--- _id: '512' abstract: - lang: eng text: 'The fixation probability is the probability that a new mutant introduced in a homogeneous population eventually takes over the entire population. The fixation probability is a fundamental quantity of natural selection, and known to depend on the population structure. Amplifiers of natural selection are population structures which increase the fixation probability of advantageous mutants, as compared to the baseline case of well-mixed populations. In this work we focus on symmetric population structures represented as undirected graphs. In the regime of undirected graphs, the strongest amplifier known has been the Star graph, and the existence of undirected graphs with stronger amplification properties has remained open for over a decade. In this work we present the Comet and Comet-swarm families of undirected graphs. We show that for a range of fitness values of the mutants, the Comet and Cometswarm graphs have fixation probability strictly larger than the fixation probability of the Star graph, for fixed population size and at the limit of large populations, respectively. ' article_number: '82' article_processing_charge: No author: - first_name: Andreas full_name: Pavlogiannis, Andreas id: 49704004-F248-11E8-B48F-1D18A9856A87 last_name: Pavlogiannis orcid: 0000-0002-8943-0722 - first_name: Josef full_name: Tkadlec, Josef id: 3F24CCC8-F248-11E8-B48F-1D18A9856A87 last_name: Tkadlec orcid: 0000-0002-1097-9684 - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Martin full_name: Nowak, Martin last_name: Nowak citation: ama: 'Pavlogiannis A, Tkadlec J, Chatterjee K, Nowak M. Amplification on undirected population structures: Comets beat stars. Scientific Reports. 2017;7(1). doi:10.1038/s41598-017-00107-w' apa: 'Pavlogiannis, A., Tkadlec, J., Chatterjee, K., & Nowak, M. (2017). Amplification on undirected population structures: Comets beat stars. Scientific Reports. Nature Publishing Group. https://doi.org/10.1038/s41598-017-00107-w' chicago: 'Pavlogiannis, Andreas, Josef Tkadlec, Krishnendu Chatterjee, and Martin Nowak. “Amplification on Undirected Population Structures: Comets Beat Stars.” Scientific Reports. Nature Publishing Group, 2017. https://doi.org/10.1038/s41598-017-00107-w.' ieee: 'A. Pavlogiannis, J. Tkadlec, K. Chatterjee, and M. Nowak, “Amplification on undirected population structures: Comets beat stars,” Scientific Reports, vol. 7, no. 1. Nature Publishing Group, 2017.' ista: 'Pavlogiannis A, Tkadlec J, Chatterjee K, Nowak M. 2017. Amplification on undirected population structures: Comets beat stars. Scientific Reports. 7(1), 82.' mla: 'Pavlogiannis, Andreas, et al. “Amplification on Undirected Population Structures: Comets Beat Stars.” Scientific Reports, vol. 7, no. 1, 82, Nature Publishing Group, 2017, doi:10.1038/s41598-017-00107-w.' short: A. Pavlogiannis, J. Tkadlec, K. Chatterjee, M. Nowak, Scientific Reports 7 (2017). date_created: 2018-12-11T11:46:53Z date_published: 2017-03-06T00:00:00Z date_updated: 2023-02-23T12:26:57Z day: '06' ddc: - '004' department: - _id: KrCh doi: 10.1038/s41598-017-00107-w ec_funded: 1 file: - access_level: open_access checksum: 7d05cbdd914e194a019c0f91fb64e9a8 content_type: application/pdf creator: system date_created: 2018-12-12T10:18:35Z date_updated: 2020-07-14T12:46:36Z file_id: '5357' file_name: IST-2018-938-v1+1_2017_Pavlogiannis_Amplification_on.pdf file_size: 1536783 relation: main_file file_date_updated: 2020-07-14T12:46:36Z has_accepted_license: '1' intvolume: ' 7' issue: '1' language: - iso: eng month: '03' oa: 1 oa_version: Published Version project: - _id: 2584A770-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: P 23499-N23 name: Modern Graph Algorithmic Techniques in Formal Verification - _id: 25863FF4-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: S11407 name: Game Theory - _id: 2581B60A-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '279307' name: 'Quantitative Graph Games: Theory and Applications' publication: Scientific Reports publication_identifier: issn: - '20452322' publication_status: published publisher: Nature Publishing Group publist_id: '7307' pubrep_id: '938' quality_controlled: '1' related_material: record: - id: '5449' relation: earlier_version status: public scopus_import: 1 status: public title: 'Amplification on undirected population structures: Comets beat stars' tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 7 year: '2017' ... --- _id: '10416' abstract: - lang: eng text: 'A fundamental algorithmic problem at the heart of static analysis is Dyck reachability. The input is a graph where the edges are labeled with different types of opening and closing parentheses, and the reachability information is computed via paths whose parentheses are properly matched. We present new results for Dyck reachability problems with applications to alias analysis and data-dependence analysis. Our main contributions, that include improved upper bounds as well as lower bounds that establish optimality guarantees, are as follows: First, we consider Dyck reachability on bidirected graphs, which is the standard way of performing field-sensitive points-to analysis. Given a bidirected graph with n nodes and m edges, we present: (i) an algorithm with worst-case running time O(m + n · α(n)), where α(n) is the inverse Ackermann function, improving the previously known O(n2) time bound; (ii) a matching lower bound that shows that our algorithm is optimal wrt to worst-case complexity; and (iii) an optimal average-case upper bound of O(m) time, improving the previously known O(m · logn) bound. Second, we consider the problem of context-sensitive data-dependence analysis, where the task is to obtain analysis summaries of library code in the presence of callbacks. Our algorithm preprocesses libraries in almost linear time, after which the contribution of the library in the complexity of the client analysis is only linear, and only wrt the number of call sites. Third, we prove that combinatorial algorithms for Dyck reachability on general graphs with truly sub-cubic bounds cannot be obtained without obtaining sub-cubic combinatorial algorithms for Boolean Matrix Multiplication, which is a long-standing open problem. Thus we establish that the existing combinatorial algorithms for Dyck reachability are (conditionally) optimal for general graphs. We also show that the same hardness holds for graphs of constant treewidth. Finally, we provide a prototype implementation of our algorithms for both alias analysis and data-dependence analysis. Our experimental evaluation demonstrates that the new algorithms significantly outperform all existing methods on the two problems, over real-world benchmarks.' acknowledgement: "The research was partly supported by Austrian Science Fund (FWF) Grant No P23499-N23, FWF NFN Grant No S11407-N23 (RiSE/SHiNE), and ERC Start grant (279307: Graph Games).\r\n" article_number: '30' article_processing_charge: No article_type: original author: - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Bhavya full_name: Choudhary, Bhavya last_name: Choudhary - first_name: Andreas full_name: Pavlogiannis, Andreas id: 49704004-F248-11E8-B48F-1D18A9856A87 last_name: Pavlogiannis orcid: 0000-0002-8943-0722 citation: ama: Chatterjee K, Choudhary B, Pavlogiannis A. Optimal Dyck reachability for data-dependence and Alias analysis. Proceedings of the ACM on Programming Languages. 2017;2(POPL). doi:10.1145/3158118 apa: 'Chatterjee, K., Choudhary, B., & Pavlogiannis, A. (2017). Optimal Dyck reachability for data-dependence and Alias analysis. Proceedings of the ACM on Programming Languages. Los Angeles, CA, United States: Association for Computing Machinery. https://doi.org/10.1145/3158118' chicago: Chatterjee, Krishnendu, Bhavya Choudhary, and Andreas Pavlogiannis. “Optimal Dyck Reachability for Data-Dependence and Alias Analysis.” Proceedings of the ACM on Programming Languages. Association for Computing Machinery, 2017. https://doi.org/10.1145/3158118. ieee: K. Chatterjee, B. Choudhary, and A. Pavlogiannis, “Optimal Dyck reachability for data-dependence and Alias analysis,” Proceedings of the ACM on Programming Languages, vol. 2, no. POPL. Association for Computing Machinery, 2017. ista: Chatterjee K, Choudhary B, Pavlogiannis A. 2017. Optimal Dyck reachability for data-dependence and Alias analysis. Proceedings of the ACM on Programming Languages. 