dimensions and explicit computations in low dimensions, JuliaReach can be applied to solve complex, large-scale problems.","lang":"eng"}],"intvolume":" 22","ddc":["000"],"status":"public","title":"JuliaReach: A toolbox for set-based reachability","user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","_id":"6035","oa_version":"Submitted Version","file":[{"creator":"cschilli","content_type":"application/pdf","file_size":3784414,"access_level":"open_access","file_name":"hscc19.pdf","checksum":"28ed56439aea5991c3122d4730fd828f","date_updated":"2020-07-14T12:47:17Z","date_created":"2019-03-05T09:27:18Z","file_id":"6067","relation":"main_file"}],"publication_identifier":{"isbn":["9781450362825"]},"month":"04","project":[{"name":"The Wittgenstein Prize","call_identifier":"FWF","grant_number":"Z211","_id":"25F42A32-B435-11E9-9278-68D0E5697425"},{"grant_number":"S 11407_N23","_id":"25832EC2-B435-11E9-9278-68D0E5697425","call_identifier":"FWF","name":"Rigorous Systems Engineering"},{"call_identifier":"H2020","name":"ISTplus - Postdoctoral Fellowships","_id":"260C2330-B435-11E9-9278-68D0E5697425","grant_number":"754411"}],"quality_controlled":"1","isi":1,"external_id":{"isi":["000516713900005"],"arxiv":["1901.10736"]},"oa":1,"language":[{"iso":"eng"}],"doi":"10.1145/3302504.3311804","conference":{"name":"HSCC: Hybrid Systems Computation and Control","end_date":"2019-04-18","location":"Montreal, QC, Canada","start_date":"2019-04-16"},"ec_funded":1,"file_date_updated":"2020-07-14T12:47:17Z","department":[{"_id":"ToHe"}],"publisher":"ACM","publication_status":"published","year":"2019","volume":22,"date_updated":"2023-08-24T14:47:21Z","date_created":"2019-02-18T14:43:28Z","author":[{"first_name":"Sergiy","last_name":"Bogomolov","id":"369D9A44-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0002-0686-0365","full_name":"Bogomolov, Sergiy"},{"full_name":"Forets, Marcelo","first_name":"Marcelo","last_name":"Forets"},{"last_name":"Frehse","first_name":"Goran","full_name":"Frehse, Goran"},{"full_name":"Potomkin, Kostiantyn","last_name":"Potomkin","first_name":"Kostiantyn"},{"full_name":"Schilling, Christian","first_name":"Christian","last_name":"Schilling","id":"3A2F4DCE-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0003-3658-1065"}]},{"file_date_updated":"2020-10-08T17:25:45Z","author":[{"orcid":"0000-0001-5199-3143","id":"40960E6E-F248-11E8-B48F-1D18A9856A87","last_name":"Ferrere","first_name":"Thomas","full_name":"Ferrere, Thomas"},{"full_name":"Nickovic, Dejan","id":"41BCEE5C-F248-11E8-B48F-1D18A9856A87","first_name":"Dejan","last_name":"Nickovic"},{"last_name":"Donzé","first_name":"Alexandre","full_name":"Donzé, Alexandre"},{"full_name":"Ito, Hisahiro","last_name":"Ito","first_name":"Hisahiro"},{"full_name":"Kapinski, James","last_name":"Kapinski","first_name":"James"}],"date_updated":"2023-08-25T10:19:23Z","date_created":"2019-05-13T08:13:46Z","year":"2019","publisher":"ACM","department":[{"_id":"ToHe"}],"publication_status":"published","publication_identifier":{"isbn":["9781450362825"]},"month":"04","doi":"10.1145/3302504.3311800","conference":{"name":"HSCC: Hybrid Systems Computation and Control","start_date":"2019-04-16","location":"Montreal, Canada","end_date":"2019-04-18"},"language":[{"iso":"eng"}],"oa":1,"external_id":{"isi":["000516713900007"]},"project":[{"grant_number":"S 11407_N23","_id":"25832EC2-B435-11E9-9278-68D0E5697425","name":"Rigorous Systems Engineering","call_identifier":"FWF"},{"grant_number":"Z211","_id":"25F42A32-B435-11E9-9278-68D0E5697425","call_identifier":"FWF","name":"The Wittgenstein Prize"}],"isi":1,"quality_controlled":"1","abstract":[{"lang":"eng","text":"Safety and security are major concerns in the development of Cyber-Physical Systems (CPS). Signal temporal logic (STL) was proposedas a language to specify and monitor the correctness of CPS relativeto formalized requirements. Incorporating STL into a developmentprocess enables designers to automatically monitor and diagnosetraces, compute robustness estimates based on requirements, andperform requirement falsification, leading to productivity gains inverification and validation activities; however, in its current formSTL is agnostic to the input/output classification of signals, andthis negatively impacts the relevance of the analysis results.In this paper we propose to make the interface explicit in theSTL language by introducing input/output signal declarations. Wethen define new measures of input vacuity and output robustnessthat better reflect the nature of the system and the specification in-tent. The resulting framework, which we call interface-aware signaltemporal logic (IA-STL), aids verification and validation activities.We demonstrate the benefits of IA-STL on several CPS analysisactivities: (1) robustness-driven sensitivity analysis, (2) falsificationand (3) fault localization. We describe an implementation of our en-hancement to STL and associated notions of robustness and vacuityin a prototype extension of Breach, a MATLAB®/Simulink®toolboxfor CPS verification and validation. We explore these methodologi-cal improvements and evaluate our results on two examples fromthe automotive domain: a benchmark powertrain control systemand a hydrogen fuel cell system."}],"type":"conference","file":[{"file_name":"2019_ACM_Ferrere.pdf","access_level":"open_access","creator":"dernst","file_size":1055421,"content_type":"application/pdf","file_id":"8633","relation":"main_file","date_created":"2020-10-08T17:25:45Z","date_updated":"2020-10-08T17:25:45Z","success":1,"checksum":"b8e967081e051d1c55ca5d18fb187890"}],"oa_version":"Submitted Version","_id":"6428","user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","status":"public","ddc":["000"],"title":"Interface-aware signal temporal logic","article_processing_charge":"No","has_accepted_license":"1","day":"16","scopus_import":"1","date_published":"2019-04-16T00:00:00Z","citation":{"short":"T. Ferrere, D. Nickovic, A. Donzé, H. Ito, J. Kapinski, in:, Proceedings of the 2019 22nd ACM International Conference on Hybrid Systems: Computation and Control, ACM, 2019, pp. 57–66.","mla":"Ferrere, Thomas, et al. “Interface-Aware Signal Temporal Logic.” Proceedings of the 2019 22nd ACM International Conference on Hybrid Systems: Computation and Control, ACM, 2019, pp. 57–66, doi:10.1145/3302504.3311800.","chicago":"Ferrere, Thomas, Dejan Nickovic, Alexandre Donzé, Hisahiro Ito, and James Kapinski. “Interface-Aware Signal Temporal Logic.” In Proceedings of the 2019 22nd ACM International Conference on Hybrid Systems: Computation and Control, 57–66. ACM, 2019. https://doi.org/10.1145/3302504.3311800.","ama":"Ferrere T, Nickovic D, Donzé A, Ito H, Kapinski J. Interface-aware signal temporal logic. In: Proceedings of the 2019 22nd ACM International Conference on Hybrid Systems: Computation and Control. ACM; 2019:57-66. doi:10.1145/3302504.3311800","ieee":"T. Ferrere, D. Nickovic, A. Donzé, H. Ito, and J. Kapinski, “Interface-aware signal temporal logic,” in Proceedings of the 2019 22nd ACM International Conference on Hybrid Systems: Computation and Control, Montreal, Canada, 2019, pp. 57–66.","apa":"Ferrere, T., Nickovic, D., Donzé, A., Ito, H., & Kapinski, J. (2019). Interface-aware signal temporal logic. In Proceedings of the 2019 22nd ACM International Conference on Hybrid Systems: Computation and Control (pp. 57–66). Montreal, Canada: ACM. https://doi.org/10.1145/3302504.3311800","ista":"Ferrere T, Nickovic D, Donzé A, Ito H, Kapinski J. 2019. Interface-aware signal temporal logic. Proceedings of the 2019 22nd ACM International Conference on Hybrid Systems: Computation and Control. HSCC: Hybrid Systems Computation and Control, 57–66."},"publication":"Proceedings of the 2019 22nd ACM International Conference on Hybrid Systems: Computation and Control","page":"57-66"},{"page":"630-649","publication":"31st International Conference on Computer-Aided Verification","citation":{"chicago":"Avni, Guy, Roderick Bloem, Krishnendu Chatterjee, Thomas A Henzinger, Bettina Konighofer, and Stefan Pranger. “Run-Time Optimization for Learned Controllers through Quantitative Games.” In 31st International Conference on Computer-Aided Verification, 11561:630–49. Springer, 2019. https://doi.org/10.1007/978-3-030-25540-4_36.","short":"G. Avni, R. Bloem, K. Chatterjee, T.A. Henzinger, B. Konighofer, S. Pranger, in:, 31st International Conference on Computer-Aided Verification, Springer, 2019, pp. 630–649.","mla":"Avni, Guy, et al. “Run-Time Optimization for Learned Controllers through Quantitative Games.” 31st International Conference on Computer-Aided Verification, vol. 11561, Springer, 2019, pp. 630–49, doi:10.1007/978-3-030-25540-4_36.","apa":"Avni, G., Bloem, R., Chatterjee, K., Henzinger, T. A., Konighofer, B., & Pranger, S. (2019). Run-time optimization for learned controllers through quantitative games. In 31st International Conference on Computer-Aided Verification (Vol. 11561, pp. 630–649). New York, NY, United States: Springer. https://doi.org/10.1007/978-3-030-25540-4_36","ieee":"G. Avni, R. Bloem, K. Chatterjee, T. A. Henzinger, B. Konighofer, and S. Pranger, “Run-time optimization for learned controllers through quantitative games,” in 31st International Conference on Computer-Aided Verification, New York, NY, United States, 2019, vol. 11561, pp. 630–649.","ista":"Avni G, Bloem R, Chatterjee K, Henzinger TA, Konighofer B, Pranger S. 2019. Run-time optimization for learned controllers through quantitative games. 31st International Conference on Computer-Aided Verification. CAV: Computer Aided Verification, LNCS, vol. 11561, 630–649.","ama":"Avni G, Bloem R, Chatterjee K, Henzinger TA, Konighofer B, Pranger S. Run-time optimization for learned controllers through quantitative games. In: 31st International Conference on Computer-Aided Verification. Vol 11561. Springer; 2019:630-649. doi:10.1007/978-3-030-25540-4_36"},"date_published":"2019-07-12T00:00:00Z","scopus_import":"1","day":"12","article_processing_charge":"No","has_accepted_license":"1","status":"public","title":"Run-time optimization for learned controllers through quantitative games","ddc":["000"],"intvolume":" 11561","_id":"6462","user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","file":[{"file_size":659766,"content_type":"application/pdf","creator":"dernst","access_level":"open_access","file_name":"2019_CAV_Avni.pdf","checksum":"c231579f2485c6fd4df17c9443a4d80b","date_updated":"2020-07-14T12:47:31Z","date_created":"2019-08-14T09:35:24Z","relation":"main_file","file_id":"6816"}],"oa_version":"Published Version","alternative_title":["LNCS"],"type":"conference","abstract":[{"text":"A controller is a device that interacts with a plant. At each time point,it reads the plant’s state and issues commands with the goal that the plant oper-ates optimally. Constructing optimal controllers is a fundamental and challengingproblem. Machine learning techniques have recently been successfully applied totrain controllers, yet they have limitations. Learned controllers are monolithic andhard to reason about. In particular, it is difficult to add features without retraining,to guarantee any level of performance, and to achieve acceptable performancewhen encountering untrained scenarios. These limitations can be addressed bydeploying quantitative run-timeshieldsthat serve as a proxy for the controller.At each time point, the shield reads the command issued by the controller andmay choose to alter it before passing it on to the plant. We show how optimalshields that interfere as little as possible while guaranteeing a desired level ofcontroller performance, can be generated systematically and automatically usingreactive synthesis. First, we abstract the plant by building a stochastic model.Second, we consider the learned controller to be a black box. Third, we mea-surecontroller performanceandshield interferenceby two quantitative run-timemeasures that are formally defined using weighted automata. Then, the problemof constructing a shield that guarantees maximal performance with minimal inter-ference is the problem of finding an optimal strategy in a stochastic2-player game“controller versus shield” played on the abstract state space of the plant with aquantitative objective obtained from combining the performance and interferencemeasures. We illustrate the effectiveness of our approach by automatically con-structing lightweight shields for learned traffic-light controllers in various roadnetworks. The shields we generate avoid liveness bugs, improve controller per-formance in untrained and changing traffic situations, and add features to learnedcontrollers, such as giving priority to emergency vehicles.","lang":"eng"}],"quality_controlled":"1","isi":1,"project":[{"call_identifier":"FWF","name":"Formal Methods meets Algorithmic Game Theory","_id":"264B3912-B435-11E9-9278-68D0E5697425","grant_number":"M02369"},{"_id":"25F42A32-B435-11E9-9278-68D0E5697425","grant_number":"Z211","call_identifier":"FWF","name":"The Wittgenstein Prize"},{"call_identifier":"FWF","name":"Rigorous Systems Engineering","_id":"25832EC2-B435-11E9-9278-68D0E5697425","grant_number":"S 11407_N23"}],"tmp":{"name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","short":"CC BY (4.0)","image":"/images/cc_by.png"},"oa":1,"external_id":{"isi":["000491468000036"]},"language":[{"iso":"eng"}],"conference":{"start_date":"2019-07-13","location":"New York, NY, United States","end_date":"2019-07-18","name":"CAV: Computer Aided Verification"},"doi":"10.1007/978-3-030-25540-4_36","month":"07","publication_identifier":{"isbn":["9783030255398"],"issn":["0302-9743"]},"publication_status":"published","publisher":"Springer","department":[{"_id":"ToHe"},{"_id":"KrCh"}],"year":"2019","date_updated":"2023-08-25T10:33:27Z","date_created":"2019-05-16T11:22:30Z","volume":11561,"author":[{"full_name":"Avni, Guy","first_name":"Guy","last_name":"Avni","id":"463C8BC2-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0001-5588-8287"},{"last_name":"Bloem","first_name":"Roderick","full_name":"Bloem, Roderick"},{"orcid":"0000-0002-4561-241X","id":"2E5DCA20-F248-11E8-B48F-1D18A9856A87","last_name":"Chatterjee","first_name":"Krishnendu","full_name":"Chatterjee, Krishnendu"},{"first_name":"Thomas A","last_name":"Henzinger","id":"40876CD8-F248-11E8-B48F-1D18A9856A87","orcid":"0000−0002−2985−7724","full_name":"Henzinger, Thomas A"},{"first_name":"Bettina","last_name":"Konighofer","full_name":"Konighofer, Bettina"},{"full_name":"Pranger, Stefan","last_name":"Pranger","first_name":"Stefan"}],"file_date_updated":"2020-07-14T12:47:31Z"},{"date_published":"2019-07-12T00:00:00Z","page":"297-314","citation":{"ama":"Garcia Soto M, Henzinger TA, Schilling C, Zeleznik L. Membership-based synthesis of linear hybrid automata. In: 31st International Conference on Computer-Aided Verification. Vol 11561. Springer; 2019:297-314. doi:10.1007/978-3-030-25540-4_16","ieee":"M. Garcia Soto, T. A. Henzinger, C. Schilling, and L. Zeleznik, “Membership-based synthesis of linear hybrid automata,” in 31st International Conference on Computer-Aided Verification, New York City, NY, USA, 2019, vol. 11561, pp. 297–314.","apa":"Garcia Soto, M., Henzinger, T. A., Schilling, C., & Zeleznik, L. (2019). Membership-based synthesis of linear hybrid automata. In 31st International Conference on Computer-Aided Verification (Vol. 11561, pp. 297–314). New York City, NY, USA: Springer. https://doi.org/10.1007/978-3-030-25540-4_16","ista":"Garcia Soto M, Henzinger TA, Schilling C, Zeleznik L. 2019. Membership-based synthesis of linear hybrid automata. 31st International Conference on Computer-Aided Verification. CAV: Computer-Aided Verification, LNCS, vol. 11561, 297–314.","short":"M. Garcia Soto, T.A. Henzinger, C. Schilling, L. Zeleznik, in:, 31st International Conference on Computer-Aided Verification, Springer, 2019, pp. 297–314.","mla":"Garcia Soto, Miriam, et al. “Membership-Based Synthesis of Linear Hybrid Automata.” 31st International Conference on Computer-Aided Verification, vol. 11561, Springer, 2019, pp. 297–314, doi:10.1007/978-3-030-25540-4_16.","chicago":"Garcia Soto, Miriam, Thomas A Henzinger, Christian Schilling, and Luka Zeleznik. “Membership-Based Synthesis of Linear Hybrid Automata.” In 31st International Conference on Computer-Aided Verification, 11561:297–314. Springer, 2019. https://doi.org/10.1007/978-3-030-25540-4_16."},"publication":"31st International Conference on Computer-Aided Verification","article_processing_charge":"No","has_accepted_license":"1","day":"12","keyword":["Synthesis","Linear hybrid automaton","Membership"],"scopus_import":"1","oa_version":"Published Version","file":[{"checksum":"1f1d61b83a151031745ef70a501da3d6","date_updated":"2020-07-14T12:47:32Z","date_created":"2019-08-14T11:05:30Z","relation":"main_file","file_id":"6817","content_type":"application/pdf","file_size":674795,"creator":"dernst","access_level":"open_access","file_name":"2019_CAV_GarciaSoto.pdf"}],"intvolume":" 11561","ddc":["000"],"title":"Membership-based synthesis of linear hybrid automata","status":"public","user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","_id":"6493","abstract":[{"text":"We present two algorithmic approaches for synthesizing linear hybrid automata from experimental data. Unlike previous approaches, our algorithms work without a template and generate an automaton with nondeterministic guards and invariants, and with an arbitrary number and topology of modes. They thus construct a succinct model from the data and provide formal guarantees. In particular, (1) the generated automaton can reproduce the data up to a specified tolerance and (2) the automaton is tight, given the first guarantee. Our first approach encodes the synthesis problem as a logical formula in the theory of linear arithmetic, which can then be solved by an SMT solver. This approach minimizes the number of modes in the resulting model but is only feasible for limited data sets. To address scalability, we propose a second approach that does not enforce to find a minimal model. The algorithm constructs an initial automaton and then iteratively extends the automaton based on processing new data. Therefore the algorithm is well-suited for online and synthesis-in-the-loop applications. The core of the algorithm is a membership query that checks whether, within the specified tolerance, a given data set can result from the execution of a given automaton. We solve this membership problem for linear hybrid automata by repeated reachability computations. We demonstrate the effectiveness of the algorithm on synthetic data sets and on cardiac-cell measurements.","lang":"eng"}],"alternative_title":["LNCS"],"type":"conference","language":[{"iso":"eng"}],"doi":"10.1007/978-3-030-25540-4_16","conference":{"name":"CAV: Computer-Aided Verification","start_date":"2019-07-15","location":"New York City, NY, USA","end_date":"2019-07-18"},"project":[{"name":"ISTplus - Postdoctoral Fellowships","call_identifier":"H2020","grant_number":"754411","_id":"260C2330-B435-11E9-9278-68D0E5697425"},{"call_identifier":"FWF","name":"Rigorous Systems Engineering","grant_number":"S 11407_N23","_id":"25832EC2-B435-11E9-9278-68D0E5697425"},{"_id":"25F42A32-B435-11E9-9278-68D0E5697425","grant_number":"Z211","call_identifier":"FWF","name":"The Wittgenstein Prize"}],"isi":1,"quality_controlled":"1","external_id":{"isi":["000491468000016"]},"tmp":{"name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","short":"CC BY (4.0)","image":"/images/cc_by.png"},"oa":1,"publication_identifier":{"isbn":["9783030255398"],"issn":["0302-9743"]},"month":"07","volume":11561,"date_updated":"2023-08-25T10:40:41Z","date_created":"2019-05-27T07:09:53Z","author":[{"full_name":"Garcia Soto, Miriam","first_name":"Miriam","last_name":"Garcia Soto","id":"4B3207F6-F248-11E8-B48F-1D18A9856A87","orcid":"0000−0003−2936−5719"},{"full_name":"Henzinger, Thomas A","orcid":"0000−0002−2985−7724","id":"40876CD8-F248-11E8-B48F-1D18A9856A87","last_name":"Henzinger","first_name":"Thomas A"},{"id":"3A2F4DCE-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0003-3658-1065","first_name":"Christian","last_name":"Schilling","full_name":"Schilling, Christian"},{"full_name":"Zeleznik, Luka","first_name":"Luka","last_name":"Zeleznik","id":"3ADCA2E4-F248-11E8-B48F-1D18A9856A87"}],"department":[{"_id":"ToHe"}],"publisher":"Springer","publication_status":"published","year":"2019","ec_funded":1,"file_date_updated":"2020-07-14T12:47:32Z"},{"user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","_id":"6752","status":"public","title":"Infinite-duration bidding games","intvolume":" 66","oa_version":"Preprint","type":"journal_article","abstract":[{"lang":"eng","text":"Two-player games on graphs are widely studied in formal methods, as they model the interaction between a system and its environment. The game is played by moving a token throughout a graph to produce an infinite path. There are several common modes to determine how the players move the token through the graph; e.g., in turn-based games the players alternate turns in moving the token. We study the bidding mode of moving the token, which, to the best of our knowledge, has never been studied in infinite-duration games. The following bidding rule was previously defined and called Richman bidding. Both players have separate budgets, which sum up to 1. In each turn, a bidding takes place: Both players submit bids simultaneously, where a bid is legal if it does not exceed the available budget, and the higher bidder pays his bid to the other player and moves the token. The central question studied in bidding games is a necessary and sufficient initial budget for winning the game: a threshold budget in a vertex is a value t ∈ [0, 1] such that if Player 1’s budget exceeds t, he can win the game; and if Player 2’s budget exceeds 1 − t, he can win the game. Threshold budgets were previously shown to exist in every vertex of a reachability game, which have an interesting connection with random-turn games—a sub-class of simple stochastic games in which the player who moves is chosen randomly. We show the existence of threshold budgets for a qualitative class of infinite-duration games, namely parity games, and a quantitative class, namely mean-payoff games. The key component of the proof is a quantitative solution to strongly connected mean-payoff bidding games in which we extend the connection with random-turn games to these games, and construct explicit optimal strategies for both players."}],"issue":"4","publication":"Journal of the ACM","citation":{"mla":"Avni, Guy, et al. “Infinite-Duration Bidding Games.” Journal of the ACM, vol. 66, no. 4, 31, ACM, 2019, doi:10.1145/3340295.","short":"G. Avni, T.A. Henzinger, V.K. Chonev, Journal of the ACM 66 (2019).","chicago":"Avni, Guy, Thomas A Henzinger, and Ventsislav K Chonev. “Infinite-Duration Bidding Games.” Journal of the ACM. ACM, 2019. https://doi.org/10.1145/3340295.","ama":"Avni G, Henzinger TA, Chonev VK. Infinite-duration bidding games. Journal of the ACM. 2019;66(4). doi:10.1145/3340295","ista":"Avni G, Henzinger TA, Chonev VK. 2019. Infinite-duration bidding games. Journal of the ACM. 66(4), 31.","apa":"Avni, G., Henzinger, T. A., & Chonev, V. K. (2019). Infinite-duration bidding games. Journal of the ACM. ACM. https://doi.org/10.1145/3340295","ieee":"G. Avni, T. A. Henzinger, and V. K. Chonev, “Infinite-duration bidding games,” Journal of the ACM, vol. 66, no. 4. ACM, 2019."},"date_published":"2019-07-16T00:00:00Z","scopus_import":"1","day":"16","article_processing_charge":"No","year":"2019","publication_status":"published","publisher":"ACM","department":[{"_id":"ToHe"}],"author":[{"id":"463C8BC2-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0001-5588-8287","first_name":"Guy","last_name":"Avni","full_name":"Avni, Guy"},{"orcid":"0000−0002−2985−7724","id":"40876CD8-F248-11E8-B48F-1D18A9856A87","last_name":"Henzinger","first_name":"Thomas A","full_name":"Henzinger, Thomas A"},{"first_name":"Ventsislav K","last_name":"Chonev","id":"36CBE2E6-F248-11E8-B48F-1D18A9856A87","full_name":"Chonev, Ventsislav K"}],"related_material":{"record":[{"relation":"earlier_version","status":"public","id":"950"}]},"date_created":"2019-08-04T21:59:16Z","date_updated":"2023-08-29T07:02:13Z","volume":66,"article_number":"31","oa":1,"main_file_link":[{"url":"https://arxiv.org/abs/1705.01433","open_access":"1"}],"external_id":{"arxiv":["1705.01433"],"isi":["000487714900008"]},"quality_controlled":"1","isi":1,"project":[{"_id":"25F42A32-B435-11E9-9278-68D0E5697425","grant_number":"Z211","name":"The Wittgenstein Prize","call_identifier":"FWF"},{"name":"Rigorous Systems Engineering","call_identifier":"FWF","grant_number":"S11402-N23","_id":"25F2ACDE-B435-11E9-9278-68D0E5697425"},{"grant_number":"M02369","_id":"264B3912-B435-11E9-9278-68D0E5697425","name":"Formal Methods meets Algorithmic Game Theory","call_identifier":"FWF"}],"doi":"10.1145/3340295","language":[{"iso":"eng"}],"month":"07","publication_identifier":{"issn":["00045411"],"eissn":["1557735X"]}},{"type":"journal_article","abstract":[{"text":"We show how to construct temporal testers for the logic MITL, a prominent linear-time logic for real-time systems. A temporal tester is a transducer that inputs a signal holding the Boolean value of atomic propositions and outputs the truth value of a formula along time. Here we consider testers over continuous-time Boolean signals that use clock variables to enforce duration constraints, as in timed automata. We first rewrite the MITL formula into a “simple” formula using a limited set of temporal modalities. We then build testers for these specific modalities and show how to compose testers for simple formulae into complex ones. Temporal testers can be turned into acceptors, yielding a compositional translation from MITL to timed automata. This construction is much simpler than previously known and remains asymptotically optimal. It supports both past and future operators and can easily be extended.","lang":"eng"}],"issue":"3","user_id":"c635000d-4b10-11ee-a964-aac5a93f6ac1","_id":"7109","title":"From real-time logic to timed automata","status":"public","intvolume":" 66","oa_version":"None","scopus_import":"1","day":"01","article_processing_charge":"No","publication":"Journal of the ACM","citation":{"ama":"Ferrere T, Maler O, Ničković D, Pnueli A. From real-time logic to timed automata. Journal of the ACM. 2019;66(3). doi:10.1145/3286976","ista":"Ferrere T, Maler O, Ničković D, Pnueli A. 2019. From real-time logic to timed automata. Journal of the ACM. 66(3), 19.","ieee":"T. Ferrere, O. Maler, D. Ničković, and A. Pnueli, “From real-time logic to timed automata,” Journal of the ACM, vol. 66, no. 3. ACM, 2019.","apa":"Ferrere, T., Maler, O., Ničković, D., & Pnueli, A. (2019). From real-time logic to timed automata. Journal of the ACM. ACM. https://doi.org/10.1145/3286976","mla":"Ferrere, Thomas, et al. “From Real-Time Logic to Timed Automata.” Journal of the ACM, vol. 66, no. 3, 19, ACM, 2019, doi:10.1145/3286976.","short":"T. Ferrere, O. Maler, D. Ničković, A. Pnueli, Journal of the ACM 66 (2019).","chicago":"Ferrere, Thomas, Oded Maler, Dejan Ničković, and Amir Pnueli. “From Real-Time Logic to Timed Automata.” Journal of the ACM. ACM, 2019. https://doi.org/10.1145/3286976."