[{"oa_version":"Published Version","abstract":[{"lang":"eng","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."}],"month":"12","alternative_title":[" Advances in Neural Information Processing Systems"],"main_file_link":[{"open_access":"1","url":"https://proceedings.neurips.cc/paper/2021/hash/544defa9fddff50c53b71c43e0da72be-Abstract.html"}],"file":[{"date_updated":"2022-01-26T07:39:59Z","file_size":452492,"creator":"mlechner","date_created":"2022-01-26T07:39:59Z","file_name":"infinite_time_horizon_safety_o.pdf","content_type":"application/pdf","access_level":"open_access","relation":"main_file","file_id":"10682","checksum":"0fc0f852525c10dda9cc9ffea07fb4e4","success":1}],"language":[{"iso":"eng"}],"publication_status":"published","related_material":{"record":[{"relation":"dissertation_contains","id":"11362","status":"public"}]},"ec_funded":1,"license":"https://creativecommons.org/licenses/by-nc-nd/3.0/","_id":"10667","status":"public","type":"conference","conference":{"name":"NeurIPS: Neural Information Processing Systems","start_date":"2021-12-06","end_date":"2021-12-10","location":"Virtual"},"tmp":{"name":"Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported (CC BY-NC-ND 3.0)","image":"/images/cc_by_nc_nd.png","legal_code_url":"https://creativecommons.org/licenses/by-nc-nd/3.0/legalcode","short":"CC BY-NC-ND (3.0)"},"ddc":["000"],"date_updated":"2023-06-23T07:01:11Z","file_date_updated":"2022-01-26T07:39:59Z","department":[{"_id":"GradSch"},{"_id":"ToHe"},{"_id":"KrCh"}],"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.","quality_controlled":"1","oa":1,"day":"01","publication":"35th Conference on Neural Information Processing Systems","has_accepted_license":"1","year":"2021","date_published":"2021-12-01T00:00:00Z","doi":"10.48550/arXiv.2111.03165","date_created":"2022-01-25T15:45:58Z","project":[{"grant_number":"665385","name":"International IST Doctoral Program","call_identifier":"H2020","_id":"2564DBCA-B435-11E9-9278-68D0E5697425"},{"grant_number":"863818","name":"Formal Methods for Stochastic Models: Algorithms and Applications","_id":"0599E47C-7A3F-11EA-A408-12923DDC885E","call_identifier":"H2020"},{"grant_number":"Z211","name":"The Wittgenstein Prize","call_identifier":"FWF","_id":"25F42A32-B435-11E9-9278-68D0E5697425"}],"user_id":"2EBD1598-F248-11E8-B48F-1D18A9856A87","citation":{"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.","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","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","short":"M. Lechner, Ð. Žikelić, K. Chatterjee, T.A. Henzinger, in:, 35th Conference on Neural Information Processing Systems, 2021.","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.","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.","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, ."},"title":"Infinite time horizon safety of Bayesian neural networks","author":[{"full_name":"Lechner, Mathias","last_name":"Lechner","id":"3DC22916-F248-11E8-B48F-1D18A9856A87","first_name":"Mathias"},{"first_name":"Ðorđe","full_name":"Žikelić, Ðorđe","last_name":"Žikelić"},{"first_name":"Krishnendu","id":"2E5DCA20-F248-11E8-B48F-1D18A9856A87","last_name":"Chatterjee","full_name":"Chatterjee, Krishnendu","orcid":"0000-0002-4561-241X"},{"id":"40876CD8-F248-11E8-B48F-1D18A9856A87","first_name":"Thomas A","full_name":"Henzinger, Thomas A","orcid":"0000-0002-2985-7724","last_name":"Henzinger"}],"external_id":{"arxiv":["2111.03165"]},"article_processing_charge":"No"},{"user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","citation":{"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","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","short":"N.E. Sarac, Ö.F. Altun, K.T. Atam, S. Karahoda, K. Kaya, H. Yenigün, Expert Systems with Applications 167 (2021).","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.","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.","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.","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."},"title":"Boosting expensive synchronizing heuristics","author":[{"first_name":"Naci E","id":"8C6B42F8-C8E6-11E9-A03A-F2DCE5697425","full_name":"Sarac, Naci E","last_name":"Sarac"},{"full_name":"Altun, Ömer Faruk","last_name":"Altun","first_name":"Ömer Faruk"},{"first_name":"Kamil Tolga","last_name":"Atam","full_name":"Atam, Kamil Tolga"},{"first_name":"Sertac","full_name":"Karahoda, Sertac","last_name":"Karahoda"},{"last_name":"Kaya","full_name":"Kaya, Kamer","first_name":"Kamer"},{"last_name":"Yenigün","full_name":"Yenigün, Hüsnü","first_name":"Hüsnü"}],"article_processing_charge":"No","external_id":{"isi":["000640531100038"]},"article_number":"114203","project":[{"name":"The Wittgenstein Prize","grant_number":"Z211","_id":"25F42A32-B435-11E9-9278-68D0E5697425","call_identifier":"FWF"}],"day":"01","publication":"Expert Systems with Applications","has_accepted_license":"1","isi":1,"year":"2021","date_published":"2021-04-01T00:00:00Z","doi":"10.1016/j.eswa.2020.114203","date_created":"2020-12-02T13:34:25Z","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.","quality_controlled":"1","publisher":"Elsevier","oa":1,"ddc":["000"],"date_updated":"2023-08-04T11:19:00Z","file_date_updated":"2020-12-02T13:33:51Z","department":[{"_id":"ToHe"}],"_id":"8912","status":"public","type":"journal_article","article_type":"original","file":[{"file_id":"8913","checksum":"600c2f81bc898a725bcfa7cf26ff4fed","access_level":"open_access","relation":"main_file","content_type":"application/pdf","date_created":"2020-12-02T13:33:51Z","file_name":"synchroPaperRevised.pdf","creator":"esarac","date_updated":"2020-12-02T13:33:51Z","file_size":634967}],"language":[{"iso":"eng"}],"publication_identifier":{"issn":["09574174"]},"publication_status":"published","issue":"4","volume":167,"oa_version":"Submitted Version","abstract":[{"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.","lang":"eng"}],"month":"04","intvolume":" 167","scopus_import":"1"},{"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.","oa":1,"publisher":"Association for Computing Machinery","quality_controlled":"1","year":"2021","has_accepted_license":"1","isi":1,"publication":"HSCC '21: Proceedings of the 24th International Conference on Hybrid Systems: Computation and Control","day":"01","page":"2102.12734","date_created":"2021-02-26T16:30:39Z","date_published":"2021-05-01T00:00:00Z","doi":"10.1145/3447928.3456704","project":[{"_id":"25F42A32-B435-11E9-9278-68D0E5697425","call_identifier":"FWF","name":"The Wittgenstein Prize","grant_number":"Z211"},{"name":"ISTplus - Postdoctoral Fellowships","grant_number":"754411","_id":"260C2330-B435-11E9-9278-68D0E5697425","call_identifier":"H2020"}],"citation":{"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.","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.","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","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","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.","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.","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."},"user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","external_id":{"arxiv":["2102.12734"],"isi":["000932821700028"]},"article_processing_charge":"No","author":[{"last_name":"Garcia Soto","orcid":"0000-0003-2936-5719","full_name":"Garcia Soto, Miriam","first_name":"Miriam","id":"4B3207F6-F248-11E8-B48F-1D18A9856A87"},{"orcid":"0000-0002-2985-7724","full_name":"Henzinger, Thomas A","last_name":"Henzinger","first_name":"Thomas A","id":"40876CD8-F248-11E8-B48F-1D18A9856A87"},{"id":"3A2F4DCE-F248-11E8-B48F-1D18A9856A87","first_name":"Christian","full_name":"Schilling, Christian","orcid":"0000-0003-3658-1065","last_name":"Schilling"}],"title":"Synthesis of hybrid automata with affine dynamics from time-series data","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"}],"oa_version":"Published Version","scopus_import":"1","month":"05","publication_status":"published","publication_identifier":{"isbn":["9781450383394"]},"language":[{"iso":"eng"}],"file":[{"date_updated":"2021-05-25T13:53:22Z","file_size":1474786,"creator":"kschuh","date_created":"2021-05-25T13:53:22Z","file_name":"2021_HSCC_Soto.pdf","content_type":"application/pdf","access_level":"open_access","relation":"main_file","checksum":"4c1202c1abf71384c3ee6fea88c2f80e","file_id":"9424","success":1}],"ec_funded":1,"_id":"9200","tmp":{"legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","image":"/images/cc_by.png","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","short":"CC BY (4.0)"},"conference":{"end_date":"2021-05-21","location":"Nashville, TN, United States","start_date":"2021-05-19","name":"HSCC: International Conference on Hybrid Systems Computation and Control"},"type":"conference","keyword":["hybrid automaton","membership","system identification"],"status":"public","date_updated":"2023-08-07T13:49:33Z","ddc":["000"],"file_date_updated":"2021-05-25T13:53:22Z","department":[{"_id":"ToHe"}]},{"intvolume":" 119","month":"03","main_file_link":[{"url":"https://doi.org/10.48550/arXiv.1905.03835","open_access":"1"}],"scopus_import":"1","oa_version":"Preprint","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","related_material":{"record":[{"status":"public","id":"6884","relation":"earlier_version"}]},"volume":119,"language":[{"iso":"eng"}],"publication_status":"published","publication_identifier":{"eissn":["1090-2724"],"issn":["0022-0000"]},"status":"public","article_type":"original","type":"journal_article","_id":"9239","department":[{"_id":"ToHe"}],"date_updated":"2023-08-07T14:08:34Z","oa":1,"publisher":"Elsevier","quality_controlled":"1","date_created":"2021-03-14T23:01:32Z","date_published":"2021-03-03T00:00:00Z","doi":"10.1016/j.jcss.2021.02.008","page":"133-144","publication":"Journal of Computer and System Sciences","day":"03","year":"2021","isi":1,"title":"Bidding mechanisms in graph games","article_processing_charge":"No","external_id":{"arxiv":["1905.03835"],"isi":["000634149800009"]},"author":[{"first_name":"Guy","id":"463C8BC2-F248-11E8-B48F-1D18A9856A87","full_name":"Avni, Guy","orcid":"0000-0001-5588-8287","last_name":"Avni"},{"orcid":"0000-0002-2985-7724","full_name":"Henzinger, Thomas A","last_name":"Henzinger","first_name":"Thomas A","id":"40876CD8-F248-11E8-B48F-1D18A9856A87"},{"first_name":"Đorđe","last_name":"Žikelić","full_name":"Žikelić, Đorđe"}],"user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","citation":{"ista":"Avni G, Henzinger TA, Žikelić Đ. 2021. Bidding mechanisms in graph games. Journal of Computer and System Sciences. 119(8), 133–144.","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.","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","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","short":"G. Avni, T.A. Henzinger, Đ. Žikelić, Journal of Computer and System Sciences 119 (2021) 133–144.","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.","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."}},{"citation":{"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.","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","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.","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.","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.","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."},"user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","author":[{"first_name":"Thomas A","id":"40876CD8-F248-11E8-B48F-1D18A9856A87","full_name":"Henzinger, Thomas A","orcid":"0000-0002-2985-7724","last_name":"Henzinger"},{"first_name":"Naci E","id":"8C6B42F8-C8E6-11E9-A03A-F2DCE5697425","full_name":"Sarac, Naci E","last_name":"Sarac"}],"article_processing_charge":"No","external_id":{"isi":["000947350400021"],"arxiv":["2105.08353"]},"title":"Quantitative and approximate monitoring","article_number":"9470547","project":[{"grant_number":"Z211","name":"The Wittgenstein Prize","_id":"25F42A32-B435-11E9-9278-68D0E5697425","call_identifier":"FWF"}],"has_accepted_license":"1","isi":1,"year":"2021","day":"29","publication":"Proceedings of the 36th Annual ACM/IEEE Symposium on Logic in Computer Science","date_published":"2021-06-29T00:00:00Z","doi":"10.1109/LICS52264.2021.9470547","date_created":"2021-04-30T17:30:47Z","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).","quality_controlled":"1","publisher":"Institute of Electrical and Electronics Engineers","oa":1,"date_updated":"2023-08-08T13:52:56Z","ddc":["000"],"department":[{"_id":"GradSch"},{"_id":"ToHe"}],"file_date_updated":"2021-06-16T08:23:54Z","_id":"9356","type":"conference","conference":{"location":"Online","end_date":"2021-07-02","start_date":"2021-06-29","name":"LICS: Symposium on Logic in Computer Science"},"status":"public","publication_status":"published","file":[{"creator":"esarac","file_size":641990,"date_updated":"2021-06-16T08:23:54Z","file_name":"qam.pdf","date_created":"2021-06-16T08:23:54Z","relation":"main_file","access_level":"open_access","content_type":"application/pdf","success":1,"file_id":"9557","checksum":"6e4cba3f72775f479c5b1b75d1a4a0c4"}],"language":[{"iso":"eng"}],"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."}],"oa_version":"Published Version","scopus_import":"1","month":"06"},{"volume":893,"publication_status":"published","publication_identifier":{"issn":["0304-3975"]},"language":[{"iso":"eng"}],"file":[{"file_size":2566504,"date_updated":"2022-05-12T12:13:27Z","creator":"dernst","file_name":"2021_TheoreticalComputerScience_Petrov.pdf","date_created":"2022-05-12T12:13:27Z","content_type":"application/pdf","relation":"main_file","access_level":"open_access","success":1,"checksum":"d3aef34cfb13e53bba4cf44d01680793","file_id":"11364"}],"scopus_import":"1","intvolume":" 893","month":"06","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."}],"oa_version":"Published Version","file_date_updated":"2022-05-12T12:13:27Z","department":[{"_id":"ToHe"},{"_id":"CaGu"}],"date_updated":"2023-08-10T14:11:19Z","ddc":["004"],"tmp":{"short":"CC BY-NC-ND (4.0)","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","image":"/images/cc_by_nc_nd.png"},"type":"journal_article","article_type":"original","status":"public","_id":"9647","page":"1-16","date_created":"2021-07-11T22:01:18Z","date_published":"2021-06-04T00:00:00Z","doi":"10.1016/j.tcs.2021.05.023","year":"2021","isi":1,"has_accepted_license":"1","publication":"Theoretical Computer Science","day":"04","oa":1,"quality_controlled":"1","publisher":"Elsevier","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).","external_id":{"isi":["000710180500002"]},"article_processing_charge":"No","author":[{"last_name":"Petrov","full_name":"Petrov, Tatjana","first_name":"Tatjana"},{"id":"46613666-F248-11E8-B48F-1D18A9856A87","first_name":"Claudia","full_name":"Igler, Claudia","last_name":"Igler"},{"full_name":"Sezgin, Ali","last_name":"Sezgin","id":"4C7638DA-F248-11E8-B48F-1D18A9856A87","first_name":"Ali"},{"first_name":"Thomas A","id":"40876CD8-F248-11E8-B48F-1D18A9856A87","last_name":"Henzinger","orcid":"0000-0002-2985-7724","full_name":"Henzinger, Thomas A"},{"id":"47F8433E-F248-11E8-B48F-1D18A9856A87","first_name":"Calin C","full_name":"Guet, Calin C","orcid":"0000-0001-6220-2052","last_name":"Guet"}],"title":"Long lived transients in gene regulation","citation":{"ista":"Petrov T, Igler C, Sezgin A, Henzinger TA, Guet CC. 2021. Long lived transients in gene regulation. 