2(POPL), 30. mla: Chatterjee, Krishnendu, et al. “Optimal Dyck Reachability for Data-Dependence and Alias Analysis.” Proceedings of the ACM on Programming Languages, vol. 2, no. POPL, 30, Association for Computing Machinery, 2017, doi:10.1145/3158118. short: K. Chatterjee, B. Choudhary, A. Pavlogiannis, Proceedings of the ACM on Programming Languages 2 (2017). conference: end_date: 2018-01-13 location: Los Angeles, CA, United States name: 'POPL: Programming Languages' start_date: 2018-01-07 date_created: 2021-12-05T23:01:48Z date_published: 2017-12-27T00:00:00Z date_updated: 2023-02-23T12:27:13Z day: '27' ddc: - '000' department: - _id: KrCh doi: 10.1145/3158118 ec_funded: 1 external_id: arxiv: - '1910.00241' file: - access_level: open_access checksum: faa3f7b3fe8aab84b50ed805c26a0ee5 content_type: application/pdf creator: cchlebak date_created: 2021-12-07T08:06:28Z date_updated: 2021-12-07T08:06:28Z file_id: '10421' file_name: 2017_ACMProgLang_Chatterjee.pdf file_size: 460188 relation: main_file success: 1 file_date_updated: 2021-12-07T08:06:28Z has_accepted_license: '1' intvolume: ' 2' issue: POPL language: - iso: eng month: '12' oa: 1 oa_version: Published Version project: - _id: 2581B60A-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '279307' name: 'Quantitative Graph Games: Theory and Applications' - _id: 2584A770-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: P 23499-N23 name: Modern Graph Algorithmic Techniques in Formal Verification - _id: 25832EC2-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: S 11407_N23 name: Rigorous Systems Engineering publication: Proceedings of the ACM on Programming Languages publication_identifier: eissn: - 2475-1421 publication_status: published publisher: Association for Computing Machinery quality_controlled: '1' related_material: record: - id: '5455' relation: earlier_version status: public scopus_import: '1' status: public title: Optimal Dyck reachability for data-dependence and Alias analysis tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: journal_article user_id: 8b945eb4-e2f2-11eb-945a-df72226e66a9 volume: 2 year: '2017' ... --- _id: '5455' abstract: - lang: eng text: 'A fundamental algorithmic problem at the heart of static analysis is Dyck reachability. The input is a graphwhere the edges are labeled with different types of opening and closing parentheses, and the reachabilityinformation is computed via paths whose parentheses are properly matched. We present new results for Dyckreachability problems with applications to alias analysis and data-dependence analysis. Our main contributions,that include improved upper bounds as well as lower bounds that establish optimality guarantees, are asfollows:First, we consider Dyck reachability on bidirected graphs, which is the standard way of performing field-sensitive points-to analysis. Given a bidirected graph withnnodes andmedges, we present: (i) an algorithmwith worst-case running timeO(m+n·α(n)), whereα(n)is the inverse Ackermann function, improving thepreviously knownO(n2)time bound; (ii) a matching lower bound that shows that our algorithm is optimalwrt to worst-case complexity; and (iii) an optimal average-case upper bound ofO(m)time, improving thepreviously knownO(m·logn)bound.Second, we consider the problem of context-sensitive data-dependence analysis, where the task is to obtainanalysis summaries of library code in the presence of callbacks. Our algorithm preprocesses libraries in almostlinear time, after which the contribution of the library in the complexity of the client analysis is only linear,and only wrt the number of call sites.Third, we prove that combinatorial algorithms for Dyck reachability on general graphs with truly sub-cubic bounds cannot be obtained without obtaining sub-cubic combinatorial algorithms for Boolean MatrixMultiplication, which is a long-standing open problem. Thus we establish that the existing combinatorialalgorithms for Dyck reachability are (conditionally) optimal for general graphs. We also show that the samehardness holds for graphs of constant treewidth.Finally, we provide a prototype implementation of our algorithms for both alias analysis and data-dependenceanalysis. Our experimental evaluation demonstrates that the new algorithms significantly outperform allexisting methods on the two problems, over real-world benchmarks.' alternative_title: - IST Austria Technical Report article_processing_charge: No author: - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Bhavya full_name: Choudhary, Bhavya last_name: Choudhary - first_name: Andreas full_name: Pavlogiannis, Andreas id: 49704004-F248-11E8-B48F-1D18A9856A87 last_name: Pavlogiannis orcid: 0000-0002-8943-0722 citation: ama: Chatterjee K, Choudhary B, Pavlogiannis A. Optimal Dyck Reachability for Data-Dependence and Alias Analysis. IST Austria; 2017. doi:10.15479/AT:IST-2017-870-v1-1 apa: Chatterjee, K., Choudhary, B., & Pavlogiannis, A. (2017). Optimal Dyck reachability for data-dependence and alias analysis. IST Austria. https://doi.org/10.15479/AT:IST-2017-870-v1-1 chicago: Chatterjee, Krishnendu, Bhavya Choudhary, and Andreas Pavlogiannis. Optimal Dyck Reachability for Data-Dependence and Alias Analysis. IST Austria, 2017. https://doi.org/10.15479/AT:IST-2017-870-v1-1. ieee: K. Chatterjee, B. Choudhary, and A. Pavlogiannis, Optimal Dyck reachability for data-dependence and alias analysis. IST Austria, 2017. ista: Chatterjee K, Choudhary B, Pavlogiannis A. 2017. Optimal Dyck reachability for data-dependence and alias analysis, IST Austria, 37p. mla: Chatterjee, Krishnendu, et al. Optimal Dyck Reachability for Data-Dependence and Alias Analysis. IST Austria, 2017, doi:10.15479/AT:IST-2017-870-v1-1. short: K. Chatterjee, B. Choudhary, A. Pavlogiannis, Optimal Dyck Reachability for Data-Dependence and Alias Analysis, IST Austria, 2017. date_created: 2018-12-12T11:39:26Z date_published: 2017-10-23T00:00:00Z date_updated: 2023-02-21T15:54:10Z day: '23' ddc: - '000' department: - _id: KrCh doi: 10.15479/AT:IST-2017-870-v1-1 file: - access_level: open_access checksum: 177a84a46e3ac17e87b31534ad16a4c9 content_type: application/pdf creator: system date_created: 2018-12-12T11:54:02Z date_updated: 2020-07-14T12:46:59Z file_id: '5524' file_name: IST-2017-870-v1+1_main.pdf file_size: 960491 relation: main_file file_date_updated: 2020-07-14T12:46:59Z has_accepted_license: '1' language: - iso: eng month: '10' oa: 1 oa_version: Published Version page: '37' publication_identifier: issn: - 2664-1690 publication_status: published publisher: IST Austria pubrep_id: '870' related_material: record: - id: '10416' relation: later_version status: public status: public title: Optimal Dyck reachability for data-dependence and alias analysis type: technical_report user_id: 8b945eb4-e2f2-11eb-945a-df72226e66a9 year: '2017' ... --- _id: '10417' abstract: - lang: eng text: "We present a new dynamic partial-order reduction method for stateless model checking of concurrent programs. A common approach for exploring program behaviors relies on enumerating the traces of the program, without storing the visited states (aka stateless exploration). As the number of distinct traces grows exponentially, dynamic partial-order reduction (DPOR) techniques have been successfully used to partition the space of traces into equivalence classes (Mazurkiewicz partitioning), with the goal of exploring only few representative traces from each class.\r\n\r\nWe introduce a new equivalence on traces under sequential consistency semantics, which we call the observation equivalence. Two traces are observationally equivalent if every read event observes the same write event in both traces. While the traditional Mazurkiewicz equivalence is control-centric, our new definition is data-centric. We show that our observation equivalence is coarser than the Mazurkiewicz equivalence, and in many cases even exponentially coarser. We devise a DPOR exploration of the trace space, called data-centric DPOR, based on the observation equivalence." acknowledgement: "The research was partly supported by Austrian Science Fund (FWF) Grant No P23499- N23, FWF\r\nNFN Grant No S11407-N23 (RiSE/SHiNE), ERC Start grant (279307: Graph Games), and Czech\r\nScience Foundation grant GBP202/12/G061." article_number: '31' article_processing_charge: No article_type: original author: - first_name: Marek full_name: Chalupa, Marek last_name: Chalupa - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Andreas full_name: Pavlogiannis, Andreas id: 49704004-F248-11E8-B48F-1D18A9856A87 last_name: Pavlogiannis orcid: 0000-0002-8943-0722 - first_name: Nishant full_name: Sinha, Nishant last_name: Sinha - first_name: Kapil full_name: Vaidya, Kapil last_name: Vaidya citation: ama: Chalupa M, Chatterjee K, Pavlogiannis A, Sinha N, Vaidya K. Data-centric dynamic partial order reduction. Proceedings of the ACM on Programming Languages. 2017;2(POPL). doi:10.1145/3158119 apa: 'Chalupa, M., Chatterjee, K., Pavlogiannis, A., Sinha, N., & Vaidya, K. (2017). Data-centric dynamic partial order reduction. Proceedings of the ACM on Programming Languages. Los Angeles, CA, United States: Association for Computing Machinery. https://doi.org/10.1145/3158119' chicago: Chalupa, Marek, Krishnendu Chatterjee, Andreas Pavlogiannis, Nishant Sinha, and Kapil Vaidya. “Data-Centric Dynamic Partial Order Reduction.” Proceedings of the ACM on Programming Languages. Association for Computing Machinery, 2017. https://doi.org/10.1145/3158119. ieee: M. Chalupa, K. Chatterjee, A. Pavlogiannis, N. Sinha, and K. Vaidya, “Data-centric dynamic partial order reduction,” Proceedings of the ACM on Programming Languages, vol. 2, no. POPL. Association for Computing Machinery, 2017. ista: Chalupa M, Chatterjee K, Pavlogiannis A, Sinha N, Vaidya K. 2017. Data-centric dynamic partial order reduction. Proceedings of the ACM on Programming Languages. 