},"article_type":"original","date_published":"2019-05-01T00:00:00Z","article_number":"19","year":"2019","publication_status":"published","publisher":"ACM","department":[{"_id":"ToHe"}],"author":[{"full_name":"Ferrere, Thomas","last_name":"Ferrere","first_name":"Thomas","orcid":"0000-0001-5199-3143","id":"40960E6E-F248-11E8-B48F-1D18A9856A87"},{"last_name":"Maler","first_name":"Oded","full_name":"Maler, Oded"},{"last_name":"Ničković","first_name":"Dejan","full_name":"Ničković, Dejan"},{"first_name":"Amir","last_name":"Pnueli","full_name":"Pnueli, Amir"}],"date_created":"2019-11-26T10:22:32Z","date_updated":"2023-09-06T11:11:56Z","volume":66,"month":"05","publication_identifier":{"issn":["0004-5411"]},"external_id":{"isi":["000495406300005"]},"isi":1,"quality_controlled":"1","project":[{"grant_number":"S 11407_N23","_id":"25832EC2-B435-11E9-9278-68D0E5697425","name":"Rigorous Systems Engineering","call_identifier":"FWF"},{"name":"The Wittgenstein Prize","call_identifier":"FWF","_id":"25F42A32-B435-11E9-9278-68D0E5697425","grant_number":"Z211"}],"doi":"10.1145/3286976","language":[{"iso":"eng"}]},{"scopus_import":"1","article_processing_charge":"No","day":"17","page":"155-187","citation":{"short":"C.C. Guet, T.A. Henzinger, C. Igler, T. Petrov, A. Sezgin, in:, 17th International Conference on Computational Methods in Systems Biology, Springer Nature, 2019, pp. 155–187.","mla":"Guet, Calin C., et al. “Transient Memory in Gene Regulation.” 17th International Conference on Computational Methods in Systems Biology, vol. 11773, Springer Nature, 2019, pp. 155–87, doi:10.1007/978-3-030-31304-3_9.","chicago":"Guet, Calin C, Thomas A Henzinger, Claudia Igler, Tatjana Petrov, and Ali Sezgin. “Transient Memory in Gene Regulation.” In 17th International Conference on Computational Methods in Systems Biology, 11773:155–87. Springer Nature, 2019. https://doi.org/10.1007/978-3-030-31304-3_9.","ama":"Guet CC, Henzinger TA, Igler C, Petrov T, Sezgin A. Transient memory in gene regulation. In: 17th International Conference on Computational Methods in Systems Biology. Vol 11773. Springer Nature; 2019:155-187. doi:10.1007/978-3-030-31304-3_9","ieee":"C. C. Guet, T. A. Henzinger, C. Igler, T. Petrov, and A. Sezgin, “Transient memory in gene regulation,” in 17th International Conference on Computational Methods in Systems Biology, Trieste, Italy, 2019, vol. 11773, pp. 155–187.","apa":"Guet, C. C., Henzinger, T. A., Igler, C., Petrov, T., & Sezgin, A. (2019). Transient memory in gene regulation. In 17th International Conference on Computational Methods in Systems Biology (Vol. 11773, pp. 155–187). Trieste, Italy: Springer Nature. https://doi.org/10.1007/978-3-030-31304-3_9","ista":"Guet CC, Henzinger TA, Igler C, Petrov T, Sezgin A. 2019. Transient memory in gene regulation. 17th International Conference on Computational Methods in Systems Biology. CMSB: Computational Methods in Systems Biology, LNCS, vol. 11773, 155–187."},"publication":"17th International Conference on Computational Methods in Systems Biology","date_published":"2019-09-17T00:00:00Z","alternative_title":["LNCS"],"type":"conference","abstract":[{"lang":"eng","text":"The expression of a gene is characterised by its transcription factors and the function processing them. If the transcription factors are not affected by gene products, the regulating function is often represented as a combinational logic circuit, where the outputs (product) are determined by current input values (transcription factors) only, and are hence independent on their relative arrival times. However, the simultaneous arrival of transcription factors (TFs) in genetic circuits is a strong assumption, given that the processes of transcription and translation of a gene into a protein introduce intrinsic time delays and that there is no global synchronisation among the arrival times of different molecular species at molecular targets.\r\n\r\nIn this paper, we construct an experimentally implementable genetic circuit with two inputs and a single output, such that, in presence of small delays in input arrival, the circuit exhibits qualitatively distinct observable phenotypes. In particular, these phenotypes are long lived transients: they all converge to a single value, but so slowly, that they seem stable for an extended time period, longer than typical experiment duration. We used rule-based language to prototype our circuit, and we implemented a search for finding the parameter combinations raising the phenotypes of interest.\r\n\r\nThe behaviour of our prototype circuit has wide implications. First, it suggests that GRNs can exploit event timing to create phenotypes. Second, it opens the possibility that GRNs are using event timing to react to stimuli and memorise events, without explicit feedback in regulation. From the modelling perspective, our prototype circuit demonstrates the critical importance of analysing the transient dynamics at the promoter binding sites of the DNA, before applying rapid equilibrium assumptions."}],"intvolume":" 11773","title":"Transient memory in gene regulation","status":"public","_id":"7147","user_id":"c635000d-4b10-11ee-a964-aac5a93f6ac1","oa_version":"None","publication_identifier":{"isbn":["9783030313036","9783030313043"],"eissn":["1611-3349"],"issn":["0302-9743"]},"month":"09","project":[{"name":"The Wittgenstein Prize","call_identifier":"FWF","_id":"25F42A32-B435-11E9-9278-68D0E5697425","grant_number":"Z211"},{"grant_number":"24573","_id":"251EE76E-B435-11E9-9278-68D0E5697425","name":"Design principles underlying genetic switch architecture"}],"quality_controlled":"1","isi":1,"external_id":{"isi":["000557875100009"]},"language":[{"iso":"eng"}],"doi":"10.1007/978-3-030-31304-3_9","conference":{"end_date":"2019-09-20","location":"Trieste, Italy","start_date":"2019-09-18","name":"CMSB: Computational Methods in Systems Biology"},"publisher":"Springer Nature","department":[{"_id":"CaGu"},{"_id":"ToHe"}],"publication_status":"published","year":"2019","volume":11773,"date_created":"2019-12-04T16:07:50Z","date_updated":"2023-09-06T11:18:08Z","author":[{"id":"47F8433E-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0001-6220-2052","first_name":"Calin C","last_name":"Guet","full_name":"Guet, Calin C"},{"full_name":"Henzinger, Thomas A","orcid":"0000−0002−2985−7724","id":"40876CD8-F248-11E8-B48F-1D18A9856A87","last_name":"Henzinger","first_name":"Thomas A"},{"last_name":"Igler","first_name":"Claudia","id":"46613666-F248-11E8-B48F-1D18A9856A87","full_name":"Igler, Claudia"},{"orcid":"0000-0002-9041-0905","id":"3D5811FC-F248-11E8-B48F-1D18A9856A87","last_name":"Petrov","first_name":"Tatjana","full_name":"Petrov, Tatjana"},{"full_name":"Sezgin, Ali","first_name":"Ali","last_name":"Sezgin","id":"4C7638DA-F248-11E8-B48F-1D18A9856A87"}]},{"month":"10","publication_identifier":{"issn":["0302-9743"],"isbn":["9783030320782","9783030320799"]},"external_id":{"isi":["000570006300017"]},"quality_controlled":"1","isi":1,"project":[{"grant_number":"Z211","_id":"25F42A32-B435-11E9-9278-68D0E5697425","name":"The Wittgenstein Prize","call_identifier":"FWF"},{"grant_number":"S11402-N23","_id":"25F2ACDE-B435-11E9-9278-68D0E5697425","name":"Rigorous Systems Engineering","call_identifier":"FWF"}],"conference":{"location":"Porto, Portugal","start_date":"2019-10-08","end_date":"2019-10-11","name":"RV: Runtime Verification"},"doi":"10.1007/978-3-030-32079-9_17","language":[{"iso":"eng"}],"year":"2019","publication_status":"published","publisher":"Springer Nature","department":[{"_id":"ToHe"}],"author":[{"last_name":"Ničković","first_name":"Dejan","full_name":"Ničković, Dejan"},{"full_name":"Qin, Xin","last_name":"Qin","first_name":"Xin"},{"first_name":"Thomas","last_name":"Ferrere","id":"40960E6E-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0001-5199-3143","full_name":"Ferrere, Thomas"},{"full_name":"Mateis, Cristinel","first_name":"Cristinel","last_name":"Mateis"},{"full_name":"Deshmukh, Jyotirmoy","first_name":"Jyotirmoy","last_name":"Deshmukh"}],"date_created":"2019-12-09T08:47:55Z","date_updated":"2023-09-06T11:24:10Z","volume":11757,"scopus_import":"1","day":"01","article_processing_charge":"No","publication":"19th International Conference on Runtime Verification","citation":{"chicago":"Ničković, Dejan, Xin Qin, Thomas Ferrere, Cristinel Mateis, and Jyotirmoy Deshmukh. “Shape Expressions for Specifying and Extracting Signal Features.” In 19th International Conference on Runtime Verification, 11757:292–309. Springer Nature, 2019. https://doi.org/10.1007/978-3-030-32079-9_17.","mla":"Ničković, Dejan, et al. “Shape Expressions for Specifying and Extracting Signal Features.” 19th International Conference on Runtime Verification, vol. 11757, Springer Nature, 2019, pp. 292–309, doi:10.1007/978-3-030-32079-9_17.","short":"D. Ničković, X. Qin, T. Ferrere, C. Mateis, J. Deshmukh, in:, 19th International Conference on Runtime Verification, Springer Nature, 2019, pp. 292–309.","ista":"Ničković D, Qin X, Ferrere T, Mateis C, Deshmukh J. 2019. Shape expressions for specifying and extracting signal features. 19th International Conference on Runtime Verification. RV: Runtime Verification, LNCS, vol. 11757, 292–309.","ieee":"D. Ničković, X. Qin, T. Ferrere, C. Mateis, and J. Deshmukh, “Shape expressions for specifying and extracting signal features,” in 19th International Conference on Runtime Verification, Porto, Portugal, 2019, vol. 11757, pp. 292–309.","apa":"Ničković, D., Qin, X., Ferrere, T., Mateis, C., & Deshmukh, J. (2019). Shape expressions for specifying and extracting signal features. In 19th International Conference on Runtime Verification (Vol. 11757, pp. 292–309). Porto, Portugal: Springer Nature. https://doi.org/10.1007/978-3-030-32079-9_17","ama":"Ničković D, Qin X, Ferrere T, Mateis C, Deshmukh J. Shape expressions for specifying and extracting signal features. In: 19th International Conference on Runtime Verification. Vol 11757. Springer Nature; 2019:292-309. doi:10.1007/978-3-030-32079-9_17"},"page":"292-309","date_published":"2019-10-01T00:00:00Z","type":"conference","alternative_title":["LNCS"],"abstract":[{"lang":"eng","text":"Cyber-physical systems (CPS) and the Internet-of-Things (IoT) result in a tremendous amount of generated, measured and recorded time-series data. Extracting temporal segments that encode patterns with useful information out of these huge amounts of data is an extremely difficult problem. We propose shape expressions as a declarative formalism for specifying, querying and extracting sophisticated temporal patterns from possibly noisy data. Shape expressions are regular expressions with arbitrary (linear, exponential, sinusoidal, etc.) shapes with parameters as atomic predicates and additional constraints on these parameters. We equip shape expressions with a novel noisy semantics that combines regular expression matching semantics with statistical regression. We characterize essential properties of the formalism and propose an efficient approximate shape expression matching procedure. We demonstrate the wide applicability of this technique on two case studies. "}],"user_id":"c635000d-4b10-11ee-a964-aac5a93f6ac1","_id":"7159","status":"public","title":"Shape expressions for specifying and extracting signal features","intvolume":" 11757","oa_version":"None"},{"oa_version":"Preprint","status":"public","title":"Piecewise robust barrier tubes for nonlinear hybrid systems with uncertainty","intvolume":" 11750","user_id":"c635000d-4b10-11ee-a964-aac5a93f6ac1","_id":"7231","abstract":[{"text":"Piecewise Barrier Tubes (PBT) is a new technique for flowpipe overapproximation for nonlinear systems with polynomial dynamics, which leverages a combination of barrier certificates. PBT has advantages over traditional time-step based methods in dealing with those nonlinear dynamical systems in which there is a large difference in speed between trajectories, producing an overapproximation that is time independent. However, the existing approach for PBT is not efficient due to the application of interval methods for enclosure-box computation, and it can only deal with continuous dynamical systems without uncertainty. In this paper, we extend the approach with the ability to handle both continuous and hybrid dynamical systems with uncertainty that can reside in parameters and/or noise. We also improve the efficiency of the method significantly, by avoiding the use of interval-based methods for the enclosure-box computation without loosing soundness. We have developed a C++ prototype implementing the proposed approach and we evaluate it on several benchmarks. The experiments show that our approach is more efficient and precise than other methods in the literature.","lang":"eng"}],"alternative_title":["LNCS"],"type":"conference","date_published":"2019-08-13T00:00:00Z","page":"123-141","publication":"17th International Conference on Formal Modeling and Analysis of Timed Systems","citation":{"ama":"Kong H, Bartocci E, Jiang Y, Henzinger TA. Piecewise robust barrier tubes for nonlinear hybrid systems with uncertainty. In: 17th International Conference on Formal Modeling and Analysis of Timed Systems. Vol 11750. Springer Nature; 2019:123-141. doi:10.1007/978-3-030-29662-9_8","ista":"Kong H, Bartocci E, Jiang Y, Henzinger TA. 2019. Piecewise robust barrier tubes for nonlinear hybrid systems with uncertainty. 17th International Conference on Formal Modeling and Analysis of Timed Systems. FORMATS: Formal Modeling and Analysis of Timed Systems, LNCS, vol. 11750, 123–141.","ieee":"H. Kong, E. Bartocci, Y. Jiang, and T. A. Henzinger, “Piecewise robust barrier tubes for nonlinear hybrid systems with uncertainty,” in 17th International Conference on Formal Modeling and Analysis of Timed Systems, Amsterdam, The Netherlands, 2019, vol. 11750, pp. 123–141.","apa":"Kong, H., Bartocci, E., Jiang, Y., & Henzinger, T. A. (2019). Piecewise robust barrier tubes for nonlinear hybrid systems with uncertainty. In 17th International Conference on Formal Modeling and Analysis of Timed Systems (Vol. 11750, pp. 123–141). Amsterdam, The Netherlands: Springer Nature. https://doi.org/10.1007/978-3-030-29662-9_8","mla":"Kong, Hui, et al. “Piecewise Robust Barrier Tubes for Nonlinear Hybrid Systems with Uncertainty.” 17th International Conference on Formal Modeling and Analysis of Timed Systems, vol. 11750, Springer Nature, 2019, pp. 123–41, doi:10.1007/978-3-030-29662-9_8.","short":"H. Kong, E. Bartocci, Y. Jiang, T.A. Henzinger, in:, 17th International Conference on Formal Modeling and Analysis of Timed Systems, Springer Nature, 2019, pp. 123–141.","chicago":"Kong, Hui, Ezio Bartocci, Yu Jiang, and Thomas A Henzinger. “Piecewise Robust Barrier Tubes for Nonlinear Hybrid Systems with Uncertainty.” In 17th International Conference on Formal Modeling and Analysis of Timed Systems, 11750:123–41. Springer Nature, 2019. https://doi.org/10.1007/978-3-030-29662-9_8."},"day":"13","article_processing_charge":"No","scopus_import":"1","date_created":"2020-01-05T23:00:47Z","date_updated":"2023-09-06T14:55:15Z","volume":11750,"author":[{"full_name":"Kong, Hui","first_name":"Hui","last_name":"Kong","id":"3BDE25AA-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0002-3066-6941"},{"full_name":"Bartocci, Ezio","first_name":"Ezio","last_name":"Bartocci"},{"last_name":"Jiang","first_name":"Yu","full_name":"Jiang, Yu"},{"first_name":"Thomas A","last_name":"Henzinger","id":"40876CD8-F248-11E8-B48F-1D18A9856A87","orcid":"0000−0002−2985−7724","full_name":"Henzinger, Thomas A"}],"publication_status":"published","department":[{"_id":"ToHe"}],"publisher":"Springer Nature","year":"2019","language":[{"iso":"eng"}],"conference":{"location":"Amsterdam, The Netherlands","start_date":"2019-08-27","end_date":"2019-08-29","name":"FORMATS: Formal Modeling and Analysis of Timed Systems"},"doi":"10.1007/978-3-030-29662-9_8","quality_controlled":"1","isi":1,"project":[{"call_identifier":"FWF","name":"Rigorous Systems Engineering","_id":"25832EC2-B435-11E9-9278-68D0E5697425","grant_number":"S 11407_N23"},{"_id":"25863FF4-B435-11E9-9278-68D0E5697425","grant_number":"S11407","name":"Game Theory","call_identifier":"FWF"},{"grant_number":"Z211","_id":"25F42A32-B435-11E9-9278-68D0E5697425","name":"The Wittgenstein Prize","call_identifier":"FWF"}],"oa":1,"external_id":{"isi":["000611677700008"],"arxiv":["1907.11514"]},"main_file_link":[{"open_access":"1","url":"https://arxiv.org/abs/1907.11514"}],"month":"08","publication_identifier":{"issn":["0302-9743"],"isbn":["978-3-0302-9661-2"],"eissn":["1611-3349"]}},{"day":"13","article_processing_charge":"No","scopus_import":"1","date_published":"2019-08-13T00:00:00Z","page":"59-75","publication":"17th International Conference on Formal Modeling and Analysis of Timed Systems","citation":{"ama":"Ferrere T, Maler O, Nickovic D. Mixed-time signal temporal logic. In: 17th International Conference on Formal Modeling and Analysis of Timed Systems. Vol 11750. Springer Nature; 2019:59-75. doi:10.1007/978-3-030-29662-9_4","ista":"Ferrere T, Maler O, Nickovic D. 2019. Mixed-time signal temporal logic. 17th International Conference on Formal Modeling and Analysis of Timed Systems. FORMATS: Formal Modeling and Anaysis of Timed Systems, LNCS, vol. 11750, 59–75.","ieee":"T. Ferrere, O. Maler, and D. Nickovic, “Mixed-time signal temporal logic,” in 17th International Conference on Formal Modeling and Analysis of Timed Systems, Amsterdam, The Netherlands, 2019, vol. 11750, pp. 59–75.","apa":"Ferrere, T., Maler, O., & Nickovic, D. (2019). Mixed-time signal temporal logic. In 17th International Conference on Formal Modeling and Analysis of Timed Systems (Vol. 11750, pp. 59–75). Amsterdam, The Netherlands: Springer Nature. https://doi.org/10.1007/978-3-030-29662-9_4","mla":"Ferrere, Thomas, et al. “Mixed-Time Signal Temporal Logic.” 17th International Conference on Formal Modeling and Analysis of Timed Systems, vol. 11750, Springer Nature, 2019, pp. 59–75, doi:10.1007/978-3-030-29662-9_4.","short":"T. Ferrere, O. Maler, D. Nickovic, in:, 17th International Conference on Formal Modeling and Analysis of Timed Systems, Springer Nature, 2019, pp. 59–75.","chicago":"Ferrere, Thomas, Oded Maler, and Dejan Nickovic. “Mixed-Time Signal Temporal Logic.” In 17th International Conference on Formal Modeling and Analysis of Timed Systems, 11750:59–75. Springer Nature, 2019. https://doi.org/10.1007/978-3-030-29662-9_4."},"abstract":[{"text":"We present Mixed-time Signal Temporal Logic (STL−MX), a specification formalism which extends STL by capturing the discrete/ continuous time duality found in many cyber-physical systems (CPS), as well as mixed-signal electronic designs. In STL−MX, properties of components with continuous dynamics are expressed in STL, while specifications of components with discrete dynamics are written in LTL. To combine the two layers, we evaluate formulas on two traces, discrete- and continuous-time, and introduce two interface operators that map signals, properties and their satisfaction signals across the two time domains. We show that STL-mx has the expressive power of STL supplemented with an implicit T-periodic clock signal. We develop and implement an algorithm for monitoring STL-mx formulas and illustrate the approach using a mixed-signal example. ","lang":"eng"}],"alternative_title":["LNCS"],"type":"conference","oa_version":"None","status":"public","title":"Mixed-time signal temporal logic","intvolume":" 11750","_id":"7232","user_id":"c635000d-4b10-11ee-a964-aac5a93f6ac1","month":"08","publication_identifier":{"isbn":["978-3-0302-9661-2"],"eissn":["1611-3349"],"issn":["0302-9743"]},"language":[{"iso":"eng"}],"conference":{"end_date":"2019-08-29","location":"Amsterdam, The Netherlands","start_date":"2019-08-27","name":"FORMATS: Formal Modeling and Anaysis of Timed Systems"},"doi":"10.1007/978-3-030-29662-9_4","quality_controlled":"1","isi":1,"project":[{"name":"Rigorous Systems Engineering","call_identifier":"FWF","_id":"25832EC2-B435-11E9-9278-68D0E5697425","grant_number":"S 11407_N23"},{"name":"The Wittgenstein Prize","call_identifier":"FWF","grant_number":"Z211","_id":"25F42A32-B435-11E9-9278-68D0E5697425"}],"external_id":{"isi":["000611677700004"]},"date_updated":"2023-09-06T14:57:17Z","date_created":"2020-01-05T23:00:48Z","volume":11750,"author":[{"full_name":"Ferrere, Thomas","last_name":"Ferrere","first_name":"Thomas","orcid":"0000-0001-5199-3143","id":"40960E6E-F248-11E8-B48F-1D18A9856A87"},{"last_name":"Maler","first_name":"Oded","full_name":"Maler, Oded"},{"first_name":"Dejan","last_name":"Nickovic","id":"41BCEE5C-F248-11E8-B48F-1D18A9856A87","full_name":"Nickovic, Dejan"}],"publication_status":"published","department":[{"_id":"ToHe"}],"publisher":"Springer Nature","year":"2019"},{"publication_status":"published","department":[{"_id":"ToHe"}],"publisher":"Institute of Science and Technology Austria","year":"2019","date_created":"2019-09-22T14:08:44Z","date_updated":"2023-09-19T09:30:43Z","author":[{"id":"3444EA5E-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0001-8180-0904","first_name":"Mirco","last_name":"Giacobbe","full_name":"Giacobbe, Mirco"}],"related_material":{"record":[{"relation":"part_of_dissertation","status":"public","id":"631"},{"relation":"part_of_dissertation","status":"public","id":"647"},{"relation":"part_of_dissertation","status":"public","id":"140"}]},"file_date_updated":"2020-07-14T12:47:43Z","tmp":{"name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","short":"CC BY (4.0)","image":"/images/cc_by.png"},"oa":1,"degree_awarded":"PhD","supervisor":[{"full_name":"Henzinger, Thomas A","orcid":"0000−0002−2985−7724","id":"40876CD8-F248-11E8-B48F-1D18A9856A87","last_name":"Henzinger","first_name":"Thomas A"}],"language":[{"iso":"eng"}],"doi":"10.15479/AT:ISTA:6894","month":"09","publication_identifier":{"eissn":["2663-337X"]},"status":"public","ddc":["000"],"title":"Automatic time-unbounded reachability analysis of hybrid systems","_id":"6894","user_id":"c635000d-4b10-11ee-a964-aac5a93f6ac1","oa_version":"Published Version","file":[{"file_name":"giacobbe_thesis.pdf","access_level":"open_access","creator":"mgiacobbe","content_type":"application/pdf","file_size":4100685,"file_id":"6916","relation":"main_file","date_updated":"2020-07-14T12:47:43Z","date_created":"2019-09-27T14:15:05Z","checksum":"773beaf4a85dc2acc2c12b578fbe1965"},{"file_size":7959732,"content_type":"application/gzip","creator":"mgiacobbe","access_level":"closed","file_name":"giacobbe_thesis_src.tar.gz","checksum":"97f1c3da71feefd27e6e625d32b4c75b","date_updated":"2020-07-14T12:47:43Z","date_created":"2019-09-27T14:22:04Z","relation":"source_file","file_id":"6917"}],"alternative_title":["ISTA Thesis"],"type":"dissertation","abstract":[{"text":"Hybrid automata combine finite automata and dynamical systems, and model the interaction of digital with physical systems. Formal analysis that can guarantee the safety of all behaviors or rigorously witness failures, while unsolvable in general, has been tackled algorithmically using, e.g., abstraction, bounded model-checking, assisted theorem proving.\r\nNevertheless, very few methods have addressed the time-unbounded reachability analysis of hybrid automata and, for current sound and automatic tools, scalability remains critical. We develop methods for the polyhedral abstraction of hybrid automata, which construct coarse overapproximations and tightens them incrementally, in a CEGAR fashion. We use template polyhedra, i.e., polyhedra whose facets are normal to a given set of directions.\r\nWhile, previously, directions were given by the user, we introduce (1) the first method\r\nfor computing template directions from spurious counterexamples, so as to generalize and\r\neliminate them. The method applies naturally to convex hybrid automata, i.e., hybrid\r\nautomata with (possibly non-linear) convex constraints on derivatives only, while for linear\r\nODE requires further abstraction. Specifically, we introduce (2) the conic abstractions,\r\nwhich, partitioning the state space into appropriate (possibly non-uniform) cones, divide\r\ncurvy trajectories into relatively straight sections, suitable for polyhedral abstractions.\r\nFinally, we introduce (3) space-time interpolation, which, combining interval arithmetic\r\nand template refinement, computes appropriate (possibly non-uniform) time partitioning\r\nand template directions along spurious trajectories, so as to eliminate them.\r\nWe obtain sound and automatic methods for the reachability analysis over dense\r\nand unbounded time of convex hybrid automata and hybrid automata with linear ODE.\r\nWe build prototype tools and compare—favorably—our methods against the respective\r\nstate-of-the-art tools, on several benchmarks.","lang":"eng"}],"page":"132","citation":{"ieee":"M. Giacobbe, “Automatic time-unbounded reachability analysis of hybrid systems,” Institute of Science and Technology Austria, 2019.","apa":"Giacobbe, M. (2019). Automatic time-unbounded reachability analysis of hybrid systems. Institute of Science and Technology Austria. https://doi.org/10.15479/AT:ISTA:6894","ista":"Giacobbe M. 2019. Automatic time-unbounded reachability analysis of hybrid systems. Institute of Science and Technology Austria.","ama":"Giacobbe M. Automatic time-unbounded reachability analysis of hybrid systems. 2019. doi:10.15479/AT:ISTA:6894","chicago":"Giacobbe, Mirco. “Automatic Time-Unbounded Reachability Analysis of Hybrid Systems.” Institute of Science and Technology Austria, 2019. https://doi.org/10.15479/AT:ISTA:6894.","short":"M. Giacobbe, Automatic Time-Unbounded Reachability Analysis of Hybrid Systems, Institute of Science and Technology Austria, 2019.","mla":"Giacobbe, Mirco. Automatic Time-Unbounded Reachability Analysis of Hybrid Systems. Institute of Science and Technology Austria, 2019, doi:10.15479/AT:ISTA:6894."},"date_published":"2019-09-30T00:00:00Z","day":"30","has_accepted_license":"1","article_processing_charge":"No"},{"place":"Cham","type":"book","publist_id":"3340","abstract":[{"lang":"eng","text":"This book first explores the origins of this idea, grounded in theoretical work on temporal logic and automata. The editors and authors are among the world's leading researchers in this domain, and they contributed 32 chapters representing a thorough view of the development and application of the technique. Topics covered include binary decision diagrams, symbolic model checking, satisfiability modulo theories, partial-order reduction, abstraction, interpolation, concurrency, security protocols, games, probabilistic model checking, and process algebra, and chapters on the transfer of theory to industrial practice, property specification languages for hardware, and verification of real-time systems and hybrid systems.\r\n\r\nThe book will be valuable for researchers and graduate students engaged with the development of formal methods and verification tools."}],"publisher":"Springer Nature","department":[{"_id":"ToHe"}],"status":"public","publication_status":"published","title":"Handbook of Model Checking","user_id":"8b945eb4-e2f2-11eb-945a-df72226e66a9","_id":"3300","year":"2018","oa_version":"None","date_updated":"2021-12-21T10:49:36Z","date_created":"2018-12-11T12:02:32Z","edition":"1","author":[{"last_name":"Clarke","first_name":"Edmund M.","full_name":"Clarke, Edmund M."},{"full_name":"Henzinger, Thomas A","id":"40876CD8-F248-11E8-B48F-1D18A9856A87","orcid":"0000−0002−2985−7724","first_name":"Thomas A","last_name":"Henzinger"},{"full_name":"Veith, Helmut","first_name":"Helmut","last_name":"Veith"},{"first_name":"Roderick","last_name":"Bloem","full_name":"Bloem, Roderick"}],"scopus_import":"1","publication_identifier":{"eisbn":["978-3-319-10575-8"],"isbn":["978-3-319-10574-1"]},"article_processing_charge":"No","month":"06","day":"08","page":"XLVIII, 1212","quality_controlled":"1","citation":{"ista":"Clarke EM, Henzinger TA, Veith H, Bloem R. 2018. Handbook of Model Checking 1st ed., Cham: Springer Nature, XLVIII, 1212p.","ieee":"E. M. Clarke, T. A. Henzinger, H. Veith, and R. Bloem, Handbook of Model Checking, 1st ed. Cham: Springer Nature, 2018.","apa":"Clarke, E. M., Henzinger, T. A., Veith, H., & Bloem, R. (2018). Handbook of Model Checking (1st ed.). Cham: Springer Nature. https://doi.org/10.1007/978-3-319-10575-8","ama":"Clarke EM, Henzinger TA, Veith H, Bloem R. Handbook of Model Checking. 