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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."}],"oa_version":"Preprint","related_material":{"record":[{"relation":"extended_version","id":"9946","status":"public"}]},"volume":12974,"publication_identifier":{"eisbn":["978-3-030-88494-9"],"issn":["0302-9743"],"eissn":["1611-3349"],"isbn":["978-3-030-88493-2"]},"publication_status":"published","file":[{"date_created":"2021-10-07T23:32:18Z","file_name":"differentialmonitoring-cameraready-openaccess.pdf","date_updated":"2021-10-07T23:32:18Z","file_size":350632,"creator":"fmuehlbo","file_id":"10109","checksum":"554c7fdb259eda703a8b6328a6dad55a","success":1,"content_type":"application/pdf","access_level":"open_access","relation":"main_file"}],"language":[{"iso":"eng"}],"project":[{"_id":"25F42A32-B435-11E9-9278-68D0E5697425","call_identifier":"FWF","grant_number":"Z211","name":"The Wittgenstein Prize"}],"author":[{"last_name":"Mühlböck","orcid":"0000-0003-1548-0177","full_name":"Mühlböck, Fabian","id":"6395C5F6-89DF-11E9-9C97-6BDFE5697425","first_name":"Fabian"},{"full_name":"Henzinger, Thomas A","orcid":"0000-0002-2985-7724","last_name":"Henzinger","id":"40876CD8-F248-11E8-B48F-1D18A9856A87","first_name":"Thomas A"}],"external_id":{"isi":["000719383800012"]},"article_processing_charge":"No","title":"Differential monitoring","citation":{"chicago":"Mühlböck, Fabian, and Thomas A Henzinger. “Differential Monitoring.” In International Conference on Runtime Verification, 12974:231–43. 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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"}],"title":"Interactive analysis of CNN robustness","author":[{"last_name":"Sietzen","full_name":"Sietzen, Stefan","first_name":"Stefan"},{"id":"3DC22916-F248-11E8-B48F-1D18A9856A87","first_name":"Mathias","full_name":"Lechner, Mathias","last_name":"Lechner"},{"first_name":"Judy","last_name":"Borowski","full_name":"Borowski, Judy"},{"full_name":"Hasani, Ramin","last_name":"Hasani","first_name":"Ramin"},{"last_name":"Waldner","full_name":"Waldner, Manuela","first_name":"Manuela"}],"external_id":{"isi":["000722952000024"],"arxiv":["2110.07667"]},"article_processing_charge":"No","user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","citation":{"chicago":"Sietzen, Stefan, Mathias Lechner, Judy Borowski, Ramin Hasani, and Manuela Waldner. “Interactive Analysis of CNN Robustness.” Computer Graphics Forum. 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Wiley. https://doi.org/10.1111/cgf.14418"},"project":[{"name":"The Wittgenstein Prize","grant_number":"Z211","call_identifier":"FWF","_id":"25F42A32-B435-11E9-9278-68D0E5697425"}],"doi":"10.1111/cgf.14418","date_published":"2021-11-27T00:00:00Z","date_created":"2021-12-05T23:01:40Z","page":"253-264","day":"27","publication":"Computer Graphics Forum","isi":1,"year":"2021","publisher":"Wiley","quality_controlled":"1","oa":1,"acknowledgement":"We thank Robert Geirhos and Roland Zimmermann for their participation in the case study and valuable feedback, Chris Olah and Nick Cammarata for valuable discussions in the early phase of the project, as well as the Distill Slack workspace as a platform for discussions. 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"},{"isi":1,"has_accepted_license":"1","year":"2021","day":"03","publication":"Logical Methods in Computer Science","page":"10:1-10:23","date_published":"2021-02-03T00:00:00Z","doi":"10.23638/LMCS-17(1:10)2021","date_created":"2022-01-25T16:32:13Z","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","quality_controlled":"1","publisher":"International Federation for Computational Logic","oa":1,"citation":{"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.","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.","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.","short":"M. Aghajohari, G. Avni, T.A. Henzinger, Logical Methods in Computer Science 17 (2021) 10:1-10:23.","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","apa":"Aghajohari, M., Avni, G., & Henzinger, T. A. (2021). Determinacy in discrete-bidding infinite-duration games. 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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.","lang":"eng"}],"oa_version":"Published Version","scopus_import":"1","month":"02","intvolume":" 17","date_updated":"2023-08-17T06:56:42Z","ddc":["510"],"department":[{"_id":"ToHe"}],"file_date_updated":"2022-01-26T08:04:50Z","_id":"10674","type":"journal_article","article_type":"original","tmp":{"legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","image":"/images/cc_by.png","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","short":"CC BY (4.0)"},"status":"public","keyword":["computer science","computer science and game theory","logic in computer science"]},{"project":[{"grant_number":"Z211","name":"The Wittgenstein Prize","_id":"25F42A32-B435-11E9-9278-68D0E5697425","call_identifier":"FWF"}],"user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","citation":{"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.","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.","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","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","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.","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.","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."},"title":"Adversarial training is not ready for robot learning","author":[{"last_name":"Lechner","full_name":"Lechner, Mathias","first_name":"Mathias","id":"3DC22916-F248-11E8-B48F-1D18A9856A87"},{"last_name":"Hasani","full_name":"Hasani, Ramin","first_name":"Ramin"},{"first_name":"Radu","full_name":"Grosu, Radu","last_name":"Grosu"},{"first_name":"Daniela","last_name":"Rus","full_name":"Rus, Daniela"},{"last_name":"Henzinger","orcid":"0000-0002-2985-7724","full_name":"Henzinger, Thomas A","first_name":"Thomas A","id":"40876CD8-F248-11E8-B48F-1D18A9856A87"}],"external_id":{"arxiv":["2103.08187"],"isi":["000765738803040"]},"article_processing_charge":"No","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).","quality_controlled":"1","oa":1,"publication":"2021 IEEE International Conference on Robotics and Automation","isi":1,"has_accepted_license":"1","year":"2021","date_published":"2021-01-01T00:00:00Z","doi":"10.1109/ICRA48506.2021.9561036","date_created":"2022-01-25T15:44:54Z","page":"4140-4147","series_title":"ICRA","_id":"10666","status":"public","type":"conference","conference":{"start_date":"2021-05-30","location":"Xi'an, China","end_date":"2021-06-05","name":"ICRA: International Conference on Robotics and Automation"},"tmp":{"name":"Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported (CC BY-NC-ND 3.0)","image":"/images/cc_by_nc_nd.png","legal_code_url":"https://creativecommons.org/licenses/by-nc-nd/3.0/legalcode","short":"CC BY-NC-ND (3.0)"},"ddc":["000"],"date_updated":"2023-08-17T06:58:38Z","department":[{"_id":"GradSch"},{"_id":"ToHe"}],"oa_version":"None","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"}],"main_file_link":[{"url":"https://arxiv.org/abs/2103.08187","open_access":"1"}],"language":[{"iso":"eng"}],"publication_identifier":{"issn":["1050-4729"],"eissn":["2577-087X"],"isbn":["978-1-7281-9078-5"],"eisbn":["978-1-7281-9077-8"]},"publication_status":"published","related_material":{"record":[{"relation":"dissertation_contains","id":"11362","status":"public"}]}},{"isi":1,"year":"2021","day":"06","publication":"21st International Conference on Runtime Verification","page":"42-61","doi":"10.1007/978-3-030-88494-9_3","date_published":"2021-10-06T00:00:00Z","date_created":"2021-10-31T23:01:31Z","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.","quality_controlled":"1","publisher":"Springer Nature","oa":1,"citation":{"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","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","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.","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.","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.","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."},"user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","author":[{"id":"CBA4D1A8-0FE8-11E9-BDE6-07BFE5697425","first_name":"Anna","last_name":"Lukina","full_name":"Lukina, Anna"},{"id":"3A2F4DCE-F248-11E8-B48F-1D18A9856A87","first_name":"Christian","last_name":"Schilling","full_name":"Schilling, Christian","orcid":"0000-0003-3658-1065"},{"last_name":"Henzinger","orcid":"0000-0002-2985-7724","full_name":"Henzinger, Thomas A","id":"40876CD8-F248-11E8-B48F-1D18A9856A87","first_name":"Thomas A"}],"article_processing_charge":"No","external_id":{"isi":["000719383800003"],"arxiv":["2009.06429"]},"title":"Into the unknown: active monitoring of neural networks","project":[{"name":"ISTplus - Postdoctoral Fellowships","grant_number":"754411","_id":"260C2330-B435-11E9-9278-68D0E5697425","call_identifier":"H2020"},{"name":"The Wittgenstein Prize","grant_number":"Z211","_id":"25F42A32-B435-11E9-9278-68D0E5697425","call_identifier":"FWF"}],"publication_identifier":{"eisbn":["978-3-030-88494-9"],"issn":["0302-9743"],"isbn":["9-783-0308-8493-2"],"eissn":["1611-3349"]},"publication_status":"published","language":[{"iso":"eng"}],"volume":"12974 ","related_material":{"record":[{"relation":"extended_version","id":"13234","status":"public"}]},"ec_funded":1,"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."}],"oa_version":"Preprint","alternative_title":["LNCS"],"scopus_import":"1","main_file_link":[{"url":"https://arxiv.org/abs/2009.06429","open_access":"1"}],"month":"10","place":"Cham","date_updated":"2024-01-30T12:06:56Z","department":[{"_id":"ToHe"}],"_id":"10206","type":"conference","conference":{"name":"RV: Runtime Verification","location":"Virtual","end_date":"2021-10-14","start_date":"2021-10-11"},"status":"public","keyword":["monitoring","neural networks","novelty detection"]},{"publication":"Proceedings of the 37th International Conference on Machine Learning","has_accepted_license":"1","year":"2020","date_published":"2020-01-01T00:00:00Z","date_created":"2022-01-25T15:50:34Z","page":"4082-4093","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","quality_controlled":"1","oa":1,"user_id":"8b945eb4-e2f2-11eb-945a-df72226e66a9","citation":{"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.","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.","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.","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.","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.","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.","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."},"title":"A natural lottery ticket winner: Reinforcement learning with ordinary neural circuits","author":[{"last_name":"Hasani","full_name":"Hasani, Ramin","first_name":"Ramin"},{"first_name":"Mathias","id":"3DC22916-F248-11E8-B48F-1D18A9856A87","full_name":"Lechner, Mathias","last_name":"Lechner"},{"first_name":"Alexander","last_name":"Amini","full_name":"Amini, Alexander"},{"first_name":"Daniela","full_name":"Rus, Daniela","last_name":"Rus"},{"last_name":"Grosu","full_name":"Grosu, Radu","first_name":"Radu"}],"article_processing_charge":"No","project":[{"_id":"25F42A32-B435-11E9-9278-68D0E5697425","call_identifier":"FWF","grant_number":"Z211","name":"The Wittgenstein Prize"}],"file":[{"success":1,"file_id":"10691","checksum":"c9a4a29161777fc1a89ef451c040e3b1","content_type":"application/pdf","relation":"main_file","access_level":"open_access","file_name":"2020_PMLR_Hasani.pdf","date_created":"2022-01-26T11:08:51Z","file_size":2329798,"date_updated":"2022-01-26T11:08:51Z","creator":"cchlebak"}],"language":[{"iso":"eng"}],"publication_identifier":{"issn":["2640-3498"]},"publication_status":"published","oa_version":"Published Version","abstract":[{"lang":"eng","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."}],"alternative_title":["PMLR"],"scopus_import":"1","main_file_link":[{"open_access":"1","url":"http://proceedings.mlr.press/v119/hasani20a.html"}],"ddc":["000"],"date_updated":"2022-01-26T11:14:27Z","department":[{"_id":"GradSch"},{"_id":"ToHe"}],"file_date_updated":"2022-01-26T11:08:51Z","_id":"10673","series_title":"PMLR","status":"public","type":"conference","tmp":{"name":"Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported (CC BY-NC-ND 3.0)","image":"/images/cc_by_nc_nd.png","legal_code_url":"https://creativecommons.org/licenses/by-nc-nd/3.0/legalcode","short":"CC BY-NC-ND (3.0)"},"conference":{"start_date":"2020-07-12","end_date":"2020-07-18","location":"Virtual","name":"ML: Machine Learning"}},{"oa_version":"Published Version","abstract":[{"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. ","lang":"eng"}],"month":"01","intvolume":" 152","alternative_title":["LIPIcs"],"scopus_import":1,"file":[{"access_level":"open_access","relation":"main_file","content_type":"application/pdf","file_id":"7349","checksum":"b9a691d658d075c6369d3304d17fb818","creator":"bkragl","date_updated":"2020-07-14T12:47:56Z","file_size":617206,"date_created":"2020-01-21T11:21:04Z","file_name":"main.pdf"}],"language":[{"iso":"eng"}],"publication_identifier":{"issn":["1868-8969"],"isbn":["9783959771320"]},"publication_status":"published","volume":152,"_id":"7348","status":"public","type":"conference","tmp":{"legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","image":"/images/cc_by.png","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","short":"CC BY (4.0)"},"conference":{"name":"CSL: Computer Science Logic","start_date":"2020-01-13","location":"Barcelona, Spain","end_date":"2020-01-16"},"ddc":["000"],"date_updated":"2021-01-12T08:13:12Z","file_date_updated":"2020-07-14T12:47:56Z","department":[{"_id":"ToHe"}],"publisher":"Schloss Dagstuhl - Leibniz-Zentrum für Informatik","quality_controlled":"1","oa":1,"day":"15","publication":"28th EACSL Annual Conference on Computer Science Logic","has_accepted_license":"1","year":"2020","doi":"10.4230/LIPIcs.CSL.2020.20","date_published":"2020-01-15T00:00:00Z","date_created":"2020-01-21T11:22:21Z","article_number":"20","project":[{"name":"Rigorous Systems Engineering","grant_number":"S11402-N23","_id":"25F2ACDE-B435-11E9-9278-68D0E5697425","call_identifier":"FWF"},{"_id":"25F42A32-B435-11E9-9278-68D0E5697425","call_identifier":"FWF","name":"The Wittgenstein Prize","grant_number":"Z211"}],"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","citation":{"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.","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.","short":"T. Ferrere, T.A. Henzinger, B. Kragl, in:, 28th EACSL Annual Conference on Computer Science Logic, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2020.","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","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","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.","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."