2(POPL), 31. mla: Chalupa, Marek, et al. “Data-Centric Dynamic Partial Order Reduction.” Proceedings of the ACM on Programming Languages, vol. 2, no. POPL, 31, Association for Computing Machinery, 2017, doi:10.1145/3158119. short: M. Chalupa, K. Chatterjee, A. Pavlogiannis, N. Sinha, K. Vaidya, Proceedings of the ACM on Programming Languages 2 (2017). conference: end_date: 2018-01-13 location: Los Angeles, CA, United States name: 'POPL: Programming Languages' start_date: 2018-01-07 date_created: 2021-12-05T23:01:49Z date_published: 2017-12-27T00:00:00Z date_updated: 2023-02-23T12:27:16Z day: '27' department: - _id: KrCh doi: 10.1145/3158119 ec_funded: 1 external_id: arxiv: - '1610.01188' intvolume: ' 2' issue: POPL language: - iso: eng main_file_link: - open_access: '1' url: https://dl.acm.org/doi/10.1145/3158119 month: '12' oa: 1 oa_version: Published Version project: - _id: 2584A770-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: P 23499-N23 name: Modern Graph Algorithmic Techniques in Formal Verification - _id: 25832EC2-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: S 11407_N23 name: Rigorous Systems Engineering - _id: 2581B60A-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '279307' name: 'Quantitative Graph Games: Theory and Applications' publication: Proceedings of the ACM on Programming Languages publication_identifier: eissn: - 2475-1421 publication_status: published publisher: Association for Computing Machinery quality_controlled: '1' related_material: record: - id: '5448' relation: earlier_version status: public - id: '5456' relation: earlier_version status: public scopus_import: '1' status: public title: Data-centric dynamic partial order reduction type: journal_article user_id: 8b945eb4-e2f2-11eb-945a-df72226e66a9 volume: 2 year: '2017' ... --- _id: '5456' abstract: - lang: eng text: "We present a new dynamic partial-order reduction method for stateless model checking of concurrent programs. A common approach for exploring program behaviors relies on enumerating the traces of the program, without storing the visited states (aka stateless exploration). As the number of distinct traces grows exponentially, dynamic partial-order reduction (DPOR) techniques have been successfully used to partition the space of traces into equivalence classes (Mazurkiewicz partitioning), with the goal of exploring only few representative traces from each class.\r\nWe introduce a new equivalence on traces under sequential consistency semantics, which we call the observation equivalence. Two traces are observationally equivalent if every read event observes the same write event in both traces. While the traditional Mazurkiewicz equivalence is control-centric, our new definition is data-centric. We show that our observation equivalence is coarser than the Mazurkiewicz equivalence, and in many cases even exponentially coarser. We devise a DPOR exploration of the trace space, called data-centric DPOR, based on the observation equivalence.\r\n1. For acyclic architectures, our algorithm is guaranteed to explore exactly one representative trace from each observation class, while spending polynomial time per class. Hence, our algorithm is optimal wrt the observation equivalence, and in several cases explores exponentially fewer traces than any enumerative method based on the Mazurkiewicz equivalence.\r\n2. For cyclic architectures, we consider an equivalence between traces which is finer than the observation equivalence; but coarser than the Mazurkiewicz equivalence, and in some cases is exponentially coarser. Our data-centric DPOR algorithm remains optimal under this trace equivalence. \r\nFinally, we perform a basic experimental comparison between the existing Mazurkiewicz-based DPOR and our data-centric DPOR on a set of academic benchmarks. Our results show a significant reduction in both running time and the number of explored equivalence classes." alternative_title: - IST Austria Technical Report author: - first_name: Marek full_name: Chalupa, Marek last_name: Chalupa - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Andreas full_name: Pavlogiannis, Andreas id: 49704004-F248-11E8-B48F-1D18A9856A87 last_name: Pavlogiannis orcid: 0000-0002-8943-0722 - first_name: Nishant full_name: Sinha, Nishant last_name: Sinha - first_name: Kapil full_name: Vaidya, Kapil last_name: Vaidya citation: ama: Chalupa M, Chatterjee K, Pavlogiannis A, Sinha N, Vaidya K. Data-Centric Dynamic Partial Order Reduction. IST Austria; 2017. doi:10.15479/AT:IST-2017-872-v1-1 apa: Chalupa, M., Chatterjee, K., Pavlogiannis, A., Sinha, N., & Vaidya, K. (2017). Data-centric dynamic partial order reduction. IST Austria. https://doi.org/10.15479/AT:IST-2017-872-v1-1 chicago: Chalupa, Marek, Krishnendu Chatterjee, Andreas Pavlogiannis, Nishant Sinha, and Kapil Vaidya. Data-Centric Dynamic Partial Order Reduction. IST Austria, 2017. https://doi.org/10.15479/AT:IST-2017-872-v1-1. ieee: M. Chalupa, K. Chatterjee, A. Pavlogiannis, N. Sinha, and K. Vaidya, Data-centric dynamic partial order reduction. IST Austria, 2017. ista: Chalupa M, Chatterjee K, Pavlogiannis A, Sinha N, Vaidya K. 2017. Data-centric dynamic partial order reduction, IST Austria, 36p. mla: Chalupa, Marek, et al. Data-Centric Dynamic Partial Order Reduction. IST Austria, 2017, doi:10.15479/AT:IST-2017-872-v1-1. short: M. Chalupa, K. Chatterjee, A. Pavlogiannis, N. Sinha, K. Vaidya, Data-Centric Dynamic Partial Order Reduction, IST Austria, 2017. date_created: 2018-12-12T11:39:26Z date_published: 2017-10-23T00:00:00Z date_updated: 2023-02-23T12:26:54Z day: '23' ddc: - '000' department: - _id: KrCh doi: 10.15479/AT:IST-2017-872-v1-1 file: - access_level: open_access checksum: d2635c4cf013000f0a1b09e80f9e4ab7 content_type: application/pdf creator: system date_created: 2018-12-12T11:53:26Z date_updated: 2020-07-14T12:46:59Z file_id: '5487' file_name: IST-2017-872-v1+1_main.pdf file_size: 910347 relation: main_file file_date_updated: 2020-07-14T12:46:59Z has_accepted_license: '1' language: - iso: eng month: '10' oa: 1 oa_version: Published Version page: '36' publication_identifier: issn: - 2664-1690 publication_status: published publisher: IST Austria pubrep_id: '872' related_material: record: - id: '10417' relation: later_version status: public - id: '5448' relation: earlier_version status: public status: public title: Data-centric dynamic partial order reduction type: technical_report user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 year: '2017' ... --- _id: '551' abstract: - lang: eng text: 'Evolutionary graph theory studies the evolutionary dynamics in a population structure given as a connected graph. Each node of the graph represents an individual of the population, and edges determine how offspring are placed. We consider the classical birth-death Moran process where there are two types of individuals, namely, the residents with fitness 1 and mutants with fitness r. The fitness indicates the reproductive strength. The evolutionary dynamics happens as follows: in the initial step, in a population of all resident individuals a mutant is introduced, and then at each step, an individual is chosen proportional to the fitness of its type to reproduce, and the offspring replaces a neighbor uniformly at random. The process stops when all individuals are either residents or mutants. The probability that all individuals in the end are mutants is called the fixation probability, which is a key factor in the rate of evolution. We consider the problem of approximating the fixation probability. The class of algorithms that is extremely relevant for approximation of the fixation probabilities is the Monte-Carlo simulation of the process. Previous results present a polynomial-time Monte-Carlo algorithm for undirected graphs when r is given in unary. First, we present a simple modification: instead of simulating each step, we discard ineffective steps, where no node changes type (i.e., either residents replace residents, or mutants replace mutants). Using the above simple modification and our result that the number of effective steps is concentrated around the expected number of effective steps, we present faster polynomial-time Monte-Carlo algorithms for undirected graphs. Our algorithms are always at least a factor O(n2/ log n) faster as compared to the previous algorithms, where n is the number of nodes, and is polynomial even if r is given in binary. We also present lower bounds showing that the upper bound on the expected number of effective steps we present is asymptotically tight for undirected graphs. ' alternative_title: - LIPIcs article_number: '61' author: - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Rasmus full_name: Ibsen-Jensen, Rasmus id: 3B699956-F248-11E8-B48F-1D18A9856A87 last_name: Ibsen-Jensen orcid: 0000-0003-4783-0389 - first_name: Martin full_name: Nowak, Martin last_name: Nowak citation: ama: 'Chatterjee K, Ibsen-Jensen R, Nowak M. Faster Monte Carlo algorithms for fixation probability of the Moran process on undirected graphs. In: Leibniz International Proceedings in Informatics. Vol 83. Schloss Dagstuhl - Leibniz-Zentrum für Informatik; 2017. doi:10.4230/LIPIcs.MFCS.2017.61' apa: 'Chatterjee, K., Ibsen-Jensen, R., & Nowak, M. (2017). Faster Monte Carlo algorithms for fixation probability of the Moran process on undirected graphs. In Leibniz International Proceedings in Informatics (Vol. 83). Aalborg, Denmark: Schloss Dagstuhl - Leibniz-Zentrum für Informatik. https://doi.org/10.4230/LIPIcs.MFCS.2017.61' chicago: Chatterjee, Krishnendu, Rasmus Ibsen-Jensen, and Martin Nowak. “Faster Monte Carlo Algorithms for Fixation Probability of the Moran Process on Undirected Graphs.” In Leibniz International Proceedings in Informatics, Vol. 83. Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2017. https://doi.org/10.4230/LIPIcs.MFCS.2017.61. ieee: K. Chatterjee, R. Ibsen-Jensen, and M. Nowak, “Faster Monte Carlo algorithms for fixation probability of the Moran process on undirected graphs,” in Leibniz International Proceedings in Informatics, Aalborg, Denmark, 2017, vol. 83. ista: 'Chatterjee K, Ibsen-Jensen R, Nowak M. 2017. Faster Monte Carlo algorithms for fixation probability of the Moran process on undirected graphs. Leibniz International Proceedings in Informatics. MFCS: Mathematical Foundations of Computer Science (SG), LIPIcs, vol. 83, 61.' mla: Chatterjee, Krishnendu, et al. “Faster Monte Carlo Algorithms for Fixation Probability of the Moran Process on Undirected Graphs.” Leibniz International Proceedings in Informatics, vol. 83, 61, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2017, doi:10.4230/LIPIcs.MFCS.2017.61. short: K. Chatterjee, R. Ibsen-Jensen, M. Nowak, in:, Leibniz International Proceedings in Informatics, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2017. conference: end_date: 2017-08-25 location: Aalborg, Denmark name: 'MFCS: Mathematical Foundations of Computer Science (SG)' start_date: 2017-08-21 date_created: 2018-12-11T11:47:08Z date_published: 2017-11-01T00:00:00Z date_updated: 2021-01-12T08:02:34Z day: '01' ddc: - '004' department: - _id: KrCh doi: 10.4230/LIPIcs.MFCS.2017.61 file: - access_level: open_access checksum: 2eed5224c0e4e259484a1d71acb8ba6a content_type: application/pdf creator: system date_created: 2018-12-12T10:18:04Z date_updated: 2020-07-14T12:47:00Z file_id: '5322' file_name: IST-2018-924-v1+1_LIPIcs-MFCS-2017-61.pdf file_size: 535077 relation: main_file file_date_updated: 2020-07-14T12:47:00Z has_accepted_license: '1' intvolume: ' 83' language: - iso: eng month: '11' oa: 1 oa_version: Published Version publication: Leibniz International Proceedings in Informatics publication_identifier: isbn: - 978-395977046-0 publication_status: published publisher: Schloss Dagstuhl - Leibniz-Zentrum für Informatik publist_id: '7263' pubrep_id: '924' quality_controlled: '1' scopus_import: 1 status: public title: Faster Monte Carlo algorithms for fixation probability of the Moran process on undirected graphs tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: conference user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87 volume: 83 year: '2017' ... --- _id: '552' abstract: - lang: eng text: 'Graph games provide the foundation for modeling and synthesis of reactive processes. Such games are played over graphs where the vertices are controlled by two adversarial players. We consider graph games where the objective of the first player is the conjunction of a qualitative objective (specified as a parity condition) and a quantitative objective (specified as a meanpayoff condition). There are two variants of the problem, namely, the threshold problem where the quantitative goal is to ensure that the mean-payoff value is above a threshold, and the value problem where the quantitative goal is to ensure the optimal mean-payoff value; in both cases ensuring the qualitative parity objective. The previous best-known algorithms for game graphs with n vertices, m edges, parity objectives with d priorities, and maximal absolute reward value W for mean-payoff objectives, are as follows: O(nd+1 . m . w) for the threshold problem, and O(nd+2 · m · W) for the value problem. Our main contributions are faster algorithms, and the running times of our algorithms are as follows: O(nd-1 · m ·W) for the threshold problem, and O(nd · m · W · log(n · W)) for the value problem. For mean-payoff parity objectives with two priorities, our algorithms match the best-known bounds of the algorithms for mean-payoff games (without conjunction with parity objectives). Our results are relevant in synthesis of reactive systems with both functional requirement (given as a qualitative objective) and performance requirement (given as a quantitative objective).' alternative_title: - LIPIcs article_number: '39' article_processing_charge: No author: - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Monika H full_name: Henzinger, Monika H id: 540c9bbd-f2de-11ec-812d-d04a5be85630 last_name: Henzinger orcid: 0000-0002-5008-6530 - first_name: Alexander full_name: Svozil, Alexander last_name: Svozil citation: ama: 'Chatterjee K, Henzinger MH, Svozil A. Faster algorithms for mean-payoff parity games. In: Leibniz International Proceedings in Informatics. Vol 83. Schloss Dagstuhl - Leibniz-Zentrum für Informatik; 2017. doi:10.4230/LIPIcs.MFCS.2017.39' apa: 'Chatterjee, K., Henzinger, M. H., & Svozil, A. (2017). Faster algorithms for mean-payoff parity games. In Leibniz International Proceedings in Informatics (Vol. 83). Aalborg, Denmark: Schloss Dagstuhl - Leibniz-Zentrum für Informatik. https://doi.org/10.4230/LIPIcs.MFCS.2017.39' chicago: Chatterjee, Krishnendu, Monika H Henzinger, and Alexander Svozil. “Faster Algorithms for Mean-Payoff Parity Games.” In Leibniz International Proceedings in Informatics, Vol. 83. Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2017. https://doi.org/10.4230/LIPIcs.MFCS.2017.39. ieee: K. Chatterjee, M. H. Henzinger, and A. Svozil, “Faster algorithms for mean-payoff parity games,” in Leibniz International Proceedings in Informatics, Aalborg, Denmark, 2017, vol. 83. ista: 'Chatterjee K, Henzinger MH, Svozil A. 2017. Faster algorithms for mean-payoff parity games. Leibniz International Proceedings in Informatics. MFCS: Mathematical Foundations of Computer Science (SG), LIPIcs, vol. 83, 39.' mla: Chatterjee, Krishnendu, et al. “Faster Algorithms for Mean-Payoff Parity Games.” Leibniz International Proceedings in Informatics, vol. 83, 39, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2017, doi:10.4230/LIPIcs.MFCS.2017.39. short: K. Chatterjee, M.H. Henzinger, A. Svozil, in:, Leibniz International Proceedings in Informatics, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2017. conference: end_date: 2017-08-25 location: Aalborg, Denmark name: 'MFCS: Mathematical Foundations of Computer Science (SG)' start_date: 2017-08-21 date_created: 2018-12-11T11:47:08Z date_published: 2017-11-01T00:00:00Z date_updated: 2023-02-14T10:06:46Z day: '01' ddc: - '004' department: - _id: KrCh doi: 10.4230/LIPIcs.MFCS.2017.39 ec_funded: 1 file: - access_level: open_access checksum: c67f4866ddbfd555afef1f63ae9a8fc7 content_type: application/pdf creator: system date_created: 2018-12-12T10:16:57Z date_updated: 2020-07-14T12:47:00Z file_id: '5248' file_name: IST-2018-923-v1+1_LIPIcs-MFCS-2017-39.pdf file_size: 610339 relation: main_file file_date_updated: 2020-07-14T12:47:00Z has_accepted_license: '1' intvolume: ' 83' language: - iso: eng license: https://creativecommons.org/licenses/by/3.0/ month: '11' oa: 1 oa_version: Published Version project: - _id: 25863FF4-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: S11407 name: Game Theory - _id: 2581B60A-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '279307' name: 'Quantitative Graph Games: Theory and Applications' publication: Leibniz International Proceedings in Informatics publication_identifier: isbn: - 978-395977046-0 publication_status: published publisher: Schloss Dagstuhl - Leibniz-Zentrum für Informatik publist_id: '7262' pubrep_id: '923' quality_controlled: '1' scopus_import: '1' status: public title: Faster algorithms for mean-payoff parity games tmp: 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) short: CC BY (3.0) type: conference user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 83 year: '2017' ... --- _id: '553' abstract: - lang: eng text: 'We consider two player, zero-sum, finite-state concurrent reachability games, played for an infinite number of