1st ed. Cham: Springer Nature; 2018. doi:10.1007/978-3-319-10575-8","chicago":"Clarke, Edmund M., Thomas A Henzinger, Helmut Veith, and Roderick Bloem. Handbook of Model Checking. 1st ed. Cham: Springer Nature, 2018. https://doi.org/10.1007/978-3-319-10575-8.","mla":"Clarke, Edmund M., et al. Handbook of Model Checking. 1st ed., Springer Nature, 2018, doi:10.1007/978-3-319-10575-8.","short":"E.M. Clarke, T.A. Henzinger, H. Veith, R. Bloem, Handbook of Model Checking, 1st ed., Springer Nature, Cham, 2018."},"language":[{"iso":"eng"}],"date_published":"2018-06-08T00:00:00Z","doi":"10.1007/978-3-319-10575-8"},{"title":"Introduction to model checking","status":"public","publication_status":"published","publisher":"Springer","editor":[{"full_name":"Henzinger, Thomas A","last_name":"Henzinger","first_name":"Thomas A"}],"department":[{"_id":"ToHe"}],"_id":"60","year":"2018","user_id":"3E5EF7F0-F248-11E8-B48F-1D18A9856A87","date_updated":"2021-01-12T08:05:35Z","date_created":"2018-12-11T11:44:25Z","oa_version":"None","author":[{"full_name":"Clarke, Edmund","first_name":"Edmund","last_name":"Clarke"},{"id":"40876CD8-F248-11E8-B48F-1D18A9856A87","orcid":"0000−0002−2985−7724","first_name":"Thomas A","last_name":"Henzinger","full_name":"Henzinger, Thomas A"},{"full_name":"Veith, Helmut","last_name":"Veith","first_name":"Helmut"}],"type":"book_chapter","abstract":[{"text":"Model checking is a computer-assisted method for the analysis of dynamical systems that can be modeled by state-transition systems. Drawing from research traditions in mathematical logic, programming languages, hardware design, and theoretical computer science, model checking is now widely used for the verification of hardware and software in industry. This chapter is an introduction and short survey of model checking. The chapter aims to motivate and link the individual chapters of the handbook, and to provide context for readers who are not familiar with model checking.","lang":"eng"}],"publist_id":"7994","quality_controlled":"1","page":"1 - 26","publication":"Handbook of Model Checking","citation":{"ista":"Clarke E, Henzinger TA, Veith H. 2018.Introduction to model checking. In: Handbook of Model Checking. , 1–26.","ieee":"E. Clarke, T. A. Henzinger, and H. Veith, “Introduction to model checking,” in Handbook of Model Checking, T. A. Henzinger, Ed. Springer, 2018, pp. 1–26.","apa":"Clarke, E., Henzinger, T. A., & Veith, H. (2018). Introduction to model checking. In T. A. 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Henzinger (Ed.), Handbook of Model Checking, Springer, 2018, pp. 1–26."},"language":[{"iso":"eng"}],"date_published":"2018-05-19T00:00:00Z","doi":"10.1007/978-3-319-10575-8_1","series_title":"Handbook of Model Checking","scopus_import":1,"day":"19","month":"05"},{"abstract":[{"lang":"eng","text":"Responsiveness—the requirement that every request to a system be eventually handled—is one of the fundamental liveness properties of a reactive system. Average response time is a quantitative measure for the responsiveness requirement used commonly in performance evaluation. We show how average response time can be computed on state-transition graphs, on Markov chains, and on game graphs. In all three cases, we give polynomial-time algorithms."}],"type":"book_chapter","alternative_title":["LNCS"],"file":[{"creator":"dernst","content_type":"application/pdf","file_size":516307,"file_name":"2018_PrinciplesModeling_Chatterjee.pdf","access_level":"open_access","date_created":"2019-11-19T08:22:18Z","date_updated":"2020-07-14T12:48:14Z","checksum":"9995c6ce6957333baf616fc4f20be597","file_id":"7053","relation":"main_file"}],"oa_version":"Submitted Version","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","_id":"86","status":"public","ddc":["000"],"title":"Computing average response time","intvolume":" 10760","day":"20","has_accepted_license":"1","scopus_import":1,"date_published":"2018-07-20T00:00:00Z","publication":"Principles of Modeling","citation":{"ama":"Chatterjee K, Henzinger TA, Otop J. Computing average response time. In: Lohstroh M, Derler P, Sirjani M, eds. Principles of Modeling. Vol 10760. Springer; 2018:143-161. doi:10.1007/978-3-319-95246-8_9","apa":"Chatterjee, K., Henzinger, T. A., & Otop, J. (2018). Computing average response time. In M. Lohstroh, P. Derler, & M. Sirjani (Eds.), Principles of Modeling (Vol. 10760, pp. 143–161). Springer. https://doi.org/10.1007/978-3-319-95246-8_9","ieee":"K. Chatterjee, T. A. Henzinger, and J. Otop, “Computing average response time,” in Principles of Modeling, vol. 10760, M. Lohstroh, P. Derler, and M. Sirjani, Eds. Springer, 2018, pp. 143–161.","ista":"Chatterjee K, Henzinger TA, Otop J. 2018.Computing average response time. In: Principles of Modeling. LNCS, vol. 10760, 143–161.","short":"K. Chatterjee, T.A. Henzinger, J. Otop, in:, M. Lohstroh, P. Derler, M. Sirjani (Eds.), Principles of Modeling, Springer, 2018, pp. 143–161.","mla":"Chatterjee, Krishnendu, et al. “Computing Average Response Time.” Principles of Modeling, edited by Marten Lohstroh et al., vol. 10760, Springer, 2018, pp. 143–61, doi:10.1007/978-3-319-95246-8_9.","chicago":"Chatterjee, Krishnendu, Thomas A Henzinger, and Jan Otop. “Computing Average Response Time.” In Principles of Modeling, edited by Marten Lohstroh, Patricia Derler, and Marjan Sirjani, 10760:143–61. Springer, 2018. https://doi.org/10.1007/978-3-319-95246-8_9."},"page":"143 - 161","file_date_updated":"2020-07-14T12:48:14Z","ec_funded":1,"publist_id":"7968","author":[{"full_name":"Chatterjee, Krishnendu","first_name":"Krishnendu","last_name":"Chatterjee","id":"2E5DCA20-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0002-4561-241X"},{"id":"40876CD8-F248-11E8-B48F-1D18A9856A87","orcid":"0000−0002−2985−7724","first_name":"Thomas A","last_name":"Henzinger","full_name":"Henzinger, Thomas A"},{"id":"2FC5DA74-F248-11E8-B48F-1D18A9856A87","first_name":"Jan","last_name":"Otop","full_name":"Otop, Jan"}],"date_created":"2018-12-11T11:44:33Z","date_updated":"2021-01-12T08:20:14Z","volume":10760,"acknowledgement":"This research was supported in part by the Austrian Science Fund (FWF) under grants S11402-N23, S11407-N23 (RiSE/SHiNE) and Z211-N23 (Wittgenstein Award), ERC Start grant (279307: Graph Games), Vienna Science and Technology Fund (WWTF) through project ICT15-003 and by the National Science Centre (NCN), Poland under grant 2014/15/D/ST6/04543.","year":"2018","publication_status":"published","publisher":"Springer","department":[{"_id":"KrCh"},{"_id":"ToHe"}],"editor":[{"full_name":"Lohstroh, Marten","first_name":"Marten","last_name":"Lohstroh"},{"first_name":"Patricia","last_name":"Derler","full_name":"Derler, Patricia"},{"full_name":"Sirjani, Marjan","first_name":"Marjan","last_name":"Sirjani"}],"month":"07","doi":"10.1007/978-3-319-95246-8_9","language":[{"iso":"eng"}],"oa":1,"quality_controlled":"1","project":[{"call_identifier":"FWF","name":"Rigorous Systems Engineering","_id":"25832EC2-B435-11E9-9278-68D0E5697425","grant_number":"S 11407_N23"},{"name":"Game Theory","call_identifier":"FWF","_id":"25863FF4-B435-11E9-9278-68D0E5697425","grant_number":"S11407"},{"name":"The Wittgenstein Prize","call_identifier":"FWF","_id":"25F42A32-B435-11E9-9278-68D0E5697425","grant_number":"Z211"},{"call_identifier":"FP7","name":"Quantitative Graph Games: Theory and Applications","grant_number":"279307","_id":"2581B60A-B435-11E9-9278-68D0E5697425"},{"grant_number":"ICT15-003","_id":"25892FC0-B435-11E9-9278-68D0E5697425","name":"Efficient Algorithms for Computer Aided Verification"}]},{"publication_identifier":{"issn":["1868-8969"]},"month":"08","doi":"10.4230/LIPICS.MFCS.2018.23","conference":{"name":"MFCS: Mathematical Foundations of Computer Science","location":"Liverpool, United Kingdom","start_date":"2018-08-27","end_date":"2018-08-31"},"language":[{"iso":"eng"}],"oa":1,"tmp":{"name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","short":"CC BY (4.0)","image":"/images/cc_by.png"},"project":[{"name":"Rigorous Systems Engineering","call_identifier":"FWF","_id":"25832EC2-B435-11E9-9278-68D0E5697425","grant_number":"S 11407_N23"},{"grant_number":"Z211","_id":"25F42A32-B435-11E9-9278-68D0E5697425","call_identifier":"FWF","name":"The Wittgenstein Prize"},{"grant_number":"M02369","_id":"264B3912-B435-11E9-9278-68D0E5697425","call_identifier":"FWF","name":"Formal Methods meets Algorithmic Game Theory"}],"quality_controlled":"1","file_date_updated":"2020-07-14T12:47:15Z","article_number":"23","related_material":{"record":[{"id":"963","relation":"earlier_version","status":"public"}]},"author":[{"full_name":"Avni, Guy","first_name":"Guy","last_name":"Avni","id":"463C8BC2-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0001-5588-8287"},{"full_name":"Guha, Shibashis","last_name":"Guha","first_name":"Shibashis"},{"full_name":"Kupferman, Orna","last_name":"Kupferman","first_name":"Orna"}],"volume":117,"date_updated":"2023-02-23T14:02:58Z","date_created":"2019-02-14T14:12:09Z","year":"2018","publisher":"Schloss Dagstuhl - Leibniz-Zentrum für Informatik","department":[{"_id":"ToHe"}],"publication_status":"published","article_processing_charge":"No","has_accepted_license":"1","day":"01","scopus_import":"1","date_published":"2018-08-01T00:00:00Z","citation":{"short":"G. Avni, S. Guha, O. Kupferman, in:, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2018.","mla":"Avni, Guy, et al. Timed Network Games with Clocks. Vol. 117, 23, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2018, doi:10.4230/LIPICS.MFCS.2018.23.","chicago":"Avni, Guy, Shibashis Guha, and Orna Kupferman. “Timed Network Games with Clocks,” Vol. 117. Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2018. https://doi.org/10.4230/LIPICS.MFCS.2018.23.","ama":"Avni G, Guha S, Kupferman O. Timed network games with clocks. In: Vol 117. Schloss Dagstuhl - Leibniz-Zentrum für Informatik; 2018. doi:10.4230/LIPICS.MFCS.2018.23","ieee":"G. Avni, S. Guha, and O. Kupferman, “Timed network games with clocks,” presented at the MFCS: Mathematical Foundations of Computer Science, Liverpool, United Kingdom, 2018, vol. 117.","apa":"Avni, G., Guha, S., & Kupferman, O. (2018). Timed network games with clocks (Vol. 117). Presented at the MFCS: Mathematical Foundations of Computer Science, Liverpool, United Kingdom: Schloss Dagstuhl - Leibniz-Zentrum für Informatik. https://doi.org/10.4230/LIPICS.MFCS.2018.23","ista":"Avni G, Guha S, Kupferman O. 2018. Timed network games with clocks. MFCS: Mathematical Foundations of Computer Science, LIPIcs, vol. 117, 23."},"abstract":[{"text":"Network games are widely used as a model for selfish resource-allocation problems. In the classicalmodel, each player selects a path connecting her source and target vertices. The cost of traversingan edge depends on theload; namely, number of players that traverse it. Thus, it abstracts the factthat different users may use a resource at different times and for different durations, which playsan important role in determining the costs of the users in reality. For example, when transmittingpackets in a communication network, routing traffic in a road network, or processing a task in aproduction system, actual sharing and congestion of resources crucially depends on time.In [13], we introducedtimed network games, which add a time component to network games.Each vertexvin the network is associated with a cost function, mapping the load onvto theprice that a player pays for staying invfor one time unit with this load. Each edge in thenetwork is guarded by the time intervals in which it can be traversed, which forces the players tospend time in the vertices. In this work we significantly extend the way time can be referred toin timed network games. In the model we study, the network is equipped withclocks, and, as intimed automata, edges are guarded by constraints on the values of the clocks, and their traversalmay involve a reset of some clocks. We argue that the stronger model captures many realisticnetworks. The addition of clocks breaks the techniques we developed in [13] and we developnew techniques in order to show that positive results on classic network games carry over to thestronger timed setting.","lang":"eng"}],"type":"conference","alternative_title":["LIPIcs"],"file":[{"creator":"dernst","content_type":"application/pdf","file_size":542889,"access_level":"open_access","file_name":"2018_LIPIcs_Avni.pdf","checksum":"41ab2ae9b63f5eb49fa995250c0ba128","date_created":"2019-02-14T14:22:04Z","date_updated":"2020-07-14T12:47:15Z","file_id":"6007","relation":"main_file"}],"oa_version":"Published Version","_id":"6005","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","intvolume":" 117","title":"Timed network games with clocks","ddc":["000"],"status":"public"},{"conference":{"location":"Beijing, China","start_date":"2018-09-04","end_date":"2018-09-07","name":"CONCUR: International Conference on Concurrency Theory"},"doi":"10.4230/LIPIcs.CONCUR.2018.21","language":[{"iso":"eng"}],"tmp":{"name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","short":"CC BY (4.0)","image":"/images/cc_by.png"},"oa":1,"quality_controlled":"1","project":[{"_id":"25F2ACDE-B435-11E9-9278-68D0E5697425","grant_number":"S11402-N23","name":"Rigorous Systems Engineering","call_identifier":"FWF"},{"name":"Moderne Concurrency Paradigms","call_identifier":"FWF","grant_number":"S11402-N23","_id":"25F5A88A-B435-11E9-9278-68D0E5697425"}],"month":"08","publication_identifier":{"issn":["18688969"]},"author":[{"id":"320FC952-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0001-7745-9117","first_name":"Bernhard","last_name":"Kragl","full_name":"Kragl, Bernhard"},{"full_name":"Qadeer, Shaz","last_name":"Qadeer","first_name":"Shaz"},{"full_name":"Henzinger, Thomas A","first_name":"Thomas A","last_name":"Henzinger","id":"40876CD8-F248-11E8-B48F-1D18A9856A87","orcid":"0000−0002−2985−7724"}],"related_material":{"record":[{"id":"6426","relation":"earlier_version","status":"public"},{"id":"8332","relation":"dissertation_contains","status":"public"}]},"date_created":"2018-12-11T11:44:48Z","date_updated":"2023-09-07T13:18:00Z","volume":118,"year":"2018","publication_status":"published","publisher":"Schloss Dagstuhl - Leibniz-Zentrum für Informatik","department":[{"_id":"ToHe"}],"file_date_updated":"2020-07-14T12:44:44Z","publist_id":"7790","article_number":"21","date_published":"2018-08-13T00:00:00Z","citation":{"mla":"Kragl, Bernhard, et al. Synchronizing the Asynchronous. Vol. 118, 21, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2018, doi:10.4230/LIPIcs.CONCUR.2018.21.","short":"B. Kragl, S. Qadeer, T.A. Henzinger, in:, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2018.","chicago":"Kragl, Bernhard, Shaz Qadeer, and Thomas A Henzinger. “Synchronizing the Asynchronous,” Vol. 118. Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2018. https://doi.org/10.4230/LIPIcs.CONCUR.2018.21.","ama":"Kragl B, Qadeer S, Henzinger TA. Synchronizing the asynchronous. In: Vol 118. Schloss Dagstuhl - Leibniz-Zentrum für Informatik; 2018. doi:10.4230/LIPIcs.CONCUR.2018.21","ista":"Kragl B, Qadeer S, Henzinger TA. 2018. Synchronizing the asynchronous. CONCUR: International Conference on Concurrency Theory, LIPIcs, vol. 118, 21.","ieee":"B. Kragl, S. Qadeer, and T. A. Henzinger, “Synchronizing the asynchronous,” presented at the CONCUR: International Conference on Concurrency Theory, Beijing, China, 2018, vol. 118.","apa":"Kragl, B., Qadeer, S., & Henzinger, T. A. (2018). Synchronizing the asynchronous (Vol. 118). Presented at the CONCUR: International Conference on Concurrency Theory, Beijing, China: Schloss Dagstuhl - Leibniz-Zentrum für Informatik. https://doi.org/10.4230/LIPIcs.CONCUR.2018.21"},"day":"13","has_accepted_license":"1","scopus_import":1,"pubrep_id":"1039","oa_version":"Published Version","file":[{"access_level":"open_access","file_name":"IST-2018-853-v2+2_concur2018.pdf","file_size":745438,"content_type":"application/pdf","creator":"system","relation":"main_file","file_id":"5368","checksum":"c90895f4c5fafc18ddc54d1c8848077e","date_created":"2018-12-12T10:18:46Z","date_updated":"2020-07-14T12:44:44Z"}],"_id":"133","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","ddc":["000"],"status":"public","title":"Synchronizing the asynchronous","intvolume":" 118","abstract":[{"text":"Synchronous programs are easy to specify because the side effects of an operation are finished by the time the invocation of the operation returns to the caller. Asynchronous programs, on the other hand, are difficult to specify because there are side effects due to pending computation scheduled as a result of the invocation of an operation. They are also difficult to verify because of the large number of possible interleavings of concurrent computation threads. We present synchronization, a new proof rule that simplifies the verification of asynchronous programs by introducing the fiction, for proof purposes, that asynchronous operations complete synchronously. Synchronization summarizes an asynchronous computation as immediate atomic effect. Modular verification is enabled via pending asynchronous calls in atomic summaries, and a complementary proof rule that eliminates pending asynchronous calls when components and their specifications are composed. We evaluate synchronization in the context of a multi-layer refinement verification methodology on a collection of benchmark programs.","lang":"eng"}],"type":"conference","alternative_title":["LIPIcs"]},{"editor":[{"first_name":"Dirk","last_name":"Beyer","full_name":"Beyer, Dirk"},{"first_name":"Marieke","last_name":"Huisman","full_name":"Huisman, Marieke"}],"department":[{"_id":"ToHe"}],"publisher":"Springer","publication_status":"published","year":"2018","volume":10806,"date_created":"2018-12-11T11:45:41Z","date_updated":"2023-09-08T11:52:02Z","related_material":{"record":[{"id":"10861","status":"public","relation":"later_version"}]},"author":[{"full_name":"Nickovic, Dejan","last_name":"Nickovic","first_name":"Dejan","id":"41BCEE5C-F248-11E8-B48F-1D18A9856A87"},{"full_name":"Lebeltel, Olivier","first_name":"Olivier","last_name":"Lebeltel"},{"first_name":"Oded","last_name":"Maler","full_name":"Maler, Oded"},{"full_name":"Ferrere, Thomas","id":"40960E6E-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0001-5199-3143","first_name":"Thomas","last_name":"Ferrere"},{"full_name":"Ulus, Dogan","first_name":"Dogan","last_name":"Ulus"}],"publist_id":"7582","file_date_updated":"2020-07-14T12:45:58Z","quality_controlled":"1","isi":1,"external_id":{"isi":["00445822600018"]},"tmp":{"name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","short":"CC BY (4.0)","image":"/images/cc_by.png"},"oa":1,"language":[{"iso":"eng"}],"doi":"10.1007/978-3-319-89963-3_18","conference":{"start_date":"2018-04-14","location":"Thessaloniki, Greece","end_date":"2018-04-20","name":"TACAS: Tools and Algorithms for the Construction and Analysis of Systems"},"month":"04","intvolume":" 10806","title":"AMT 2.0: Qualitative and quantitative trace analysis with extended signal temporal logic","ddc":["000"],"status":"public","user_id":"c635000d-4b10-11ee-a964-aac5a93f6ac1","_id":"299","file":[{"creator":"dernst","file_size":3267209,"content_type":"application/pdf","access_level":"open_access","file_name":"2018_LNCS_Nickovic.pdf","checksum":"e11db3b9c8e27a1c7d1c738cc5e4d25a","date_updated":"2020-07-14T12:45:58Z","date_created":"2019-02-06T07:33:05Z","file_id":"5928","relation":"main_file"}],"oa_version":"Published Version","alternative_title":["LNCS"],"type":"conference","abstract":[{"lang":"eng","text":"We introduce in this paper AMT 2.0 , a tool for qualitative and quantitative analysis of hybrid continuous and Boolean signals that combine numerical values and discrete events. The evaluation of the signals is based on rich temporal specifications expressed in extended Signal Temporal Logic (xSTL), which integrates Timed Regular Expressions (TRE) within Signal Temporal Logic (STL). The tool features qualitative monitoring (property satisfaction checking), trace diagnostics for explaining and justifying property violations and specification-driven measurement of quantitative features of the signal."}],"page":"303 - 319","citation":{"ama":"Nickovic D, Lebeltel O, Maler O, Ferrere T, Ulus D. AMT 2.0: Qualitative and quantitative trace analysis with extended signal temporal logic. In: Beyer D, Huisman M, eds. Vol 10806. Springer; 2018:303-319. doi:10.1007/978-3-319-89963-3_18","ista":"Nickovic D, Lebeltel O, Maler O, Ferrere T, Ulus D. 2018. AMT 2.0: Qualitative and quantitative trace analysis with extended signal temporal logic. TACAS: Tools and Algorithms for the Construction and Analysis of Systems, LNCS, vol. 10806, 303–319.","apa":"Nickovic, D., Lebeltel, O., Maler, O., Ferrere, T., & Ulus, D. (2018). AMT 2.0: Qualitative and quantitative trace analysis with extended signal temporal logic. In D. Beyer & M. Huisman (Eds.) (Vol. 10806, pp. 303–319). Presented at the TACAS: Tools and Algorithms for the Construction and Analysis of Systems, Thessaloniki, Greece: Springer. https://doi.org/10.1007/978-3-319-89963-3_18","ieee":"D. Nickovic, O. Lebeltel, O. Maler, T. Ferrere, and D. Ulus, “AMT 2.0: Qualitative and quantitative trace analysis with extended signal temporal logic,” presented at the TACAS: Tools and Algorithms for the Construction and Analysis of Systems, Thessaloniki, Greece, 2018, vol. 10806, pp. 303–319.","mla":"Nickovic, Dejan, et al. AMT 2.0: Qualitative and Quantitative Trace Analysis with Extended Signal Temporal Logic. Edited by Dirk Beyer and Marieke Huisman, vol. 10806, Springer, 2018, pp. 303–19, doi:10.1007/978-3-319-89963-3_18.","short":"D. Nickovic, O. Lebeltel, O. Maler, T. Ferrere, D. Ulus, in:, D. Beyer, M. Huisman (Eds.), Springer, 2018, pp. 303–319.","chicago":"Nickovic, Dejan, Olivier Lebeltel, Oded Maler, Thomas Ferrere, and Dogan Ulus. “AMT 2.0: Qualitative and Quantitative Trace Analysis with Extended Signal Temporal Logic.” edited by Dirk Beyer and Marieke Huisman, 10806:303–19. Springer, 2018. https://doi.org/10.1007/978-3-319-89963-3_18."},"date_published":"2018-04-14T00:00:00Z","scopus_import":"1","article_processing_charge":"No","has_accepted_license":"1","day":"14"},{"conference":{"name":"LICS: Logic in Computer Science","end_date":"2018-07-12","location":"Oxford, UK","start_date":"2018-07-09"},"doi":"10.1145/3209108.3209194","date_published":"2018-07-09T00:00:00Z","language":[{"iso":"eng"}],"citation":{"ieee":"T. Ferrere, T. A. Henzinger, and E. Saraç, “A theory of register monitors,” presented at the LICS: Logic in Computer Science, Oxford, UK, 2018, vol. Part F138033, pp. 394–403.","apa":"Ferrere, T., Henzinger, T. A., & Saraç, E. (2018). A theory of register monitors (Vol. Part F138033, pp. 394–403). Presented at the LICS: Logic in Computer Science, Oxford, UK: IEEE. https://doi.org/10.1145/3209108.3209194","ista":"Ferrere T, Henzinger TA, Saraç E. 2018. A theory of register monitors. LICS: Logic in Computer Science, ACM/IEEE Symposium on Logic in Computer Science, vol. Part F138033, 394–403.","ama":"Ferrere T, Henzinger TA, Saraç E. A theory of register monitors. In: Vol Part F138033. IEEE; 2018:394-403. doi:10.1145/3209108.3209194","chicago":"Ferrere, Thomas, Thomas A Henzinger, and Ege Saraç. “A Theory of Register Monitors,” Part F138033:394–403. IEEE, 2018. https://doi.org/10.1145/3209108.3209194.","short":"T. Ferrere, T.A. Henzinger, E. Saraç, in:, IEEE, 2018, pp. 394–403.","mla":"Ferrere, Thomas, et al. A Theory of Register Monitors. Vol. Part F138033, IEEE, 2018, pp. 394–403, doi:10.1145/3209108.3209194."},"external_id":{"isi":["000545262800041"]},"isi":1,"quality_controlled":"1","page":"394 - 403","day":"09","month":"07","article_processing_charge":"No","scopus_import":"1","author":[{"full_name":"Ferrere, Thomas","first_name":"Thomas","last_name":"Ferrere","id":"40960E6E-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0001-5199-3143"},{"full_name":"Henzinger, Thomas A","id":"40876CD8-F248-11E8-B48F-1D18A9856A87","orcid":"0000−0002−2985−7724","first_name":"Thomas A","last_name":"Henzinger"},{"full_name":"Saraç, Ege","last_name":"Saraç","first_name":"Ege"}],"date_updated":"2023-09-08T11:49:13Z","date_created":"2018-12-11T11:44:52Z","oa_version":"None","volume":"Part F138033","_id":"144","year":"2018","user_id":"c635000d-4b10-11ee-a964-aac5a93f6ac1","title":"A theory of register monitors","status":"public","publication_status":"published","publisher":"IEEE","department":[{"_id":"ToHe"}],"abstract":[{"text":"The task of a monitor is to watch, at run-time, the execution of a reactive system, and signal the occurrence of a safety violation in the observed sequence of events. While finite-state monitors have been studied extensively, in practice, monitoring software also makes use of unbounded memory. We define a model of automata equipped with integer-valued registers which can execute only a bounded number of instructions between consecutive events, and thus can form the theoretical basis for the study of infinite-state monitors. We classify these register monitors according to the number k of available registers, and the type of register instructions. In stark contrast to the theory of computability for register machines, we prove that for every k 1, monitors with k + 1 counters (with instruction set 〈+1, =〉) are strictly more expressive than monitors with k counters. We also show that adder monitors (with instruction set 〈1, +, =〉) are strictly more expressive than counter monitors, but are complete for monitoring all computable safety -languages for k = 6. Real-time monitors are further required to signal the occurrence of a safety violation as soon as it occurs. The expressiveness hierarchy for counter monitors carries over to real-time monitors. We then show that 2 adders cannot simulate 3 counters in real-time. Finally, we show that real-time adder monitors with inequalities are as expressive as real-time Turing machines.","lang":"eng"}],"publist_id":"7779","type":"conference","alternative_title":["ACM/IEEE Symposium on Logic in Computer Science"]},{"abstract":[{"text":"We describe a new algorithm for the parametric identification problem for signal temporal logic (STL), stated as follows. Given a densetime real-valued signal w and a parameterized temporal logic formula φ, compute the subset of the parameter space that renders the formula satisfied by the signal. Unlike previous solutions, which were based on search in the parameter space or quantifier elimination, our procedure works recursively on φ and computes the evolution over time of the set of valid parameter assignments. This procedure is similar to that of monitoring or computing the robustness of φ relative to w. Our implementation and experiments demonstrate that this approach can work well in practice.","lang":"eng"}],"type":"conference","alternative_title":["HSCC Proceedings"],"oa_version":"Submitted Version","file":[{"file_size":5900421,"content_type":"application/pdf","creator":"dernst","access_level":"open_access","file_name":"2018_HSCC_Bakhirkin.pdf","checksum":"81eabc96430e84336ea88310ac0a1ad0","date_updated":"2020-07-14T12:45:17Z","date_created":"2020-05-14T12:18:29Z","relation":"main_file","file_id":"7833"}],"user_id":"c635000d-4b10-11ee-a964-aac5a93f6ac1","_id":"182","title":"Efficient parametric identification for STL","status":"public","ddc":["000"],"day":"11","article_processing_charge":"No","has_accepted_license":"1","scopus_import":"1","date_published":"2018-04-11T00:00:00Z","publication":"Proceedings of the 21st International Conference on Hybrid Systems","citation":{"short":"A. Bakhirkin, T. Ferrere, O. Maler, in:, Proceedings of the 21st International Conference on Hybrid Systems, ACM, 2018, pp. 177–186.","mla":"Bakhirkin, Alexey, et al. “Efficient Parametric Identification for STL.” Proceedings of the 21st International Conference on Hybrid Systems, ACM, 2018, pp. 177–86, doi:10.1145/3178126.3178132.","chicago":"Bakhirkin, Alexey, Thomas Ferrere, and Oded Maler. “Efficient Parametric Identification for STL.” In Proceedings of the 21st International Conference on Hybrid Systems, 177–86. ACM, 2018. https://doi.org/10.1145/3178126.3178132.","ama":"Bakhirkin A, Ferrere T, Maler O. Efficient parametric identification for STL. In: Proceedings of the 21st International Conference on Hybrid Systems. ACM; 2018:177-186. doi:10.1145/3178126.3178132","apa":"Bakhirkin, A., Ferrere, T., & Maler, O. (2018). Efficient parametric identification for STL. In Proceedings of the 21st International Conference on Hybrid Systems (pp. 177–186). Porto, Portugal: ACM. https://doi.org/10.1145/3178126.3178132","ieee":"A. Bakhirkin, T. Ferrere, and O. Maler, “Efficient parametric identification for STL,” in Proceedings of the 21st International Conference on Hybrid Systems, Porto, Portugal, 2018, pp. 177–186.","ista":"Bakhirkin A, Ferrere T, Maler O. 2018. Efficient parametric identification for STL. Proceedings of the 21st International Conference on Hybrid Systems. HSCC: Hybrid Systems: Computation and Control, HSCC Proceedings, , 177–186."