},"title":"Monitoring event frequencies","author":[{"id":"40960E6E-F248-11E8-B48F-1D18A9856A87","first_name":"Thomas","last_name":"Ferrere","full_name":"Ferrere, Thomas","orcid":"0000-0001-5199-3143"},{"first_name":"Thomas A","id":"40876CD8-F248-11E8-B48F-1D18A9856A87","full_name":"Henzinger, Thomas A","orcid":"0000−0002−2985−7724","last_name":"Henzinger"},{"id":"320FC952-F248-11E8-B48F-1D18A9856A87","first_name":"Bernhard","last_name":"Kragl","orcid":"0000-0001-7745-9117","full_name":"Kragl, Bernhard"}],"external_id":{"arxiv":["1910.06097"]},"article_processing_charge":"No"},{"author":[{"last_name":"Althoff","full_name":"Althoff, Matthias","first_name":"Matthias"},{"first_name":"Stanley","full_name":"Bak, Stanley","last_name":"Bak"},{"first_name":"Zongnan","last_name":"Bao","full_name":"Bao, Zongnan"},{"last_name":"Forets","full_name":"Forets, Marcelo","first_name":"Marcelo"},{"full_name":"Frehse, Goran","last_name":"Frehse","first_name":"Goran"},{"first_name":"Daniel","full_name":"Freire, Daniel","last_name":"Freire"},{"last_name":"Kochdumper","full_name":"Kochdumper, Niklas","first_name":"Niklas"},{"first_name":"Yangge","full_name":"Li, Yangge","last_name":"Li"},{"first_name":"Sayan","full_name":"Mitra, Sayan","last_name":"Mitra"},{"first_name":"Rajarshi","full_name":"Ray, Rajarshi","last_name":"Ray"},{"last_name":"Schilling","orcid":"0000-0003-3658-1065","full_name":"Schilling, Christian","first_name":"Christian","id":"3A2F4DCE-F248-11E8-B48F-1D18A9856A87"},{"first_name":"Stefan","full_name":"Schupp, Stefan","last_name":"Schupp"},{"full_name":"Wetzlinger, Mark","last_name":"Wetzlinger","first_name":"Mark"}],"article_processing_charge":"No","title":"ARCH-COMP20 Category Report: Continuous and hybrid systems with linear dynamics","citation":{"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.","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.","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","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.","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."},"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","project":[{"name":"The Wittgenstein Prize","grant_number":"Z00312","_id":"25C5A090-B435-11E9-9278-68D0E5697425","call_identifier":"FWF"},{"name":"ISTplus - Postdoctoral Fellowships","grant_number":"754411","call_identifier":"H2020","_id":"260C2330-B435-11E9-9278-68D0E5697425"}],"page":"16-48","date_published":"2020-09-25T00:00:00Z","doi":"10.29007/7dt2","date_created":"2020-09-26T14:49:43Z","year":"2020","day":"25","publication":"EPiC Series in Computing","publisher":"EasyChair","quality_controlled":"1","oa":1,"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.","department":[{"_id":"ToHe"}],"date_updated":"2021-01-12T08:20:06Z","type":"conference","conference":{"name":"ARCH: International Workshop on Applied Verification on Continuous and Hybrid Systems","start_date":"2020-07-12","end_date":"2020-07-12"},"status":"public","_id":"8572","volume":74,"ec_funded":1,"publication_status":"published","language":[{"iso":"eng"}],"main_file_link":[{"open_access":"1","url":"https://easychair.org/publications/download/DRpS"}],"month":"09","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."}],"oa_version":"Published Version"},{"oa":1,"quality_controlled":"1","publisher":"EasyChair","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.","date_created":"2020-09-26T14:41:29Z","doi":"10.29007/zkf6","date_published":"2020-09-25T00:00:00Z","page":"49-75","publication":"EPiC Series in Computing","day":"25","year":"2020","project":[{"grant_number":"754411","name":"ISTplus - Postdoctoral Fellowships","_id":"260C2330-B435-11E9-9278-68D0E5697425","call_identifier":"H2020"},{"call_identifier":"FWF","_id":"25F42A32-B435-11E9-9278-68D0E5697425","name":"The Wittgenstein Prize","grant_number":"Z211"}],"title":"ARCH-COMP20 Category Report: Continuous and hybrid systems with nonlinear dynamics","article_processing_charge":"No","author":[{"first_name":"Luca","last_name":"Geretti","full_name":"Geretti, Luca"},{"first_name":"Julien","full_name":"Alexandre Dit Sandretto, Julien","last_name":"Alexandre Dit Sandretto"},{"last_name":"Althoff","full_name":"Althoff, Matthias","first_name":"Matthias"},{"last_name":"Benet","full_name":"Benet, Luis","first_name":"Luis"},{"full_name":"Chapoutot, Alexandre","last_name":"Chapoutot","first_name":"Alexandre"},{"last_name":"Chen","full_name":"Chen, Xin","first_name":"Xin"},{"last_name":"Collins","full_name":"Collins, Pieter","first_name":"Pieter"},{"full_name":"Forets, Marcelo","last_name":"Forets","first_name":"Marcelo"},{"last_name":"Freire","full_name":"Freire, Daniel","first_name":"Daniel"},{"full_name":"Immler, Fabian","last_name":"Immler","first_name":"Fabian"},{"full_name":"Kochdumper, Niklas","last_name":"Kochdumper","first_name":"Niklas"},{"last_name":"Sanders","full_name":"Sanders, David","first_name":"David"},{"last_name":"Schilling","full_name":"Schilling, Christian","orcid":"0000-0003-3658-1065","id":"3A2F4DCE-F248-11E8-B48F-1D18A9856A87","first_name":"Christian"}],"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","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.","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.","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.","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","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","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.","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."},"intvolume":" 74","month":"09","main_file_link":[{"url":"https://easychair.org/publications/download/nrdD","open_access":"1"}],"oa_version":"Published Version","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"}],"ec_funded":1,"volume":74,"language":[{"iso":"eng"}],"publication_status":"published","status":"public","conference":{"name":"ARCH: International Workshop on Applied Verification on Continuous and Hybrid Systems","start_date":"2020-07-12","end_date":"2020-07-12"},"type":"conference","_id":"8571","department":[{"_id":"ToHe"}],"date_updated":"2021-01-12T08:20:06Z"},{"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","citation":{"short":"K. Chatterjee, T.A. Henzinger, J. Otop, in:, 31st International Conference on Concurrency Theory, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2020.","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.","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","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","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.","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.","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."},"title":"Multi-dimensional long-run average problems for vector addition systems with states","article_processing_charge":"No","external_id":{"arxiv":["2007.08917"]},"author":[{"id":"2E5DCA20-F248-11E8-B48F-1D18A9856A87","first_name":"Krishnendu","last_name":"Chatterjee","full_name":"Chatterjee, Krishnendu","orcid":"0000-0002-4561-241X"},{"first_name":"Thomas A","id":"40876CD8-F248-11E8-B48F-1D18A9856A87","full_name":"Henzinger, Thomas A","orcid":"0000-0002-2985-7724","last_name":"Henzinger"},{"full_name":"Otop, Jan","last_name":"Otop","id":"2FC5DA74-F248-11E8-B48F-1D18A9856A87","first_name":"Jan"}],"article_number":"23","project":[{"name":"Rigorous Systems Engineering","grant_number":"S 11407_N23","_id":"25832EC2-B435-11E9-9278-68D0E5697425","call_identifier":"FWF"},{"call_identifier":"FWF","_id":"25F2ACDE-B435-11E9-9278-68D0E5697425","grant_number":"S11402-N23","name":"Rigorous Systems Engineering"},{"name":"The Wittgenstein Prize","grant_number":"Z211","_id":"25F42A32-B435-11E9-9278-68D0E5697425","call_identifier":"FWF"}],"publication":"31st International Conference on Concurrency Theory","day":"06","year":"2020","has_accepted_license":"1","date_created":"2020-10-04T22:01:36Z","date_published":"2020-08-06T00:00:00Z","doi":"10.4230/LIPIcs.CONCUR.2020.23","oa":1,"publisher":"Schloss Dagstuhl - Leibniz-Zentrum für Informatik","quality_controlled":"1","ddc":["000"],"date_updated":"2021-01-12T08:20:15Z","file_date_updated":"2020-10-05T14:04:25Z","department":[{"_id":"KrCh"},{"_id":"ToHe"}],"_id":"8600","status":"public","conference":{"name":"CONCUR: Conference on Concurrency Theory","location":"Virtual","end_date":"2020-09-04","start_date":"2020-09-01"},"tmp":{"short":"CC BY (3.0)","image":"/images/cc_by.png","legal_code_url":"https://creativecommons.org/licenses/by/3.0/legalcode","name":"Creative Commons Attribution 3.0 Unported (CC BY 3.0)"},"type":"conference","language":[{"iso":"eng"}],"file":[{"file_name":"2020_LIPIcsCONCUR_Chatterjee.pdf","date_created":"2020-10-05T14:04:25Z","creator":"dernst","file_size":601231,"date_updated":"2020-10-05T14:04:25Z","success":1,"file_id":"8610","checksum":"5039752f644c4b72b9361d21a5e31baf","relation":"main_file","access_level":"open_access","content_type":"application/pdf"}],"publication_status":"published","publication_identifier":{"isbn":["9783959771603"],"issn":["18688969"]},"license":"https://creativecommons.org/licenses/by/3.0/","volume":171,"oa_version":"Published Version","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"}],"intvolume":" 171","month":"08","alternative_title":["LIPIcs"],"scopus_import":"1"},{"abstract":[{"lang":"eng","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."}],"oa_version":"Published Version","scopus_import":"1","alternative_title":["LIPIcs"],"intvolume":" 171","month":"08","publication_status":"published","publication_identifier":{"issn":["18688969"],"isbn":["9783959771603"]},"language":[{"iso":"eng"}],"file":[{"content_type":"application/pdf","access_level":"open_access","relation":"main_file","file_id":"8611","checksum":"8f33b098e73724e0ac817f764d8e1a2d","success":1,"date_updated":"2020-10-05T14:13:19Z","file_size":868510,"creator":"dernst","date_created":"2020-10-05T14:13:19Z","file_name":"2020_LIPIcsCONCUR_Avni.pdf"}],"volume":171,"_id":"8599","tmp":{"short":"CC BY (3.0)","image":"/images/cc_by.png","legal_code_url":"https://creativecommons.org/licenses/by/3.0/legalcode","name":"Creative Commons Attribution 3.0 Unported (CC BY 3.0)"},"conference":{"name":"CONCUR: Conference on Concurrency Theory","end_date":"2020-09-04","location":"Virtual","start_date":"2020-09-01"},"type":"conference","status":"public","date_updated":"2021-01-12T08:20:13Z","ddc":["000"],"file_date_updated":"2020-10-05T14:13:19Z","department":[{"_id":"ToHe"}],"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.","oa":1,"publisher":"Schloss Dagstuhl - Leibniz-Zentrum für Informatik","quality_controlled":"1","year":"2020","has_accepted_license":"1","publication":"31st International Conference on Concurrency Theory","day":"06","date_created":"2020-10-04T22:01:36Z","doi":"10.4230/LIPIcs.CONCUR.2020.2","date_published":"2020-08-06T00:00:00Z","article_number":"2","project":[{"call_identifier":"FWF","_id":"25F42A32-B435-11E9-9278-68D0E5697425","grant_number":"Z211","name":"The Wittgenstein Prize"}],"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.","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.","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","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","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.","short":"G. Avni, T.A. Henzinger, in:, 31st International Conference on Concurrency Theory, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2020.","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."},"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","article_processing_charge":"No","author":[{"full_name":"Avni, Guy","orcid":"0000-0001-5588-8287","last_name":"Avni","id":"463C8BC2-F248-11E8-B48F-1D18A9856A87","first_name":"Guy"},{"last_name":"Henzinger","full_name":"Henzinger, Thomas A","orcid":"0000-0002-2985-7724","first_name":"Thomas A","id":"40876CD8-F248-11E8-B48F-1D18A9856A87"}],"title":"A survey of bidding games on graphs"},{"project":[{"call_identifier":"FWF","_id":"25F42A32-B435-11E9-9278-68D0E5697425","name":"The Wittgenstein Prize","grant_number":"Z211"}],"title":"Formal methods with a touch of magic","author":[{"full_name":"Alamdari, Par Alizadeh","last_name":"Alamdari","first_name":"Par Alizadeh"},{"first_name":"Guy","id":"463C8BC2-F248-11E8-B48F-1D18A9856A87","last_name":"Avni","orcid":"0000-0001-5588-8287","full_name":"Avni, Guy"},{"last_name":"Henzinger","full_name":"Henzinger, Thomas A","orcid":"0000-0002-2985-7724","first_name":"Thomas A","id":"40876CD8-F248-11E8-B48F-1D18A9856A87"},{"last_name":"Lukina","full_name":"Lukina, Anna","first_name":"Anna","id":"CBA4D1A8-0FE8-11E9-BDE6-07BFE5697425"}],"article_processing_charge":"No","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","citation":{"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.","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.","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.","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","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","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.","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."},"quality_controlled":"1","publisher":"TU Wien Academic Press","oa":1,"acknowledgement":"This research was supported in part by the Austrian Science Fund (FWF) under grant Z211-N23 (Wittgenstein Award).","doi":"10.34727/2020/isbn.978-3-85448-042-6_21","date_published":"2020-09-21T00:00:00Z","date_created":"2021-01-24T23:01:10Z","page":"138-147","day":"21","publication":"Proceedings of the 20th Conference on Formal Methods in Computer-Aided Design","has_accepted_license":"1","year":"2020","status":"public","type":"conference","conference":{"start_date":"2020-09-21","location":"Online Conference","end_date":"2020-09-24","name":" FMCAD: Formal Methods in Computer-Aided Design"},"tmp":{"legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","image":"/images/cc_by.png","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","short":"CC BY (4.0)"},"_id":"9040","department":[{"_id":"ToHe"}],"file_date_updated":"2021-02-09T09:39:02Z","ddc":["000"],"date_updated":"2021-02-09T09:39:59Z","month":"09","scopus_import":"1","oa_version":"Published Version","abstract":[{"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.","lang":"eng"}],"file":[{"date_created":"2021-02-09T09:39:02Z","file_name":"2020_FMCAD_Alamdari.pdf","creator":"dernst","date_updated":"2021-02-09T09:39:02Z","file_size":990999,"checksum":"d616d549a0ade78606b16f8a9540820f","file_id":"9109","success":1,"access_level":"open_access","relation":"main_file","content_type":"application/pdf"}],"language":[{"iso":"eng"}],"publication_identifier":{"isbn":["9783854480426"],"eissn":["2708-7824"]},"publication_status":"published"},{"citation":{"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.","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.","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.","short":"S.P. Singh, D.-A. Alistarh, in:, Advances in Neural Information Processing Systems, Curran Associates, 2020, pp. 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.","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.","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."