rounds, where in every round, each player simultaneously and independently of the other players chooses an action, whereafter the successor state is determined by a probability distribution given by the current state and the chosen actions. Player 1 wins iff a designated goal state is eventually visited. We are interested in the complexity of stationary strategies measured by their patience, which is defined as the inverse of the smallest non-zero probability employed. Our main results are as follows: We show that: (i) the optimal bound on the patience of optimal and -optimal strategies, for both players is doubly exponential; and (ii) even in games with a single non-absorbing state exponential (in the number of actions) patience is necessary. ' alternative_title: - LIPIcs article_number: '55' author: - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Kristofer full_name: Hansen, Kristofer last_name: Hansen - first_name: Rasmus full_name: Ibsen-Jensen, Rasmus id: 3B699956-F248-11E8-B48F-1D18A9856A87 last_name: Ibsen-Jensen orcid: 0000-0003-4783-0389 citation: ama: 'Chatterjee K, Hansen K, Ibsen-Jensen R. Strategy complexity of concurrent safety games. In: Leibniz International Proceedings in Informatics. Vol 83. Schloss Dagstuhl - Leibniz-Zentrum für Informatik; 2017. doi:10.4230/LIPIcs.MFCS.2017.55' apa: 'Chatterjee, K., Hansen, K., & Ibsen-Jensen, R. (2017). Strategy complexity of concurrent safety games. In Leibniz International Proceedings in Informatics (Vol. 83). Aalborg, Denmark: Schloss Dagstuhl - Leibniz-Zentrum für Informatik. https://doi.org/10.4230/LIPIcs.MFCS.2017.55' chicago: Chatterjee, Krishnendu, Kristofer Hansen, and Rasmus Ibsen-Jensen. “Strategy Complexity of Concurrent Safety Games.” In Leibniz International Proceedings in Informatics, Vol. 83. Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2017. https://doi.org/10.4230/LIPIcs.MFCS.2017.55. ieee: K. Chatterjee, K. Hansen, and R. Ibsen-Jensen, “Strategy complexity of concurrent safety games,” in Leibniz International Proceedings in Informatics, Aalborg, Denmark, 2017, vol. 83. ista: 'Chatterjee K, Hansen K, Ibsen-Jensen R. 2017. Strategy complexity of concurrent safety games. Leibniz International Proceedings in Informatics. MFCS: Mathematical Foundations of Computer Science (SG), LIPIcs, vol. 83, 55.' mla: Chatterjee, Krishnendu, et al. “Strategy Complexity of Concurrent Safety Games.” Leibniz International Proceedings in Informatics, vol. 83, 55, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2017, doi:10.4230/LIPIcs.MFCS.2017.55. short: K. Chatterjee, K. Hansen, R. Ibsen-Jensen, in:, Leibniz International Proceedings in Informatics, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2017. conference: end_date: 2017-08-25 location: Aalborg, Denmark name: 'MFCS: Mathematical Foundations of Computer Science (SG)' start_date: 2017-08-21 date_created: 2018-12-11T11:47:08Z date_published: 2017-11-01T00:00:00Z date_updated: 2021-01-12T08:02:35Z day: '01' ddc: - '004' department: - _id: KrCh doi: 10.4230/LIPIcs.MFCS.2017.55 file: - access_level: open_access checksum: 7101facb56ade363205c695d72dbd173 content_type: application/pdf creator: system date_created: 2018-12-12T10:09:29Z date_updated: 2020-07-14T12:47:00Z file_id: '4753' file_name: IST-2018-922-v1+1_LIPIcs-MFCS-2017-55.pdf file_size: 549967 relation: main_file file_date_updated: 2020-07-14T12:47:00Z has_accepted_license: '1' intvolume: ' 83' language: - iso: eng main_file_link: - open_access: '1' url: https://arxiv.org/abs/1506.02434 month: '11' oa: 1 oa_version: Published Version publication: Leibniz International Proceedings in Informatics publication_identifier: isbn: - 978-395977046-0 publication_status: published publisher: Schloss Dagstuhl - Leibniz-Zentrum für Informatik publist_id: '7261' pubrep_id: '922' quality_controlled: '1' scopus_import: 1 status: public title: Strategy complexity of concurrent safety games tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: conference user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87 volume: 83 year: '2017' ... --- _id: '625' abstract: - lang: eng text: In the analysis of reactive systems a quantitative objective assigns a real value to every trace of the system. The value decision problem for a quantitative objective requires a trace whose value is at least a given threshold, and the exact value decision problem requires a trace whose value is exactly the threshold. We compare the computational complexity of the value and exact value decision problems for classical quantitative objectives, such as sum, discounted sum, energy, and mean-payoff for two standard models of reactive systems, namely, graphs and graph games. acknowledgement: 'This research was supported in part by the Austrian Science Fund (FWF) under grants S11402-N23 and S11407-N23 (RiSE/SHiNE), and Z211-N23 (Wittgenstein Award), ERC Start grant (279307: Graph Games), Vienna Science and Technology Fund (WWTF) through project ICT15-003.' alternative_title: - LNCS article_processing_charge: No author: - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Laurent full_name: Doyen, Laurent last_name: Doyen - first_name: Thomas A full_name: Henzinger, Thomas A id: 40876CD8-F248-11E8-B48F-1D18A9856A87 last_name: Henzinger orcid: 0000−0002−2985−7724 citation: ama: 'Chatterjee K, Doyen L, Henzinger TA. The cost of exactness in quantitative reachability. In: Aceto L, Bacci G, Ingólfsdóttir A, Legay A, Mardare R, eds. Models, Algorithms, Logics and Tools. Vol 10460. Theoretical Computer Science and General Issues. Springer; 2017:367-381. doi:10.1007/978-3-319-63121-9_18' apa: Chatterjee, K., Doyen, L., & Henzinger, T. A. (2017). The cost of exactness in quantitative reachability. In L. Aceto, G. Bacci, A. Ingólfsdóttir, A. Legay, & R. Mardare (Eds.), Models, Algorithms, Logics and Tools (Vol. 10460, pp. 367–381). Springer. https://doi.org/10.1007/978-3-319-63121-9_18 chicago: Chatterjee, Krishnendu, Laurent Doyen, and Thomas A Henzinger. “The Cost of Exactness in Quantitative Reachability.” In Models, Algorithms, Logics and Tools, edited by Luca Aceto, Giorgio Bacci, Anna Ingólfsdóttir, Axel Legay, and Radu Mardare, 10460:367–81. Theoretical Computer Science and General Issues. Springer, 2017. https://doi.org/10.1007/978-3-319-63121-9_18. ieee: K. Chatterjee, L. Doyen, and T. A. Henzinger, “The cost of exactness in quantitative reachability,” in Models, Algorithms, Logics and Tools, vol. 10460, L. Aceto, G. Bacci, A. Ingólfsdóttir, A. Legay, and R. Mardare, Eds. Springer, 2017, pp. 367–381. ista: 'Chatterjee K, Doyen L, Henzinger TA. 2017.The cost of exactness in quantitative reachability. In: Models, Algorithms, Logics and Tools. LNCS, vol. 10460, 367–381.' mla: Chatterjee, Krishnendu, et al. “The Cost of Exactness in Quantitative Reachability.” Models, Algorithms, Logics and Tools, edited by Luca Aceto et al., vol. 10460, Springer, 2017, pp. 367–81, doi:10.1007/978-3-319-63121-9_18. short: K. Chatterjee, L. Doyen, T.A. Henzinger, in:, L. Aceto, G. Bacci, A. Ingólfsdóttir, A. Legay, R. Mardare (Eds.), Models, Algorithms, Logics and Tools, Springer, 2017, pp. 367–381. date_created: 2018-12-11T11:47:34Z date_published: 2017-07-25T00:00:00Z date_updated: 2022-05-23T08:54:02Z day: '25' ddc: - '000' department: - _id: KrCh - _id: ToHe doi: 10.1007/978-3-319-63121-9_18 ec_funded: 1 editor: - first_name: Luca full_name: Aceto, Luca last_name: Aceto - first_name: Giorgio full_name: Bacci, Giorgio last_name: Bacci - first_name: Anna full_name: Ingólfsdóttir, Anna last_name: Ingólfsdóttir - first_name: Axel full_name: Legay, Axel last_name: Legay - first_name: Radu full_name: Mardare, Radu last_name: Mardare file: - access_level: open_access checksum: b2402766ec02c79801aac634bd8f9f6c content_type: application/pdf creator: dernst date_created: 2019-11-19T08:06:50Z date_updated: 2020-07-14T12:47:25Z file_id: '7048' file_name: 2017_ModelsAlgorithms_Chatterjee.pdf file_size: 192826 relation: main_file file_date_updated: 2020-07-14T12:47:25Z has_accepted_license: '1' intvolume: ' 10460' language: - iso: eng month: '07' oa: 1 oa_version: Submitted Version page: 367 - 381 project: - _id: 25F5A88A-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: S11402-N23 name: Moderne Concurrency Paradigms - _id: 25863FF4-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: S11407 name: Game Theory - _id: 25F42A32-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: Z211 name: The Wittgenstein Prize - _id: 2581B60A-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '279307' name: 'Quantitative Graph Games: Theory and Applications' - _id: 25892FC0-B435-11E9-9278-68D0E5697425 grant_number: ICT15-003 name: Efficient Algorithms for Computer Aided Verification publication: Models, Algorithms, Logics and Tools publication_identifier: isbn: - 978-3-319-63120-2 issn: - 0302-9743 publication_status: published publisher: Springer publist_id: '7170' quality_controlled: '1' scopus_import: '1' series_title: Theoretical Computer Science and General Issues status: public title: The cost of exactness in quantitative reachability type: book_chapter user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 10460 year: '2017' ... --- _id: '628' abstract: - lang: eng text: We consider the problem of developing automated techniques for solving recurrence relations to aid the expected-runtime analysis of programs. The motivation is that several classical textbook algorithms have quite efficient expected-runtime complexity, whereas the corresponding worst-case bounds are either inefficient (e.g., Quick-Sort), or completely ineffective (e.g., Coupon-Collector). Since the main focus of expected-runtime analysis is to obtain efficient bounds, we consider bounds that are either logarithmic, linear or almost-linear (O(log n), O(n), O(n · log n), respectively, where n represents the input size). Our main contribution is an efficient (simple linear-time algorithm) sound approach for deriving such expected-runtime bounds for the analysis of recurrence relations induced by randomized algorithms. The experimental results show that our approach can efficiently derive asymptotically optimal expected-runtime bounds for recurrences of classical randomized algorithms, including Randomized-Search, Quick-Sort, Quick-Select, Coupon-Collector, where the worst-case bounds are either inefficient (such as linear as compared to logarithmic expected-runtime complexity, or quadratic as compared to linear or almost-linear expected-runtime complexity), or ineffective. alternative_title: - LNCS author: - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Hongfei full_name: Fu, Hongfei last_name: Fu - first_name: Aniket full_name: Murhekar, Aniket last_name: Murhekar citation: ama: 'Chatterjee K, Fu H, Murhekar A. Automated recurrence analysis for almost linear expected runtime bounds. In: Majumdar R, Kunčak V, eds. Vol 10426. Springer; 2017:118-139. doi:10.1007/978-3-319-63387-9_6' apa: 'Chatterjee, K., Fu, H., & Murhekar, A. (2017). Automated recurrence analysis for almost linear expected runtime bounds. In R. Majumdar & V. Kunčak (Eds.) (Vol. 10426, pp. 118–139). Presented at the CAV: Computer Aided Verification, Heidelberg, Germany: Springer. https://doi.org/10.1007/978-3-319-63387-9_6' chicago: Chatterjee, Krishnendu, Hongfei Fu, and Aniket Murhekar. “Automated Recurrence Analysis for Almost Linear Expected Runtime Bounds.” edited by Rupak Majumdar and Viktor Kunčak, 10426:118–39. Springer, 2017. https://doi.org/10.1007/978-3-319-63387-9_6. ieee: 'K. Chatterjee, H. Fu, and A. Murhekar, “Automated recurrence analysis for almost linear expected runtime bounds,” presented at the CAV: Computer Aided Verification, Heidelberg, Germany, 2017, vol. 10426, pp. 118–139.' ista: 'Chatterjee K, Fu H, Murhekar A. 2017. Automated recurrence analysis for almost linear expected runtime bounds. CAV: Computer Aided Verification, LNCS, vol. 10426, 118–139.' mla: Chatterjee, Krishnendu, et al. Automated Recurrence Analysis for Almost Linear Expected Runtime Bounds. Edited by Rupak Majumdar and Viktor Kunčak, vol. 10426, Springer, 2017, pp. 118–39, doi:10.1007/978-3-319-63387-9_6. short: K. Chatterjee, H. Fu, A. Murhekar, in:, R. Majumdar, V. Kunčak (Eds.), Springer, 2017, pp. 118–139. conference: end_date: 2017-07-28 location: Heidelberg, Germany name: 'CAV: Computer Aided Verification' start_date: 2017-07-24 date_created: 2018-12-11T11:47:35Z date_published: 2017-01-01T00:00:00Z date_updated: 2021-01-12T08:06:55Z day: '01' department: - _id: KrCh doi: 10.1007/978-3-319-63387-9_6 ec_funded: 1 editor: - first_name: Rupak full_name: Majumdar, Rupak last_name: Majumdar - first_name: Viktor full_name: Kunčak, Viktor last_name: Kunčak intvolume: ' 10426' language: - iso: eng main_file_link: - open_access: '1' url: https://arxiv.org/abs/1705.00314 month: '01' oa: 1 oa_version: Submitted Version page: 118 - 139 project: - _id: 25892FC0-B435-11E9-9278-68D0E5697425 grant_number: ICT15-003 name: Efficient Algorithms for Computer Aided Verification - _id: 25863FF4-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: S11407 name: Game Theory - _id: 2581B60A-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '279307' name: 'Quantitative Graph Games: Theory and Applications' publication_identifier: isbn: - 978-331963386-2 publication_status: published publisher: Springer publist_id: '7166' quality_controlled: '1' scopus_import: 1 status: public title: Automated recurrence analysis for almost linear expected runtime bounds type: conference user_id: 4435EBFC-F248-11E8-B48F-1D18A9856A87 volume: 10426 year: '2017' ... --- _id: '645' abstract: - lang: eng text: Markov decision processes (MDPs) are standard models for probabilistic systems with non-deterministic behaviours. Long-run average rewards provide a mathematically elegant formalism for expressing long term performance. Value iteration (VI) is one of the simplest and most efficient algorithmic approaches to MDPs with other properties, such as reachability objectives. Unfortunately, a naive extension of VI does not work for MDPs with long-run average rewards, as there is no known stopping criterion. In this work our contributions are threefold. (1) We refute a conjecture related to stopping criteria for MDPs with long-run average rewards. (2) We present two practical algorithms for MDPs with long-run average rewards based on VI. First, we show that a combination of applying VI locally for each maximal end-component (MEC) and VI for reachability objectives can provide approximation guarantees. Second, extending the above approach with a simulation-guided on-demand variant of VI, we present an anytime algorithm that is able to deal with very large models. (3) Finally, we present experimental results showing that our methods significantly outperform the standard approaches on several benchmarks. alternative_title: - LNCS author: - first_name: Pranav full_name: Ashok, Pranav last_name: Ashok - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Przemyslaw full_name: Daca, Przemyslaw id: 49351290-F248-11E8-B48F-1D18A9856A87 last_name: Daca - first_name: Jan full_name: Kretinsky, Jan id: 44CEF464-F248-11E8-B48F-1D18A9856A87 last_name: Kretinsky orcid: 0000-0002-8122-2881 - first_name: Tobias full_name: Meggendorfer, Tobias last_name: Meggendorfer citation: ama: 'Ashok P, Chatterjee K, Daca P, Kretinsky J, Meggendorfer T. Value iteration for long run average reward in markov decision processes. In: Majumdar R, Kunčak V, eds. Vol 10426. Springer; 2017:201-221. doi:10.1007/978-3-319-63387-9_10' apa: 'Ashok, P., Chatterjee, K., Daca, P., Kretinsky, J., & Meggendorfer, T. (2017). Value iteration for long run average reward in markov decision processes. In R. Majumdar & V. Kunčak (Eds.) (Vol. 10426, pp. 201–221). Presented at the CAV: Computer Aided Verification, Heidelberg, Germany: Springer. https://doi.org/10.1007/978-3-319-63387-9_10' chicago: Ashok, Pranav, Krishnendu Chatterjee, Przemyslaw Daca, Jan Kretinsky, and Tobias Meggendorfer. “Value Iteration for Long Run Average Reward in Markov Decision Processes.” edited by Rupak Majumdar and Viktor Kunčak, 10426:201–21. Springer, 2017. https://doi.org/10.1007/978-3-319-63387-9_10. ieee: 'P. Ashok, K. Chatterjee, P. Daca, J. Kretinsky, and T. Meggendorfer, “Value iteration for long run average reward in markov decision processes,” presented at the CAV: Computer Aided Verification, Heidelberg, Germany, 2017, vol. 10426, pp. 201–221.' ista: 'Ashok P, Chatterjee K, Daca P, Kretinsky J, Meggendorfer T. 2017. Value iteration for long run average reward in markov decision processes. CAV: Computer Aided Verification, LNCS, vol. 10426, 201–221.' mla: Ashok, Pranav, et al. Value Iteration for Long Run Average Reward in Markov Decision Processes. Edited by Rupak Majumdar and Viktor Kunčak, vol. 10426, Springer, 2017, pp. 201–21, doi:10.1007/978-3-319-63387-9_10. short: P. Ashok, K. Chatterjee, P. Daca, J. Kretinsky, T. Meggendorfer, in:, R. Majumdar, V. Kunčak (Eds.), Springer, 2017, pp. 201–221. conference: end_date: 2017-07-28 location: Heidelberg, Germany name: 'CAV: Computer Aided Verification' start_date: 2017-07-24 date_created: 2018-12-11T11:47:41Z date_published: 2017-07-13T00:00:00Z date_updated: 2021-01-12T08:07:32Z day: '13' department: - _id: KrCh doi: 10.1007/978-3-319-63387-9_10 ec_funded: 1 editor: - first_name: Rupak full_name: Majumdar, Rupak last_name: Majumdar - first_name: Viktor full_name: Kunčak, Viktor last_name: Kunčak intvolume: ' 10426' language: - iso: eng main_file_link: - open_access: '1' url: https://arxiv.org/abs/1705.02326 month: '07' oa: 1 oa_version: Submitted Version page: 201 - 221 project: - _id: 25892FC0-B435-11E9-9278-68D0E5697425 grant_number: ICT15-003 name: Efficient Algorithms for Computer Aided Verification - _id: 25863FF4-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: S11407 name: Game Theory - _id: 