},"page":"177 - 186","file_date_updated":"2020-07-14T12:45:17Z","publist_id":"7739","author":[{"full_name":"Bakhirkin, Alexey","first_name":"Alexey","last_name":"Bakhirkin"},{"full_name":"Ferrere, Thomas","last_name":"Ferrere","first_name":"Thomas","orcid":"0000-0001-5199-3143","id":"40960E6E-F248-11E8-B48F-1D18A9856A87"},{"first_name":"Oded","last_name":"Maler","full_name":"Maler, Oded"}],"date_created":"2018-12-11T11:45:04Z","date_updated":"2023-09-11T13:30:51Z","year":"2018","publication_status":"published","publisher":"ACM","department":[{"_id":"ToHe"}],"month":"04","publication_identifier":{"isbn":["978-1-4503-5642-8 "]},"conference":{"name":"HSCC: Hybrid Systems: Computation and Control","location":"Porto, Portugal","start_date":"2018-04-11","end_date":"2018-04-13"},"doi":"10.1145/3178126.3178132","language":[{"iso":"eng"}],"external_id":{"isi":["000474781600020"]},"oa":1,"quality_controlled":"1","isi":1,"project":[{"_id":"25832EC2-B435-11E9-9278-68D0E5697425","grant_number":"S 11407_N23","name":"Rigorous Systems Engineering","call_identifier":"FWF"}]},{"oa_version":"Preprint","_id":"5788","user_id":"c635000d-4b10-11ee-a964-aac5a93f6ac1","intvolume":" 11316","title":"Infinite-duration poorman-bidding games","status":"public","abstract":[{"text":"In two-player games on graphs, the players move a token through a graph to produce an infinite path, which determines the winner or payoff of the game. Such games are central in formal verification since they model the interaction between a non-terminating system and its environment. We study bidding games in which the players bid for the right to move the token. Two bidding rules have been defined. In Richman bidding, in each round, the players simultaneously submit bids, and the higher bidder moves the token and pays the other player. Poorman bidding is similar except that the winner of the bidding pays the “bank” rather than the other player. While poorman reachability games have been studied before, we present, for the first time, results on infinite-duration poorman games. A central quantity in these games is the ratio between the two players’ initial budgets. The questions we study concern a necessary and sufficient ratio with which a player can achieve a goal. For reachability objectives, such threshold ratios are known to exist for both bidding rules. We show that the properties of poorman reachability games extend to complex qualitative objectives such as parity, similarly to the Richman case. Our most interesting results concern quantitative poorman games, namely poorman mean-payoff games, where we construct optimal strategies depending on the initial ratio, by showing a connection with random-turn based games. The connection in itself is interesting, because it does not hold for reachability poorman games. We also solve the complexity problems that arise in poorman bidding games.","lang":"eng"}],"type":"conference","alternative_title":["LNCS"],"date_published":"2018-11-21T00:00:00Z","citation":{"apa":"Avni, G., Henzinger, T. A., & Ibsen-Jensen, R. (2018). Infinite-duration poorman-bidding games (Vol. 11316, pp. 21–36). Presented at the 14th International Conference on Web and Internet Economics, WINE, Oxford, UK: Springer. https://doi.org/10.1007/978-3-030-04612-5_2","ieee":"G. Avni, T. A. Henzinger, and R. Ibsen-Jensen, “Infinite-duration poorman-bidding games,” presented at the 14th International Conference on Web and Internet Economics, WINE, Oxford, UK, 2018, vol. 11316, pp. 21–36.","ista":"Avni G, Henzinger TA, Ibsen-Jensen R. 2018. Infinite-duration poorman-bidding games. 14th International Conference on Web and Internet Economics, WINE, LNCS, vol. 11316, 21–36.","ama":"Avni G, Henzinger TA, Ibsen-Jensen R. Infinite-duration poorman-bidding games. In: Vol 11316. Springer; 2018:21-36. doi:10.1007/978-3-030-04612-5_2","chicago":"Avni, Guy, Thomas A Henzinger, and Rasmus Ibsen-Jensen. “Infinite-Duration Poorman-Bidding Games,” 11316:21–36. Springer, 2018. https://doi.org/10.1007/978-3-030-04612-5_2.","short":"G. Avni, T.A. Henzinger, R. Ibsen-Jensen, in:, Springer, 2018, pp. 21–36.","mla":"Avni, Guy, et al. Infinite-Duration Poorman-Bidding Games. Vol. 11316, Springer, 2018, pp. 21–36, doi:10.1007/978-3-030-04612-5_2."},"page":"21-36","article_processing_charge":"No","day":"21","scopus_import":"1","author":[{"full_name":"Avni, Guy","orcid":"0000-0001-5588-8287","id":"463C8BC2-F248-11E8-B48F-1D18A9856A87","last_name":"Avni","first_name":"Guy"},{"orcid":"0000−0002−2985−7724","id":"40876CD8-F248-11E8-B48F-1D18A9856A87","last_name":"Henzinger","first_name":"Thomas A","full_name":"Henzinger, Thomas A"},{"id":"3B699956-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0003-4783-0389","first_name":"Rasmus","last_name":"Ibsen-Jensen","full_name":"Ibsen-Jensen, Rasmus"}],"volume":11316,"date_created":"2018-12-30T22:59:14Z","date_updated":"2023-09-12T07:44:01Z","year":"2018","department":[{"_id":"ToHe"}],"publisher":"Springer","doi":"10.1007/978-3-030-04612-5_2","conference":{"name":"14th International Conference on Web and Internet Economics, WINE","end_date":"2018-12-17","start_date":"2018-12-15","location":"Oxford, UK"},"language":[{"iso":"eng"}],"oa":1,"main_file_link":[{"open_access":"1","url":"https://arxiv.org/abs/1804.04372"}],"external_id":{"arxiv":["1804.04372"],"isi":["000865933000002"]},"project":[{"call_identifier":"FWF","name":"The Wittgenstein Prize","_id":"25F42A32-B435-11E9-9278-68D0E5697425","grant_number":"Z211"},{"call_identifier":"FWF","name":"Rigorous Systems Engineering","_id":"25832EC2-B435-11E9-9278-68D0E5697425","grant_number":"S 11407_N23"},{"grant_number":"M02369","_id":"264B3912-B435-11E9-9278-68D0E5697425","name":"Formal Methods meets Algorithmic Game Theory","call_identifier":"FWF"}],"quality_controlled":"1","isi":1,"publication_identifier":{"issn":["03029743"],"isbn":["9783030046118"]},"month":"11"},{"abstract":[{"text":"We present layered concurrent programs, a compact and expressive notation for specifying refinement proofs of concurrent programs. A layered concurrent program specifies a sequence of connected concurrent programs, from most concrete to most abstract, such that common parts of different programs are written exactly once. These programs are expressed in the ordinary syntax of imperative concurrent programs using gated atomic actions, sequencing, choice, and (recursive) procedure calls. Each concurrent program is automatically extracted from the layered program. We reduce refinement to the safety of a sequence of concurrent checker programs, one each to justify the connection between every two consecutive concurrent programs. These checker programs are also automatically extracted from the layered program. Layered concurrent programs have been implemented in the CIVL verifier which has been successfully used for the verification of several complex concurrent programs.","lang":"eng"}],"alternative_title":["LNCS"],"type":"conference","file":[{"checksum":"c64fff560fe5a7532ec10626ad1c215e","date_updated":"2020-07-14T12:45:04Z","date_created":"2018-12-17T12:52:12Z","file_id":"5705","relation":"main_file","creator":"dernst","content_type":"application/pdf","file_size":1603844,"access_level":"open_access","file_name":"2018_LNCS_Kragl.pdf"}],"oa_version":"Published Version","intvolume":" 10981","title":"Layered Concurrent Programs","ddc":["000"],"status":"public","user_id":"c635000d-4b10-11ee-a964-aac5a93f6ac1","_id":"160","article_processing_charge":"No","has_accepted_license":"1","day":"18","scopus_import":"1","date_published":"2018-07-18T00:00:00Z","page":"79 - 102","citation":{"mla":"Kragl, Bernhard, and Shaz Qadeer. Layered Concurrent Programs. Vol. 10981, Springer, 2018, pp. 79–102, doi:10.1007/978-3-319-96145-3_5.","short":"B. Kragl, S. Qadeer, in:, Springer, 2018, pp. 79–102.","chicago":"Kragl, Bernhard, and Shaz Qadeer. “Layered Concurrent Programs,” 10981:79–102. Springer, 2018. https://doi.org/10.1007/978-3-319-96145-3_5.","ama":"Kragl B, Qadeer S. Layered Concurrent Programs. In: Vol 10981. Springer; 2018:79-102. doi:10.1007/978-3-319-96145-3_5","ista":"Kragl B, Qadeer S. 2018. Layered Concurrent Programs. CAV: Computer Aided Verification, LNCS, vol. 10981, 79–102.","ieee":"B. Kragl and S. Qadeer, “Layered Concurrent Programs,” presented at the CAV: Computer Aided Verification, Oxford, UK, 2018, vol. 10981, pp. 79–102.","apa":"Kragl, B., & Qadeer, S. (2018). Layered Concurrent Programs (Vol. 10981, pp. 79–102). Presented at the CAV: Computer Aided Verification, Oxford, UK: Springer. https://doi.org/10.1007/978-3-319-96145-3_5"},"publist_id":"7761","file_date_updated":"2020-07-14T12:45:04Z","volume":10981,"date_updated":"2023-09-13T08:45:09Z","date_created":"2018-12-11T11:44:57Z","related_material":{"record":[{"id":"8332","status":"public","relation":"dissertation_contains"}]},"author":[{"orcid":"0000-0001-7745-9117","id":"320FC952-F248-11E8-B48F-1D18A9856A87","last_name":"Kragl","first_name":"Bernhard","full_name":"Kragl, Bernhard"},{"full_name":"Qadeer, Shaz","first_name":"Shaz","last_name":"Qadeer"}],"department":[{"_id":"ToHe"}],"publisher":"Springer","publication_status":"published","year":"2018","month":"07","language":[{"iso":"eng"}],"doi":"10.1007/978-3-319-96145-3_5","conference":{"name":"CAV: Computer Aided Verification","end_date":"2018-07-17","start_date":"2018-07-14","location":"Oxford, UK"},"project":[{"_id":"25F42A32-B435-11E9-9278-68D0E5697425","grant_number":"Z211","name":"The Wittgenstein Prize","call_identifier":"FWF"},{"call_identifier":"FWF","name":"Rigorous Systems Engineering","grant_number":"S 11407_N23","_id":"25832EC2-B435-11E9-9278-68D0E5697425"}],"quality_controlled":"1","isi":1,"external_id":{"isi":["000491481600005"]},"tmp":{"name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","short":"CC BY (4.0)","image":"/images/cc_by.png"},"oa":1},{"date_published":"2018-04-11T00:00:00Z","citation":{"ama":"Bartocci E, Ferrere T, Manjunath N, Nickovic D. Localizing faults in simulink/stateflow models with STL. In: Association for Computing Machinery, Inc; 2018:197-206. doi:10.1145/3178126.3178131","ieee":"E. Bartocci, T. Ferrere, N. Manjunath, and D. Nickovic, “Localizing faults in simulink/stateflow models with STL,” presented at the HSCC: Hybrid Systems: Computation and Control, Porto, Portugal, 2018, pp. 197–206.","apa":"Bartocci, E., Ferrere, T., Manjunath, N., & Nickovic, D. (2018). Localizing faults in simulink/stateflow models with STL (pp. 197–206). Presented at the HSCC: Hybrid Systems: Computation and Control, Porto, Portugal: Association for Computing Machinery, Inc. https://doi.org/10.1145/3178126.3178131","ista":"Bartocci E, Ferrere T, Manjunath N, Nickovic D. 2018. Localizing faults in simulink/stateflow models with STL. HSCC: Hybrid Systems: Computation and Control, HSCC Proceedings, , 197–206.","short":"E. Bartocci, T. Ferrere, N. Manjunath, D. Nickovic, in:, Association for Computing Machinery, Inc, 2018, pp. 197–206.","mla":"Bartocci, Ezio, et al. Localizing Faults in Simulink/Stateflow Models with STL. Association for Computing Machinery, Inc, 2018, pp. 197–206, doi:10.1145/3178126.3178131.","chicago":"Bartocci, Ezio, Thomas Ferrere, Niveditha Manjunath, and Dejan Nickovic. “Localizing Faults in Simulink/Stateflow Models with STL,” 197–206. Association for Computing Machinery, Inc, 2018. https://doi.org/10.1145/3178126.3178131."},"page":"197 - 206","day":"11","article_processing_charge":"No","scopus_import":"1","oa_version":"None","user_id":"c635000d-4b10-11ee-a964-aac5a93f6ac1","_id":"183","status":"public","title":"Localizing faults in simulink/stateflow models with STL","abstract":[{"lang":"eng","text":"Fault-localization is considered to be a very tedious and time-consuming activity in the design of complex Cyber-Physical Systems (CPS). This laborious task essentially requires expert knowledge of the system in order to discover the cause of the fault. In this context, we propose a new procedure that AIDS designers in debugging Simulink/Stateflow hybrid system models, guided by Signal Temporal Logic (STL) specifications. The proposed method relies on three main ingredients: (1) a monitoring and a trace diagnostics procedure that checks whether a tested behavior satisfies or violates an STL specification, localizes time segments and interfaces variables contributing to the property violations; (2) a slicing procedure that maps these observable behavior segments to the internal states and transitions of the Simulink model; and (3) a spectrum-based fault-localization method that combines the previous analysis from multiple tests to identify the internal states and/or transitions that are the most likely to explain the fault. We demonstrate the applicability of our approach on two Simulink models from the automotive and the avionics domain."}],"type":"conference","alternative_title":["HSCC Proceedings"],"conference":{"location":"Porto, Portugal","start_date":"2018-04-11","end_date":"2018-04-13","name":"HSCC: Hybrid Systems: Computation and Control"},"doi":"10.1145/3178126.3178131","language":[{"iso":"eng"}],"external_id":{"isi":["000474781600022"]},"quality_controlled":"1","isi":1,"project":[{"_id":"25832EC2-B435-11E9-9278-68D0E5697425","grant_number":"S 11407_N23","name":"Rigorous Systems Engineering","call_identifier":"FWF"}],"month":"04","author":[{"full_name":"Bartocci, Ezio","first_name":"Ezio","last_name":"Bartocci"},{"last_name":"Ferrere","first_name":"Thomas","orcid":"0000-0001-5199-3143","id":"40960E6E-F248-11E8-B48F-1D18A9856A87","full_name":"Ferrere, Thomas"},{"first_name":"Niveditha","last_name":"Manjunath","full_name":"Manjunath, Niveditha"},{"first_name":"Dejan","last_name":"Nickovic","full_name":"Nickovic, Dejan"}],"date_updated":"2023-09-13T08:48:46Z","date_created":"2018-12-11T11:45:04Z","year":"2018","acknowledgement":"This work was partially supported by the Austrian Science Fund (FWF) under grants S11402-N23 and S11405-N23 (RiSE/SHiNE), the CPS/IoT project (HRSM), the EU ICT COST Action IC1402 on Run-time Verification beyond Monitoring (ARVI), the AMASS project (ECSEL 692474), and the ENABLE-S3 project (ECSEL 692455). The CPS/IoT project receives support from the Austrian government through the Federal Ministry of Science, Research and Economy (BMWFW) in the funding program Hochschulraum-Strukturmittel (HRSM) 2016. The ECSEL Joint Undertaking receives support from the European Union’s Horizon 2020 research and innovation programme and Austria, Denmark, Germany, Finland, Czech Republic, Italy, Spain, Portugal, Poland, Ireland, Belgium, France, Netherlands, United Kingdom, Slovakia, Norway.","publication_status":"published","department":[{"_id":"ToHe"}],"publisher":"Association for Computing Machinery, Inc","publist_id":"7738"},{"intvolume":" 11022","title":"Monitoring temporal logic with clock variables","status":"public","ddc":["000"],"user_id":"c635000d-4b10-11ee-a964-aac5a93f6ac1","_id":"81","file":[{"file_id":"8638","relation":"main_file","date_updated":"2020-10-09T06:24:21Z","date_created":"2020-10-09T06:24:21Z","success":1,"checksum":"e5d81c9b50a6bd9d8a2c16953aad7e23","file_name":"2018_LNCS_Elgyuett.pdf","access_level":"open_access","creator":"dernst","content_type":"application/pdf","file_size":537219}],"oa_version":"Submitted Version","alternative_title":["LNCS"],"type":"conference","abstract":[{"lang":"eng","text":"We solve the offline monitoring problem for timed propositional temporal logic (TPTL), interpreted over dense-time Boolean signals. The variant of TPTL we consider extends linear temporal logic (LTL) with clock variables and reset quantifiers, providing a mechanism to specify real-time constraints. We first describe a general monitoring algorithm based on an exhaustive computation of the set of satisfying clock assignments as a finite union of zones. We then propose a specialized monitoring algorithm for the one-variable case using a partition of the time domain based on the notion of region equivalence, whose complexity is linear in the length of the signal, thereby generalizing a known result regarding the monitoring of metric temporal logic (MTL). The region and zone representations of time constraints are known from timed automata verification and can also be used in the discrete-time case. Our prototype implementation appears to outperform previous discrete-time implementations of TPTL monitoring,"}],"page":"53 - 70","citation":{"ama":"Elgyütt A, Ferrere T, Henzinger TA. Monitoring temporal logic with clock variables. In: Vol 11022. Springer; 2018:53-70. doi:10.1007/978-3-030-00151-3_4","apa":"Elgyütt, A., Ferrere, T., & Henzinger, T. A. (2018). Monitoring temporal logic with clock variables (Vol. 11022, pp. 53–70). Presented at the FORMATS: Formal Modeling and Analysis of Timed Systems, Beijing, China: Springer. https://doi.org/10.1007/978-3-030-00151-3_4","ieee":"A. Elgyütt, T. Ferrere, and T. A. Henzinger, “Monitoring temporal logic with clock variables,” presented at the FORMATS: Formal Modeling and Analysis of Timed Systems, Beijing, China, 2018, vol. 11022, pp. 53–70.","ista":"Elgyütt A, Ferrere T, Henzinger TA. 2018. Monitoring temporal logic with clock variables. FORMATS: Formal Modeling and Analysis of Timed Systems, LNCS, vol. 11022, 53–70.","short":"A. Elgyütt, T. Ferrere, T.A. Henzinger, in:, Springer, 2018, pp. 53–70.","mla":"Elgyütt, Adrian, et al. Monitoring Temporal Logic with Clock Variables. Vol. 11022, Springer, 2018, pp. 53–70, doi:10.1007/978-3-030-00151-3_4.","chicago":"Elgyütt, Adrian, Thomas Ferrere, and Thomas A Henzinger. “Monitoring Temporal Logic with Clock Variables,” 11022:53–70. Springer, 2018. https://doi.org/10.1007/978-3-030-00151-3_4."},"date_published":"2018-08-26T00:00:00Z","scopus_import":"1","has_accepted_license":"1","article_processing_charge":"No","day":"26","department":[{"_id":"ToHe"}],"publisher":"Springer","publication_status":"published","year":"2018","volume":11022,"date_created":"2018-12-11T11:44:31Z","date_updated":"2023-09-13T08:58:34Z","author":[{"full_name":"Elgyütt, Adrian","first_name":"Adrian","last_name":"Elgyütt","id":"4A2E9DBA-F248-11E8-B48F-1D18A9856A87"},{"full_name":"Ferrere, Thomas","id":"40960E6E-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0001-5199-3143","first_name":"Thomas","last_name":"Ferrere"},{"orcid":"0000−0002−2985−7724","id":"40876CD8-F248-11E8-B48F-1D18A9856A87","last_name":"Henzinger","first_name":"Thomas A","full_name":"Henzinger, Thomas A"}],"publist_id":"7973","file_date_updated":"2020-10-09T06:24:21Z","project":[{"call_identifier":"FWF","name":"Moderne Concurrency Paradigms","_id":"25F5A88A-B435-11E9-9278-68D0E5697425","grant_number":"S11402-N23"},{"call_identifier":"FWF","name":"The Wittgenstein Prize","grant_number":"Z211","_id":"25F42A32-B435-11E9-9278-68D0E5697425"}],"quality_controlled":"1","isi":1,"oa":1,"external_id":{"isi":["000884993200004"]},"language":[{"iso":"eng"}],"doi":"10.1007/978-3-030-00151-3_4","conference":{"name":"FORMATS: Formal Modeling and Analysis of Timed Systems","location":"Beijing, China","start_date":"2018-09-04","end_date":"2018-09-06"},"month":"08"},{"scopus_import":"1","article_processing_charge":"No","has_accepted_license":"1","day":"26","citation":{"chicago":"Bakhirkin, Alexey, Thomas Ferrere, Dejan Nickovic, Oded Maler, and Eugene Asarin. “Online Timed Pattern Matching Using Automata,” 11022:215–32. Springer, 2018. https://doi.org/10.1007/978-3-030-00151-3_13.","mla":"Bakhirkin, Alexey, et al. Online Timed Pattern Matching Using Automata. Vol. 11022, Springer, 2018, pp. 215–32, doi:10.1007/978-3-030-00151-3_13.","short":"A. Bakhirkin, T. Ferrere, D. Nickovic, O. Maler, E. Asarin, in:, Springer, 2018, pp. 215–232.","ista":"Bakhirkin A, Ferrere T, Nickovic D, Maler O, Asarin E. 2018. Online timed pattern matching using automata. FORMATS: Formal Modeling and Analysis of Timed Systems, LNCS, vol. 11022, 215–232.","apa":"Bakhirkin, A., Ferrere, T., Nickovic, D., Maler, O., & Asarin, E. (2018). Online timed pattern matching using automata (Vol. 11022, pp. 215–232). Presented at the FORMATS: Formal Modeling and Analysis of Timed Systems, Bejing, China: Springer. https://doi.org/10.1007/978-3-030-00151-3_13","ieee":"A. Bakhirkin, T. Ferrere, D. Nickovic, O. Maler, and E. Asarin, “Online timed pattern matching using automata,” presented at the FORMATS: Formal Modeling and Analysis of Timed Systems, Bejing, China, 2018, vol. 11022, pp. 215–232.","ama":"Bakhirkin A, Ferrere T, Nickovic D, Maler O, Asarin E. Online timed pattern matching using automata. In: Vol 11022. Springer; 2018:215-232. doi:10.1007/978-3-030-00151-3_13"},"page":"215 - 232","date_published":"2018-08-26T00:00:00Z","type":"conference","alternative_title":["LNCS"],"abstract":[{"lang":"eng","text":"We provide a procedure for detecting the sub-segments of an incrementally observed Boolean signal ω that match a given temporal pattern ϕ. As a pattern specification language, we use timed regular expressions, a formalism well-suited for expressing properties of concurrent asynchronous behaviors embedded in metric time. We construct a timed automaton accepting the timed language denoted by ϕ and modify it slightly for the purpose of matching. We then apply zone-based reachability computation to this automaton while it reads ω, and retrieve all the matching segments from the results. Since the procedure is automaton based, it can be applied to patterns specified by other formalisms such as timed temporal logics reducible to timed automata or directly encoded as timed automata. The procedure has been implemented and its performance on synthetic examples is demonstrated."}],"_id":"78","user_id":"c635000d-4b10-11ee-a964-aac5a93f6ac1","intvolume":" 11022","status":"public","title":"Online timed pattern matching using automata","ddc":["000"],"file":[{"checksum":"436b7574934324cfa7d1d3986fddc65b","date_updated":"2020-07-14T12:48:03Z","date_created":"2020-05-14T11:34:34Z","file_id":"7831","relation":"main_file","creator":"dernst","content_type":"application/pdf","file_size":374851,"access_level":"open_access","file_name":"2018_LNCS_Bakhirkin.pdf"}],"oa_version":"Submitted Version","publication_identifier":{"isbn":["978-3-030-00150-6"]},"month":"08","oa":1,"external_id":{"isi":["000884993200013"]},"project":[{"grant_number":"S 11407_N23","_id":"25832EC2-B435-11E9-9278-68D0E5697425","call_identifier":"FWF","name":"Rigorous Systems Engineering"},{"_id":"25F42A32-B435-11E9-9278-68D0E5697425","grant_number":"Z211","name":"The Wittgenstein Prize","call_identifier":"FWF"}],"isi":1,"quality_controlled":"1","doi":"10.1007/978-3-030-00151-3_13","conference":{"end_date":"2018-09-06","start_date":"2018-09-04","location":"Bejing, China","name":"FORMATS: Formal Modeling and Analysis of Timed Systems"},"language":[{"iso":"eng"}],"publist_id":"7976","file_date_updated":"2020-07-14T12:48:03Z","year":"2018","department":[{"_id":"ToHe"}],"publisher":"Springer","publication_status":"published","author":[{"last_name":"Bakhirkin","first_name":"Alexey","full_name":"Bakhirkin, Alexey"},{"full_name":"Ferrere, Thomas","first_name":"Thomas","last_name":"Ferrere","id":"40960E6E-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0001-5199-3143"},{"first_name":"Dejan","last_name":"Nickovic","full_name":"Nickovic, Dejan"},{"last_name":"Maler","first_name":"Oded","full_name":"Maler, Oded"},{"full_name":"Asarin, Eugene","first_name":"Eugene","last_name":"Asarin"}],"volume":11022,"date_updated":"2023-09-13T09:35:46Z","date_created":"2018-12-11T11:44:31Z"},{"oa":1,"external_id":{"isi":["000548912200004"],"arxiv":["1806.05126"]},"main_file_link":[{"url":"https://arxiv.org/abs/1806.05126","open_access":"1"}],"isi":1,"quality_controlled":"1","conference":{"location":"Beijing, China","start_date":"2018-09-04","end_date":"2018-09-07","name":"QEST: Quantitative Evaluation of Systems"},"doi":"10.1007/978-3-319-99154-2_4","language":[{"iso":"eng"}],"month":"08","year":"2018","publication_status":"published","publisher":"Springer","department":[{"_id":"KrCh"},{"_id":"ToHe"}],"author":[{"last_name":"Arming","first_name":"Sebastian","full_name":"Arming, Sebastian"},{"full_name":"Bartocci, Ezio","first_name":"Ezio","last_name":"Bartocci"},{"first_name":"Krishnendu","last_name":"Chatterjee","id":"2E5DCA20-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0002-4561-241X","full_name":"Chatterjee, Krishnendu"},{"last_name":"Katoen","first_name":"Joost P","id":"4524F760-F248-11E8-B48F-1D18A9856A87","full_name":"Katoen, Joost P"},{"first_name":"Ana","last_name":"Sokolova","full_name":"Sokolova, Ana"}],"date_updated":"2023-09-13T09:38:28Z","date_created":"2018-12-11T11:44:31Z","volume":11024,"publist_id":"7975","citation":{"ieee":"S. Arming, E. Bartocci, K. Chatterjee, J. P. Katoen, and A. Sokolova, “Parameter-independent strategies for pMDPs via POMDPs,” presented at the QEST: Quantitative Evaluation of Systems, Beijing, China, 2018, vol. 11024, pp. 53–70.","apa":"Arming, S., Bartocci, E., Chatterjee, K., Katoen, J. P., & Sokolova, A. (2018). Parameter-independent strategies for pMDPs via POMDPs (Vol. 11024, pp. 53–70). Presented at the QEST: Quantitative Evaluation of Systems, Beijing, China: Springer. https://doi.org/10.1007/978-3-319-99154-2_4","ista":"Arming S, Bartocci E, Chatterjee K, Katoen JP, Sokolova A. 2018. Parameter-independent strategies for pMDPs via POMDPs. QEST: Quantitative Evaluation of Systems, LNCS, vol. 11024, 53–70.","ama":"Arming S, Bartocci E, Chatterjee K, Katoen JP, Sokolova A. Parameter-independent strategies for pMDPs via POMDPs. In: Vol 11024. Springer; 2018:53-70. doi:10.1007/978-3-319-99154-2_4","chicago":"Arming, Sebastian, Ezio Bartocci, Krishnendu Chatterjee, Joost P Katoen, and Ana Sokolova. “Parameter-Independent Strategies for PMDPs via POMDPs,” 11024:53–70. Springer, 2018. https://doi.org/10.1007/978-3-319-99154-2_4.","short":"S. Arming, E. Bartocci, K. Chatterjee, J.P. Katoen, A. Sokolova, in:, Springer, 2018, pp. 53–70.","mla":"Arming, Sebastian, et al. Parameter-Independent Strategies for PMDPs via POMDPs. Vol. 11024, Springer, 2018, pp. 53–70, doi:10.1007/978-3-319-99154-2_4."