},"user_id":"6785fbc1-c503-11eb-8a32-93094b40e1cf","article_processing_charge":"No","external_id":{"arxiv":["2004.14340"]},"author":[{"last_name":"Singh","full_name":"Singh, Sidak Pal","id":"DD138E24-D89D-11E9-9DC0-DEF6E5697425","first_name":"Sidak Pal"},{"id":"4A899BFC-F248-11E8-B48F-1D18A9856A87","first_name":"Dan-Adrian","orcid":"0000-0003-3650-940X","full_name":"Alistarh, Dan-Adrian","last_name":"Alistarh"}],"title":"WoodFisher: Efficient second-order approximation for neural network compression","project":[{"_id":"268A44D6-B435-11E9-9278-68D0E5697425","call_identifier":"H2020","name":"Elastic Coordination for Scalable Machine Learning","grant_number":"805223"}],"year":"2020","publication":"Advances in Neural Information Processing Systems","day":"06","page":"18098-18109","date_created":"2021-07-04T22:01:26Z","date_published":"2020-12-06T00:00:00Z","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.","oa":1,"publisher":"Curran Associates","quality_controlled":"1","date_updated":"2023-02-23T14:03:06Z","department":[{"_id":"DaAl"},{"_id":"ToHe"}],"_id":"9632","conference":{"start_date":"2020-12-06","location":"Vancouver, Canada","end_date":"2020-12-12","name":"NeurIPS: Conference on Neural Information Processing Systems"},"type":"conference","status":"public","publication_status":"published","publication_identifier":{"issn":["10495258"],"isbn":["9781713829546"]},"language":[{"iso":"eng"}],"ec_funded":1,"volume":33,"abstract":[{"lang":"eng","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."}],"oa_version":"Published Version","main_file_link":[{"url":"https://proceedings.neurips.cc/paper/2020/hash/d1ff1ec86b62cd5f3903ff19c3a326b2-Abstract.html","open_access":"1"}],"scopus_import":"1","intvolume":" 33","month":"12"},{"title":"Lagrangian reachtubes: The next generation","article_processing_charge":"No","external_id":{"arxiv":["2012.07458"]},"author":[{"full_name":"Gruenbacher, Sophie","last_name":"Gruenbacher","first_name":"Sophie"},{"first_name":"Jacek","last_name":"Cyranka","full_name":"Cyranka, Jacek"},{"last_name":"Lechner","full_name":"Lechner, Mathias","first_name":"Mathias","id":"3DC22916-F248-11E8-B48F-1D18A9856A87"},{"last_name":"Islam","full_name":"Islam, Md Ariful","first_name":"Md Ariful"},{"last_name":"Smolka","full_name":"Smolka, Scott A.","first_name":"Scott A."},{"first_name":"Radu","last_name":"Grosu","full_name":"Grosu, Radu"}],"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","citation":{"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","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","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.","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.","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.","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.","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."},"project":[{"_id":"25F42A32-B435-11E9-9278-68D0E5697425","call_identifier":"FWF","name":"The Wittgenstein Prize","grant_number":"Z211"}],"date_created":"2021-02-07T23:01:14Z","doi":"10.1109/CDC42340.2020.9304042","date_published":"2020-12-14T00:00:00Z","page":"1556-1563","publication":"Proceedings of the 59th IEEE Conference on Decision and Control","day":"14","year":"2020","oa":1,"quality_controlled":"1","publisher":"IEEE","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","department":[{"_id":"ToHe"}],"date_updated":"2021-02-09T09:20:58Z","status":"public","conference":{"location":"Jeju Islang, Korea (South)","end_date":"2020-12-18","start_date":"2020-12-14","name":"CDC: Conference on Decision and Control"},"type":"conference","_id":"9103","volume":2020,"language":[{"iso":"eng"}],"publication_status":"published","publication_identifier":{"isbn":["9781728174471"],"issn":["07431546"]},"intvolume":" 2020","month":"12","main_file_link":[{"open_access":"1","url":"https://arxiv.org/abs/2012.07458"}],"scopus_import":"1","oa_version":"Preprint","abstract":[{"lang":"eng","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*."}]},{"oa":1,"quality_controlled":"1","publisher":"ICLR","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_published":"2020-03-11T00:00:00Z","year":"2020","has_accepted_license":"1","publication":"8th International Conference on Learning Representations","day":"11","project":[{"call_identifier":"FWF","_id":"25F42A32-B435-11E9-9278-68D0E5697425","name":"The Wittgenstein Prize","grant_number":"Z211"}],"article_processing_charge":"No","author":[{"first_name":"Mathias","id":"3DC22916-F248-11E8-B48F-1D18A9856A87","full_name":"Lechner, Mathias","last_name":"Lechner"}],"title":"Learning representations for binary-classification without backpropagation","citation":{"apa":"Lechner, M. (2020). Learning representations for binary-classification without backpropagation. In 8th International Conference on Learning Representations. Virtual ; Addis Ababa, Ethiopia: ICLR.","ama":"Lechner M. Learning representations for binary-classification without backpropagation. In: 8th International Conference on Learning Representations. ICLR; 2020.","ieee":"M. Lechner, “Learning representations for binary-classification without backpropagation,” in 8th International Conference on Learning Representations, Virtual ; Addis Ababa, Ethiopia, 2020.","short":"M. Lechner, 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.","ista":"Lechner M. 2020. Learning representations for binary-classification without backpropagation. 8th International Conference on Learning Representations. ICLR: International Conference on Learning Representations.","chicago":"Lechner, Mathias. “Learning Representations for Binary-Classification without Backpropagation.” In 8th International Conference on Learning Representations. ICLR, 2020."},"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","main_file_link":[{"url":"https://openreview.net/forum?id=Bke61krFvS","open_access":"1"}],"scopus_import":"1","month":"03","abstract":[{"lang":"eng","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."}],"oa_version":"Published Version","publication_status":"published","language":[{"iso":"eng"}],"file":[{"file_name":"iclr_2020.pdf","date_created":"2022-01-26T07:35:17Z","file_size":249431,"date_updated":"2022-01-26T07:35:17Z","creator":"mlechner","success":1,"checksum":"ea13d42dd4541ddb239b6a75821fd6c9","file_id":"10677","content_type":"application/pdf","relation":"main_file","access_level":"open_access"}],"tmp":{"name":"Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported (CC BY-NC-ND 3.0)","image":"/images/cc_by_nc_nd.png","legal_code_url":"https://creativecommons.org/licenses/by-nc-nd/3.0/legalcode","short":"CC BY-NC-ND (3.0)"},"conference":{"end_date":"2020-05-01","location":"Virtual ; Addis Ababa, Ethiopia","start_date":"2020-04-26","name":"ICLR: International Conference on Learning Representations"},"type":"conference","status":"public","_id":"10672","file_date_updated":"2022-01-26T07:35:17Z","department":[{"_id":"GradSch"},{"_id":"ToHe"}],"date_updated":"2023-04-03T07:33:40Z","ddc":["000"]},{"oa_version":"Published Version","abstract":[{"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.","lang":"eng"}],"month":"04","intvolume":" 12079","scopus_import":1,"alternative_title":["LNCS"],"file":[{"file_id":"7893","checksum":"f19905a42891fe5ce93d69143fa3f6fb","content_type":"application/pdf","relation":"main_file","access_level":"open_access","file_name":"2020_TACAS_Giacobbe.pdf","date_created":"2020-05-26T12:48:15Z","file_size":2744030,"date_updated":"2020-07-14T12:48:03Z","creator":"dernst"}],"language":[{"iso":"eng"}],"publication_identifier":{"issn":["03029743"],"eissn":["16113349"],"isbn":["9783030452360"]},"publication_status":"published","related_material":{"record":[{"relation":"dissertation_contains","id":"11362","status":"public"}]},"volume":12079,"_id":"7808","status":"public","type":"conference","tmp":{"legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","image":"/images/cc_by.png","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","short":"CC BY (4.0)"},"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"},"ddc":["000"],"date_updated":"2023-06-23T07:01:11Z","department":[{"_id":"ToHe"}],"file_date_updated":"2020-07-14T12:48:03Z","publisher":"Springer Nature","quality_controlled":"1","oa":1,"day":"17","publication":"International Conference on Tools and Algorithms for the Construction and Analysis of Systems","has_accepted_license":"1","year":"2020","date_published":"2020-04-17T00:00:00Z","doi":"10.1007/978-3-030-45237-7_5","date_created":"2020-05-10T22:00:49Z","page":"79-97","project":[{"_id":"25832EC2-B435-11E9-9278-68D0E5697425","call_identifier":"FWF","name":"Rigorous Systems Engineering","grant_number":"S 11407_N23"},{"grant_number":"Z211","name":"The Wittgenstein Prize","call_identifier":"FWF","_id":"25F42A32-B435-11E9-9278-68D0E5697425"}],"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","citation":{"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.","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.","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.","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","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.","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."},"title":"How many bits does it take to quantize your neural network?","author":[{"orcid":"0000-0001-8180-0904","full_name":"Giacobbe, Mirco","last_name":"Giacobbe","id":"3444EA5E-F248-11E8-B48F-1D18A9856A87","first_name":"Mirco"},{"last_name":"Henzinger","full_name":"Henzinger, Thomas A","orcid":"0000-0002-2985-7724","first_name":"Thomas A","id":"40876CD8-F248-11E8-B48F-1D18A9856A87"},{"last_name":"Lechner","full_name":"Lechner, Mathias","first_name":"Mathias","id":"3DC22916-F248-11E8-B48F-1D18A9856A87"}],"article_processing_charge":"No"},{"_id":"6761","status":"public","type":"journal_article","article_type":"original","ddc":["000"],"date_updated":"2023-08-17T13:52:49Z","file_date_updated":"2020-10-09T06:31:22Z","department":[{"_id":"ToHe"}],"oa_version":"Submitted Version","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"}],"month":"02","intvolume":" 807","scopus_import":"1","file":[{"creator":"dernst","file_size":1413001,"date_updated":"2020-10-09T06:31:22Z","file_name":"2020_TheoreticalCS_Avni.pdf","date_created":"2020-10-09T06:31:22Z","relation":"main_file","access_level":"open_access","content_type":"application/pdf","success":1,"file_id":"8639","checksum":"e86635417f45eb2cd75778f91382f737"}],"language":[{"iso":"eng"}],"publication_identifier":{"issn":["03043975"]},"publication_status":"published","volume":807,"related_material":{"record":[{"id":"1341","status":"public","relation":"earlier_version"}]},"project":[{"grant_number":"S11402-N23","name":"Rigorous Systems Engineering","call_identifier":"FWF","_id":"25F2ACDE-B435-11E9-9278-68D0E5697425"},{"call_identifier":"FWF","_id":"25F42A32-B435-11E9-9278-68D0E5697425","grant_number":"Z211","name":"The Wittgenstein Prize"},{"grant_number":"M02369","name":"Formal Methods meets Algorithmic Game Theory","_id":"264B3912-B435-11E9-9278-68D0E5697425","call_identifier":"FWF"}],"user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","citation":{"ista":"Avni G, Henzinger TA, Kupferman O. 2020. Dynamic resource allocation games. Theoretical Computer Science. 807, 42–55.","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.","short":"G. Avni, T.A. Henzinger, O. Kupferman, Theoretical Computer Science 807 (2020) 42–55.","ieee":"G. Avni, T. A. Henzinger, and O. Kupferman, “Dynamic resource allocation games,” Theoretical Computer Science, vol. 807. Elsevier, pp. 42–55, 2020.","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","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."},"title":"Dynamic resource allocation games","author":[{"last_name":"Avni","orcid":"0000-0001-5588-8287","full_name":"Avni, Guy","id":"463C8BC2-F248-11E8-B48F-1D18A9856A87","first_name":"Guy"},{"last_name":"Henzinger","orcid":"0000−0002−2985−7724","full_name":"Henzinger, Thomas A","first_name":"Thomas A","id":"40876CD8-F248-11E8-B48F-1D18A9856A87"},{"last_name":"Kupferman","full_name":"Kupferman, Orna","first_name":"Orna"}],"external_id":{"isi":["000512219400004"]},"article_processing_charge":"No","quality_controlled":"1","publisher":"Elsevier","oa":1,"day":"06","publication":"Theoretical Computer Science","has_accepted_license":"1","isi":1,"year":"2020","date_published":"2020-02-06T00:00:00Z","doi":"10.1016/j.tcs.2019.06.031","date_created":"2019-08-04T21:59:20Z","page":"42-55"},{"file_date_updated":"2020-09-21T07:12:32Z","department":[{"_id":"ToHe"}],"ddc":["000"],"date_updated":"2023-08-18T06:38:16Z","status":"public","tmp":{"legal_code_url":"https://creativecommons.org/licenses/by-nc/4.0/legalcode","image":"/images/cc_by_nc.png","name":"Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)","short":"CC BY-NC (4.0)"},"conference":{"name":"ECAI: European Conference on Artificial Intelligence","start_date":"2020-08-29","end_date":"2020-09-08","location":"Santiago de Compostela, Spain"},"type":"conference","_id":"7505","ec_funded":1,"volume":325,"language":[{"iso":"eng"}],"file":[{"success":1,"file_id":"8540","checksum":"80642fa0b6cd7da95dcd87d63789ad5e","relation":"main_file","access_level":"open_access","content_type":"application/pdf","file_name":"2020_ECAI_Henzinger.pdf","date_created":"2020-09-21T07:12:32Z","creator":"dernst","file_size":1692214,"date_updated":"2020-09-21T07:12:32Z"}],"publication_status":"published","intvolume":" 325","month":"02","alternative_title":["Frontiers in Artificial Intelligence and Applications"],"oa_version":"Published Version","abstract":[{"lang":"eng","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."}],"title":"Outside the box: Abstraction-based monitoring of neural networks","article_processing_charge":"No","external_id":{"isi":["000650971303002"],"arxiv":["1911.09032"]},"author":[{"last_name":"Henzinger","full_name":"Henzinger, Thomas A","orcid":"0000-0002-2985-7724","id":"40876CD8-F248-11E8-B48F-1D18A9856A87","first_name":"Thomas A"},{"last_name":"Lukina","full_name":"Lukina, Anna","first_name":"Anna","id":"CBA4D1A8-0FE8-11E9-BDE6-07BFE5697425"},{"id":"3A2F4DCE-F248-11E8-B48F-1D18A9856A87","first_name":"Christian","last_name":"Schilling","full_name":"Schilling, Christian","orcid":"0000-0003-3658-1065"}],"user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","citation":{"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.","short":"T.A. Henzinger, A. Lukina, C. Schilling, in:, 24th European Conference on Artificial Intelligence, IOS Press, 2020, pp. 2433–2440.","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","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","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.","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.","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."},"project":[{"grant_number":"754411","name":"ISTplus - Postdoctoral Fellowships","call_identifier":"H2020","_id":"260C2330-B435-11E9-9278-68D0E5697425"},{"grant_number":"S 11407_N23","name":"Rigorous Systems Engineering","_id":"25832EC2-B435-11E9-9278-68D0E5697425","call_identifier":"FWF"},{"call_identifier":"FWF","_id":"25F42A32-B435-11E9-9278-68D0E5697425","name":"The Wittgenstein Prize","grant_number":"Z211"}],"date_created":"2020-02-21T16:44:03Z","date_published":"2020-02-24T00:00:00Z","doi":"10.3233/FAIA200375","page":"2433-2440","publication":"24th European Conference on Artificial Intelligence","day":"24","year":"2020","has_accepted_license":"1","isi":1,"oa":1,"quality_controlled":"1","publisher":"IOS Press","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."},{"date_updated":"2023-08-22T08:27:25Z","department":[{"_id":"ToHe"}],"_id":"8194","status":"public","conference":{"name":"IJCAR: International Joint Conference on Automated Reasoning","start_date":"2020-07-01","end_date":"2020-07-04","location":"Paris, France"},"type":"conference","language":[{"iso":"eng"}],"publication_status":"published","publication_identifier":{"issn":["03029743"],"eissn":["16113349"],"isbn":["9783030510732"]},"volume":12166,"oa_version":"Published Version","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."