2581B60A-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '279307' name: 'Quantitative Graph Games: Theory and Applications' publication_identifier: isbn: - 978-331963386-2 publication_status: published publisher: Springer publist_id: '7135' quality_controlled: '1' scopus_import: 1 status: public title: Value iteration for long run average reward in markov decision processes type: conference user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87 volume: 10426 year: '2017' ... --- _id: '6519' abstract: - lang: eng text: 'Graph games with omega-regular winning conditions provide a mathematical framework to analyze a wide range of problems in the analysis of reactive systems and programs (such as the synthesis of reactive systems, program repair, and the verification of branching time properties). Parity conditions are canonical forms to specify omega-regular winning conditions. Graph games with parity conditions are equivalent to mu-calculus model checking, and thus a very important algorithmic problem. Symbolic algorithms are of great significance because they provide scalable algorithms for the analysis of large finite-state systems, as well as algorithms for the analysis of infinite-state systems with finite quotient. A set-based symbolic algorithm uses the basic set operations and the one-step predecessor operators. We consider graph games with n vertices and parity conditions with c priorities (equivalently, a mu-calculus formula with c alternations of least and greatest fixed points). While many explicit algorithms exist for graph games with parity conditions, for set-based symbolic algorithms there are only two algorithms (notice that we use space to refer to the number of sets stored by a symbolic algorithm): (a) the basic algorithm that requires O(n^c) symbolic operations and linear space; and (b) an improved algorithm that requires O(n^{c/2+1}) symbolic operations but also O(n^{c/2+1}) space (i.e., exponential space). In this work we present two set-based symbolic algorithms for parity games: (a) our first algorithm requires O(n^{c/2+1}) symbolic operations and only requires linear space; and (b) developing on our first algorithm, we present an algorithm that requires O(n^{c/3+1}) symbolic operations and only linear space. We also present the first linear space set-based symbolic algorithm for parity games that requires at most a sub-exponential number of symbolic operations. ' article_number: '18' article_processing_charge: No author: - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Wolfgang full_name: Dvorák, Wolfgang last_name: Dvorák - first_name: Monika H full_name: Henzinger, Monika H id: 540c9bbd-f2de-11ec-812d-d04a5be85630 last_name: Henzinger orcid: 0000-0002-5008-6530 - first_name: Veronika full_name: Loitzenbauer, Veronika last_name: Loitzenbauer citation: ama: 'Chatterjee K, Dvorák W, Henzinger MH, Loitzenbauer V. Improved set-based symbolic algorithms for parity games. In: Vol 82. Schloss Dagstuhl -Leibniz-Zentrum fuer Informatik; 2017. doi:10.4230/LIPICS.CSL.2017.18' apa: 'Chatterjee, K., Dvorák, W., Henzinger, M. H., & Loitzenbauer, V. (2017). Improved set-based symbolic algorithms for parity games (Vol. 82). Presented at the CSL: Conference on Computer Science Logic, Stockholm, Sweden: Schloss Dagstuhl -Leibniz-Zentrum fuer Informatik. https://doi.org/10.4230/LIPICS.CSL.2017.18' chicago: Chatterjee, Krishnendu, Wolfgang Dvorák, Monika H Henzinger, and Veronika Loitzenbauer. “Improved Set-Based Symbolic Algorithms for Parity Games,” Vol. 82. Schloss Dagstuhl -Leibniz-Zentrum fuer Informatik, 2017. https://doi.org/10.4230/LIPICS.CSL.2017.18. ieee: 'K. Chatterjee, W. Dvorák, M. H. Henzinger, and V. Loitzenbauer, “Improved set-based symbolic algorithms for parity games,” presented at the CSL: Conference on Computer Science Logic, Stockholm, Sweden, 2017, vol. 82.' ista: 'Chatterjee K, Dvorák W, Henzinger MH, Loitzenbauer V. 2017. Improved set-based symbolic algorithms for parity games. CSL: Conference on Computer Science Logic vol. 82, 18.' mla: Chatterjee, Krishnendu, et al. Improved Set-Based Symbolic Algorithms for Parity Games. Vol. 82, 18, Schloss Dagstuhl -Leibniz-Zentrum fuer Informatik, 2017, doi:10.4230/LIPICS.CSL.2017.18. short: K. Chatterjee, W. Dvorák, M.H. Henzinger, V. Loitzenbauer, in:, Schloss Dagstuhl -Leibniz-Zentrum fuer Informatik, 2017. conference: end_date: 2017-08-24 location: Stockholm, Sweden name: 'CSL: Conference on Computer Science Logic' start_date: 2017-08-20 date_created: 2019-06-04T12:42:43Z date_published: 2017-08-01T00:00:00Z date_updated: 2023-02-14T10:08:25Z day: '01' ddc: - '004' department: - _id: KrCh doi: 10.4230/LIPICS.CSL.2017.18 ec_funded: 1 file: - access_level: open_access checksum: 7c2c9d09970af79026d7e37d9b632ef8 content_type: application/pdf creator: kschuh date_created: 2019-06-04T12:56:52Z date_updated: 2020-07-14T12:47:33Z file_id: '6520' file_name: 2017_LIPIcs-Chatterjee.pdf file_size: 710185 relation: main_file file_date_updated: 2020-07-14T12:47:33Z has_accepted_license: '1' intvolume: ' 82' language: - iso: eng month: '08' oa: 1 oa_version: Published Version project: - _id: 25832EC2-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: S 11407_N23 name: Rigorous Systems Engineering - _id: 2581B60A-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '279307' name: 'Quantitative Graph Games: Theory and Applications' - _id: 25892FC0-B435-11E9-9278-68D0E5697425 grant_number: ICT15-003 name: Efficient Algorithms for Computer Aided Verification publication_status: published publisher: Schloss Dagstuhl -Leibniz-Zentrum fuer Informatik quality_controlled: '1' scopus_import: '1' status: public title: Improved set-based symbolic algorithms for parity games tmp: 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) short: CC BY (3.0) type: conference user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 82 year: '2017' ... --- _id: '653' abstract: - lang: eng text: The extent of heterogeneity among driver gene mutations present in naturally occurring metastases - that is, treatment-naive metastatic disease - is largely unknown. To address this issue, we carried out 60× whole-genome sequencing of 26 metastases from four patients with pancreatic cancer. We found that identical mutations in known driver genes were present in every metastatic lesion for each patient studied. Passenger gene mutations, which do not have known or predicted functional consequences, accounted for all intratumoral heterogeneity. Even with respect to these passenger mutations, our analysis suggests that the genetic similarity among the founding cells of metastases was higher than that expected for any two cells randomly taken from a normal tissue. The uniformity of known driver gene mutations among metastases in the same patient has critical and encouraging implications for the success of future targeted therapies in advanced-stage disease. acknowledgement: 'We thank the Memorial Sloan Kettering Cancer Center Molecular Cytology core facility for immunohistochemistry staining. This work was supported by Office of Naval Research grant N00014-16-1-2914, the Bill and Melinda Gates Foundation (OPP1148627), and a gift from B. Wu and E. Larson (M.A.N.), National Institutes of Health grants CA179991 (C.A.I.-D. and I.B.), F31 CA180682 (A.P.M.-M.), CA43460 (B.V.), and P50 CA62924, the Monastra Foundation, the Virginia and D.K. Ludwig Fund for Cancer Research, the Lustgarten Foundation for Pancreatic Cancer Research, the Sol Goldman Center for Pancreatic Cancer Research, the Sol Goldman Sequencing Center, ERC Start grant 279307: Graph Games (J.G.R., D.K., and C.K.), Austrian Science Fund (FWF) grant P23499-N23 (J.G.R., D.K., and C.K.), and FWF NFN grant S11407-N23 RiSE/SHiNE (J.G.R., D.K., and C.K.).' article_processing_charge: No article_type: original author: - first_name: Alvin full_name: Makohon Moore, Alvin last_name: Makohon Moore - first_name: Ming full_name: Zhang, Ming last_name: Zhang - first_name: Johannes full_name: Reiter, Johannes id: 4A918E98-F248-11E8-B48F-1D18A9856A87 last_name: Reiter orcid: 0000-0002-0170-7353 - first_name: Ivana full_name: Božić, Ivana last_name: Božić - first_name: Benjamin full_name: Allen, Benjamin last_name: Allen - first_name: Deepanjan full_name: Kundu, Deepanjan id: 1d4c0f4f-e8a3-11ec-a351-e36772758c45 last_name: Kundu - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Fay full_name: Wong, Fay last_name: Wong - first_name: Yuchen full_name: Jiao, Yuchen last_name: Jiao - first_name: Zachary full_name: Kohutek, Zachary last_name: Kohutek - first_name: Jungeui full_name: Hong, Jungeui last_name: Hong - first_name: Marc full_name: Attiyeh, Marc last_name: Attiyeh - first_name: Breanna full_name: Javier, Breanna last_name: Javier - first_name: Laura full_name: Wood, Laura last_name: Wood - first_name: Ralph full_name: Hruban, Ralph last_name: Hruban - first_name: Martin full_name: Nowak, Martin last_name: Nowak - first_name: Nickolas full_name: Papadopoulos, Nickolas last_name: Papadopoulos - first_name: Kenneth full_name: Kinzler, Kenneth last_name: Kinzler - first_name: Bert full_name: Vogelstein, Bert last_name: Vogelstein - first_name: Christine full_name: Iacobuzio Donahue, Christine last_name: Iacobuzio Donahue citation: ama: Makohon Moore A, Zhang M, Reiter J, et al. Limited heterogeneity of known driver gene mutations among the metastases of individual patients with pancreatic cancer. Nature Genetics. 