},"page":"53-70","date_published":"2018-08-15T00:00:00Z","scopus_import":"1","day":"15","article_processing_charge":"No","user_id":"c635000d-4b10-11ee-a964-aac5a93f6ac1","_id":"79","status":"public","title":"Parameter-independent strategies for pMDPs via POMDPs","intvolume":" 11024","oa_version":"Preprint","type":"conference","alternative_title":["LNCS"],"abstract":[{"text":"Markov Decision Processes (MDPs) are a popular class of models suitable for solving control decision problems in probabilistic reactive systems. We consider parametric MDPs (pMDPs) that include parameters in some of the transition probabilities to account for stochastic uncertainties of the environment such as noise or input disturbances. We study pMDPs with reachability objectives where the parameter values are unknown and impossible to measure directly during execution, but there is a probability distribution known over the parameter values. We study for the first time computing parameter-independent strategies that are expectation optimal, i.e., optimize the expected reachability probability under the probability distribution over the parameters. We present an encoding of our problem to partially observable MDPs (POMDPs), i.e., a reduction of our problem to computing optimal strategies in POMDPs. We evaluate our method experimentally on several benchmarks: a motivating (repeated) learner model; a series of benchmarks of varying configurations of a robot moving on a grid; and a consensus protocol.","lang":"eng"}]},{"abstract":[{"lang":"eng","text":"We address the problem of analyzing the reachable set of a polynomial nonlinear continuous system by over-approximating the flowpipe of its dynamics. The common approach to tackle this problem is to perform a numerical integration over a given time horizon based on Taylor expansion and interval arithmetic. However, this method results to be very conservative when there is a large difference in speed between trajectories as time progresses. In this paper, we propose to use combinations of barrier functions, which we call piecewise barrier tube (PBT), to over-approximate flowpipe. The basic idea of PBT is that for each segment of a flowpipe, a coarse box which is big enough to contain the segment is constructed using sampled simulation and then in the box we compute by linear programming a set of barrier functions (called barrier tube or BT for short) which work together to form a tube surrounding the flowpipe. The benefit of using PBT is that (1) BT is independent of time and hence can avoid being stretched and deformed by time; and (2) a small number of BTs can form a tight over-approximation for the flowpipe, which means that the computation required to decide whether the BTs intersect the unsafe set can be reduced significantly. We implemented a prototype called PBTS in C++. Experiments on some benchmark systems show that our approach is effective."}],"alternative_title":["LNCS"],"type":"conference","oa_version":"Published Version","file":[{"creator":"dernst","file_size":5591566,"content_type":"application/pdf","file_name":"2018_LNCS_Kong.pdf","access_level":"open_access","date_updated":"2020-07-14T12:44:53Z","date_created":"2018-12-17T15:57:06Z","checksum":"fd95e8026deacef3dc752a733bb9355f","file_id":"5718","relation":"main_file"}],"status":"public","title":"Reachable set over-approximation for nonlinear systems using piecewise barrier tubes","ddc":["000"],"intvolume":" 10981","user_id":"c635000d-4b10-11ee-a964-aac5a93f6ac1","_id":"142","day":"18","article_processing_charge":"No","has_accepted_license":"1","scopus_import":"1","date_published":"2018-07-18T00:00:00Z","page":"449 - 467","citation":{"short":"H. Kong, E. Bartocci, T.A. Henzinger, in:, Springer, 2018, pp. 449–467.","mla":"Kong, Hui, et al. Reachable Set Over-Approximation for Nonlinear Systems Using Piecewise Barrier Tubes. Vol. 10981, Springer, 2018, pp. 449–67, doi:10.1007/978-3-319-96145-3_24.","chicago":"Kong, Hui, Ezio Bartocci, and Thomas A Henzinger. “Reachable Set Over-Approximation for Nonlinear Systems Using Piecewise Barrier Tubes,” 10981:449–67. Springer, 2018. https://doi.org/10.1007/978-3-319-96145-3_24.","ama":"Kong H, Bartocci E, Henzinger TA. Reachable set over-approximation for nonlinear systems using piecewise barrier tubes. In: Vol 10981. Springer; 2018:449-467. doi:10.1007/978-3-319-96145-3_24","ieee":"H. Kong, E. Bartocci, and T. A. Henzinger, “Reachable set over-approximation for nonlinear systems using piecewise barrier tubes,” presented at the CAV: Computer Aided Verification, Oxford, United Kingdom, 2018, vol. 10981, pp. 449–467.","apa":"Kong, H., Bartocci, E., & Henzinger, T. A. (2018). Reachable set over-approximation for nonlinear systems using piecewise barrier tubes (Vol. 10981, pp. 449–467). Presented at the CAV: Computer Aided Verification, Oxford, United Kingdom: Springer. https://doi.org/10.1007/978-3-319-96145-3_24","ista":"Kong H, Bartocci E, Henzinger TA. 2018. Reachable set over-approximation for nonlinear systems using piecewise barrier tubes. CAV: Computer Aided Verification, LNCS, vol. 10981, 449–467."},"file_date_updated":"2020-07-14T12:44:53Z","publist_id":"7781","date_created":"2018-12-11T11:44:51Z","date_updated":"2023-09-15T12:12:08Z","volume":10981,"author":[{"first_name":"Hui","last_name":"Kong","id":"3BDE25AA-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0002-3066-6941","full_name":"Kong, Hui"},{"full_name":"Bartocci, Ezio","last_name":"Bartocci","first_name":"Ezio"},{"full_name":"Henzinger, Thomas A","last_name":"Henzinger","first_name":"Thomas A","orcid":"0000−0002−2985−7724","id":"40876CD8-F248-11E8-B48F-1D18A9856A87"}],"publication_status":"published","publisher":"Springer","department":[{"_id":"ToHe"}],"year":"2018","acknowledgement":"Austrian Science Fund FWF: S11402-N23, S11405-N23, Z211-N32","month":"07","language":[{"iso":"eng"}],"conference":{"location":"Oxford, United Kingdom","start_date":"2018-07-14","end_date":"2018-07-17","name":"CAV: Computer Aided Verification"},"doi":"10.1007/978-3-319-96145-3_24","isi":1,"quality_controlled":"1","project":[{"call_identifier":"FWF","name":"Rigorous Systems Engineering","_id":"25832EC2-B435-11E9-9278-68D0E5697425","grant_number":"S 11407_N23"},{"call_identifier":"FWF","name":"The Wittgenstein Prize","grant_number":"Z211","_id":"25F42A32-B435-11E9-9278-68D0E5697425"}],"tmp":{"name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","short":"CC BY (4.0)","image":"/images/cc_by.png"},"oa":1,"external_id":{"isi":["000491481600024"]}},{"oa_version":"None","intvolume":" 19","status":"public","title":"Safety-assured model-driven design of the multifunction vehicle bus controller","_id":"434","user_id":"c635000d-4b10-11ee-a964-aac5a93f6ac1","issue":"10","abstract":[{"lang":"eng","text":"In this paper, we present a formal model-driven design approach to establish a safety-assured implementation of multifunction vehicle bus controller (MVBC), which controls the data transmission among the devices of the vehicle. First, the generic models and safety requirements described in International Electrotechnical Commission Standard 61375 are formalized as time automata and timed computation tree logic formulas, respectively. With model checking tool Uppaal, we verify whether or not the constructed timed automata satisfy the formulas and several logic inconsistencies in the original standard are detected and corrected. Then, we apply the code generation tool Times to generate C code from the verified model, which is later synthesized into a real MVBC chip, with some handwriting glue code. Furthermore, the runtime verification tool RMOR is applied on the integrated code, to verify some safety requirements that cannot be formalized on the timed automata. For evaluation, we compare the proposed approach with existing MVBC design methods, such as BeagleBone, Galsblock, and Simulink. Experiments show that more ambiguousness or bugs in the standard are detected during Uppaal verification, and the generated code of Times outperforms the C code generated by others in terms of the synthesized binary code size. The errors in the standard have been confirmed and the resulting MVBC has been deployed in the real train communication network."}],"type":"journal_article","date_published":"2018-01-01T00:00:00Z","page":"3320 - 3333","citation":{"apa":"Jiang, Y., Liu, H., Song, H., Kong, H., Wang, R., Guan, Y., & Sha, L. (2018). Safety-assured model-driven design of the multifunction vehicle bus controller. IEEE Transactions on Intelligent Transportation Systems. IEEE. https://doi.org/10.1109/TITS.2017.2778077","ieee":"Y. Jiang et al., “Safety-assured model-driven design of the multifunction vehicle bus controller,” IEEE Transactions on Intelligent Transportation Systems, vol. 19, no. 10. IEEE, pp. 3320–3333, 2018.","ista":"Jiang Y, Liu H, Song H, Kong H, Wang R, Guan Y, Sha L. 2018. Safety-assured model-driven design of the multifunction vehicle bus controller. IEEE Transactions on Intelligent Transportation Systems. 19(10), 3320–3333.","ama":"Jiang Y, Liu H, Song H, et al. Safety-assured model-driven design of the multifunction vehicle bus controller. IEEE Transactions on Intelligent Transportation Systems. 2018;19(10):3320-3333. doi:10.1109/TITS.2017.2778077","chicago":"Jiang, Yu, Han Liu, Huobing Song, Hui Kong, Rui Wang, Yong Guan, and Lui Sha. “Safety-Assured Model-Driven Design of the Multifunction Vehicle Bus Controller.” IEEE Transactions on Intelligent Transportation Systems. IEEE, 2018. https://doi.org/10.1109/TITS.2017.2778077.","short":"Y. Jiang, H. Liu, H. Song, H. Kong, R. Wang, Y. Guan, L. Sha, IEEE Transactions on Intelligent Transportation Systems 19 (2018) 3320–3333.","mla":"Jiang, Yu, et al. “Safety-Assured Model-Driven Design of the Multifunction Vehicle Bus Controller.” IEEE Transactions on Intelligent Transportation Systems, vol. 19, no. 10, IEEE, 2018, pp. 3320–33, doi:10.1109/TITS.2017.2778077."},"publication":"IEEE Transactions on Intelligent Transportation Systems","article_processing_charge":"No","day":"01","scopus_import":"1","volume":19,"date_updated":"2023-09-18T08:12:49Z","date_created":"2018-12-11T11:46:27Z","related_material":{"record":[{"relation":"earlier_version","status":"public","id":"1205"}]},"author":[{"last_name":"Jiang","first_name":"Yu","full_name":"Jiang, Yu"},{"full_name":"Liu, Han","first_name":"Han","last_name":"Liu"},{"last_name":"Song","first_name":"Huobing","full_name":"Song, Huobing"},{"full_name":"Kong, Hui","id":"3BDE25AA-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0002-3066-6941","first_name":"Hui","last_name":"Kong"},{"first_name":"Rui","last_name":"Wang","full_name":"Wang, Rui"},{"full_name":"Guan, Yong","first_name":"Yong","last_name":"Guan"},{"full_name":"Sha, Lui","first_name":"Lui","last_name":"Sha"}],"publisher":"IEEE","department":[{"_id":"ToHe"}],"publication_status":"published","year":"2018","publist_id":"7389","language":[{"iso":"eng"}],"doi":"10.1109/TITS.2017.2778077","quality_controlled":"1","isi":1,"external_id":{"isi":["000446651100020"]},"month":"01"},{"department":[{"_id":"ToHe"}],"publisher":"Springer","publication_status":"published","year":"2018","volume":10981,"date_updated":"2023-09-19T09:30:43Z","date_created":"2018-12-11T11:44:50Z","related_material":{"record":[{"relation":"dissertation_contains","status":"public","id":"6894"}]},"author":[{"last_name":"Frehse","first_name":"Goran","full_name":"Frehse, Goran"},{"full_name":"Giacobbe, Mirco","id":"3444EA5E-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0001-8180-0904","first_name":"Mirco","last_name":"Giacobbe"},{"id":"40876CD8-F248-11E8-B48F-1D18A9856A87","orcid":"0000−0002−2985−7724","first_name":"Thomas A","last_name":"Henzinger","full_name":"Henzinger, Thomas A"}],"publist_id":"7783","file_date_updated":"2020-07-14T12:44:50Z","project":[{"call_identifier":"FWF","name":"Rigorous Systems Engineering","_id":"25832EC2-B435-11E9-9278-68D0E5697425","grant_number":"S 11407_N23"},{"name":"Moderne Concurrency Paradigms","call_identifier":"FWF","_id":"25F5A88A-B435-11E9-9278-68D0E5697425","grant_number":"S11402-N23"}],"quality_controlled":"1","isi":1,"tmp":{"name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","short":"CC BY (4.0)","image":"/images/cc_by.png"},"external_id":{"isi":["000491481600025"]},"oa":1,"language":[{"iso":"eng"}],"doi":"10.1007/978-3-319-96145-3_25","conference":{"start_date":"2018-07-14","location":"Oxford, United Kingdom","end_date":"2018-07-17","name":"CAV: Computer Aided Verification"},"publication_identifier":{"issn":["03029743"]},"month":"07","intvolume":" 10981","status":"public","title":"Space-time interpolants","ddc":["005"],"_id":"140","user_id":"c635000d-4b10-11ee-a964-aac5a93f6ac1","file":[{"file_id":"5310","relation":"main_file","checksum":"6dca832f575d6b3f0ea9dff56f579142","date_updated":"2020-07-14T12:44:50Z","date_created":"2018-12-12T10:17:53Z","access_level":"open_access","file_name":"IST-2018-1010-v1+1_space-time_interpolants.pdf","creator":"system","file_size":563710,"content_type":"application/pdf"}],"oa_version":"Published Version","pubrep_id":"1010","alternative_title":["LNCS"],"type":"conference","abstract":[{"text":"Reachability analysis is difficult for hybrid automata with affine differential equations, because the reach set needs to be approximated. Promising abstraction techniques usually employ interval methods or template polyhedra. Interval methods account for dense time and guarantee soundness, and there are interval-based tools that overapproximate affine flowpipes. But interval methods impose bounded and rigid shapes, which make refinement expensive and fixpoint detection difficult. Template polyhedra, on the other hand, can be adapted flexibly and can be unbounded, but sound template refinement for unbounded reachability analysis has been implemented only for systems with piecewise constant dynamics. We capitalize on the advantages of both techniques, combining interval arithmetic and template polyhedra, using the former to abstract time and the latter to abstract space. During a CEGAR loop, whenever a spurious error trajectory is found, we compute additional space constraints and split time intervals, and use these space-time interpolants to eliminate the counterexample. Space-time interpolation offers a lazy, flexible framework for increasing precision while guaranteeing soundness, both for error avoidance and fixpoint detection. To the best of out knowledge, this is the first abstraction refinement scheme for the reachability analysis over unbounded and dense time of affine hybrid systems, which is both sound and automatic. We demonstrate the effectiveness of our algorithm with several benchmark examples, which cannot be handled by other tools.","lang":"eng"}],"page":"468 - 486","citation":{"ista":"Frehse G, Giacobbe M, Henzinger TA. 2018. Space-time interpolants. CAV: Computer Aided Verification, LNCS, vol. 10981, 468–486.","ieee":"G. Frehse, M. Giacobbe, and T. A. Henzinger, “Space-time interpolants,” presented at the CAV: Computer Aided Verification, Oxford, United Kingdom, 2018, vol. 10981, pp. 468–486.","apa":"Frehse, G., Giacobbe, M., & Henzinger, T. A. (2018). Space-time interpolants (Vol. 10981, pp. 468–486). Presented at the CAV: Computer Aided Verification, Oxford, United Kingdom: Springer. https://doi.org/10.1007/978-3-319-96145-3_25","ama":"Frehse G, Giacobbe M, Henzinger TA. Space-time interpolants. In: Vol 10981. Springer; 2018:468-486. doi:10.1007/978-3-319-96145-3_25","chicago":"Frehse, Goran, Mirco Giacobbe, and Thomas A Henzinger. “Space-Time Interpolants,” 10981:468–86. Springer, 2018. https://doi.org/10.1007/978-3-319-96145-3_25.","mla":"Frehse, Goran, et al. Space-Time Interpolants. Vol. 10981, Springer, 2018, pp. 468–86, doi:10.1007/978-3-319-96145-3_25.","short":"G. Frehse, M. Giacobbe, T.A. Henzinger, in:, Springer, 2018, pp. 468–486."},"date_published":"2018-07-18T00:00:00Z","scopus_import":"1","article_processing_charge":"No","has_accepted_license":"1","day":"18"},{"citation":{"ama":"Brázdil T, Chatterjee K, Kretinsky J, Toman V. Strategy representation by decision trees in reactive synthesis. In: Vol 10805. Springer; 2018:385-407. doi:10.1007/978-3-319-89960-2_21","ista":"Brázdil T, Chatterjee K, Kretinsky J, Toman V. 2018. Strategy representation by decision trees in reactive synthesis. TACAS 2018: Tools and Algorithms for the Construction and Analysis of Systems, LNCS, vol. 10805, 385–407.","ieee":"T. Brázdil, K. Chatterjee, J. Kretinsky, and V. Toman, “Strategy representation by decision trees in reactive synthesis,” presented at the TACAS 2018: Tools and Algorithms for the Construction and Analysis of Systems, Thessaloniki, Greece, 2018, vol. 10805, pp. 385–407.","apa":"Brázdil, T., Chatterjee, K., Kretinsky, J., & Toman, V. (2018). Strategy representation by decision trees in reactive synthesis (Vol. 10805, pp. 385–407). Presented at the TACAS 2018: Tools and Algorithms for the Construction and Analysis of Systems, Thessaloniki, Greece: Springer. https://doi.org/10.1007/978-3-319-89960-2_21","mla":"Brázdil, Tomáš, et al. Strategy Representation by Decision Trees in Reactive Synthesis. Vol. 10805, Springer, 2018, pp. 385–407, doi:10.1007/978-3-319-89960-2_21.","short":"T. Brázdil, K. Chatterjee, J. Kretinsky, V. Toman, in:, Springer, 2018, pp. 385–407.","chicago":"Brázdil, Tomáš, Krishnendu Chatterjee, Jan Kretinsky, and Viktor Toman. “Strategy Representation by Decision Trees in Reactive Synthesis,” 10805:385–407. Springer, 2018. https://doi.org/10.1007/978-3-319-89960-2_21."},"page":"385 - 407","date_published":"2018-04-12T00:00:00Z","scopus_import":"1","has_accepted_license":"1","article_processing_charge":"No","day":"12","user_id":"c635000d-4b10-11ee-a964-aac5a93f6ac1","_id":"297","intvolume":" 10805","status":"public","ddc":["000"],"title":"Strategy representation by decision trees in reactive synthesis","oa_version":"Published Version","file":[{"relation":"main_file","file_id":"5723","checksum":"b13874ffb114932ad9cc2586b7469db4","date_updated":"2020-07-14T12:45:57Z","date_created":"2018-12-17T16:29:08Z","access_level":"open_access","file_name":"2018_LNCS_Brazdil.pdf","file_size":1829940,"content_type":"application/pdf","creator":"dernst"}],"type":"conference","alternative_title":["LNCS"],"abstract":[{"text":"Graph games played by two players over finite-state graphs are central in many problems in computer science. In particular, graph games with ω -regular winning conditions, specified as parity objectives, which can express properties such as safety, liveness, fairness, are the basic framework for verification and synthesis of reactive systems. The decisions for a player at various states of the graph game are represented as strategies. While the algorithmic problem for solving graph games with parity objectives has been widely studied, the most prominent data-structure for strategy representation in graph games has been binary decision diagrams (BDDs). However, due to the bit-level representation, BDDs do not retain the inherent flavor of the decisions of strategies, and are notoriously hard to minimize to obtain succinct representation. In this work we propose decision trees for strategy representation in graph games. Decision trees retain the flavor of decisions of strategies and allow entropy-based minimization to obtain succinct trees. However, decision trees work in settings (e.g., probabilistic models) where errors are allowed, and overfitting of data is typically avoided. In contrast, for strategies in graph games no error is allowed, and the decision tree must represent the entire strategy. We develop new techniques to extend decision trees to overcome the above obstacles, while retaining the entropy-based techniques to obtain succinct trees. We have implemented our techniques to extend the existing decision tree solvers. We present experimental results for problems in reactive synthesis to show that decision trees provide a much more efficient data-structure for strategy representation as compared to BDDs.","lang":"eng"}],"oa":1,"tmp":{"name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","short":"CC BY (4.0)","image":"/images/cc_by.png"},"external_id":{"isi":["000546326300021"]},"project":[{"name":"Efficient Algorithms for Computer Aided Verification","_id":"25892FC0-B435-11E9-9278-68D0E5697425","grant_number":"ICT15-003"},{"grant_number":"S 11407_N23","_id":"25832EC2-B435-11E9-9278-68D0E5697425","call_identifier":"FWF","name":"Rigorous Systems Engineering"},{"_id":"2581B60A-B435-11E9-9278-68D0E5697425","grant_number":"279307","name":"Quantitative Graph Games: Theory and Applications","call_identifier":"FP7"},{"call_identifier":"H2020","name":"International IST Doctoral Program","_id":"2564DBCA-B435-11E9-9278-68D0E5697425","grant_number":"665385"}],"isi":1,"quality_controlled":"1","doi":"10.1007/978-3-319-89960-2_21","conference":{"name":"TACAS 2018: Tools and Algorithms for the Construction and Analysis of Systems","location":"Thessaloniki, Greece","start_date":"2018-04-14","end_date":"2018-04-20"},"language":[{"iso":"eng"}],"month":"04","year":"2018","department":[{"_id":"KrCh"},{"_id":"ToHe"}],"publisher":"Springer","publication_status":"published","author":[{"first_name":"Tomáš","last_name":"Brázdil","full_name":"Brázdil, Tomáš"},{"full_name":"Chatterjee, Krishnendu","id":"2E5DCA20-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0002-4561-241X","first_name":"Krishnendu","last_name":"Chatterjee"},{"last_name":"Kretinsky","first_name":"Jan","orcid":"0000-0002-8122-2881","id":"44CEF464-F248-11E8-B48F-1D18A9856A87","full_name":"Kretinsky, Jan"},{"full_name":"Toman, Viktor","last_name":"Toman","first_name":"Viktor","orcid":"0000-0001-9036-063X","id":"3AF3DA7C-F248-11E8-B48F-1D18A9856A87"}],"volume":10805,"date_created":"2018-12-11T11:45:41Z","date_updated":"2023-09-19T09:57:08Z","publist_id":"7584","ec_funded":1,"file_date_updated":"2020-07-14T12:45:57Z"},{"publist_id":"7197","ec_funded":1,"author":[{"full_name":"Avni, Guy","first_name":"Guy","last_name":"Avni","id":"463C8BC2-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0001-5588-8287"},{"full_name":"Kupferman, Orna","first_name":"Orna","last_name":"Kupferman"}],"date_created":"2018-12-11T11:47:28Z","date_updated":"2023-09-19T10:00:21Z","volume":712,"year":"2018","publication_status":"published","publisher":"Elsevier","department":[{"_id":"ToHe"}],"month":"02","doi":"10.1016/j.tcs.2017.11.001","language":[{"iso":"eng"}],"oa":1,"main_file_link":[{"url":"http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.636.4529","open_access":"1"}],"external_id":{"isi":["000424959200003"]},"quality_controlled":"1","isi":1,"project":[{"name":"Quantitative Reactive Modeling","call_identifier":"FP7","grant_number":"267989","_id":"25EE3708-B435-11E9-9278-68D0E5697425"},{"grant_number":"S 11407_N23","_id":"25832EC2-B435-11E9-9278-68D0E5697425","name":"Rigorous Systems Engineering","call_identifier":"FWF"},{"_id":"25F42A32-B435-11E9-9278-68D0E5697425","grant_number":"Z211","name":"The Wittgenstein Prize","call_identifier":"FWF"}],"abstract":[{"text":"Synthesis is the automated construction of a system from its specification. In real life, hardware and software systems are rarely constructed from scratch. Rather, a system is typically constructed from a library of components. Lustig and Vardi formalized this intuition and studied LTL synthesis from component libraries. In real life, designers seek optimal systems. In this paper we add optimality considerations to the setting. We distinguish between quality considerations (for example, size - the smaller a system is, the better it is), and pricing (for example, the payment to the company who manufactured the component). We study the problem of designing systems with minimal quality-cost and price. A key point is that while the quality cost is individual - the choices of a designer are independent of choices made by other designers that use the same library, pricing gives rise to a resource-allocation game - designers that use the same component share its price, with the share being proportional to the number of uses (a component can be used several times in a design). We study both closed and open settings, and in both we solve the problem of finding an optimal design. In a setting with multiple designers, we also study the game-theoretic problems of the induced resource-allocation game.","lang":"eng"}],"type":"journal_article","oa_version":"Published Version","_id":"608","user_id":"c635000d-4b10-11ee-a964-aac5a93f6ac1","title":"Synthesis from component libraries with costs","status":"public","intvolume":" 712","day":"15","article_processing_charge":"No","scopus_import":"1","date_published":"2018-02-15T00:00:00Z","publication":"Theoretical Computer Science","citation":{"ista":"Avni G, Kupferman O. 2018. Synthesis from component libraries with costs. Theoretical Computer Science. 712, 50–72.","ieee":"G. Avni and O. Kupferman, “Synthesis from component libraries with costs,” Theoretical Computer Science, vol. 712. Elsevier, pp. 50–72, 2018.","apa":"Avni, G., & Kupferman, O. (2018). Synthesis from component libraries with costs. Theoretical Computer Science. Elsevier. https://doi.org/10.1016/j.tcs.2017.11.001","ama":"Avni G, Kupferman O. Synthesis from component libraries with costs. Theoretical Computer Science. 2018;712:50-72. doi:10.1016/j.tcs.2017.11.001","chicago":"Avni, Guy, and Orna Kupferman. “Synthesis from Component Libraries with Costs.” Theoretical Computer Science. Elsevier, 2018. https://doi.org/10.1016/j.tcs.2017.11.001.","mla":"Avni, Guy, and Orna Kupferman. “Synthesis from Component Libraries with Costs.” Theoretical Computer Science, vol. 712, Elsevier, 2018, pp. 50–72, doi:10.1016/j.tcs.2017.11.001.","short":"G. Avni, O. Kupferman, Theoretical Computer Science 712 (2018) 50–72."},"article_type":"original","page":"50 - 72"},{"type":"conference","alternative_title":["LNCS"],"abstract":[{"text":"Imprecision in timing can sometimes be beneficial: Metric interval temporal logic (MITL), disabling the expression of punctuality constraints, was shown to translate to timed automata, yielding an elementary decision procedure. We show how this principle extends to other forms of dense-time specification using regular expressions. By providing a clean, automaton-based formal framework for non-punctual languages, we are able to recover and extend several results in timed systems. Metric interval regular expressions (MIRE) are introduced, providing regular expressions with non-singular duration constraints. We obtain that MIRE are expressively complete relative to a class of one-clock timed automata, which can be determinized using additional clocks. Metric interval dynamic logic (MIDL) is then defined using MIRE as temporal modalities. We show that MIDL generalizes known extensions of MITL, while translating to timed automata at comparable cost.","lang":"eng"}],"_id":"156","user_id":"c635000d-4b10-11ee-a964-aac5a93f6ac1","status":"public","ddc":["000"],"title":"The compound interest in relaxing punctuality","intvolume":" 10951","oa_version":"Submitted Version","file":[{"file_id":"8637","relation":"main_file","date_updated":"2020-10-09T06:22:41Z","date_created":"2020-10-09T06:22:41Z","success":1,"checksum":"a045c213c42c445f1889326f8db82a0a","file_name":"2018_LNCS_Ferrere.pdf","access_level":"open_access","creator":"dernst","content_type":"application/pdf","file_size":485576}],"scopus_import":"1","day":"12","article_processing_charge":"No","has_accepted_license":"1","citation":{"short":"T. Ferrere, in:, Springer, 2018, pp. 147–164.","mla":"Ferrere, Thomas. The Compound Interest in Relaxing Punctuality. Vol. 10951, Springer, 2018, pp. 147–64, doi:10.1007/978-3-319-95582-7_9.","chicago":"Ferrere, Thomas. “The Compound Interest in Relaxing Punctuality,” 10951:147–64. Springer, 2018. https://doi.org/10.1007/978-3-319-95582-7_9.","ama":"Ferrere T. The compound interest in relaxing punctuality. In: Vol 10951. Springer; 2018:147-164. doi:10.1007/978-3-319-95582-7_9","apa":"Ferrere, T. (2018). The compound interest in relaxing punctuality (Vol. 10951, pp. 147–164). Presented at the FM: International Symposium on Formal Methods, Oxford, UK: Springer. https://doi.org/10.1007/978-3-319-95582-7_9","ieee":"T. Ferrere, “The compound interest in relaxing punctuality,” presented at the FM: International Symposium on Formal Methods, Oxford, UK, 2018, vol. 10951, pp. 147–164.","ista":"Ferrere T. 2018. The compound interest in relaxing punctuality. FM: International Symposium on Formal Methods, LNCS, vol. 10951, 147–164."