}],"intvolume":" 12166","month":"06","main_file_link":[{"url":"https://doi.org/10.1007/978-3-030-51074-9_2","open_access":"1"}],"scopus_import":"1","alternative_title":["LNCS"],"user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","citation":{"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.","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.","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.","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.","short":"M. Baranowski, S. He, M. Lechner, T.S. Nguyen, Z. Rakamarić, in:, Automated Reasoning, Springer Nature, 2020, 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","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"},"title":"An SMT theory of fixed-point arithmetic","external_id":{"isi":["000884318000002"]},"article_processing_charge":"No","author":[{"last_name":"Baranowski","full_name":"Baranowski, Marek","first_name":"Marek"},{"first_name":"Shaobo","last_name":"He","full_name":"He, Shaobo"},{"first_name":"Mathias","id":"3DC22916-F248-11E8-B48F-1D18A9856A87","full_name":"Lechner, Mathias","last_name":"Lechner"},{"full_name":"Nguyen, Thanh Son","last_name":"Nguyen","first_name":"Thanh Son"},{"full_name":"Rakamarić, Zvonimir","last_name":"Rakamarić","first_name":"Zvonimir"}],"project":[{"grant_number":"Z211","name":"The Wittgenstein Prize","call_identifier":"FWF","_id":"25F42A32-B435-11E9-9278-68D0E5697425"}],"publication":"Automated Reasoning","day":"24","year":"2020","isi":1,"date_created":"2020-08-02T22:00:59Z","doi":"10.1007/978-3-030-51074-9_2","date_published":"2020-06-24T00:00:00Z","page":"13-31","oa":1,"quality_controlled":"1","publisher":"Springer Nature"},{"title":"Neural circuit policies enabling auditable autonomy","author":[{"last_name":"Lechner","full_name":"Lechner, Mathias","first_name":"Mathias","id":"3DC22916-F248-11E8-B48F-1D18A9856A87"},{"full_name":"Hasani, Ramin","last_name":"Hasani","first_name":"Ramin"},{"first_name":"Alexander","last_name":"Amini","full_name":"Amini, Alexander"},{"full_name":"Henzinger, Thomas A","orcid":"0000-0002-2985-7724","last_name":"Henzinger","id":"40876CD8-F248-11E8-B48F-1D18A9856A87","first_name":"Thomas A"},{"first_name":"Daniela","last_name":"Rus","full_name":"Rus, Daniela"},{"first_name":"Radu","full_name":"Grosu, Radu","last_name":"Grosu"}],"article_processing_charge":"No","external_id":{"isi":["000583337200011"]},"user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","citation":{"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.","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.","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","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","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.","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."},"project":[{"grant_number":"Z211","name":"The Wittgenstein Prize","call_identifier":"FWF","_id":"25F42A32-B435-11E9-9278-68D0E5697425"}],"date_published":"2020-10-01T00:00:00Z","doi":"10.1038/s42256-020-00237-3","date_created":"2020-10-19T13:46:06Z","page":"642-652","day":"01","publication":"Nature Machine Intelligence","isi":1,"year":"2020","quality_controlled":"1","publisher":"Springer Nature","department":[{"_id":"ToHe"}],"date_updated":"2023-08-22T10:36:06Z","status":"public","article_type":"original","type":"journal_article","_id":"8679","volume":2,"related_material":{"link":[{"url":"https://ist.ac.at/en/news/new-deep-learning-models/","relation":"press_release","description":"News on IST Homepage"}]},"language":[{"iso":"eng"}],"publication_identifier":{"eissn":["2522-5839"]},"publication_status":"published","month":"10","intvolume":" 2","scopus_import":"1","oa_version":"None","abstract":[{"lang":"eng","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."}]},{"publication_status":"published","publication_identifier":{"isbn":["9781728173955"],"issn":["10504729"]},"language":[{"iso":"eng"}],"file":[{"content_type":"application/pdf","access_level":"open_access","relation":"main_file","file_id":"8733","checksum":"fccf7b986ac78046918a298cc6849a50","success":1,"date_updated":"2020-11-06T10:58:49Z","file_size":1070010,"creator":"dernst","date_created":"2020-11-06T10:58:49Z","file_name":"2020_ICRA_Lechner.pdf"}],"alternative_title":["ICRA"],"scopus_import":"1","month":"05","abstract":[{"lang":"eng","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."}],"oa_version":"Submitted Version","department":[{"_id":"ToHe"}],"file_date_updated":"2020-11-06T10:58:49Z","date_updated":"2023-08-22T10:40:15Z","ddc":["000"],"conference":{"end_date":"2020-08-31","location":"Paris, France","start_date":"2020-05-31","name":"ICRA: International Conference on Robotics and Automation"},"type":"conference","status":"public","_id":"8704","page":"5446-5452","date_created":"2020-10-25T23:01:19Z","date_published":"2020-05-01T00:00:00Z","doi":"10.1109/ICRA40945.2020.9196608","year":"2020","has_accepted_license":"1","isi":1,"publication":"Proceedings - IEEE International Conference on Robotics and Automation","day":"01","oa":1,"publisher":"IEEE","quality_controlled":"1","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.","external_id":{"isi":["000712319503110"]},"article_processing_charge":"No","author":[{"first_name":"Mathias","id":"3DC22916-F248-11E8-B48F-1D18A9856A87","last_name":"Lechner","full_name":"Lechner, Mathias"},{"last_name":"Hasani","full_name":"Hasani, Ramin","first_name":"Ramin"},{"first_name":"Daniela","last_name":"Rus","full_name":"Rus, Daniela"},{"first_name":"Radu","last_name":"Grosu","full_name":"Grosu, Radu"}],"title":"Gershgorin loss stabilizes the recurrent neural network compartment of an end-to-end robot learning scheme","citation":{"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.","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.","short":"M. Lechner, R. Hasani, D. Rus, R. Grosu, in:, Proceedings - IEEE International Conference on Robotics and Automation, IEEE, 2020, pp. 5446–5452.","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.","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","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","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."},"user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","project":[{"name":"The Wittgenstein Prize","grant_number":"Z211","_id":"25F42A32-B435-11E9-9278-68D0E5697425","call_identifier":"FWF"}]},{"language":[{"iso":"eng"}],"publication_status":"published","publication_identifier":{"isbn":["9781728191485"]},"ec_funded":1,"oa_version":"Preprint","abstract":[{"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.","lang":"eng"}],"month":"12","main_file_link":[{"open_access":"1","url":"https://arxiv.org/abs/2006.12325"}],"scopus_import":"1","date_updated":"2023-08-22T12:48:18Z","department":[{"_id":"ToHe"}],"_id":"8750","status":"public","conference":{"name":"MEMOCODE: Conference on Formal Methods and Models for System Design","start_date":"2020-12-02","end_date":"2020-12-04","location":"Virtual Conference"},"type":"conference","publication":"18th ACM-IEEE International Conference on Formal Methods and Models for System Design","day":"04","year":"2020","isi":1,"date_created":"2020-11-10T07:04:57Z","doi":"10.1109/MEMOCODE51338.2020.9314994","date_published":"2020-12-04T00:00:00Z","oa":1,"publisher":"IEEE","quality_controlled":"1","user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","citation":{"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","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","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.","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.","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.","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."},"title":"Efficient reachability analysis of parametric linear hybrid systems with time-triggered transitions","article_processing_charge":"No","external_id":{"isi":["000661920400013"],"arxiv":["2006.12325"]},"author":[{"first_name":"Marcelo","last_name":"Forets","full_name":"Forets, Marcelo"},{"last_name":"Freire","full_name":"Freire, Daniel","first_name":"Daniel"},{"last_name":"Schilling","full_name":"Schilling, Christian","orcid":"0000-0003-3658-1065","id":"3A2F4DCE-F248-11E8-B48F-1D18A9856A87","first_name":"Christian"}],"article_number":"9314994","project":[{"call_identifier":"FWF","_id":"25F42A32-B435-11E9-9278-68D0E5697425","name":"The Wittgenstein Prize","grant_number":"Z211"},{"_id":"260C2330-B435-11E9-9278-68D0E5697425","call_identifier":"H2020","name":"ISTplus - Postdoctoral Fellowships","grant_number":"754411"}]},{"_id":"8287","status":"public","keyword":["reachability","hybrid systems","decomposition"],"type":"conference","tmp":{"legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","image":"/images/cc_by.png","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","short":"CC BY (4.0)"},"conference":{"end_date":"2020-09-25","location":"Virtual ","start_date":"2020-09-20","name":"EMSOFT: International Conference on Embedded Software"},"ddc":["000"],"date_updated":"2023-08-22T13:27:32Z","department":[{"_id":"ToHe"}],"file_date_updated":"2020-08-24T12:53:15Z","oa_version":"Preprint","abstract":[{"lang":"eng","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."}],"file":[{"creator":"cschilli","file_size":696384,"date_updated":"2020-08-24T12:53:15Z","file_name":"2020EMSOFT.pdf","date_created":"2020-08-24T12:53:15Z","relation":"main_file","access_level":"open_access","content_type":"application/pdf","success":1,"file_id":"8288","checksum":"d19e97d0f8a3a441dc078ec812297d75"}],"language":[{"iso":"eng"}],"publication_status":"published","related_material":{"record":[{"relation":"later_version","status":"public","id":"8790"}]},"ec_funded":1,"project":[{"name":"Rigorous Systems Engineering","grant_number":"S 11407_N23","_id":"25832EC2-B435-11E9-9278-68D0E5697425","call_identifier":"FWF"},{"grant_number":"Z00312","name":"The Wittgenstein Prize","_id":"25C5A090-B435-11E9-9278-68D0E5697425","call_identifier":"FWF"},{"call_identifier":"H2020","_id":"260C2330-B435-11E9-9278-68D0E5697425","grant_number":"754411","name":"ISTplus - Postdoctoral Fellowships"}],"user_id":"8b945eb4-e2f2-11eb-945a-df72226e66a9","citation":{"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.","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.","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.","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.","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.","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 ."},"title":"Reachability analysis of linear hybrid systems via block decomposition","author":[{"first_name":"Sergiy","full_name":"Bogomolov, Sergiy","last_name":"Bogomolov"},{"full_name":"Forets, Marcelo","last_name":"Forets","first_name":"Marcelo"},{"full_name":"Frehse, Goran","last_name":"Frehse","first_name":"Goran"},{"first_name":"Kostiantyn","last_name":"Potomkin","full_name":"Potomkin, Kostiantyn"},{"id":"3A2F4DCE-F248-11E8-B48F-1D18A9856A87","first_name":"Christian","last_name":"Schilling","full_name":"Schilling, Christian","orcid":"0000-0003-3658-1065"}],"article_processing_charge":"No","external_id":{"arxiv":["1905.02458"]},"quality_controlled":"1","oa":1,"publication":"Proceedings of the International Conference on Embedded Software","has_accepted_license":"1","year":"2020","date_published":"2020-01-01T00:00:00Z","date_created":"2020-08-24T12:56:20Z"},{"project":[{"grant_number":"S 11407_N23","name":"Rigorous Systems Engineering","_id":"25832EC2-B435-11E9-9278-68D0E5697425","call_identifier":"FWF"},{"grant_number":"Z211","name":"The Wittgenstein Prize","call_identifier":"FWF","_id":"25F42A32-B435-11E9-9278-68D0E5697425"},{"name":"ISTplus - Postdoctoral Fellowships","grant_number":"754411","_id":"260C2330-B435-11E9-9278-68D0E5697425","call_identifier":"H2020"}],"citation":{"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.","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.","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.","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","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","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.","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."},"user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","author":[{"id":"369D9A44-F248-11E8-B48F-1D18A9856A87","first_name":"Sergiy","orcid":"0000-0002-0686-0365","full_name":"Bogomolov, Sergiy","last_name":"Bogomolov"},{"first_name":"Marcelo","last_name":"Forets","full_name":"Forets, Marcelo"},{"first_name":"Goran","full_name":"Frehse, Goran","last_name":"Frehse"},{"last_name":"Potomkin","full_name":"Potomkin, Kostiantyn","first_name":"Kostiantyn"},{"orcid":"0000-0003-3658-1065","full_name":"Schilling, Christian","last_name":"Schilling","id":"3A2F4DCE-F248-11E8-B48F-1D18A9856A87","first_name":"Christian"}],"article_processing_charge":"No","external_id":{"isi":["000587712700072"],"arxiv":["1905.02458"]},"title":"Reachability analysis of linear hybrid systems via block decomposition","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","quality_controlled":"1","oa":1,"isi":1,"year":"2020","day":"01","publication":"IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems","page":"4018-4029","date_published":"2020-11-01T00:00:00Z","doi":"10.1109/TCAD.2020.3012859","date_created":"2020-11-22T23:01:25Z","_id":"8790","article_type":"original","type":"journal_article","status":"public","date_updated":"2023-08-22T13:27:33Z","department":[{"_id":"ToHe"}],"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"}],"oa_version":"Preprint","scopus_import":"1","main_file_link":[{"open_access":"1","url":"https://arxiv.org/abs/1905.02458"}],"month":"11","intvolume":" 39","publication_identifier":{"issn":["02780070"],"eissn":["19374151"]},"publication_status":"published","language":[{"iso":"eng"}],"volume":39,"issue":"11","related_material":{"record":[{"relation":"earlier_version","status":"public","id":"8287"}]},"ec_funded":1},{"quality_controlled":"1","publisher":"Association for the Advancement of Artificial Intelligence","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_created":"2021-02-25T09:05:18Z","doi":"10.1609/aaai.v34i02.5546","date_published":"2020-04-03T00:00:00Z","page":"1798-1805","publication":"Proceedings of the AAAI Conference on Artificial Intelligence","day":"03","year":"2020","project":[{"call_identifier":"FWF","_id":"25F2ACDE-B435-11E9-9278-68D0E5697425","grant_number":"S11402-N23","name":"Rigorous Systems Engineering"},{"call_identifier":"FWF","_id":"25F42A32-B435-11E9-9278-68D0E5697425","name":"The Wittgenstein Prize","grant_number":"Z211"},{"grant_number":"M02369","name":"Formal Methods meets Algorithmic Game Theory","_id":"264B3912-B435-11E9-9278-68D0E5697425","call_identifier":"FWF"}],"title":"All-pay bidding games on graphs","article_processing_charge":"No","external_id":{"arxiv":["1911.08360"]},"author":[{"last_name":"Avni","orcid":"0000-0001-5588-8287","full_name":"Avni, Guy","id":"463C8BC2-F248-11E8-B48F-1D18A9856A87","first_name":"Guy"},{"last_name":"Ibsen-Jensen","orcid":"0000-0003-4783-0389","full_name":"Ibsen-Jensen, Rasmus","id":"3B699956-F248-11E8-B48F-1D18A9856A87","first_name":"Rasmus"},{"last_name":"Tkadlec","orcid":"0000-0002-1097-9684","full_name":"Tkadlec, Josef","id":"3F24CCC8-F248-11E8-B48F-1D18A9856A87","first_name":"Josef"}],"user_id":"c635000d-4b10-11ee-a964-aac5a93f6ac1","citation":{"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","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","short":"G. Avni, R. Ibsen-Jensen, J. Tkadlec, Proceedings of the AAAI Conference on Artificial Intelligence 34 (2020) 1798–1805.","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.","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.","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.","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."