},"page":"147 - 164","date_published":"2018-07-12T00:00:00Z","file_date_updated":"2020-10-09T06:22:41Z","publist_id":"7765","year":"2018","publication_status":"published","publisher":"Springer","department":[{"_id":"ToHe"}],"author":[{"full_name":"Ferrere, Thomas","first_name":"Thomas","last_name":"Ferrere","id":"40960E6E-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0001-5199-3143"}],"date_updated":"2023-09-19T10:05:37Z","date_created":"2018-12-11T11:44:55Z","volume":10951,"month":"07","external_id":{"isi":["000489765800009"]},"oa":1,"isi":1,"quality_controlled":"1","project":[{"name":"The Wittgenstein Prize","call_identifier":"FWF","grant_number":"Z211","_id":"25F42A32-B435-11E9-9278-68D0E5697425"},{"name":"Rigorous Systems Engineering","call_identifier":"FWF","_id":"25832EC2-B435-11E9-9278-68D0E5697425","grant_number":"S 11407_N23"}],"conference":{"name":"FM: International Symposium on Formal Methods","end_date":"2018-07-17","location":"Oxford, UK","start_date":"2018-07-15"},"doi":"10.1007/978-3-319-95582-7_9","language":[{"iso":"eng"}]},{"type":"conference","abstract":[{"lang":"eng","text":"Formalizing properties of systems with continuous dynamics is a challenging task. In this paper, we propose a formal framework for specifying and monitoring rich temporal properties of real-valued signals. We introduce signal first-order logic (SFO) as a specification language that combines first-order logic with linear-real arithmetic and unary function symbols interpreted as piecewise-linear signals. We first show that while the satisfiability problem for SFO is undecidable, its membership and monitoring problems are decidable. We develop an offline monitoring procedure for SFO that has polynomial complexity in the size of the input trace and the specification, for a fixed number of quantifiers and function symbols. We show that the algorithm has computation time linear in the size of the input trace for the important fragment of bounded-response specifications interpreted over input traces with finite variability. We can use our results to extend signal temporal logic with first-order quantifiers over time and value parameters, while preserving its efficient monitoring. We finally demonstrate the practical appeal of our logic through a case study in the micro-electronics domain."}],"user_id":"c635000d-4b10-11ee-a964-aac5a93f6ac1","_id":"5959","ddc":["000"],"status":"public","title":"Keynote: The first-order logic of signals","file":[{"relation":"main_file","file_id":"7839","date_created":"2020-05-14T16:01:29Z","date_updated":"2020-07-14T12:47:13Z","checksum":"234a33ad9055b3458fcdda6af251b33a","file_name":"2018_EMSOFT_Bakhirkin.pdf","access_level":"open_access","file_size":338006,"content_type":"application/pdf","creator":"dernst"}],"oa_version":"Published Version","scopus_import":"1","day":"30","article_processing_charge":"No","has_accepted_license":"1","publication":"2018 International Conference on Embedded Software","citation":{"ama":"Bakhirkin A, Ferrere T, Henzinger TA, Nickovicl D. Keynote: The first-order logic of signals. In: 2018 International Conference on Embedded Software. IEEE; 2018:1-10. doi:10.1109/emsoft.2018.8537203","ista":"Bakhirkin A, Ferrere T, Henzinger TA, Nickovicl D. 2018. Keynote: The first-order logic of signals. 2018 International Conference on Embedded Software. EMSOFT: International Conference on Embedded Software, 1–10.","apa":"Bakhirkin, A., Ferrere, T., Henzinger, T. A., & Nickovicl, D. (2018). Keynote: The first-order logic of signals. In 2018 International Conference on Embedded Software (pp. 1–10). Turin, Italy: IEEE. https://doi.org/10.1109/emsoft.2018.8537203","ieee":"A. Bakhirkin, T. Ferrere, T. A. Henzinger, and D. Nickovicl, “Keynote: The first-order logic of signals,” in 2018 International Conference on Embedded Software, Turin, Italy, 2018, pp. 1–10.","mla":"Bakhirkin, Alexey, et al. “Keynote: The First-Order Logic of Signals.” 2018 International Conference on Embedded Software, IEEE, 2018, pp. 1–10, doi:10.1109/emsoft.2018.8537203.","short":"A. Bakhirkin, T. Ferrere, T.A. Henzinger, D. Nickovicl, in:, 2018 International Conference on Embedded Software, IEEE, 2018, pp. 1–10.","chicago":"Bakhirkin, Alexey, Thomas Ferrere, Thomas A Henzinger, and Deian Nickovicl. “Keynote: The First-Order Logic of Signals.” In 2018 International Conference on Embedded Software, 1–10. IEEE, 2018. https://doi.org/10.1109/emsoft.2018.8537203."},"page":"1-10","date_published":"2018-09-30T00:00:00Z","file_date_updated":"2020-07-14T12:47:13Z","year":"2018","publication_status":"published","publisher":"IEEE","department":[{"_id":"ToHe"}],"author":[{"last_name":"Bakhirkin","first_name":"Alexey","full_name":"Bakhirkin, Alexey"},{"full_name":"Ferrere, Thomas","orcid":"0000-0001-5199-3143","id":"40960E6E-F248-11E8-B48F-1D18A9856A87","last_name":"Ferrere","first_name":"Thomas"},{"full_name":"Henzinger, Thomas A","last_name":"Henzinger","first_name":"Thomas A","orcid":"0000−0002−2985−7724","id":"40876CD8-F248-11E8-B48F-1D18A9856A87"},{"last_name":"Nickovicl","first_name":"Deian","full_name":"Nickovicl, Deian"}],"date_updated":"2023-09-19T10:41:29Z","date_created":"2019-02-13T09:19:28Z","month":"09","publication_identifier":{"isbn":["9781538655603"]},"external_id":{"isi":["000492828500005"]},"oa":1,"quality_controlled":"1","isi":1,"project":[{"_id":"25832EC2-B435-11E9-9278-68D0E5697425","grant_number":"S 11407_N23","name":"Rigorous Systems Engineering","call_identifier":"FWF"},{"_id":"25F42A32-B435-11E9-9278-68D0E5697425","grant_number":"Z211","name":"The Wittgenstein Prize","call_identifier":"FWF"}],"conference":{"name":"EMSOFT: International Conference on Embedded Software","end_date":"2018-10-05","start_date":"2018-09-30","location":"Turin, Italy"},"doi":"10.1109/emsoft.2018.8537203","language":[{"iso":"eng"}]},{"type":"conference","abstract":[{"lang":"eng","text":"Partially-observable Markov decision processes (POMDPs) with discounted-sum payoff are a standard framework to model a wide range of problems related to decision making under uncertainty. Traditionally, the goal has been to obtain policies that optimize the expectation of the discounted-sum payoff. A key drawback of the expectation measure is that even low probability events with extreme payoff can significantly affect the expectation, and thus the obtained policies are not necessarily risk-averse. An alternate approach is to optimize the probability that the payoff is above a certain threshold, which allows obtaining risk-averse policies, but ignores optimization of the expectation. We consider the expectation optimization with probabilistic guarantee (EOPG) problem, where the goal is to optimize the expectation ensuring that the payoff is above a given threshold with at least a specified probability. We present several results on the EOPG problem, including the first algorithm to solve it."}],"status":"public","title":"Expectation optimization with probabilistic guarantees in POMDPs with discounted-sum objectives","intvolume":" 2018","user_id":"c635000d-4b10-11ee-a964-aac5a93f6ac1","_id":"24","oa_version":"Preprint","scopus_import":"1","day":"01","article_processing_charge":"No","page":"4692 - 4699","citation":{"short":"K. Chatterjee, A. Elgyütt, P. Novotný, O. Rouillé, in:, IJCAI, 2018, pp. 4692–4699.","mla":"Chatterjee, Krishnendu, et al. Expectation Optimization with Probabilistic Guarantees in POMDPs with Discounted-Sum Objectives. Vol. 2018, IJCAI, 2018, pp. 4692–99, doi:10.24963/ijcai.2018/652.","chicago":"Chatterjee, Krishnendu, Adrian Elgyütt, Petr Novotný, and Owen Rouillé. “Expectation Optimization with Probabilistic Guarantees in POMDPs with Discounted-Sum Objectives,” 2018:4692–99. IJCAI, 2018. https://doi.org/10.24963/ijcai.2018/652.","ama":"Chatterjee K, Elgyütt A, Novotný P, Rouillé O. Expectation optimization with probabilistic guarantees in POMDPs with discounted-sum objectives. In: Vol 2018. IJCAI; 2018:4692-4699. doi:10.24963/ijcai.2018/652","apa":"Chatterjee, K., Elgyütt, A., Novotný, P., & Rouillé, O. (2018). Expectation optimization with probabilistic guarantees in POMDPs with discounted-sum objectives (Vol. 2018, pp. 4692–4699). Presented at the IJCAI: International Joint Conference on Artificial Intelligence, Stockholm, Sweden: IJCAI. https://doi.org/10.24963/ijcai.2018/652","ieee":"K. Chatterjee, A. Elgyütt, P. Novotný, and O. Rouillé, “Expectation optimization with probabilistic guarantees in POMDPs with discounted-sum objectives,” presented at the IJCAI: International Joint Conference on Artificial Intelligence, Stockholm, Sweden, 2018, vol. 2018, pp. 4692–4699.","ista":"Chatterjee K, Elgyütt A, Novotný P, Rouillé O. 2018. Expectation optimization with probabilistic guarantees in POMDPs with discounted-sum objectives. IJCAI: International Joint Conference on Artificial Intelligence vol. 2018, 4692–4699."},"date_published":"2018-07-01T00:00:00Z","ec_funded":1,"publist_id":"8031","publication_status":"published","publisher":"IJCAI","department":[{"_id":"KrCh"},{"_id":"ToHe"}],"year":"2018","acknowledgement":"This research was supported by the Vienna Science and Technology Fund (WWTF) grant ICT15-003; Austrian Science Fund (FWF): S11407-N23(RiSE/SHiNE);and an ERC Start Grant (279307:Graph Games).\r\n","date_created":"2018-12-11T11:44:13Z","date_updated":"2023-09-19T14:45:48Z","volume":2018,"author":[{"orcid":"0000-0002-4561-241X","id":"2E5DCA20-F248-11E8-B48F-1D18A9856A87","last_name":"Chatterjee","first_name":"Krishnendu","full_name":"Chatterjee, Krishnendu"},{"full_name":"Elgyütt, Adrian","first_name":"Adrian","last_name":"Elgyütt","id":"4A2E9DBA-F248-11E8-B48F-1D18A9856A87"},{"first_name":"Petr","last_name":"Novotny","id":"3CC3B868-F248-11E8-B48F-1D18A9856A87","full_name":"Novotny, Petr"},{"full_name":"Rouillé, Owen","first_name":"Owen","last_name":"Rouillé"}],"month":"07","isi":1,"quality_controlled":"1","project":[{"name":"Efficient Algorithms for Computer Aided Verification","grant_number":"ICT15-003","_id":"25892FC0-B435-11E9-9278-68D0E5697425"},{"_id":"25832EC2-B435-11E9-9278-68D0E5697425","grant_number":"S 11407_N23","name":"Rigorous Systems Engineering","call_identifier":"FWF"},{"call_identifier":"FP7","name":"Quantitative Graph Games: Theory and Applications","grant_number":"279307","_id":"2581B60A-B435-11E9-9278-68D0E5697425"}],"main_file_link":[{"open_access":"1","url":"https://arxiv.org/abs/1804.10601"}],"external_id":{"isi":["000764175404117"],"arxiv":["1804.10601"]},"oa":1,"language":[{"iso":"eng"}],"conference":{"end_date":"2018-07-19","location":"Stockholm, Sweden","start_date":"2018-07-13","name":"IJCAI: International Joint Conference on Artificial Intelligence"},"doi":"10.24963/ijcai.2018/652"},{"scopus_import":1,"day":"01","has_accepted_license":"1","publication":"Games","citation":{"short":"G. Avni, S. Guha, O. Kupferman, Games 9 (2018).","mla":"Avni, Guy, et al. “An Abstraction-Refinement Methodology for Reasoning about Network Games.” Games, vol. 9, no. 3, 39, MDPI AG, 2018, doi:10.3390/g9030039.","chicago":"Avni, Guy, Shibashis Guha, and Orna Kupferman. “An Abstraction-Refinement Methodology for Reasoning about Network Games.” Games. MDPI AG, 2018. https://doi.org/10.3390/g9030039.","ama":"Avni G, Guha S, Kupferman O. An abstraction-refinement methodology for reasoning about network games. Games. 2018;9(3). doi:10.3390/g9030039","apa":"Avni, G., Guha, S., & Kupferman, O. (2018). An abstraction-refinement methodology for reasoning about network games. Games. MDPI AG. https://doi.org/10.3390/g9030039","ieee":"G. Avni, S. Guha, and O. Kupferman, “An abstraction-refinement methodology for reasoning about network games,” Games, vol. 9, no. 3. MDPI AG, 2018.","ista":"Avni G, Guha S, Kupferman O. 2018. An abstraction-refinement methodology for reasoning about network games. Games. 9(3), 39."},"date_published":"2018-09-01T00:00:00Z","type":"journal_article","abstract":[{"text":"Network games (NGs) are played on directed graphs and are extensively used in network design and analysis. Search problems for NGs include finding special strategy profiles such as a Nash equilibrium and a globally-optimal solution. The networks modeled by NGs may be huge. In formal verification, abstraction has proven to be an extremely effective technique for reasoning about systems with big and even infinite state spaces. We describe an abstraction-refinement methodology for reasoning about NGs. Our methodology is based on an abstraction function that maps the state space of an NG to a much smaller state space. We search for a global optimum and a Nash equilibrium by reasoning on an under- and an over-approximation defined on top of this smaller state space. When the approximations are too coarse to find such profiles, we refine the abstraction function. We extend the abstraction-refinement methodology to labeled networks, where the objectives of the players are regular languages. Our experimental results demonstrate the effectiveness of the methodology. ","lang":"eng"}],"issue":"3","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","_id":"6006","status":"public","title":"An abstraction-refinement methodology for reasoning about network games","ddc":["004"],"intvolume":" 9","oa_version":"Published Version","file":[{"relation":"main_file","file_id":"6008","date_created":"2019-02-14T14:20:31Z","date_updated":"2020-07-14T12:47:16Z","checksum":"749d65ca4ce74256a029d9644a1b1cb0","file_name":"2018_MDPI_Avni.pdf","access_level":"open_access","file_size":505155,"content_type":"application/pdf","creator":"kschuh"}],"month":"09","publication_identifier":{"issn":["2073-4336"]},"tmp":{"name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","short":"CC BY (4.0)","image":"/images/cc_by.png"},"oa":1,"quality_controlled":"1","project":[{"grant_number":"M02369","_id":"264B3912-B435-11E9-9278-68D0E5697425","name":"Formal Methods meets Algorithmic Game Theory","call_identifier":"FWF"},{"_id":"25832EC2-B435-11E9-9278-68D0E5697425","grant_number":"S 11407_N23","name":"Rigorous Systems Engineering","call_identifier":"FWF"},{"grant_number":"Z211","_id":"25F42A32-B435-11E9-9278-68D0E5697425","call_identifier":"FWF","name":"The Wittgenstein Prize"}],"doi":"10.3390/g9030039","language":[{"iso":"eng"}],"article_number":"39","file_date_updated":"2020-07-14T12:47:16Z","year":"2018","publication_status":"published","publisher":"MDPI AG","department":[{"_id":"ToHe"}],"author":[{"last_name":"Avni","first_name":"Guy","orcid":"0000-0001-5588-8287","id":"463C8BC2-F248-11E8-B48F-1D18A9856A87","full_name":"Avni, Guy"},{"full_name":"Guha, Shibashis","last_name":"Guha","first_name":"Shibashis"},{"full_name":"Kupferman, Orna","first_name":"Orna","last_name":"Kupferman"}],"related_material":{"record":[{"status":"public","relation":"earlier_version","id":"1003"}]},"date_updated":"2023-09-22T09:48:59Z","date_created":"2019-02-14T14:17:54Z","volume":9},{"intvolume":" 12","status":"public","title":"Contracts for system design","_id":"5677","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","oa_version":"Submitted Version","type":"journal_article","issue":"2-3","abstract":[{"lang":"eng","text":"Recently, contract-based design has been proposed as an “orthogonal” approach that complements system design methodologies proposed so far to cope with the complexity of system design. Contract-based design provides a rigorous scaffolding for verification, analysis, abstraction/refinement, and even synthesis. A number of results have been obtained in this domain but a unified treatment of the topic that can help put contract-based design in perspective was missing. This monograph intends to provide such a treatment where contracts are precisely defined and characterized so that they can be used in design methodologies with no ambiguity. In particular, this monograph identifies the essence of complex system design using contracts through a mathematical “meta-theory”, where all the properties of the methodology are derived from a very abstract and generic notion of contract. We show that the meta-theory provides deep and illuminating links with existing contract and interface theories, as well as guidelines for designing new theories. Our study encompasses contracts for both software and systems, with emphasis on the latter. We illustrate the use of contracts with two examples: requirement engineering for a parking garage management, and the development of contracts for timing and scheduling in the context of the Autosar methodology in use in the automotive sector."}],"page":"124-400","article_type":"original","citation":{"chicago":"Benveniste, Albert, Dejan Nickovic, Benoît Caillaud, Roberto Passerone, Jean Baptiste Raclet, Philipp Reinkemeier, Alberto Sangiovanni-Vincentelli, Werner Damm, Thomas A Henzinger, and Kim G. Larsen. “Contracts for System Design.” Foundations and Trends in Electronic Design Automation. Now Publishers, 2018. https://doi.org/10.1561/1000000053.","mla":"Benveniste, Albert, et al. “Contracts for System Design.” Foundations and Trends in Electronic Design Automation, vol. 12, no. 2–3, Now Publishers, 2018, pp. 124–400, doi:10.1561/1000000053.","short":"A. Benveniste, D. Nickovic, B. Caillaud, R. Passerone, J.B. Raclet, P. Reinkemeier, A. Sangiovanni-Vincentelli, W. Damm, T.A. Henzinger, K.G. Larsen, Foundations and Trends in Electronic Design Automation 12 (2018) 124–400.","ista":"Benveniste A, Nickovic D, Caillaud B, Passerone R, Raclet JB, Reinkemeier P, Sangiovanni-Vincentelli A, Damm W, Henzinger TA, Larsen KG. 2018. Contracts for system design. Foundations and Trends in Electronic Design Automation. 12(2–3), 124–400.","apa":"Benveniste, A., Nickovic, D., Caillaud, B., Passerone, R., Raclet, J. B., Reinkemeier, P., … Larsen, K. G. (2018). Contracts for system design. Foundations and Trends in Electronic Design Automation. Now Publishers. https://doi.org/10.1561/1000000053","ieee":"A. Benveniste et al., “Contracts for system design,” Foundations and Trends in Electronic Design Automation, vol. 12, no. 2–3. Now Publishers, pp. 124–400, 2018.","ama":"Benveniste A, Nickovic D, Caillaud B, et al. Contracts for system design. Foundations and Trends in Electronic Design Automation. 2018;12(2-3):124-400. doi:10.1561/1000000053"},"publication":"Foundations and Trends in Electronic Design Automation","date_published":"2018-05-01T00:00:00Z","scopus_import":"1","article_processing_charge":"No","day":"01","publisher":"Now Publishers","department":[{"_id":"ToHe"}],"publication_status":"published","year":"2018","volume":12,"date_created":"2018-12-16T22:59:19Z","date_updated":"2023-10-17T11:53:09Z","author":[{"full_name":"Benveniste, Albert","last_name":"Benveniste","first_name":"Albert"},{"full_name":"Nickovic, Dejan","last_name":"Nickovic","first_name":"Dejan"},{"full_name":"Caillaud, Benoît","last_name":"Caillaud","first_name":"Benoît"},{"first_name":"Roberto","last_name":"Passerone","full_name":"Passerone, Roberto"},{"last_name":"Raclet","first_name":"Jean Baptiste","full_name":"Raclet, Jean Baptiste"},{"last_name":"Reinkemeier","first_name":"Philipp","full_name":"Reinkemeier, Philipp"},{"last_name":"Sangiovanni-Vincentelli","first_name":"Alberto","full_name":"Sangiovanni-Vincentelli, Alberto"},{"full_name":"Damm, Werner","last_name":"Damm","first_name":"Werner"},{"full_name":"Henzinger, Thomas A","last_name":"Henzinger","first_name":"Thomas A","orcid":"0000−0002−2985−7724","id":"40876CD8-F248-11E8-B48F-1D18A9856A87"},{"last_name":"Larsen","first_name":"Kim G.","full_name":"Larsen, Kim G."}],"quality_controlled":"1","oa":1,"main_file_link":[{"url":"https://hal.inria.fr/hal-00757488/","open_access":"1"}],"language":[{"iso":"eng"}],"doi":"10.1561/1000000053","publication_identifier":{"issn":["1551-3939"]},"month":"05"},{"quality_controlled":"1","oa":1,"main_file_link":[{"url":"https://dl.acm.org/doi/10.1145/3158121","open_access":"1"}],"external_id":{"arxiv":["1711.03588"]},"language":[{"iso":"eng"}],"doi":"10.1145/3158121","conference":{"end_date":"2018-01-13","location":"Los Angeles, CA, United States","start_date":"2018-01-07","name":"POPL: Programming Languages"},"publication_identifier":{"eissn":["2475-1421"]},"month":"12","department":[{"_id":"KrCh"},{"_id":"ToHe"}],"publisher":"Association for Computing Machinery","publication_status":"published","year":"2017","acknowledgement":"McIver and Morgan are grateful to David Basin and the Information Security Group at ETH Zürich for hosting a six-month stay in Switzerland, during part of which this work began. And thanks particularly to Andreas Lochbihler, who shared with us the probabilistic termination problem that led to it. They acknowledge the support of ARC grant DP140101119. Part of this work was carried out during the Workshop on Probabilistic Programming Semantics\r\nat McGill University’s Bellairs Research Institute on Barbados organised by Alexandra Silva and\r\nPrakash Panangaden. Kaminski and Katoen are grateful to Sebastian Junges for spotting a flaw in §5.4.","volume":2,"date_created":"2021-12-05T23:01:49Z","date_updated":"2021-12-07T08:04:14Z","author":[{"full_name":"Mciver, Annabelle","last_name":"Mciver","first_name":"Annabelle"},{"full_name":"Morgan, Carroll","first_name":"Carroll","last_name":"Morgan"},{"full_name":"Kaminski, Benjamin Lucien","last_name":"Kaminski","first_name":"Benjamin Lucien"},{"full_name":"Katoen, Joost P","id":"4524F760-F248-11E8-B48F-1D18A9856A87","last_name":"Katoen","first_name":"Joost P"}],"article_number":"33","article_type":"original","citation":{"chicago":"Mciver, Annabelle, Carroll Morgan, Benjamin Lucien Kaminski, and Joost P Katoen. “A New Proof Rule for Almost-Sure Termination.” Proceedings of the ACM on Programming Languages. Association for Computing Machinery, 2017. https://doi.org/10.1145/3158121.","short":"A. Mciver, C. Morgan, B.L. Kaminski, J.P. Katoen, Proceedings of the ACM on Programming Languages 2 (2017).","mla":"Mciver, Annabelle, et al. “A New Proof Rule for Almost-Sure Termination.” Proceedings of the ACM on Programming Languages, vol. 2, no. POPL, 33, Association for Computing Machinery, 2017, doi:10.1145/3158121.","ieee":"A. Mciver, C. Morgan, B. L. Kaminski, and J. P. Katoen, “A new proof rule for almost-sure termination,” Proceedings of the ACM on Programming Languages, vol. 2, no. POPL. Association for Computing Machinery, 2017.","apa":"Mciver, A., Morgan, C., Kaminski, B. L., & Katoen, J. P. (2017). A new proof rule for almost-sure termination. Proceedings of the ACM on Programming Languages. Los Angeles, CA, United States: Association for Computing Machinery. https://doi.org/10.1145/3158121","ista":"Mciver A, Morgan C, Kaminski BL, Katoen JP. 2017. A new proof rule for almost-sure termination. Proceedings of the ACM on Programming Languages. 2(POPL), 33.","ama":"Mciver A, Morgan C, Kaminski BL, Katoen JP. A new proof rule for almost-sure termination. Proceedings of the ACM on Programming Languages. 2017;2(POPL). doi:10.1145/3158121"},"publication":"Proceedings of the ACM on Programming Languages","date_published":"2017-12-07T00:00:00Z","scopus_import":"1","article_processing_charge":"No","day":"07","intvolume":" 2","title":"A new proof rule for almost-sure termination","status":"public","user_id":"8b945eb4-e2f2-11eb-945a-df72226e66a9","_id":"10418","oa_version":"Published Version","type":"journal_article","issue":"POPL","abstract":[{"lang":"eng","text":"We present a new proof rule for proving almost-sure termination of probabilistic programs, including those that contain demonic non-determinism. An important question for a probabilistic program is whether the probability mass of all its diverging runs is zero, that is that it terminates \"almost surely\". Proving that can be hard, and this paper presents a new method for doing so. It applies directly to the program's source code, even if the program contains demonic choice. Like others, we use variant functions (a.k.a. \"super-martingales\") that are real-valued and decrease randomly on each loop iteration; but our key innovation is that the amount as well as the probability of the decrease are parametric. We prove the soundness of the new rule, indicate where its applicability goes beyond existing rules, and explain its connection to classical results on denumerable (non-demonic) Markov chains."}]},{"article_number":"12","ec_funded":1,"publist_id":"7349","publisher":"ACM","department":[{"_id":"ToHe"}],"publication_status":"published","year":"2017","volume":18,"date_updated":"2023-02-21T16:48:11Z","date_created":"2018-12-11T11:46:39Z","related_material":{"record":[{"id":"1234","relation":"earlier_version","status":"public"}]},"author":[{"full_name":"Daca, Przemyslaw","id":"49351290-F248-11E8-B48F-1D18A9856A87","first_name":"Przemyslaw","last_name":"Daca"},{"full_name":"Henzinger, Thomas A","id":"40876CD8-F248-11E8-B48F-1D18A9856A87","orcid":"0000−0002−2985−7724","first_name":"Thomas A","last_name":"Henzinger"},{"id":"44CEF464-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0002-8122-2881","first_name":"Jan","last_name":"Kretinsky","full_name":"Kretinsky, Jan"},{"full_name":"Petrov, Tatjana","last_name":"Petrov","first_name":"Tatjana","orcid":"0000-0002-9041-0905","id":"3D5811FC-F248-11E8-B48F-1D18A9856A87"}],"publication_identifier":{"issn":["15293785"]},"month":"05","project":[{"call_identifier":"FP7","name":"Quantitative Reactive Modeling","grant_number":"267989","_id":"25EE3708-B435-11E9-9278-68D0E5697425"},{"grant_number":"S11402-N23","_id":"25F5A88A-B435-11E9-9278-68D0E5697425","name":"Moderne Concurrency Paradigms","call_identifier":"FWF"},{"name":"The Wittgenstein Prize","call_identifier":"FWF","grant_number":"Z211","_id":"25F42A32-B435-11E9-9278-68D0E5697425"},{"call_identifier":"FP7","name":"International IST Postdoc Fellowship Programme","grant_number":"291734","_id":"25681D80-B435-11E9-9278-68D0E5697425"}],"quality_controlled":"1","oa":1,"main_file_link":[{"open_access":"1","url":"https://arxiv.org/abs/1504.05739"}],"language":[{"iso":"eng"}],"doi":"10.1145/3060139","type":"journal_article","issue":"2","abstract":[{"text":"We present a new algorithm for the statistical model checking of Markov chains with respect to unbounded temporal properties, including full linear temporal logic. The main idea is that we monitor each simulation run on the fly, in order to detect quickly if a bottom strongly connected component is entered with high probability, in which case the simulation run can be terminated early. As a result, our simulation runs are often much shorter than required by termination bounds that are computed a priori for a desired level of confidence on a large state space. In comparison to previous algorithms for statistical model checking our method is not only faster in many cases but also requires less information about the system, namely, only the minimum transition probability that occurs in the Markov chain. In addition, our method can be generalised to unbounded quantitative properties such as mean-payoff bounds. ","lang":"eng"}],"intvolume":" 18","status":"public","title":"Faster statistical model checking for unbounded temporal properties","_id":"471","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","oa_version":"Submitted Version","scopus_import":1,"day":"01","citation":{"short":"P. Daca, T.A. Henzinger, J. Kretinsky, T. Petrov, ACM Transactions on Computational Logic (TOCL) 18 (2017).","mla":"Daca, Przemyslaw, et al. “Faster Statistical Model Checking for Unbounded Temporal Properties.” ACM Transactions on Computational Logic (TOCL), vol. 18, no. 2, 12, ACM, 2017, doi:10.1145/3060139.","chicago":"Daca, Przemyslaw, Thomas A Henzinger, Jan Kretinsky, and Tatjana Petrov. “Faster Statistical Model Checking for Unbounded Temporal Properties.” ACM Transactions on Computational Logic (TOCL). ACM, 2017. https://doi.org/10.1145/3060139.","ama":"Daca P, Henzinger TA, Kretinsky J, Petrov T. Faster statistical model checking for unbounded temporal properties. ACM Transactions on Computational Logic (TOCL). 2017;18(2). doi:10.1145/3060139","ieee":"P. Daca, T. A. Henzinger, J. Kretinsky, and T. Petrov, “Faster statistical model checking for unbounded temporal properties,” ACM Transactions on Computational Logic (TOCL), vol. 18, no. 2. ACM, 2017.","apa":"Daca, P., Henzinger, T. A., Kretinsky, J., & Petrov, T. (2017). Faster statistical model checking for unbounded temporal properties. ACM Transactions on Computational Logic (TOCL). ACM. https://doi.org/10.1145/3060139","ista":"Daca P, Henzinger TA, Kretinsky J, Petrov T. 2017. Faster statistical model checking for unbounded temporal properties. ACM Transactions on Computational Logic (TOCL). 18(2), 12."},"publication":"ACM Transactions on Computational Logic (TOCL)","date_published":"2017-05-01T00:00:00Z"},{"issue":"4","abstract":[{"lang":"eng","text":"Recently there has been a significant effort to handle quantitative properties in formal verification and synthesis. While weighted automata over finite and infinite words provide a natural and flexible framework to express quantitative properties, perhaps surprisingly, some basic system properties such as average response time cannot be expressed using weighted automata or in any other known decidable formalism. In this work, we introduce nested weighted automata as a natural extension of weighted automata, which makes it possible to express important quantitative properties such as average response time. In nested weighted automata, a master automaton spins off and collects results from weighted slave automata, each of which computes a quantity along a finite portion of an infinite word. Nested weighted automata can be viewed as the quantitative analogue of monitor automata, which are used in runtime verification. We establish an almost-complete decidability picture for the basic decision problems about nested weighted automata and illustrate their applicability in several domains. In particular, nested weighted automata can be used to decide average response time properties."}],"type":"journal_article","oa_version":"Preprint","intvolume":" 18","status":"public","title":"Nested weighted automata","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","_id":"467","day":"01","scopus_import":1,"date_published":"2017-12-01T00:00:00Z","citation":{"chicago":"Chatterjee, Krishnendu, Thomas A Henzinger, and Jan Otop. “Nested Weighted Automata.” ACM Transactions on Computational Logic (TOCL). ACM, 2017. https://doi.org/10.1145/3152769.","mla":"Chatterjee, Krishnendu, et al. “Nested Weighted Automata.” ACM Transactions on Computational Logic (TOCL), vol. 18, no. 4, 31, ACM, 2017, doi:10.1145/3152769.","short":"K. Chatterjee, T.A. Henzinger, J. Otop, ACM Transactions on Computational Logic (TOCL) 18 (2017).","ista":"Chatterjee K, Henzinger TA, Otop J. 2017. Nested weighted automata. ACM Transactions on Computational Logic (TOCL). 18(4), 31.","ieee":"K. Chatterjee, T. A. Henzinger, and J. Otop, “Nested weighted automata,” ACM Transactions on Computational Logic (TOCL), vol. 18, no. 4. ACM, 2017.","apa":"Chatterjee, K., Henzinger, T. A., & Otop, J. (2017). Nested weighted automata. ACM Transactions on Computational Logic (TOCL). ACM. https://doi.org/10.1145/3152769","ama":"Chatterjee K, Henzinger TA, Otop J. Nested weighted automata. ACM Transactions on Computational Logic (TOCL). 2017;18(4). doi:10.1145/3152769"},"publication":"ACM Transactions on Computational Logic (TOCL)","ec_funded":1,"publist_id":"7354","article_number":"31","volume":18,"date_created":"2018-12-11T11:46:38Z","date_updated":"2023-02-23T12:26:19Z","related_material":{"record":[{"relation":"earlier_version","status":"public","id":"1656"},{"relation":"earlier_version","status":"public","id":"5415"},{"relation":"earlier_version","status":"public","id":"5436"}]},"author":[{"full_name":"Chatterjee, Krishnendu","last_name":"Chatterjee","first_name":"Krishnendu","orcid":"0000-0002-4561-241X","id":"2E5DCA20-F248-11E8-B48F-1D18A9856A87"},{"first_name":"Thomas A","last_name":"Henzinger","id":"40876CD8-F248-11E8-B48F-1D18A9856A87","orcid":"0000−0002−2985−7724","full_name":"Henzinger, Thomas A"},{"id":"2FC5DA74-F248-11E8-B48F-1D18A9856A87","first_name":"Jan","last_name":"Otop","full_name":"Otop, Jan"}],"publisher":"ACM","department":[{"_id":"KrCh"},{"_id":"ToHe"}],"publication_status":"published","year":"2017","publication_identifier":{"issn":["15293785"]},"month":"12","language":[{"iso":"eng"}],"doi":"10.1145/3152769","project":[{"grant_number":"S 11407_N23","_id":"25832EC2-B435-11E9-9278-68D0E5697425","call_identifier":"FWF","name":"Rigorous Systems Engineering"},{"_id":"25F42A32-B435-11E9-9278-68D0E5697425","grant_number":"Z211","name":"The Wittgenstein Prize","call_identifier":"FWF"},{"call_identifier":"FWF","name":"Modern Graph Algorithmic Techniques in Formal Verification","_id":"2584A770-B435-11E9-9278-68D0E5697425","grant_number":"P 23499-N23"},{"grant_number":"279307","_id":"2581B60A-B435-11E9-9278-68D0E5697425","call_identifier":"FP7","name":"Quantitative Graph Games: Theory and Applications"},{"name":"Microsoft Research Faculty Fellowship","_id":"2587B514-B435-11E9-9278-68D0E5697425"}],"quality_controlled":"1","oa":1,"main_file_link":[{"url":"https://arxiv.org/abs/1606.03598","open_access":"1"}],"external_id":{"arxiv":["1606.03598"]}},{"issue":"3","abstract":[{"text":"The edit distance between two words w 1 , w 2 is the minimal number of word operations (letter insertions, deletions, and substitutions) necessary to transform w 1 to w 2 . The edit distance generalizes to languages L 1 , L 2 , where the edit distance from L 1 to L 2 is the minimal number k such that for every word from L 1 there exists a word in L 2 with edit distance at most k . We study the edit distance computation problem between pushdown automata and their subclasses. The problem of computing edit distance to a pushdown automaton is undecidable, and in practice, the interesting question is to compute the edit distance from a pushdown automaton (the implementation, a standard model for programs with recursion) to a regular language (the specification). In this work, we present a complete picture of decidability and complexity for the following problems: (1) deciding whether, for a given threshold k , the edit distance from a pushdown automaton to a finite automaton is at most k , and (2) deciding whether the edit distance from a pushdown automaton to a finite automaton is finite. ","lang":"eng"}],"type":"journal_article","pubrep_id":"955","file":[{"file_name":"IST-2015-321-v1+1_main.pdf","access_level":"open_access","creator":"system","file_size":279071,"content_type":"application/pdf","file_id":"5090","relation":"main_file","date_created":"2018-12-12T10:14:37Z","date_updated":"2020-07-14T12:46:33Z","checksum":"08041379ba408d40664f449eb5907a8f"},{"checksum":"08041379ba408d40664f449eb5907a8f","date_created":"2018-12-12T10:14:38Z","date_updated":"2020-07-14T12:46:33Z","relation":"main_file","file_id":"5091","file_size":279071,"content_type":"application/pdf","creator":"system","access_level":"open_access","file_name":"IST-2018-955-v1+1_2017_Chatterjee_Edit_distance.pdf"}],"oa_version":"Published Version","_id":"465","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","intvolume":" 13","ddc":["004"],"title":"Edit distance for pushdown automata","status":"public","has_accepted_license":"1","day":"13","scopus_import":1,"date_published":"2017-09-13T00:00:00Z","citation":{"apa":"Chatterjee, K., Henzinger, T. A., Ibsen-Jensen, R., & Otop, J. (2017). Edit distance for pushdown automata. Logical Methods in Computer Science. International Federation of Computational Logic. https://doi.org/10.23638/LMCS-13(3:23)2017","ieee":"K. Chatterjee, T. A. Henzinger, R. Ibsen-Jensen, and J. Otop, “Edit distance for pushdown automata,” Logical Methods in Computer Science, vol. 13, no. 3. International Federation of Computational Logic, 2017.","ista":"Chatterjee K, Henzinger TA, Ibsen-Jensen R, Otop J. 2017. Edit distance for pushdown automata. Logical Methods in Computer Science. 13(3).","ama":"Chatterjee K, Henzinger TA, Ibsen-Jensen R, Otop J. Edit distance for pushdown automata. Logical Methods in Computer Science. 2017;13(3). doi:10.23638/LMCS-13(3:23)2017","chicago":"Chatterjee, Krishnendu, Thomas A Henzinger, Rasmus Ibsen-Jensen, and Jan Otop. “Edit Distance for Pushdown Automata.” Logical Methods in Computer Science. International Federation of Computational Logic, 2017. https://doi.org/10.23638/LMCS-13(3:23)2017.","short":"K. Chatterjee, T.A. Henzinger, R. Ibsen-Jensen, J. Otop, Logical Methods in Computer Science 13 (2017).","mla":"Chatterjee, Krishnendu, et al. “Edit Distance for Pushdown Automata.” Logical Methods in Computer Science, vol. 13, no. 3, International Federation of Computational Logic, 2017, doi:10.23638/LMCS-13(3:23)2017."},"publication":"Logical Methods in Computer Science","publist_id":"7356","ec_funded":1,"file_date_updated":"2020-07-14T12:46:33Z","license":"https://creativecommons.org/licenses/by-nd/4.0/","related_material":{"record":[{"id":"1610","relation":"earlier_version","status":"public"},{"relation":"earlier_version","status":"public","id":"5438"}]},"author":[{"first_name":"Krishnendu","last_name":"Chatterjee","id":"2E5DCA20-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0002-4561-241X","full_name":"Chatterjee, Krishnendu"},{"full_name":"Henzinger, Thomas A","orcid":"0000−0002−2985−7724","id":"40876CD8-F248-11E8-B48F-1D18A9856A87","last_name":"Henzinger","first_name":"Thomas 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Luca","last_name":"Aceto","first_name":"Luca"},{"last_name":"Bacci","first_name":"Giorgio","full_name":"Bacci, Giorgio"},{"last_name":"Ingólfsdóttir","first_name":"Anna","full_name":"Ingólfsdóttir, Anna"},{"last_name":"Legay","first_name":"Axel","full_name":"Legay, Axel"},{"first_name":"Radu","last_name":"Mardare","full_name":"Mardare, Radu"}],"department":[{"_id":"KrCh"},{"_id":"ToHe"}],"acknowledgement":"This research was supported in part by the Austrian Science Fund (FWF) under grants S11402-N23 and S11407-N23 (RiSE/SHiNE), and Z211-N23 (Wittgenstein Award), ERC Start grant (279307: Graph Games), Vienna Science and Technology Fund (WWTF) through project ICT15-003.","year":"2017","date_updated":"2022-05-23T08:54:02Z","date_created":"2018-12-11T11:47:34Z","volume":10460,"author":[{"full_name":"Chatterjee, Krishnendu","last_name":"Chatterjee","first_name":"Krishnendu","orcid":"0000-0002-4561-241X","id":"2E5DCA20-F248-11E8-B48F-1D18A9856A87"},{"full_name":"Doyen, Laurent","first_name":"Laurent","last_name":"Doyen"},{"first_name":"Thomas A","last_name":"Henzinger","id":"40876CD8-F248-11E8-B48F-1D18A9856A87","orcid":"0000−0002−2985−7724","full_name":"Henzinger, Thomas A"}],"month":"07","publication_identifier":{"issn":["0302-9743"],"isbn":["978-3-319-63120-2"]},"quality_controlled":"1","project":[{"grant_number":"S11402-N23","_id":"25F5A88A-B435-11E9-9278-68D0E5697425","name":"Moderne Concurrency Paradigms","call_identifier":"FWF"},{"call_identifier":"FWF","name":"Game Theory","grant_number":"S11407","_id":"25863FF4-B435-11E9-9278-68D0E5697425"},{"_id":"25F42A32-B435-11E9-9278-68D0E5697425","grant_number":"Z211","call_identifier":"FWF","name":"The Wittgenstein Prize"},{"call_identifier":"FP7","name":"Quantitative Graph Games: Theory and Applications","grant_number":"279307","_id":"2581B60A-B435-11E9-9278-68D0E5697425"},{"name":"Efficient Algorithms for Computer Aided 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The value decision problem for a quantitative objective requires a trace whose value is at least a given threshold, and the exact value decision problem requires a trace whose value is exactly the threshold. We compare the computational complexity of the value and exact value decision problems for classical quantitative objectives, such as sum, discounted sum, energy, and mean-payoff for two standard models of reactive systems, namely, graphs and graph games."}],"status":"public","title":"The cost of exactness in quantitative reachability","ddc":["000"],"intvolume":" 10460","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","_id":"625","file":[{"content_type":"application/pdf","file_size":192826,"creator":"dernst","access_level":"open_access","file_name":"2017_ModelsAlgorithms_Chatterjee.pdf","checksum":"b2402766ec02c79801aac634bd8f9f6c","date_updated":"2020-07-14T12:47:25Z","date_created":"2019-11-19T08:06:50Z","relation":"main_file","file_id":"7048"}],"oa_version":"Submitted Version","series_title":"Theoretical Computer Science and General Issues","scopus_import":"1","day":"25","has_accepted_license":"1","article_processing_charge":"No","page":"367 - 381","publication":"Models, Algorithms, Logics and Tools","citation":{"ista":"Chatterjee K, Doyen L, Henzinger TA. 2017.The cost of exactness in quantitative reachability. In: Models, Algorithms, Logics and Tools. LNCS, vol. 10460, 367–381.","apa":"Chatterjee, K., Doyen, L., & Henzinger, T. A. (2017). The cost of exactness in quantitative reachability. In L. Aceto, G. Bacci, A. Ingólfsdóttir, A. Legay, & R. Mardare (Eds.), Models, Algorithms, Logics and Tools (Vol. 10460, pp. 367–381). Springer. https://doi.org/10.1007/978-3-319-63121-9_18","ieee":"K. Chatterjee, L. Doyen, and T. A. Henzinger, “The cost of exactness in quantitative reachability,” in Models, Algorithms, Logics and Tools, vol. 10460, L. Aceto, G. Bacci, A. Ingólfsdóttir, A. Legay, and R. Mardare, Eds. Springer, 2017, pp. 367–381.","ama":"Chatterjee K, Doyen L, Henzinger TA. The cost of exactness in quantitative reachability. In: Aceto L, Bacci G, Ingólfsdóttir A, Legay A, Mardare R, eds. Models, Algorithms, Logics and Tools. Vol 10460. Theoretical Computer Science and General Issues. Springer; 2017:367-381. doi:10.1007/978-3-319-63121-9_18","chicago":"Chatterjee, Krishnendu, Laurent Doyen, and Thomas A Henzinger. “The Cost of Exactness in Quantitative Reachability.” In Models, Algorithms, Logics and Tools, edited by Luca Aceto, Giorgio Bacci, Anna Ingólfsdóttir, Axel Legay, and Radu Mardare, 10460:367–81. Theoretical Computer Science and General Issues. Springer, 2017. https://doi.org/10.1007/978-3-319-63121-9_18.","mla":"Chatterjee, Krishnendu, et al. “The Cost of Exactness in Quantitative Reachability.” Models, Algorithms, Logics and Tools, edited by Luca Aceto et al., vol. 10460, Springer, 2017, pp. 367–81, doi:10.1007/978-3-319-63121-9_18.","short":"K. Chatterjee, L. Doyen, T.A. Henzinger, in:, L. Aceto, G. Bacci, A. Ingólfsdóttir, A. Legay, R. Mardare (Eds.), Models, Algorithms, Logics and Tools, Springer, 2017, pp. 367–381."},"date_published":"2017-07-25T00:00:00Z"},{"alternative_title":["LNCS"],"type":"conference","abstract":[{"text":"A Rapidly-exploring Random Tree (RRT) is an algorithm which can search a non-convex region of space by incrementally building a space-filling tree. The tree is constructed from random points drawn from system’s state space and is biased to grow towards large unexplored areas in the system. RRT can provide better coverage of a system’s possible behaviors compared with random simulations, but is more lightweight than full reachability analysis. In this paper, we explore some of the design decisions encountered while implementing a hybrid extension of the RRT algorithm, which have not been elaborated on before. In particular, we focus on handling non-determinism, which arises due to discrete transitions. We introduce the notion of important points to account for this phenomena. We showcase our ideas using heater and navigation benchmarks.","lang":"eng"}],"status":"public","title":"Challenges and tool implementation of hybrid rapidly exploring random trees","intvolume":" 10381","_id":"633","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","oa_version":"None","scopus_import":1,"day":"01","page":"83 - 89","citation":{"ista":"Bak S, Bogomolov S, Henzinger TA, Kumar A. 2017. Challenges and tool implementation of hybrid rapidly exploring random trees. NSV: Numerical Software Verification, LNCS, vol. 10381, 83–89.","ieee":"S. Bak, S. Bogomolov, T. A. Henzinger, and A. Kumar, “Challenges and tool implementation of hybrid rapidly exploring random trees,” presented at the NSV: Numerical Software Verification, Heidelberg, Germany, 2017, vol. 10381, pp. 83–89.","apa":"Bak, S., Bogomolov, S., Henzinger, T. A., & Kumar, A. (2017). Challenges and tool implementation of hybrid rapidly exploring random trees. In A. Abate & S. Bodo (Eds.) (Vol. 10381, pp. 83–89). Presented at the NSV: Numerical Software Verification, Heidelberg, Germany: Springer. https://doi.org/10.1007/978-3-319-63501-9_6","ama":"Bak S, Bogomolov S, Henzinger TA, Kumar A. Challenges and tool implementation of hybrid rapidly exploring random trees. In: Abate A, Bodo S, eds. Vol 10381. Springer; 2017:83-89. doi:10.1007/978-3-319-63501-9_6","chicago":"Bak, Stanley, Sergiy Bogomolov, Thomas A Henzinger, and Aviral Kumar. “Challenges and Tool Implementation of Hybrid Rapidly Exploring Random Trees.” edited by Alessandro Abate and Sylvie Bodo, 10381:83–89. Springer, 2017. https://doi.org/10.1007/978-3-319-63501-9_6.","mla":"Bak, Stanley, et al. Challenges and Tool Implementation of Hybrid Rapidly Exploring Random Trees. Edited by Alessandro Abate and Sylvie Bodo, vol. 10381, Springer, 2017, pp. 83–89, doi:10.1007/978-3-319-63501-9_6.","short":"S. Bak, S. Bogomolov, T.A. Henzinger, A. Kumar, in:, A. Abate, S. Bodo (Eds.), Springer, 2017, pp. 83–89."},"date_published":"2017-01-01T00:00:00Z","publist_id":"7159","publication_status":"published","publisher":"Springer","editor":[{"full_name":"Abate, Alessandro","last_name":"Abate","first_name":"Alessandro"},{"full_name":"Bodo, Sylvie","first_name":"Sylvie","last_name":"Bodo"}],"department":[{"_id":"ToHe"}],"year":"2017","date_updated":"2021-01-12T08:07:06Z","date_created":"2018-12-11T11:47:37Z","volume":10381,"author":[{"first_name":"Stanley","last_name":"Bak","full_name":"Bak, Stanley"},{"first_name":"Sergiy","last_name":"Bogomolov","id":"369D9A44-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0002-0686-0365","full_name":"Bogomolov, Sergiy"},{"full_name":"Henzinger, Thomas A","orcid":"0000−0002−2985−7724","id":"40876CD8-F248-11E8-B48F-1D18A9856A87","last_name":"Henzinger","first_name":"Thomas A"},{"last_name":"Kumar","first_name":"Aviral","full_name":"Kumar, Aviral"}],"month":"01","publication_identifier":{"isbn":["978-331963500-2"]},"quality_controlled":"1","project":[{"grant_number":"S11402-N23","_id":"25F5A88A-B435-11E9-9278-68D0E5697425","name":"Moderne Concurrency Paradigms","call_identifier":"FWF"},{"_id":"25F42A32-B435-11E9-9278-68D0E5697425","grant_number":"Z211","name":"The Wittgenstein Prize","call_identifier":"FWF"}],"language":[{"iso":"eng"}],"conference":{"start_date":"2017-07-22","location":"Heidelberg, Germany","end_date":"2017-07-23","name":"NSV: Numerical Software Verification"},"doi":"10.1007/978-3-319-63501-9_6"},{"intvolume":" 10419","status":"public","title":"On the quantitative semantics of regular expressions over real-valued signals","user_id":"3E5EF7F0-F248-11E8-B48F-1D18A9856A87","_id":"636","oa_version":"Submitted Version","alternative_title":["LNCS"],"type":"conference","abstract":[{"lang":"eng","text":"Signal regular expressions can specify sequential properties of real-valued signals based on threshold conditions, regular operations, and duration constraints. In this paper we endow them with a quantitative semantics which indicates how robustly a signal matches or does not match a given expression. First, we show that this semantics is a safe approximation of a distance between the signal and the language defined by the expression. Then, we consider the robust matching problem, that is, computing the quantitative semantics of every segment of a given signal relative to an expression. We present an algorithm that solves this problem for piecewise-constant and piecewise-linear signals and show that for such signals the robustness map is a piecewise-linear function. The availability of an indicator describing how robustly a signal segment matches some regular pattern provides a general framework for quantitative monitoring of cyber-physical systems."}],"page":"189 - 206","citation":{"chicago":"Bakhirkin, Alexey, Thomas Ferrere, Oded Maler, and Dogan Ulus. “On the Quantitative Semantics of Regular Expressions over Real-Valued Signals.” edited by Alessandro Abate and Gilles Geeraerts, 10419:189–206. Springer, 2017. https://doi.org/10.1007/978-3-319-65765-3_11.","short":"A. Bakhirkin, T. Ferrere, O. Maler, D. Ulus, in:, A. Abate, G. Geeraerts (Eds.), Springer, 2017, pp. 189–206.","mla":"Bakhirkin, Alexey, et al. On the Quantitative Semantics of Regular Expressions over Real-Valued Signals. Edited by Alessandro Abate and Gilles Geeraerts, vol. 10419, Springer, 2017, pp. 189–206, doi:10.1007/978-3-319-65765-3_11.","apa":"Bakhirkin, A., Ferrere, T., Maler, O., & Ulus, D. (2017). On the quantitative semantics of regular expressions over real-valued signals. In A. Abate & G. Geeraerts (Eds.) (Vol. 10419, pp. 189–206). Presented at the FORMATS: Formal Modelling and Analysis of Timed Systems, Berlin, Germany: Springer. https://doi.org/10.1007/978-3-319-65765-3_11","ieee":"A. Bakhirkin, T. Ferrere, O. Maler, and D. Ulus, “On the quantitative semantics of regular expressions over real-valued signals,” presented at the FORMATS: Formal Modelling and Analysis of Timed Systems, Berlin, Germany, 2017, vol. 10419, pp. 189–206.","ista":"Bakhirkin A, Ferrere T, Maler O, Ulus D. 2017. On the quantitative semantics of regular expressions over real-valued signals. FORMATS: Formal Modelling and Analysis of Timed Systems, LNCS, vol. 10419, 189–206.","ama":"Bakhirkin A, Ferrere T, Maler O, Ulus D. On the quantitative semantics of regular expressions over real-valued signals. In: Abate A, Geeraerts G, eds. Vol 10419. Springer; 2017:189-206. doi:10.1007/978-3-319-65765-3_11"},"date_published":"2017-08-03T00:00:00Z","scopus_import":1,"day":"03","department":[{"_id":"ToHe"}],"publisher":"Springer","editor":[{"last_name":"Abate","first_name":"Alessandro","full_name":"Abate, Alessandro"},{"last_name":"Geeraerts","first_name":"Gilles","full_name":"Geeraerts, Gilles"}],"publication_status":"published","year":"2017","volume":10419,"date_created":"2018-12-11T11:47:38Z","date_updated":"2021-01-12T08:07:14Z","author":[{"last_name":"Bakhirkin","first_name":"Alexey","full_name":"Bakhirkin, Alexey"},{"first_name":"Thomas","last_name":"Ferrere","id":"40960E6E-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0001-5199-3143","full_name":"Ferrere, Thomas"},{"last_name":"Maler","first_name":"Oded","full_name":"Maler, Oded"},{"first_name":"Dogan","last_name":"Ulus","full_name":"Ulus, Dogan"}],"publist_id":"7152","project":[{"grant_number":"S11402-N23","_id":"25F5A88A-B435-11E9-9278-68D0E5697425","name":"Moderne Concurrency Paradigms","call_identifier":"FWF"},{"grant_number":"Z211","_id":"25F42A32-B435-11E9-9278-68D0E5697425","call_identifier":"FWF","name":"The Wittgenstein Prize"}],"quality_controlled":"1","oa":1,"main_file_link":[{"url":"https://hal.archives-ouvertes.fr/hal-01552132","open_access":"1"}],"language":[{"iso":"eng"}],"doi":"10.1007/978-3-319-65765-3_11","conference":{"start_date":"2017-09-05","location":"Berlin, Germany","end_date":"2017-09-07","name":"FORMATS: Formal Modelling and Analysis of Timed Systems"},"publication_identifier":{"isbn":["978-331965764-6"]},"month":"08"},{"date_created":"2018-12-11T11:47:38Z","date_updated":"2022-05-24T07:09:52Z","volume":10152,"oa_version":"None","publication_status":"published","status":"public","title":"Numerical Software Verification","editor":[{"full_name":"Bogomolov, Sergiy","last_name":"Bogomolov","first_name":"Sergiy","orcid":"0000-0002-0686-0365","id":"369D9A44-F248-11E8-B48F-1D18A9856A87"},{"last_name":"Martel","first_name":"Matthieu","full_name":"Martel, Matthieu"},{"last_name":"Prabhakar","first_name":"Pavithra","full_name":"Prabhakar, Pavithra"}],"intvolume":" 10152","publisher":"Springer","department":[{"_id":"ToHe"}],"year":"2017","_id":"638","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","abstract":[{"lang":"eng","text":"This book constitutes the refereed proceedings of the 9th InternationalWorkshop on Numerical Software Verification, NSV 2016, held in Toronto, ON, Canada in July 2011 - colocated with CAV 2016, the 28th International Conference on Computer Aided Verification.\r\nThe NSV workshop is dedicated to the development of logical and mathematical techniques for the reasoning about programmability and reliability."}],"publist_id":"7150","type":"conference_editor","language":[{"iso":"eng"}],"conference":{"name":"NSV: Numerical Software Verification","location":"Toronto, ON, Canada","start_date":"2016-07-17","end_date":"2016-07-18"},"date_published":"2017-01-01T00:00:00Z","doi":"10.1007/978-3-319-54292-8","quality_controlled":"1","citation":{"ama":"Bogomolov S, Martel M, Prabhakar P, eds. Numerical Software Verification. Vol 10152. Springer; 2017. doi:10.1007/978-3-319-54292-8","apa":"Bogomolov, S., Martel, M., & Prabhakar, P. (Eds.). (2017). Numerical Software Verification (Vol. 10152). Presented at the NSV: Numerical Software Verification, Toronto, ON, Canada: Springer. https://doi.org/10.1007/978-3-319-54292-8","ieee":"S. Bogomolov, M. Martel, and P. Prabhakar, Eds., Numerical Software Verification, vol. 10152. Springer, 2017.","ista":"Bogomolov S, Martel M, Prabhakar P eds. 2017. Numerical Software Verification, Springer,p.","short":"S. Bogomolov, M. Martel, P. Prabhakar, eds., Numerical Software Verification, Springer, 2017.","mla":"Bogomolov, Sergiy, et al., editors. Numerical Software Verification. Vol. 10152, Springer, 2017, doi:10.1007/978-3-319-54292-8.","chicago":"Bogomolov, Sergiy, Matthieu Martel, and Pavithra Prabhakar, eds. Numerical Software Verification. Vol. 10152. LNCS. Springer, 2017. https://doi.org/10.1007/978-3-319-54292-8."