},"intvolume":" 34","month":"04","scopus_import":"1","oa_version":"Preprint","abstract":[{"lang":"eng","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."}],"volume":34,"issue":"02","language":[{"iso":"eng"}],"publication_status":"published","publication_identifier":{"issn":["2159-5399"],"eissn":["2374-3468"],"isbn":["9781577358350"]},"status":"public","conference":{"start_date":"2020-02-07","location":"New York, NY, United States","end_date":"2020-02-12","name":"AAAI: Conference on Artificial Intelligence"},"article_type":"original","type":"journal_article","_id":"9197","department":[{"_id":"ToHe"},{"_id":"KrCh"}],"date_updated":"2023-09-05T12:40:00Z"},{"user_id":"c635000d-4b10-11ee-a964-aac5a93f6ac1","citation":{"ista":"Henzinger TA, Sarac NE. 2020. Monitorability under assumptions. Runtime Verification. RV: Runtime Verification, LNCS, vol. 12399, 3–18.","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","short":"T.A. Henzinger, N.E. Sarac, in:, Runtime Verification, Springer Nature, 2020, pp. 3–18.","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.","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."},"title":"Monitorability under assumptions","author":[{"orcid":"0000-0002-2985-7724","full_name":"Henzinger, Thomas A","last_name":"Henzinger","id":"40876CD8-F248-11E8-B48F-1D18A9856A87","first_name":"Thomas A"},{"full_name":"Sarac, Naci E","last_name":"Sarac","first_name":"Naci E","id":"8C6B42F8-C8E6-11E9-A03A-F2DCE5697425"}],"article_processing_charge":"No","external_id":{"isi":["000728160600001"]},"project":[{"grant_number":"Z211","name":"The Wittgenstein Prize","call_identifier":"FWF","_id":"25F42A32-B435-11E9-9278-68D0E5697425"}],"day":"02","publication":"Runtime Verification","isi":1,"has_accepted_license":"1","year":"2020","doi":"10.1007/978-3-030-60508-7_1","date_published":"2020-10-02T00:00:00Z","date_created":"2020-10-07T15:05:37Z","page":"3-18","acknowledgement":"This research was supported in part by the Austrian Science Fund (FWF) under grant Z211-N23 (Wittgenstein Award).","quality_controlled":"1","publisher":"Springer Nature","oa":1,"ddc":["000"],"date_updated":"2023-09-05T15:08:26Z","file_date_updated":"2020-10-15T14:28:06Z","department":[{"_id":"ToHe"}],"_id":"8623","status":"public","type":"conference","conference":{"name":"RV: Runtime Verification","start_date":"2020-10-06","end_date":"2020-10-09","location":"Los Angeles, CA, United States"},"file":[{"date_created":"2020-10-15T14:28:06Z","file_name":"monitorability.pdf","creator":"esarac","date_updated":"2020-10-15T14:28:06Z","file_size":478148,"checksum":"00661f9b7034f52e18bf24fa552b8194","file_id":"8665","success":1,"access_level":"open_access","relation":"main_file","content_type":"application/pdf"}],"language":[{"iso":"eng"}],"publication_identifier":{"eissn":["1611-3349"],"isbn":["9783030605070","9783030605087"],"issn":["0302-9743"]},"publication_status":"published","volume":12399,"oa_version":"Submitted Version","abstract":[{"lang":"eng","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."}],"month":"10","intvolume":" 12399","alternative_title":["LNCS"],"scopus_import":"1"},{"publication":"Computer Aided Verification","day":"14","year":"2020","isi":1,"has_accepted_license":"1","date_created":"2020-08-03T11:45:35Z","doi":"10.1007/978-3-030-53288-8_14","date_published":"2020-07-14T00:00:00Z","page":"275-298","acknowledgement":"Bernhard Kragl and Thomas A. Henzinger were supported by\r\nthe Austrian Science Fund (FWF) under grant Z211-N23 (Wittgenstein Award).","oa":1,"publisher":"Springer Nature","quality_controlled":"1","user_id":"c635000d-4b10-11ee-a964-aac5a93f6ac1","citation":{"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","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","ieee":"B. Kragl, S. Qadeer, and T. A. Henzinger, “Refinement for structured concurrent programs,” in Computer Aided Verification, 2020, vol. 12224, pp. 275–298.","short":"B. Kragl, S. Qadeer, T.A. Henzinger, in:, Computer Aided Verification, Springer Nature, 2020, 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.","ista":"Kragl B, Qadeer S, Henzinger TA. 2020. Refinement for structured concurrent programs. Computer Aided Verification. , LNCS, vol. 12224, 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."},"title":"Refinement for structured concurrent programs","article_processing_charge":"No","external_id":{"isi":["000695276000014"]},"author":[{"first_name":"Bernhard","id":"320FC952-F248-11E8-B48F-1D18A9856A87","last_name":"Kragl","orcid":"0000-0001-7745-9117","full_name":"Kragl, Bernhard"},{"full_name":"Qadeer, Shaz","last_name":"Qadeer","first_name":"Shaz"},{"first_name":"Thomas A","id":"40876CD8-F248-11E8-B48F-1D18A9856A87","last_name":"Henzinger","full_name":"Henzinger, Thomas A","orcid":"0000-0002-2985-7724"}],"project":[{"_id":"25F42A32-B435-11E9-9278-68D0E5697425","call_identifier":"FWF","grant_number":"Z211","name":"The Wittgenstein Prize"}],"language":[{"iso":"eng"}],"file":[{"file_name":"2020_LNCS_Kragl.pdf","date_created":"2020-08-06T08:14:54Z","creator":"dernst","file_size":804237,"date_updated":"2020-08-06T08:14:54Z","success":1,"file_id":"8201","relation":"main_file","access_level":"open_access","content_type":"application/pdf"}],"publication_status":"published","publication_identifier":{"issn":["0302-9743"],"isbn":["9783030532871"],"eissn":["1611-3349"],"eisbn":["9783030532888"]},"related_material":{"record":[{"relation":"dissertation_contains","status":"public","id":"8332"}]},"volume":12224,"oa_version":"Published Version","abstract":[{"lang":"eng","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."}],"intvolume":" 12224","month":"07","scopus_import":"1","alternative_title":["LNCS"],"ddc":["000"],"date_updated":"2023-09-07T13:18:00Z","file_date_updated":"2020-08-06T08:14:54Z","department":[{"_id":"ToHe"}],"_id":"8195","status":"public","tmp":{"legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","image":"/images/cc_by.png","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","short":"CC BY (4.0)"},"type":"conference"},{"month":"06","scopus_import":"1","main_file_link":[{"url":"https://doi.org/10.1145/3385412.3385980","open_access":"1"}],"oa_version":"Published Version","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"}],"related_material":{"record":[{"relation":"dissertation_contains","status":"public","id":"8332"}]},"language":[{"iso":"eng"}],"publication_identifier":{"isbn":["9781450376136"]},"publication_status":"published","status":"public","type":"conference","conference":{"end_date":"2020-06-20","location":"London, United Kingdom","start_date":"2020-06-15","name":"PLDI: Programming Language Design and Implementation"},"_id":"8012","department":[{"_id":"ToHe"}],"date_updated":"2023-09-07T13:18:00Z","publisher":"Association for Computing Machinery","quality_controlled":"1","oa":1,"doi":"10.1145/3385412.3385980","date_published":"2020-06-01T00:00:00Z","date_created":"2020-06-25T11:40:16Z","page":"227-242","day":"01","publication":"Proceedings of the 41st ACM SIGPLAN Conference on Programming Language Design and Implementation","isi":1,"year":"2020","project":[{"call_identifier":"FWF","_id":"25F42A32-B435-11E9-9278-68D0E5697425","name":"The Wittgenstein Prize","grant_number":"Z211"}],"title":"Inductive sequentialization of asynchronous programs","author":[{"orcid":"0000-0001-7745-9117","full_name":"Kragl, Bernhard","last_name":"Kragl","id":"320FC952-F248-11E8-B48F-1D18A9856A87","first_name":"Bernhard"},{"full_name":"Enea, Constantin","last_name":"Enea","first_name":"Constantin"},{"first_name":"Thomas A","id":"40876CD8-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0002-2985-7724","full_name":"Henzinger, Thomas A","last_name":"Henzinger"},{"last_name":"Mutluergil","full_name":"Mutluergil, Suha Orhun","first_name":"Suha Orhun"},{"first_name":"Shaz","full_name":"Qadeer, Shaz","last_name":"Qadeer"}],"article_processing_charge":"No","external_id":{"isi":["000614622300016"]},"user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","citation":{"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.","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.","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","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.","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.","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."}},{"language":[{"iso":"eng"}],"publication_identifier":{"eissn":["1433-2787"],"issn":["1433-2779"]},"publication_status":"published","issue":"6","volume":22,"related_material":{"record":[{"id":"299","status":"public","relation":"earlier_version"}]},"oa_version":"None","abstract":[{"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.","lang":"eng"}],"month":"08","intvolume":" 22","scopus_import":"1","date_updated":"2023-09-08T11:52:02Z","department":[{"_id":"ToHe"}],"_id":"10861","status":"public","keyword":["Information Systems","Software"],"article_type":"original","type":"journal_article","day":"03","publication":"International Journal on Software Tools for Technology Transfer","isi":1,"year":"2020","date_published":"2020-08-03T00:00:00Z","doi":"10.1007/s10009-020-00582-z","date_created":"2022-03-18T10:10:53Z","page":"741-758","quality_controlled":"1","publisher":"Springer Nature","user_id":"c635000d-4b10-11ee-a964-aac5a93f6ac1","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","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","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.","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.","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.","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."},"title":"AMT 2.0: Qualitative and quantitative trace analysis with extended signal temporal logic","author":[{"full_name":"Nickovic, Dejan","last_name":"Nickovic","id":"41BCEE5C-F248-11E8-B48F-1D18A9856A87","first_name":"Dejan"},{"first_name":"Olivier","last_name":"Lebeltel","full_name":"Lebeltel, Olivier"},{"first_name":"Oded","full_name":"Maler, Oded","last_name":"Maler"},{"last_name":"Ferrere","full_name":"Ferrere, Thomas","orcid":"0000-0001-5199-3143","first_name":"Thomas","id":"40960E6E-F248-11E8-B48F-1D18A9856A87"},{"last_name":"Ulus","full_name":"Ulus, Dogan","first_name":"Dogan"}],"external_id":{"isi":["000555398600001"]},"article_processing_charge":"No"},{"oa_version":"Published Version","abstract":[{"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.","lang":"eng"}],"month":"09","alternative_title":["ISTA Thesis"],"file":[{"content_type":"application/pdf","relation":"main_file","access_level":"open_access","file_id":"8333","checksum":"26fe261550f691280bda4c454bf015c7","file_size":1348815,"date_updated":"2020-09-04T12:17:47Z","creator":"bkragl","file_name":"kragl-thesis.pdf","date_created":"2020-09-04T12:17:47Z"},{"checksum":"b9694ce092b7c55557122adba8337ebc","file_id":"8335","access_level":"closed","relation":"source_file","content_type":"application/zip","date_created":"2020-09-04T13:00:17Z","file_name":"kragl-thesis.zip","creator":"bkragl","date_updated":"2020-09-04T13:00:17Z","file_size":372312}],"language":[{"iso":"eng"}],"publication_identifier":{"issn":["2663-337X"]},"degree_awarded":"PhD","publication_status":"published","related_material":{"record":[{"status":"public","id":"133","relation":"part_of_dissertation"},{"status":"public","id":"8012","relation":"part_of_dissertation"},{"id":"8195","status":"public","relation":"part_of_dissertation"},{"relation":"part_of_dissertation","status":"public","id":"160"}]},"_id":"8332","status":"public","type":"dissertation","ddc":["000"],"supervisor":[{"last_name":"Henzinger","full_name":"Henzinger, Thomas A","orcid":"0000-0002-2985-7724","id":"40876CD8-F248-11E8-B48F-1D18A9856A87","first_name":"Thomas A"}],"date_updated":"2023-09-13T08:45:08Z","file_date_updated":"2020-09-04T13:00:17Z","department":[{"_id":"ToHe"}],"publisher":"Institute of Science and Technology Austria","oa":1,"day":"03","has_accepted_license":"1","year":"2020","date_published":"2020-09-03T00:00:00Z","doi":"10.15479/AT:ISTA:8332","date_created":"2020-09-04T12:24:12Z","page":"120","user_id":"c635000d-4b10-11ee-a964-aac5a93f6ac1","citation":{"chicago":"Kragl, Bernhard. “Verifying Concurrent Programs: Refinement, Synchronization, Sequentialization.” Institute of Science and Technology Austria, 2020. https://doi.org/10.15479/AT:ISTA:8332.","ista":"Kragl B. 2020. Verifying concurrent programs: Refinement, synchronization, sequentialization. Institute of Science and Technology Austria.","mla":"Kragl, Bernhard. Verifying Concurrent Programs: Refinement, Synchronization, Sequentialization. Institute of Science and Technology Austria, 2020, doi:10.15479/AT:ISTA:8332.","apa":"Kragl, B. (2020). Verifying concurrent programs: Refinement, synchronization, sequentialization. Institute of Science and Technology Austria. https://doi.org/10.15479/AT:ISTA:8332","ama":"Kragl B. Verifying concurrent programs: Refinement, synchronization, sequentialization. 2020. doi:10.15479/AT:ISTA:8332","short":"B. Kragl, Verifying Concurrent Programs: Refinement, Synchronization, Sequentialization, Institute of Science and Technology Austria, 2020.","ieee":"B. Kragl, “Verifying concurrent programs: Refinement, synchronization, sequentialization,” Institute of Science and Technology Austria, 2020."},"title":"Verifying concurrent programs: Refinement, synchronization, sequentialization","author":[{"orcid":"0000-0001-7745-9117","full_name":"Kragl, Bernhard","last_name":"Kragl","first_name":"Bernhard","id":"320FC952-F248-11E8-B48F-1D18A9856A87"}],"article_processing_charge":"No"},{"oa_version":"Submitted Version","abstract":[{"lang":"eng","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."}],"month":"12","language":[{"iso":"eng"}],"file":[{"content_type":"application/pdf","access_level":"open_access","relation":"main_file","checksum":"8f97f229316c3b3a6f0cf99297aa0941","file_id":"9203","date_updated":"2021-02-26T16:38:14Z","file_size":1125794,"creator":"mgarcias","date_created":"2021-02-26T16:38:14Z","file_name":"main.pdf"}],"publication_status":"published","publication_identifier":{"eisbn":["9781728183244"],"eissn":["2576-3172"]},"_id":"9202","status":"public","conference":{"location":"Houston, TX, USA ","end_date":"2020-12-04","start_date":"2020-12-01","name":"RTTS: Real-Time Systems Symposium"},"type":"conference","ddc":["000"],"date_updated":"2024-02-22T13:25:19Z","department":[{"_id":"ToHe"}],"file_date_updated":"2021-02-26T16:38:14Z","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.","oa":1,"quality_controlled":"1","publisher":"IEEE","publication":"2020 IEEE Real-Time Systems Symposium","day":"01","year":"2020","isi":1,"has_accepted_license":"1","date_created":"2021-02-26T16:38:24Z","date_published":"2020-12-01T00:00:00Z","doi":"10.1109/RTSS49844.2020.00031","page":"244-256","project":[{"_id":"25F42A32-B435-11E9-9278-68D0E5697425","call_identifier":"FWF","grant_number":"Z211","name":"The Wittgenstein Prize"}],"user_id":"3E5EF7F0-F248-11E8-B48F-1D18A9856A87","citation":{"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.","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.","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.","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","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","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."},"title":"Hybridization for stability verification of nonlinear switched systems","article_processing_charge":"No","external_id":{"isi":["000680435100021"]},"author":[{"last_name":"Garcia Soto","orcid":"0000-0003-2936-5719","full_name":"Garcia Soto, Miriam","id":"4B3207F6-F248-11E8-B48F-1D18A9856A87","first_name":"Miriam"},{"first_name":"Pavithra","last_name":"Prabhakar","full_name":"Prabhakar, Pavithra"}]},{"volume":36,"issue":"5","language":[{"iso":"eng"}],"file":[{"date_created":"2020-10-21T13:16:45Z","file_name":"2020_NAHS_GarciaSoto.pdf","creator":"dernst","date_updated":"2022-05-16T22:30:04Z","file_size":818774,"checksum":"560abfddb53f9fe921b6744f59f2cfaa","file_id":"8688","embargo":"2022-05-15","access_level":"open_access","relation":"main_file","content_type":"application/pdf"}],"publication_status":"published","publication_identifier":{"issn":["1751-570X"]},"intvolume":" 36","month":"05","scopus_import":"1","oa_version":"Submitted Version","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"}],"department":[{"_id":"ToHe"}],"file_date_updated":"2022-05-16T22:30:04Z","ddc":["000"],"date_updated":"2023-08-17T14:32:54Z","status":"public","tmp":{"short":"CC BY-NC-ND (4.0)","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","image":"/images/cc_by_nc_nd.png"},"type":"journal_article","article_type":"original","_id":"7426","date_created":"2020-02-02T23:00:59Z","doi":"10.1016/j.nahs.2020.100856","date_published":"2020-05-01T00:00:00Z","publication":"Nonlinear Analysis: Hybrid Systems","day":"01","year":"2020","has_accepted_license":"1","isi":1,"oa":1,"quality_controlled":"1","publisher":"Elsevier","title":"Abstraction based verification of stability of polyhedral switched systems","article_processing_charge":"No","external_id":{"isi":["000528828600003"]},"author":[{"last_name":"Garcia Soto","orcid":"0000−0003−2936−5719","full_name":"Garcia Soto, Miriam","first_name":"Miriam","id":"4B3207F6-F248-11E8-B48F-1D18A9856A87"},{"full_name":"Prabhakar, Pavithra","last_name":"Prabhakar","first_name":"Pavithra"}],"user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","citation":{"ista":"Garcia Soto M, Prabhakar P. 2020. Abstraction based verification of stability of polyhedral switched systems. Nonlinear Analysis: Hybrid Systems. 36(5), 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","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","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.","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."},"project":[{"call_identifier":"FWF","_id":"25863FF4-B435-11E9-9278-68D0E5697425","name":"Game Theory","grant_number":"S11407"},{"_id":"25F42A32-B435-11E9-9278-68D0E5697425","call_identifier":"FWF","name":"The Wittgenstein Prize","grant_number":"Z211"}],"article_number":"100856"},{"publisher":"EasyChair","quality_controlled":"1","oa":1,"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).","doi":"10.29007/rjwn","date_published":"2019-05-25T00:00:00Z","date_created":"2022-03-18T12:29:23Z","page":"1-13","day":"25","publication":"ARCH19. 6th International Workshop on Applied Verification of Continuous and Hybrid Systems","has_accepted_license":"1","year":"2019","title":"ARCH-COMP19 Category Report: Hybrid systems with piecewise constant dynamics","editor":[{"last_name":"Frehse","full_name":"Frehse, Goran","first_name":"Goran"},{"first_name":"Matthias","last_name":"Althoff","full_name":"Althoff, Matthias"}],"author":[{"full_name":"Frehse, Goran","last_name":"Frehse","first_name":"Goran"},{"first_name":"Alessandro","full_name":"Abate, Alessandro","last_name":"Abate"},{"full_name":"Adzkiya, Dieky","last_name":"Adzkiya","first_name":"Dieky"},{"first_name":"Anna","full_name":"Becchi, Anna","last_name":"Becchi"},{"last_name":"Bu","full_name":"Bu, Lei","first_name":"Lei"},{"last_name":"Cimatti","full_name":"Cimatti, Alessandro","first_name":"Alessandro"},{"first_name":"Mirco","id":"3444EA5E-F248-11E8-B48F-1D18A9856A87","last_name":"Giacobbe","full_name":"Giacobbe, Mirco","orcid":"0000-0001-8180-0904"},{"first_name":"Alberto","full_name":"Griggio, Alberto","last_name":"Griggio"},{"first_name":"Sergio","full_name":"Mover, Sergio","last_name":"Mover"},{"full_name":"Mufid, Muhammad Syifa'ul","last_name":"Mufid","first_name":"Muhammad Syifa'ul"},{"full_name":"Riouak, Idriss","last_name":"Riouak","first_name":"Idriss"},{"last_name":"Tonetta","full_name":"Tonetta, Stefano","first_name":"Stefano"},{"first_name":"Enea","last_name":"Zaffanella","full_name":"Zaffanella, Enea"}],"article_processing_charge":"No","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","citation":{"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.","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.","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.","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","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.","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."},"month":"05","intvolume":" 61","alternative_title":["EPiC Series in Computing"],"scopus_import":"1","oa_version":"Published Version","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."}],"volume":61,"file":[{"date_created":"2022-05-17T06:55:49Z","file_name":"2019_EPiCs_Frehse.pdf","date_updated":"2022-05-17T06:55:49Z","file_size":346415,"creator":"dernst","file_id":"11391","checksum":"4b92e333db7b4e2349501a804dfede69","success":1,"content_type":"application/pdf","access_level":"open_access","relation":"main_file"}],"language":[{"iso":"eng"}],"publication_identifier":{"issn":["2398-7340"]},"publication_status":"published","status":"public","type":"conference","conference":{"start_date":"2019-04-15","end_date":"2019-04-15","location":"Montreal, Canada","name":"ARCH: International Workshop on Applied Verification on Continuous and Hybrid Systems"},"_id":"10877","file_date_updated":"2022-05-17T06:55:49Z","department":[{"_id":"ToHe"}],"ddc":["000"],"date_updated":"2022-05-17T07:09:47Z"},{"oa":1,"quality_controlled":"1","publisher":"IEEE","publication":"5th Indian Control Conference Proceedings","day":"16","year":"2019","has_accepted_license":"1","date_created":"2019-06-17T06:57:33Z","date_published":"2019-05-16T00:00:00Z","doi":"10.1109/INDIANCC.2019.8715598","article_number":"8715598","project":[{"name":"Rigorous Systems Engineering","grant_number":"S 11407_N23","call_identifier":"FWF","_id":"25832EC2-B435-11E9-9278-68D0E5697425"},{"name":"The Wittgenstein Prize","grant_number":"Z211","_id":"25F42A32-B435-11E9-9278-68D0E5697425","call_identifier":"FWF"}],"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","citation":{"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.","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.","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.","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","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","short":"A. Kundu, M. Garcia Soto, P. Prabhakar, in:, 5th Indian Control Conference Proceedings, IEEE, 2019.","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."},"title":"Formal synthesis of stabilizing controllers for periodically controlled linear switched systems","article_processing_charge":"No","author":[{"last_name":"Kundu","full_name":"Kundu, Atreyee","first_name":"Atreyee"},{"id":"4B3207F6-F248-11E8-B48F-1D18A9856A87","first_name":"Miriam","orcid":"0000−0003−2936−5719","full_name":"Garcia Soto, Miriam","last_name":"Garcia Soto"},{"first_name":"Pavithra","last_name":"Prabhakar","full_name":"Prabhakar, Pavithra"}],"oa_version":"Submitted Version","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"}],"month":"05","scopus_import":"1","language":[{"iso":"eng"}],"file":[{"success":1,"checksum":"d622a91af1e427f6b1e0ba8e18a2b767","file_id":"8687","relation":"main_file","access_level":"open_access","content_type":"application/pdf","file_name":"2019_ICC_Kundu.pdf","date_created":"2020-10-21T13:13:49Z","creator":"dernst","file_size":396031,"date_updated":"2020-10-21T13:13:49Z"}],"publication_status":"published","publication_identifier":{"isbn":["978-153866246-5"]},"_id":"6565","status":"public","conference":{"location":"Delhi, India","end_date":"2019-01-11","start_date":"2019-01-09","name":"ICC 2019 - Indian Control Conference"},"type":"conference","ddc":["000"],"date_updated":"2021-01-12T08:08:01Z","file_date_updated":"2020-10-21T13:13:49Z","department":[{"_id":"ToHe"}]},{"author":[{"id":"463C8BC2-F248-11E8-B48F-1D18A9856A87","first_name":"Guy","last_name":"Avni","orcid":"0000-0001-5588-8287","full_name":"Avni, Guy"},{"first_name":"Thomas A","id":"40876CD8-F248-11E8-B48F-1D18A9856A87","last_name":"Henzinger","full_name":"Henzinger, Thomas A","orcid":"0000−0002−2985−7724"},{"id":"3B699956-F248-11E8-B48F-1D18A9856A87","first_name":"Rasmus","full_name":"Ibsen-Jensen, Rasmus","orcid":"0000-0003-4783-0389","last_name":"Ibsen-Jensen"},{"first_name":"Petr","last_name":"Novotny","full_name":"Novotny, Petr"}],"title":"Bidding games on Markov decision processes","citation":{"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.","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.","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.","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","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.","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."},"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","project":[{"name":"Formal Methods meets Algorithmic Game Theory","grant_number":"M02369","call_identifier":"FWF","_id":"264B3912-B435-11E9-9278-68D0E5697425"},{"grant_number":"S11402-N23","name":"Rigorous Systems Engineering","_id":"25F2ACDE-B435-11E9-9278-68D0E5697425","call_identifier":"FWF"},{"call_identifier":"FWF","_id":"25F42A32-B435-11E9-9278-68D0E5697425","grant_number":"Z211","name":"The Wittgenstein Prize"}],"page":"1-12","doi":"10.1007/978-3-030-30806-3_1","date_published":"2019-09-06T00:00:00Z","date_created":"2019-08-19T07:58:10Z","has_accepted_license":"1","year":"2019","day":"06","publication":" Proceedings of the 13th International Conference of Reachability Problems","publisher":"Springer","quality_controlled":"1","oa":1,"file_date_updated":"2020-07-14T12:47:41Z","department":[{"_id":"ToHe"}],"date_updated":"2021-01-12T08:09:12Z","ddc":["000"],"type":"conference","conference":{"name":"RP: Reachability Problems","end_date":"2019-09-13","location":"Brussels, Belgium","start_date":"2019-09-11"},"status":"public","_id":"6822","volume":11674,"publication_identifier":{"issn":["0302-9743"],"isbn":["978-303030805-6"]},"publication_status":"published","file":[{"access_level":"open_access","relation":"main_file","content_type":"application/pdf","file_id":"6823","checksum":"45ebbc709af2b247d28c7c293c01504b","creator":"gavni","date_updated":"2020-07-14T12:47:41Z","file_size":436635,"date_created":"2019-08-19T07:56:40Z","file_name":"prob.pdf"}],"language":[{"iso":"eng"}],"alternative_title":["LNCS"],"scopus_import":1,"month":"09","intvolume":" 11674","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 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."}],"oa_version":"Submitted Version"},{"date_updated":"2021-01-12T08:09:28Z","ddc":["000"],"department":[{"_id":"ToHe"}],"file_date_updated":"2020-10-08T17:30:38Z","_id":"6888","conference":{"location":"Montreal, QC, Canada","end_date":"2019-05-24","start_date":"2019-05-20","name":"ICRA: International Conference on Robotics and Automation"},"type":"conference","status":"public","publication_status":"published","publication_identifier":{"isbn":["9781538660270"]},"language":[{"iso":"eng"}],"file":[{"content_type":"application/pdf","relation":"main_file","access_level":"open_access","success":1,"checksum":"f5545a6b60c3ffd01feb3613f81d03b6","file_id":"8636","file_size":3265107,"date_updated":"2020-10-08T17:30:38Z","creator":"dernst","file_name":"2019_ICRA_Lechner.pdf","date_created":"2020-10-08T17:30:38Z"}],"volume":"2019-May","abstract":[{"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.","lang":"eng"}],"oa_version":"Submitted Version","scopus_import":"1","alternative_title":["ICRA"],"month":"05","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","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","short":"M. Lechner, R. Hasani, M. Zimmer, T.A. Henzinger, R. Grosu, in:, Proceedings - IEEE International Conference on Robotics and Automation, IEEE, 2019.","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.","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.","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.","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."},"user_id":"D865714E-FA4E-11E9-B85B-F5C5E5697425","article_processing_charge":"No","author":[{"id":"3DC22916-F248-11E8-B48F-1D18A9856A87","first_name":"Mathias","full_name":"Lechner, Mathias","last_name":"Lechner"},{"full_name":"Hasani, Ramin","last_name":"Hasani","first_name":"Ramin"},{"first_name":"Manuel","last_name":"Zimmer","full_name":"Zimmer, Manuel"},{"id":"40876CD8-F248-11E8-B48F-1D18A9856A87","first_name":"Thomas A","last_name":"Henzinger","full_name":"Henzinger, Thomas A","orcid":"0000−0002−2985−7724"},{"first_name":"Radu","last_name":"Grosu","full_name":"Grosu, Radu"}],"title":"Designing worm-inspired neural networks for interpretable robotic control","article_number":"8793840","project":[{"grant_number":"Z211","name":"The Wittgenstein Prize","_id":"25F42A32-B435-11E9-9278-68D0E5697425","call_identifier":"FWF"}],"year":"2019","has_accepted_license":"1","publication":"Proceedings - IEEE International Conference on Robotics and Automation","day":"01","date_created":"2019-09-18T08:09:51Z","doi":"10.1109/icra.2019.8793840","date_published":"2019-05-01T00:00:00Z","oa":1,"quality_controlled":"1","publisher":"IEEE"},{"user_id":"8b945eb4-e2f2-11eb-945a-df72226e66a9","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.","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.","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.","short":"M. Aghajohari, G. Avni, T.A. Henzinger, in:, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2019.","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","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"},"title":"Determinacy in discrete-bidding infinite-duration games","author":[{"last_name":"Aghajohari","full_name":"Aghajohari, Milad","first_name":"Milad"},{"last_name":"Avni","orcid":"0000-0001-5588-8287","full_name":"Avni, Guy","first_name":"Guy","id":"463C8BC2-F248-11E8-B48F-1D18A9856A87"},{"first_name":"Thomas A","id":"40876CD8-F248-11E8-B48F-1D18A9856A87","orcid":"0000−0002−2985−7724","full_name":"Henzinger, Thomas A","last_name":"Henzinger"}],"external_id":{"arxiv":["1905.03588"]},"article_processing_charge":"No","article_number":"20","project":[{"grant_number":"S11402-N23","name":"Rigorous Systems Engineering","call_identifier":"FWF","_id":"25F2ACDE-B435-11E9-9278-68D0E5697425"},{"_id":"264B3912-B435-11E9-9278-68D0E5697425","call_identifier":"FWF","name":"Formal Methods meets Algorithmic Game