},"month":"01","day":"01","publication_identifier":{"issn":["0302-9743"],"eisbn":["978-3-319-54292-8"]},"article_processing_charge":"No","series_title":"LNCS"},{"month":"08","day":"04","has_accepted_license":"1","publication_identifier":{"issn":["2664-1690"]},"doi":"10.15479/AT:IST-2018-853-v2-2","date_published":"2017-08-04T00:00:00Z","language":[{"iso":"eng"}],"oa":1,"citation":{"chicago":"Henzinger, Thomas A, Bernhard Kragl, and Shaz Qadeer. Synchronizing the Asynchronous. IST Austria, 2017. https://doi.org/10.15479/AT:IST-2018-853-v2-2.","mla":"Henzinger, Thomas A., et al. Synchronizing the Asynchronous. IST Austria, 2017, doi:10.15479/AT:IST-2018-853-v2-2.","short":"T.A. Henzinger, B. Kragl, S. Qadeer, Synchronizing the Asynchronous, IST Austria, 2017.","ista":"Henzinger TA, Kragl B, Qadeer S. 2017. Synchronizing the asynchronous, IST Austria, 28p.","ieee":"T. A. Henzinger, B. Kragl, and S. Qadeer, Synchronizing the asynchronous. IST Austria, 2017.","apa":"Henzinger, T. A., Kragl, B., & Qadeer, S. (2017). Synchronizing the asynchronous. IST Austria. https://doi.org/10.15479/AT:IST-2018-853-v2-2","ama":"Henzinger TA, Kragl B, Qadeer S. Synchronizing the Asynchronous. IST Austria; 2017. doi:10.15479/AT:IST-2018-853-v2-2"},"page":"28","file_date_updated":"2020-07-14T12:47:30Z","abstract":[{"text":"Synchronous programs are easy to specify because the side effects of an operation are finished by the time the invocation of the operation returns to the caller. Asynchronous programs, on the other hand, are difficult to specify because there are side effects due to pending computation scheduled as a result of the invocation of an operation. They are also difficult to verify because of the large number of possible interleavings of concurrent asynchronous computation threads. We show that specifications and correctness proofs for asynchronous programs can be structured by introducing the fiction, for proof purposes, that intermediate, non-quiescent states of asynchronous operations can be ignored. Then, the task of specification becomes relatively simple and the task of verification can be naturally decomposed into smaller sub-tasks. The sub-tasks iteratively summarize, guided by the structure of an asynchronous program, the atomic effect of non-atomic operations and the synchronous effect of asynchronous operations. This structuring of specifications and proofs corresponds to the introduction of multiple layers of stepwise refinement for asynchronous programs. We present the first proof rule, called synchronization, to reduce asynchronous invocations on a lower layer to synchronous invocations on a higher layer. We implemented our proof method in CIVL and evaluated it on a collection of benchmark programs.","lang":"eng"}],"type":"technical_report","alternative_title":["IST Austria Technical Report"],"author":[{"orcid":"0000−0002−2985−7724","id":"40876CD8-F248-11E8-B48F-1D18A9856A87","last_name":"Henzinger","first_name":"Thomas A","full_name":"Henzinger, Thomas A"},{"orcid":"0000-0001-7745-9117","id":"320FC952-F248-11E8-B48F-1D18A9856A87","last_name":"Kragl","first_name":"Bernhard","full_name":"Kragl, Bernhard"},{"last_name":"Qadeer","first_name":"Shaz","full_name":"Qadeer, Shaz"}],"related_material":{"record":[{"id":"133","relation":"later_version","status":"public"}]},"date_updated":"2023-02-21T16:59:21Z","date_created":"2019-05-13T08:15:55Z","oa_version":"Published Version","file":[{"checksum":"b48d42725182d7ca10107a118815f4cf","date_updated":"2020-07-14T12:47:30Z","date_created":"2019-05-13T08:14:44Z","relation":"main_file","file_id":"6431","file_size":971347,"content_type":"application/pdf","creator":"dernst","access_level":"open_access","file_name":"main(1).pdf"}],"_id":"6426","year":"2017","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","publication_status":"published","ddc":["000"],"status":"public","title":"Synchronizing the asynchronous","publisher":"IST Austria","department":[{"_id":"ToHe"}]},{"type":"conference","abstract":[{"lang":"eng","text":"In this paper, we propose an approach to automatically compute invariant clusters for nonlinear semialgebraic hybrid systems. An invariant cluster for an ordinary differential equation (ODE) is a multivariate polynomial invariant g(u→, x→) = 0, parametric in u→, which can yield an infinite number of concrete invariants by assigning different values to u→ so that every trajectory of the system can be overapproximated precisely by the intersection of a group of concrete invariants. For semialgebraic systems, which involve ODEs with multivariate polynomial right-hand sides, given a template multivariate polynomial g(u→, x→), an invariant cluster can be obtained by first computing the remainder of the Lie derivative of g(u→, x→) divided by g(u→, x→) and then solving the system of polynomial equations obtained from the coefficients of the remainder. Based on invariant clusters and sum-of-squares (SOS) programming, we present a new method for the safety verification of hybrid systems. Experiments on nonlinear benchmark systems from biology and control theory show that our approach is efficient. "}],"title":"Safety verification of nonlinear hybrid systems based on invariant clusters","ddc":["000"],"status":"public","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","_id":"663","oa_version":"Submitted Version","file":[{"creator":"system","file_size":1650530,"content_type":"application/pdf","access_level":"open_access","file_name":"IST-2017-817-v1+1_p163-kong.pdf","checksum":"b7667434cbf5b5f0ade3bea1dbe5bf63","date_updated":"2020-07-14T12:47:34Z","date_created":"2018-12-12T10:11:20Z","file_id":"4873","relation":"main_file"}],"pubrep_id":"817","scopus_import":1,"day":"01","has_accepted_license":"1","page":"163 - 172","publication":"Proceedings of the 20th International Conference on Hybrid Systems","citation":{"apa":"Kong, H., Bogomolov, S., Schilling, C., Jiang, Y., & Henzinger, T. A. (2017). Safety verification of nonlinear hybrid systems based on invariant clusters. In Proceedings of the 20th International Conference on Hybrid Systems (pp. 163–172). Pittsburgh, PA, United States: ACM. https://doi.org/10.1145/3049797.3049814","ieee":"H. Kong, S. Bogomolov, C. Schilling, Y. Jiang, and T. A. Henzinger, “Safety verification of nonlinear hybrid systems based on invariant clusters,” in Proceedings of the 20th International Conference on Hybrid Systems, Pittsburgh, PA, United States, 2017, pp. 163–172.","ista":"Kong H, Bogomolov S, Schilling C, Jiang Y, Henzinger TA. 2017. Safety verification of nonlinear hybrid systems based on invariant clusters. Proceedings of the 20th International Conference on Hybrid Systems. HSCC: Hybrid Systems Computation and Control , 163–172.","ama":"Kong H, Bogomolov S, Schilling C, Jiang Y, Henzinger TA. Safety verification of nonlinear hybrid systems based on invariant clusters. In: Proceedings of the 20th International Conference on Hybrid Systems. ACM; 2017:163-172. doi:10.1145/3049797.3049814","chicago":"Kong, Hui, Sergiy Bogomolov, Christian Schilling, Yu Jiang, and Thomas A Henzinger. “Safety Verification of Nonlinear Hybrid Systems Based on Invariant Clusters.” In Proceedings of the 20th International Conference on Hybrid Systems, 163–72. ACM, 2017. https://doi.org/10.1145/3049797.3049814.","short":"H. Kong, S. Bogomolov, C. Schilling, Y. Jiang, T.A. Henzinger, in:, Proceedings of the 20th International Conference on Hybrid Systems, ACM, 2017, pp. 163–172.","mla":"Kong, Hui, et al. “Safety Verification of Nonlinear Hybrid Systems Based on Invariant Clusters.” Proceedings of the 20th International Conference on Hybrid Systems, ACM, 2017, pp. 163–72, doi:10.1145/3049797.3049814."},"date_published":"2017-04-01T00:00:00Z","file_date_updated":"2020-07-14T12:47:34Z","publist_id":"7067","publication_status":"published","department":[{"_id":"ToHe"}],"publisher":"ACM","year":"2017","date_created":"2018-12-11T11:47:47Z","date_updated":"2021-01-12T08:08:17Z","author":[{"last_name":"Kong","first_name":"Hui","orcid":"0000-0002-3066-6941","id":"3BDE25AA-F248-11E8-B48F-1D18A9856A87","full_name":"Kong, Hui"},{"full_name":"Bogomolov, Sergiy","orcid":"0000-0002-0686-0365","first_name":"Sergiy","last_name":"Bogomolov"},{"full_name":"Schilling, Christian","last_name":"Schilling","first_name":"Christian"},{"last_name":"Jiang","first_name":"Yu","full_name":"Jiang, Yu"},{"full_name":"Henzinger, Thomas A","orcid":"0000−0002−2985−7724","id":"40876CD8-F248-11E8-B48F-1D18A9856A87","last_name":"Henzinger","first_name":"Thomas A"}],"month":"04","publication_identifier":{"isbn":["978-145034590-3"]},"quality_controlled":"1","oa":1,"language":[{"iso":"eng"}],"conference":{"name":"HSCC: Hybrid Systems Computation and Control ","end_date":"2017-04-20","start_date":"2017-04-18","location":"Pittsburgh, PA, United States"},"doi":"10.1145/3049797.3049814"},{"day":"01","has_accepted_license":"1","scopus_import":1,"date_published":"2017-08-01T00:00:00Z","citation":{"ama":"Chatterjee K, Henzinger TA, Otop J. Bidirectional nested weighted automata. In: Vol 85. Schloss Dagstuhl - Leibniz-Zentrum für Informatik; 2017. doi:10.4230/LIPIcs.CONCUR.2017.5","ieee":"K. Chatterjee, T. A. Henzinger, and J. Otop, “Bidirectional nested weighted automata,” presented at the 28th International Conference on Concurrency Theory, CONCUR, Berlin, Germany, 2017, vol. 85.","apa":"Chatterjee, K., Henzinger, T. A., & Otop, J. (2017). Bidirectional nested weighted automata (Vol. 85). Presented at the 28th International Conference on Concurrency Theory, CONCUR, Berlin, Germany: Schloss Dagstuhl - Leibniz-Zentrum für Informatik. https://doi.org/10.4230/LIPIcs.CONCUR.2017.5","ista":"Chatterjee K, Henzinger TA, Otop J. 2017. Bidirectional nested weighted automata. 28th International Conference on Concurrency Theory, CONCUR, LIPIcs, vol. 85, 5.","short":"K. Chatterjee, T.A. Henzinger, J. Otop, in:, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2017.","mla":"Chatterjee, Krishnendu, et al. Bidirectional Nested Weighted Automata. Vol. 85, 5, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2017, doi:10.4230/LIPIcs.CONCUR.2017.5.","chicago":"Chatterjee, Krishnendu, Thomas A Henzinger, and Jan Otop. “Bidirectional Nested Weighted Automata,” Vol. 85. Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2017. https://doi.org/10.4230/LIPIcs.CONCUR.2017.5."},"abstract":[{"text":"Nested weighted automata (NWA) present a robust and convenient automata-theoretic formalism for quantitative specifications. Previous works have considered NWA that processed input words only in the forward direction. It is natural to allow the automata to process input words backwards as well, for example, to measure the maximal or average time between a response and the preceding request. We therefore introduce and study bidirectional NWA that can process input words in both directions. First, we show that bidirectional NWA can express interesting quantitative properties that are not expressible by forward-only NWA. Second, for the fundamental decision problems of emptiness and universality, we establish decidability and complexity results for the new framework which match the best-known results for the special case of forward-only NWA. Thus, for NWA, the increased expressiveness of bidirectionality is achieved at no additional computational complexity. This is in stark contrast to the unweighted case, where bidirectional finite automata are no more expressive but exponentially more succinct than their forward-only counterparts.","lang":"eng"}],"type":"conference","alternative_title":["LIPIcs"],"pubrep_id":"886","file":[{"creator":"system","file_size":570294,"content_type":"application/pdf","file_name":"IST-2017-886-v1+1_LIPIcs-CONCUR-2017-5.pdf","access_level":"open_access","date_updated":"2020-07-14T12:47:49Z","date_created":"2018-12-12T10:08:02Z","checksum":"d2bda4783821a6358333fe27f11f4737","file_id":"4661","relation":"main_file"}],"oa_version":"Published Version","user_id":"3E5EF7F0-F248-11E8-B48F-1D18A9856A87","_id":"711","title":"Bidirectional nested weighted automata","ddc":["004","005"],"status":"public","intvolume":" 85","month":"08","publication_identifier":{"issn":["18688969"]},"conference":{"start_date":"2017-09-05","location":"Berlin, Germany","end_date":"2017-09-08","name":"28th International Conference on Concurrency Theory, CONCUR"},"doi":"10.4230/LIPIcs.CONCUR.2017.5","language":[{"iso":"eng"}],"oa":1,"tmp":{"name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","short":"CC BY (4.0)","image":"/images/cc_by.png"},"quality_controlled":"1","file_date_updated":"2020-07-14T12:47:49Z","publist_id":"6976","article_number":"5","author":[{"last_name":"Chatterjee","first_name":"Krishnendu","orcid":"0000-0002-4561-241X","id":"2E5DCA20-F248-11E8-B48F-1D18A9856A87","full_name":"Chatterjee, Krishnendu"},{"full_name":"Henzinger, Thomas A","id":"40876CD8-F248-11E8-B48F-1D18A9856A87","orcid":"0000−0002−2985−7724","first_name":"Thomas A","last_name":"Henzinger"},{"last_name":"Otop","first_name":"Jan","full_name":"Otop, Jan"}],"date_created":"2018-12-11T11:48:04Z","date_updated":"2021-01-12T08:11:53Z","volume":85,"year":"2017","publication_status":"published","publisher":"Schloss Dagstuhl - Leibniz-Zentrum für Informatik","department":[{"_id":"KrCh"},{"_id":"ToHe"}]},{"year":"2017","publisher":"Schloss Dagstuhl - Leibniz-Zentrum für Informatik","department":[{"_id":"ToHe"}],"publication_status":"published","related_material":{"record":[{"id":"6005","status":"public","relation":"later_version"}]},"author":[{"full_name":"Avni, Guy","first_name":"Guy","last_name":"Avni","id":"463C8BC2-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0001-5588-8287"},{"last_name":"Guha","first_name":"Shibashis","full_name":"Guha, Shibashis"},{"full_name":"Kupferman, Orna","first_name":"Orna","last_name":"Kupferman"}],"volume":83,"date_created":"2018-12-11T11:49:26Z","date_updated":"2023-02-23T12:35:50Z","article_number":"37","publist_id":"6438","file_date_updated":"2020-07-14T12:48:18Z","oa":1,"tmp":{"name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","short":"CC BY (4.0)","image":"/images/cc_by.png"},"project":[{"grant_number":"S11402-N23","_id":"25F5A88A-B435-11E9-9278-68D0E5697425","name":"Moderne Concurrency Paradigms","call_identifier":"FWF"}],"quality_controlled":"1","doi":"10.4230/LIPIcs.MFCS.2017.37","conference":{"name":"MFCS: Mathematical Foundations of Computer Science (SG)","start_date":"2017-08-21","location":"Aalborg, Denmark","end_date":"2017-08-25"},"language":[{"iso":"eng"}],"publication_identifier":{"issn":["18688969"]},"month":"06","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","_id":"963","intvolume":" 83","status":"public","ddc":["004"],"title":"Timed network games with clocks","pubrep_id":"829","oa_version":"Published Version","file":[{"access_level":"open_access","file_name":"IST-2017-829-v1+1_mfcs-cr.pdf","creator":"system","file_size":369730,"content_type":"application/pdf","file_id":"5059","relation":"main_file","checksum":"f55eaf7f3c36ea07801112acfedd17d5","date_created":"2018-12-12T10:14:10Z","date_updated":"2020-07-14T12:48:18Z"}],"type":"conference","alternative_title":["LIPIcs"],"abstract":[{"lang":"eng","text":"Network games are widely used as a model for selfish resource-allocation problems. In the classical model, each player selects a path connecting her source and target vertex. The cost of traversing an edge depends on the number of players that traverse it. Thus, it abstracts the fact that different users may use a resource at different times and for different durations, which plays an important role in defining the costs of the users in reality. For example, when transmitting packets in a communication network, routing traffic in a road network, or processing a task in a production system, the traversal of the network involves an inherent delay, and so sharing and congestion of resources crucially depends on time. We study timed network games , which add a time component to network games. Each vertex v in the network is associated with a cost function, mapping the load on v to the price that a player pays for staying in v for one time unit with this load. In addition, each edge has a guard, describing time intervals in which the edge can be traversed, forcing the players to spend time on vertices. Unlike earlier work that add a time component to network games, the time in our model is continuous and cannot be discretized. In particular, players have uncountably many strategies, and a game may have uncountably many pure Nash equilibria. We study properties of timed network games with cost-sharing or congestion cost functions: their stability, equilibrium inefficiency, and complexity. In particular, we show that the answer to the question whether we can restrict attention to boundary strategies, namely ones in which edges are traversed only at the boundaries of guards, is mixed. "}],"citation":{"chicago":"Avni, Guy, Shibashis Guha, and Orna Kupferman. “Timed Network Games with Clocks,” Vol. 83. Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2017. https://doi.org/10.4230/LIPIcs.MFCS.2017.37.","mla":"Avni, Guy, et al. Timed Network Games with Clocks. Vol. 83, 37, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2017, doi:10.4230/LIPIcs.MFCS.2017.37.","short":"G. Avni, S. Guha, O. Kupferman, in:, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2017.","ista":"Avni G, Guha S, Kupferman O. 2017. Timed network games with clocks. MFCS: Mathematical Foundations of Computer Science (SG), LIPIcs, vol. 83, 37.","apa":"Avni, G., Guha, S., & Kupferman, O. (2017). Timed network games with clocks (Vol. 83). Presented at the MFCS: Mathematical Foundations of Computer Science (SG), Aalborg, Denmark: Schloss Dagstuhl - Leibniz-Zentrum für Informatik. https://doi.org/10.4230/LIPIcs.MFCS.2017.37","ieee":"G. Avni, S. Guha, and O. Kupferman, “Timed network games with clocks,” presented at the MFCS: Mathematical Foundations of Computer Science (SG), Aalborg, Denmark, 2017, vol. 83.","ama":"Avni G, Guha S, Kupferman O. Timed network games with clocks. In: Vol 83. Schloss Dagstuhl - Leibniz-Zentrum für Informatik; 2017. doi:10.4230/LIPIcs.MFCS.2017.37"},"date_published":"2017-06-01T00:00:00Z","scopus_import":1,"has_accepted_license":"1","day":"01"},{"day":"10","month":"07","scopus_import":1,"language":[{"iso":"eng"}],"doi":"10.1145/3092703.3098225","date_published":"2017-07-10T00:00:00Z","conference":{"end_date":"2017-07-14","location":"Santa Barbara, CA, United States","start_date":"2017-07-10","name":"ISSTA: International Symposium on Software Testing and Analysis"},"project":[{"grant_number":"S 11407_N23","_id":"25832EC2-B435-11E9-9278-68D0E5697425","name":"Rigorous Systems Engineering","call_identifier":"FWF"},{"name":"The Wittgenstein Prize","call_identifier":"FWF","grant_number":"Z211","_id":"25F42A32-B435-11E9-9278-68D0E5697425"}],"page":"376 - 379 ","quality_controlled":"1","citation":{"ista":"Le X, Chu DH, Lo D, Le Goues C, Visser W. 2017. JFIX: Semantics-based repair of Java programs via symbolic PathFinder. Proceedings of the 26th ACM SIGSOFT International Symposium on Software Testing and Analysis. ISSTA: International Symposium on Software Testing and Analysis, 376–379.","apa":"Le, X., Chu, D. H., Lo, D., Le Goues, C., & Visser, W. (2017). JFIX: Semantics-based repair of Java programs via symbolic PathFinder. In Proceedings of the 26th ACM SIGSOFT International Symposium on Software Testing and Analysis (pp. 376–379). Santa Barbara, CA, United States: ACM. https://doi.org/10.1145/3092703.3098225","ieee":"X. Le, D. H. Chu, D. Lo, C. Le Goues, and W. Visser, “JFIX: Semantics-based repair of Java programs via symbolic PathFinder,” in Proceedings of the 26th ACM SIGSOFT International Symposium on Software Testing and Analysis, Santa Barbara, CA, United States, 2017, pp. 376–379.","ama":"Le X, Chu DH, Lo D, Le Goues C, Visser W. JFIX: Semantics-based repair of Java programs via symbolic PathFinder. In: Proceedings of the 26th ACM SIGSOFT International Symposium on Software Testing and Analysis. ACM; 2017:376-379. doi:10.1145/3092703.3098225","chicago":"Le, Xuan, Duc Hiep Chu, David Lo, Claire Le Goues, and Willem Visser. “JFIX: Semantics-Based Repair of Java Programs via Symbolic PathFinder.” In Proceedings of the 26th ACM SIGSOFT International Symposium on Software Testing and Analysis, 376–79. ACM, 2017. https://doi.org/10.1145/3092703.3098225.","mla":"Le, Xuan, et al. “JFIX: Semantics-Based Repair of Java Programs via Symbolic PathFinder.” Proceedings of the 26th ACM SIGSOFT International Symposium on Software Testing and Analysis, ACM, 2017, pp. 376–79, doi:10.1145/3092703.3098225.","short":"X. Le, D.H. Chu, D. Lo, C. Le Goues, W. Visser, in:, Proceedings of the 26th ACM SIGSOFT International Symposium on Software Testing and Analysis, ACM, 2017, pp. 376–379."},"publication":"Proceedings of the 26th ACM SIGSOFT International Symposium on Software Testing and Analysis","publist_id":"6478","abstract":[{"lang":"eng","text":"Recently there has been a proliferation of automated program repair (APR) techniques, targeting various programming languages. Such techniques can be generally classified into two families: syntactic- and semantics-based. Semantics-based APR, on which we focus, typically uses symbolic execution to infer semantic constraints and then program synthesis to construct repairs conforming to them. While syntactic-based APR techniques have been shown successful on bugs in real-world programs written in both C and Java, semantics-based APR techniques mostly target C programs. This leaves empirical comparisons of the APR families not fully explored, and developers without a Java-based semantics APR technique. We present JFix, a semantics-based APR framework that targets Java, and an associated Eclipse plugin. JFix is implemented atop Symbolic PathFinder, a well-known symbolic execution engine for Java programs. It extends one particular APR technique (Angelix), and is designed to be sufficiently generic to support a variety of such techniques. We demonstrate that semantics-based APR can indeed efficiently and effectively repair a variety of classes of bugs in large real-world Java programs. This supports our claim that the framework can both support developers seeking semantics-based repair of bugs in Java programs, as well as enable larger scale empirical studies comparing syntactic- and semantics-based APR targeting Java. The demonstration of our tool is available via the project website at: https://xuanbachle.github.io/semanticsrepair/ "}],"type":"conference","oa_version":"None","date_created":"2018-12-11T11:49:19Z","date_updated":"2021-01-12T08:22:05Z","author":[{"full_name":"Le, Xuan","last_name":"Le","first_name":"Xuan"},{"full_name":"Chu, Duc Hiep","last_name":"Chu","first_name":"Duc Hiep","id":"3598E630-F248-11E8-B48F-1D18A9856A87"},{"full_name":"Lo, David","last_name":"Lo","first_name":"David"},{"last_name":"Le Goues","first_name":"Claire","full_name":"Le Goues, Claire"},{"full_name":"Visser, Willem","last_name":"Visser","first_name":"Willem"}],"department":[{"_id":"ToHe"}],"publisher":"ACM","title":"JFIX: Semantics-based repair of Java programs via symbolic PathFinder","publication_status":"published","status":"public","user_id":"3E5EF7F0-F248-11E8-B48F-1D18A9856A87","_id":"941","year":"2017"},{"tmp":{"name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","short":"CC BY (4.0)","image":"/images/cc_by.png"},"oa":1,"external_id":{"arxiv":["1705.01433"]},"quality_controlled":"1","project":[{"_id":"25832EC2-B435-11E9-9278-68D0E5697425","grant_number":"S 11407_N23","call_identifier":"FWF","name":"Rigorous Systems Engineering"},{"name":"The Wittgenstein Prize","call_identifier":"FWF","_id":"25F42A32-B435-11E9-9278-68D0E5697425","grant_number":"Z211"}],"conference":{"end_date":"2017-09-07","location":"Berlin, Germany","start_date":"2017-09-05","name":"CONCUR: Concurrency Theory"},"doi":"10.4230/LIPIcs.CONCUR.2017.21","language":[{"iso":"eng"}],"month":"09","publication_identifier":{"issn":["1868-8969"]},"year":"2017","publication_status":"published","publisher":"Schloss Dagstuhl - Leibniz-Zentrum für Informatik","department":[{"_id":"ToHe"},{"_id":"KrCh"}],"author":[{"full_name":"Avni, Guy","orcid":"0000-0001-5588-8287","id":"463C8BC2-F248-11E8-B48F-1D18A9856A87","last_name":"Avni","first_name":"Guy"},{"orcid":"0000−0002−2985−7724","id":"40876CD8-F248-11E8-B48F-1D18A9856A87","last_name":"Henzinger","first_name":"Thomas A","full_name":"Henzinger, Thomas A"},{"last_name":"Chonev","first_name":"Ventsislav K","id":"36CBE2E6-F248-11E8-B48F-1D18A9856A87","full_name":"Chonev, Ventsislav K"}],"related_material":{"record":[{"id":"6752","status":"public","relation":"later_version"}]},"date_created":"2018-12-11T11:49:22Z","date_updated":"2023-08-29T07:02:13Z","volume":85,"article_number":"17","file_date_updated":"2020-07-14T12:48:16Z","publist_id":"6466","citation":{"mla":"Avni, Guy, et al. Infinite-Duration Bidding Games. Vol. 85, 17, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2017, doi:10.4230/LIPIcs.CONCUR.2017.21.","short":"G. Avni, T.A. Henzinger, V.K. Chonev, in:, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2017.","chicago":"Avni, Guy, Thomas A Henzinger, and Ventsislav K Chonev. “Infinite-Duration Bidding Games,” Vol. 85. Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2017. https://doi.org/10.4230/LIPIcs.CONCUR.2017.21.","ama":"Avni G, Henzinger TA, Chonev VK. Infinite-duration bidding games. In: Vol 85. Schloss Dagstuhl - Leibniz-Zentrum für Informatik; 2017. doi:10.4230/LIPIcs.CONCUR.2017.21","ista":"Avni G, Henzinger TA, Chonev VK. 2017. Infinite-duration bidding games. CONCUR: Concurrency Theory, LIPIcs, vol. 85, 17.","apa":"Avni, G., Henzinger, T. A., & Chonev, V. K. (2017). Infinite-duration bidding games (Vol. 85). Presented at the CONCUR: Concurrency Theory, Berlin, Germany: Schloss Dagstuhl - Leibniz-Zentrum für Informatik. https://doi.org/10.4230/LIPIcs.CONCUR.2017.21","ieee":"G. Avni, T. A. Henzinger, and V. K. Chonev, “Infinite-duration bidding games,” presented at the CONCUR: Concurrency Theory, Berlin, Germany, 2017, vol. 85."},"date_published":"2017-09-01T00:00:00Z","scopus_import":1,"day":"01","has_accepted_license":"1","_id":"950","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","title":"Infinite-duration bidding games","ddc":["000"],"status":"public","intvolume":" 85","pubrep_id":"844","file":[{"date_created":"2018-12-12T10:18:00Z","date_updated":"2020-07-14T12:48:16Z","checksum":"6d5cccf755207b91ccbef95d8275b013","relation":"main_file","file_id":"5318","file_size":335170,"content_type":"application/pdf","creator":"system","file_name":"IST-2017-844-v1+1_concur-cr.pdf","access_level":"open_access"}],"oa_version":"Published Version","type":"conference","alternative_title":["LIPIcs"],"abstract":[{"lang":"eng","text":"Two-player games on graphs are widely studied in formal methods as they model the interaction between a system and its environment. The game is played by moving a token throughout a graph to produce an infinite path. There are several common modes to determine how the players move the token through the graph; e.g., in turn-based games the players alternate turns in moving the token. We study the bidding mode of moving the token, which, to the best of our knowledge, has never been studied in infinite-duration games. Both players have separate budgets, which sum up to $1$. In each turn, a bidding takes place. Both players submit bids simultaneously, and a bid is legal if it does not exceed the available budget. The winner of the bidding pays his bid to the other player and moves the token. For reachability objectives, repeated bidding games have been studied and are called Richman games. There, a central question is the existence and computation of threshold budgets; namely, a value t\\in [0,1] such that if\\PO's budget exceeds $t$, he can win the game, and if\\PT's budget exceeds 1-t, he can win the game. We focus on parity games and mean-payoff games. We show the existence of threshold budgets in these games, and reduce the problem of finding them to Richman games. We also determine the strategy-complexity of an optimal strategy. Our most interesting result shows that memoryless strategies suffice for mean-payoff bidding games. \r\n"}]}]