Theory","grant_number":"M02369"}],"day":"01","has_accepted_license":"1","year":"2019","date_published":"2019-08-01T00:00:00Z","doi":"10.4230/LIPICS.CONCUR.2019.20","date_created":"2019-09-18T08:06:58Z","quality_controlled":"1","publisher":"Schloss Dagstuhl - Leibniz-Zentrum für Informatik","oa":1,"ddc":["000"],"date_updated":"2022-01-26T08:27:10Z","department":[{"_id":"ToHe"}],"file_date_updated":"2020-07-14T12:47:43Z","_id":"6886","status":"public","type":"conference","conference":{"start_date":"2019-08-27","end_date":"2019-08-30","location":"Amsterdam, Netherlands","name":"CONCUR: International Conference on Concurrency Theory"},"tmp":{"short":"CC BY (3.0)","image":"/images/cc_by.png","legal_code_url":"https://creativecommons.org/licenses/by/3.0/legalcode","name":"Creative Commons Attribution 3.0 Unported (CC BY 3.0)"},"file":[{"file_id":"6915","checksum":"4df6d3575c506edb17215adada03cc8e","content_type":"application/pdf","relation":"main_file","access_level":"open_access","file_name":"2019_LIPIcs_Aghajohari.pdf","date_created":"2019-09-27T12:21:38Z","file_size":741425,"date_updated":"2020-07-14T12:47:43Z","creator":"kschuh"}],"language":[{"iso":"eng"}],"publication_status":"published","volume":140,"oa_version":"Published Version","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. "}],"month":"08","intvolume":" 140","scopus_import":"1","alternative_title":["LIPIcs"]},{"publisher":"Schloss Dagstuhl - Leibniz-Zentrum für Informatik","quality_controlled":"1","oa":1,"has_accepted_license":"1","year":"2019","day":"01","doi":"10.4230/LIPICS.CONCUR.2019.27","date_published":"2019-08-01T00:00:00Z","date_created":"2019-09-18T08:06:14Z","article_number":"27","project":[{"name":"Game Theory","grant_number":"S11407","call_identifier":"FWF","_id":"25863FF4-B435-11E9-9278-68D0E5697425"},{"call_identifier":"FWF","_id":"25F2ACDE-B435-11E9-9278-68D0E5697425","name":"Rigorous Systems Engineering","grant_number":"S11402-N23"}],"citation":{"short":"K. Chatterjee, T.A. Henzinger, J. Otop, in:, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2019.","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.","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","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","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.","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.","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."},"user_id":"3E5EF7F0-F248-11E8-B48F-1D18A9856A87","author":[{"orcid":"0000-0002-4561-241X","full_name":"Chatterjee, Krishnendu","last_name":"Chatterjee","first_name":"Krishnendu","id":"2E5DCA20-F248-11E8-B48F-1D18A9856A87"},{"first_name":"Thomas A","id":"40876CD8-F248-11E8-B48F-1D18A9856A87","last_name":"Henzinger","full_name":"Henzinger, Thomas A","orcid":"0000−0002−2985−7724"},{"first_name":"Jan","full_name":"Otop, Jan","last_name":"Otop"}],"title":"Long-run average behavior of vector addition systems with states","abstract":[{"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. ","lang":"eng"}],"oa_version":"Published Version","alternative_title":["LIPIcs"],"scopus_import":1,"month":"08","intvolume":" 140","publication_status":"published","file":[{"content_type":"application/pdf","relation":"main_file","access_level":"open_access","checksum":"4985e26e1572d1575d64d38acabd71d6","file_id":"6914","file_size":538120,"date_updated":"2020-07-14T12:47:43Z","creator":"kschuh","file_name":"2019_LIPIcs_Chatterjee.pdf","date_created":"2019-09-27T12:09:35Z"}],"language":[{"iso":"eng"}],"volume":140,"_id":"6885","type":"conference","conference":{"name":"CONCUR: International Conference on Concurrency Theory","end_date":"2019-08-30","location":"Amsterdam, Netherlands","start_date":"2019-08-27"},"tmp":{"legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","image":"/images/cc_by.png","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","short":"CC BY (4.0)"},"status":"public","date_updated":"2021-01-12T08:09:27Z","ddc":["000"],"department":[{"_id":"ToHe"},{"_id":"KrCh"}],"file_date_updated":"2020-07-14T12:47:43Z"},{"language":[{"iso":"eng"}],"publication":"Proceedings of the International Joint Conference on Neural Networks","day":"30","year":"2019","publication_status":"published","publication_identifier":{"isbn":["9781728119854"]},"date_created":"2019-11-04T15:59:58Z","date_published":"2019-09-30T00:00:00Z","doi":"10.1109/ijcnn.2019.8851954","oa_version":"Preprint","abstract":[{"lang":"eng","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."}],"month":"09","oa":1,"main_file_link":[{"open_access":"1","url":"https://arxiv.org/abs/1809.03864"}],"publisher":"IEEE","quality_controlled":"1","scopus_import":1,"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","date_updated":"2021-01-12T08:11:19Z","citation":{"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.","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.","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.","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.","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","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","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."},"title":"Response characterization for auditing cell dynamics in long short-term memory networks","department":[{"_id":"ToHe"}],"external_id":{"arxiv":["1809.03864"]},"author":[{"first_name":"Ramin","last_name":"Hasani","full_name":"Hasani, Ramin"},{"first_name":"Alexander","last_name":"Amini","full_name":"Amini, Alexander"},{"full_name":"Lechner, Mathias","last_name":"Lechner","id":"3DC22916-F248-11E8-B48F-1D18A9856A87","first_name":"Mathias"},{"first_name":"Felix","last_name":"Naser","full_name":"Naser, Felix"},{"full_name":"Grosu, Radu","last_name":"Grosu","first_name":"Radu"},{"last_name":"Rus","full_name":"Rus, Daniela","first_name":"Daniela"}],"article_number":"8851954","_id":"6985","status":"public","conference":{"name":"IJCNN: International Joint Conference on Neural Networks","location":"Budapest, Hungary","end_date":"2019-07-19","start_date":"2019-07-14"},"type":"conference"},{"series_title":"LNCS","_id":"7453","type":"book_chapter","status":"public","date_updated":"2022-09-06T08:25:52Z","department":[{"_id":"ToHe"}],"abstract":[{"lang":"eng","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."}],"oa_version":"Published Version","main_file_link":[{"url":"https://doi.org/10.1007/978-3-319-91908-9_22","open_access":"1"}],"scopus_import":"1","alternative_title":["Lecture Notes in Computer Science"],"intvolume":" 10000","month":"10","publication_status":"published","publication_identifier":{"eisbn":["9783319919089"],"eissn":["0302-9743"],"isbn":["9783319919072"],"issn":["1611-3349"]},"language":[{"iso":"eng"}],"volume":10000,"project":[{"call_identifier":"FWF","_id":"25F2ACDE-B435-11E9-9278-68D0E5697425","name":"Rigorous Systems Engineering","grant_number":"S11402-N23"},{"_id":"25F42A32-B435-11E9-9278-68D0E5697425","call_identifier":"FWF","grant_number":"Z211","name":"The Wittgenstein Prize"}],"citation":{"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.","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","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.","short":"R. Alur, M. Giacobbe, T.A. Henzinger, K.G. Larsen, M. Mikučionis, in:, B. Steffen, G. 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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.","oa":1,"publisher":"Springer Nature","quality_controlled":"1","year":"2019","publication":"Computing and Software Science","day":"05","page":"452-477","date_created":"2020-02-05T10:51:44Z","date_published":"2019-10-05T00:00:00Z","doi":"10.1007/978-3-319-91908-9_22"},{"citation":{"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.","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). 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EasyChair Publications, 2019. https://doi.org/10.29007/m75b.","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."},"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","article_processing_charge":"No","author":[{"first_name":"Fabian","last_name":"Immler","full_name":"Immler, Fabian"},{"first_name":"Matthias","full_name":"Althoff, Matthias","last_name":"Althoff"},{"full_name":"Benet, Luis","last_name":"Benet","first_name":"Luis"},{"first_name":"Alexandre","full_name":"Chapoutot, Alexandre","last_name":"Chapoutot"},{"full_name":"Chen, Xin","last_name":"Chen","first_name":"Xin"},{"full_name":"Forets, Marcelo","last_name":"Forets","first_name":"Marcelo"},{"last_name":"Geretti","full_name":"Geretti, Luca","first_name":"Luca"},{"first_name":"Niklas","full_name":"Kochdumper, Niklas","last_name":"Kochdumper"},{"first_name":"David P.","last_name":"Sanders","full_name":"Sanders, David P."},{"first_name":"Christian","id":"3A2F4DCE-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0003-3658-1065","full_name":"Schilling, Christian","last_name":"Schilling"}],"title":"ARCH-COMP19 Category Report: Continuous and hybrid systems with nonlinear dynamics","oa":1,"publisher":"EasyChair Publications","quality_controlled":"1","year":"2019","has_accepted_license":"1","publication":"EPiC Series in Computing","day":"25","page":"41-61","date_created":"2020-03-08T23:00:49Z","date_published":"2019-05-25T00:00:00Z","doi":"10.29007/m75b","_id":"7576","conference":{"location":"Montreal, Canada","end_date":"2019-04-15","start_date":"2019-04-15","name":"ARCH: International Workshop on Applied Verification on Continuous and Hybrid Systems"},"type":"conference","status":"public","date_updated":"2021-01-12T08:14:17Z","ddc":["000"],"department":[{"_id":"ToHe"}],"file_date_updated":"2020-07-14T12:48:00Z","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"}],"oa_version":"Published Version","scopus_import":1,"intvolume":" 61","month":"05","publication_status":"published","publication_identifier":{"eissn":["23987340"]},"language":[{"iso":"eng"}],"file":[{"checksum":"9138977a06fcd6a95976eb4bca875f0c","file_id":"7617","relation":"main_file","access_level":"open_access","content_type":"application/pdf","file_name":"2019_ARCH19_Immler.pdf","date_created":"2020-03-24T07:36:36Z","creator":"dernst","file_size":1934830,"date_updated":"2020-07-14T12:48:00Z"}],"volume":61},{"publication_identifier":{"eissn":["23987340"]},"publication_status":"published","year":"2019","day":"25","language":[{"iso":"eng"}],"publication":"EPiC Series in Computing","page":"14-40","doi":"10.29007/bj1w","date_published":"2019-05-25T00:00:00Z","volume":61,"date_created":"2020-09-26T14:23:54Z","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"}],"oa_version":"Published Version","publisher":"EasyChair","quality_controlled":"1","oa":1,"main_file_link":[{"open_access":"1","url":"https://easychair.org/publications/open/1gbP"}],"month":"05","intvolume":" 61","date_updated":"2021-01-12T08:20:05Z","citation":{"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.","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.","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.","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","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","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.","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."},"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","author":[{"first_name":"Matthias","full_name":"Althoff, Matthias","last_name":"Althoff"},{"first_name":"Stanley","last_name":"Bak","full_name":"Bak, Stanley"},{"last_name":"Forets","full_name":"Forets, Marcelo","first_name":"Marcelo"},{"last_name":"Frehse","full_name":"Frehse, Goran","first_name":"Goran"},{"first_name":"Niklas","full_name":"Kochdumper, Niklas","last_name":"Kochdumper"},{"first_name":"Rajarshi","full_name":"Ray, Rajarshi","last_name":"Ray"},{"last_name":"Schilling","full_name":"Schilling, Christian","orcid":"0000-0003-3658-1065","id":"3A2F4DCE-F248-11E8-B48F-1D18A9856A87","first_name":"Christian"},{"full_name":"Schupp, Stefan","last_name":"Schupp","first_name":"Stefan"}],"article_processing_charge":"No","title":"ARCH-COMP19 Category Report: Continuous and hybrid systems with linear continuous dynamics","department":[{"_id":"ToHe"}],"_id":"8570","type":"conference","conference":{"name":"ARCH: International Workshop on Applied Verification on Continuous and Hybrid Systems","end_date":"2019-04-15","location":"Montreal, Canada","start_date":"2019-04-15"},"status":"public"},{"date_updated":"2023-08-07T14:08:34Z","ddc":["004"],"department":[{"_id":"ToHe"},{"_id":"KrCh"}],"file_date_updated":"2020-07-14T12:47:42Z","_id":"6884","tmp":{"legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","image":"/images/cc_by.png","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","short":"CC BY (4.0)"},"conference":{"start_date":"2019-08-26","location":"Aachen, Germany","end_date":"2019-08-30","name":"MFCS: nternational Symposium on Mathematical Foundations of Computer Science"},"type":"conference","status":"public","publication_status":"published","language":[{"iso":"eng"}],"file":[{"access_level":"open_access","relation":"main_file","content_type":"application/pdf","file_id":"6913","checksum":"6346e116a4f4ed1414174d96d2c4fbd7","creator":"kschuh","date_updated":"2020-07-14T12:47:42Z","file_size":554457,"date_created":"2019-09-27T11:45:15Z","file_name":"2019_LIPIcs_Avni.pdf"}],"ec_funded":1,"volume":138,"related_material":{"record":[{"relation":"later_version","id":"9239","status":"public"}]},"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"}],"oa_version":"Published Version","alternative_title":["LIPIcs"],"scopus_import":1,"intvolume":" 138","month":"08","citation":{"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.","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.","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","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","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.","short":"G. Avni, T.A. Henzinger, D. Zikelic, in:, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2019.","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."},"user_id":"3E5EF7F0-F248-11E8-B48F-1D18A9856A87","external_id":{"arxiv":["1905.03835"]},"author":[{"last_name":"Avni","orcid":"0000-0001-5588-8287","full_name":"Avni, Guy","id":"463C8BC2-F248-11E8-B48F-1D18A9856A87","first_name":"Guy"},{"first_name":"Thomas A","id":"40876CD8-F248-11E8-B48F-1D18A9856A87","last_name":"Henzinger","full_name":"Henzinger, Thomas A","orcid":"0000−0002−2985−7724"},{"full_name":"Zikelic, Dorde","last_name":"Zikelic","first_name":"Dorde","id":"294AA7A6-F248-11E8-B48F-1D18A9856A87"}],"title":"Bidding mechanisms in graph games","article_number":"11","project":[{"call_identifier":"H2020","_id":"2564DBCA-B435-11E9-9278-68D0E5697425","name":"International IST Doctoral Program","grant_number":"665385"},{"call_identifier":"FWF","_id":"264B3912-B435-11E9-9278-68D0E5697425","name":"Formal Methods meets Algorithmic Game Theory","grant_number":"M02369"},{"name":"The Wittgenstein Prize","grant_number":"Z211","_id":"25F42A32-B435-11E9-9278-68D0E5697425","call_identifier":"FWF"},{"grant_number":"S11402-N23","name":"Rigorous Systems Engineering","call_identifier":"FWF","_id":"25F2ACDE-B435-11E9-9278-68D0E5697425"}],"year":"2019","has_accepted_license":"1","day":"01","date_created":"2019-09-18T08:04:26Z","doi":"10.4230/LIPICS.MFCS.2019.11","date_published":"2019-08-01T00:00:00Z","oa":1,"publisher":"Schloss Dagstuhl - Leibniz-Zentrum für Informatik","quality_controlled":"1"}]