2017;49(3):358-366. doi:10.1038/ng.3764 apa: Makohon Moore, A., Zhang, M., Reiter, J., Božić, I., Allen, B., Kundu, D., … Iacobuzio Donahue, C. (2017). Limited heterogeneity of known driver gene mutations among the metastases of individual patients with pancreatic cancer. Nature Genetics. Nature Publishing Group. https://doi.org/10.1038/ng.3764 chicago: Makohon Moore, Alvin, Ming Zhang, Johannes Reiter, Ivana Božić, Benjamin Allen, Deepanjan Kundu, Krishnendu Chatterjee, et al. “Limited Heterogeneity of Known Driver Gene Mutations among the Metastases of Individual Patients with Pancreatic Cancer.” Nature Genetics. Nature Publishing Group, 2017. https://doi.org/10.1038/ng.3764. ieee: A. Makohon Moore et al., “Limited heterogeneity of known driver gene mutations among the metastases of individual patients with pancreatic cancer,” Nature Genetics, vol. 49, no. 3. Nature Publishing Group, pp. 358–366, 2017. ista: Makohon Moore A, Zhang M, Reiter J, Božić I, Allen B, Kundu D, Chatterjee K, Wong F, Jiao Y, Kohutek Z, Hong J, Attiyeh M, Javier B, Wood L, Hruban R, Nowak M, Papadopoulos N, Kinzler K, Vogelstein B, Iacobuzio Donahue C. 2017. Limited heterogeneity of known driver gene mutations among the metastases of individual patients with pancreatic cancer. Nature Genetics. 49(3), 358–366. mla: Makohon Moore, Alvin, et al. “Limited Heterogeneity of Known Driver Gene Mutations among the Metastases of Individual Patients with Pancreatic Cancer.” Nature Genetics, vol. 49, no. 3, Nature Publishing Group, 2017, pp. 358–66, doi:10.1038/ng.3764. short: A. Makohon Moore, M. Zhang, J. Reiter, I. Božić, B. Allen, D. Kundu, K. Chatterjee, F. Wong, Y. Jiao, Z. Kohutek, J. Hong, M. Attiyeh, B. Javier, L. Wood, R. Hruban, M. Nowak, N. Papadopoulos, K. Kinzler, B. Vogelstein, C. Iacobuzio Donahue, Nature Genetics 49 (2017) 358–366. date_created: 2018-12-11T11:47:43Z date_published: 2017-03-01T00:00:00Z date_updated: 2022-06-10T09:55:08Z day: '01' ddc: - '000' department: - _id: KrCh doi: 10.1038/ng.3764 ec_funded: 1 external_id: pmid: - '28092682' file: - access_level: open_access checksum: e442dc3b7420a36ec805e9bb45cc1a2e content_type: application/pdf creator: dernst date_created: 2019-11-19T08:13:50Z date_updated: 2020-07-14T12:47:33Z file_id: '7050' file_name: 2017_NatureGenetics_Makohon.pdf file_size: 908099 relation: main_file file_date_updated: 2020-07-14T12:47:33Z has_accepted_license: '1' intvolume: ' 49' issue: '3' language: - iso: eng month: '03' oa: 1 oa_version: Submitted Version page: 358 - 366 pmid: 1 project: - _id: 2581B60A-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '279307' name: 'Quantitative Graph Games: Theory and Applications' - _id: 2584A770-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: P 23499-N23 name: Modern Graph Algorithmic Techniques in Formal Verification - _id: 25863FF4-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: S11407 name: Game Theory publication: Nature Genetics publication_identifier: issn: - '10614036' publication_status: published publisher: Nature Publishing Group publist_id: '7092' quality_controlled: '1' scopus_import: '1' status: public title: Limited heterogeneity of known driver gene mutations among the metastases of individual patients with pancreatic cancer type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 49 year: '2017' ... --- _id: '671' abstract: - lang: eng text: Humans routinely use conditionally cooperative strategies when interacting in repeated social dilemmas. They are more likely to cooperate if others cooperated before, and are ready to retaliate if others defected. To capture the emergence of reciprocity, most previous models consider subjects who can only choose from a restricted set of representative strategies, or who react to the outcome of the very last round only. As players memorize more rounds, the dimension of the strategy space increases exponentially. This increasing computational complexity renders simulations for individuals with higher cognitive abilities infeasible, especially if multiplayer interactions are taken into account. Here, we take an axiomatic approach instead. We propose several properties that a robust cooperative strategy for a repeated multiplayer dilemma should have. These properties naturally lead to a unique class of cooperative strategies, which contains the classical Win-Stay Lose-Shift rule as a special case. A comprehensive numerical analysis for the prisoner's dilemma and for the public goods game suggests that strategies of this class readily evolve across various memory-n spaces. Our results reveal that successful strategies depend not only on how cooperative others were in the past but also on the respective context of cooperation. article_processing_charge: Yes (in subscription journal) author: - first_name: Christian full_name: Hilbe, Christian id: 2FDF8F3C-F248-11E8-B48F-1D18A9856A87 last_name: Hilbe orcid: 0000-0001-5116-955X - first_name: Vaquero full_name: Martinez, Vaquero last_name: Martinez - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Martin full_name: Nowak, Martin last_name: Nowak citation: ama: Hilbe C, Martinez V, Chatterjee K, Nowak M. Memory-n strategies of direct reciprocity. PNAS. 2017;114(18):4715-4720. doi:10.1073/pnas.1621239114 apa: Hilbe, C., Martinez, V., Chatterjee, K., & Nowak, M. (2017). Memory-n strategies of direct reciprocity. PNAS. National Academy of Sciences. https://doi.org/10.1073/pnas.1621239114 chicago: Hilbe, Christian, Vaquero Martinez, Krishnendu Chatterjee, and Martin Nowak. “Memory-n Strategies of Direct Reciprocity.” PNAS. National Academy of Sciences, 2017. https://doi.org/10.1073/pnas.1621239114. ieee: C. Hilbe, V. Martinez, K. Chatterjee, and M. Nowak, “Memory-n strategies of direct reciprocity,” PNAS, vol. 114, no. 18. National Academy of Sciences, pp. 4715–4720, 2017. ista: Hilbe C, Martinez V, Chatterjee K, Nowak M. 2017. Memory-n strategies of direct reciprocity. PNAS. 114(18), 4715–4720. mla: Hilbe, Christian, et al. “Memory-n Strategies of Direct Reciprocity.” PNAS, vol. 114, no. 18, National Academy of Sciences, 2017, pp. 4715–20, doi:10.1073/pnas.1621239114. short: C. Hilbe, V. Martinez, K. Chatterjee, M. Nowak, PNAS 114 (2017) 4715–4720. date_created: 2018-12-11T11:47:50Z date_published: 2017-05-02T00:00:00Z date_updated: 2021-01-12T08:08:37Z day: '02' department: - _id: KrCh doi: 10.1073/pnas.1621239114 ec_funded: 1 external_id: pmid: - '28420786' intvolume: ' 114' issue: '18' language: - iso: eng main_file_link: - open_access: '1' url: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5422766/ month: '05' oa: 1 oa_version: Published Version page: 4715 - 4720 pmid: 1 project: - _id: 2581B60A-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '279307' name: 'Quantitative Graph Games: Theory and Applications' - _id: 2584A770-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: P 23499-N23 name: Modern Graph Algorithmic Techniques in Formal Verification - _id: 25863FF4-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: S11407 name: Game Theory publication: PNAS publication_identifier: issn: - '00278424' publication_status: published publisher: National Academy of Sciences publist_id: '7053' quality_controlled: '1' scopus_import: 1 status: public title: Memory-n strategies of direct reciprocity type: journal_article user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87 volume: 114 year: '2017' ... --- _id: '681' abstract: - lang: eng text: Two-player games on graphs provide the theoretical framework for many important problems such as reactive synthesis. While the traditional study of two-player zero-sum games has been extended to multi-player games with several notions of equilibria, they are decidable only for perfect-information games, whereas several applications require imperfect-information. In this paper we propose a new notion of equilibria, called doomsday equilibria, which is a strategy profile where all players satisfy their own objective, and if any coalition of players deviates and violates even one of the players' objective, then the objective of every player is violated. We present algorithms and complexity results for deciding the existence of doomsday equilibria for various classes of ω-regular objectives, both for imperfect-information games, and for perfect-information games. We provide optimal complexity bounds for imperfect-information games, and in most cases for perfect-information games. article_processing_charge: No article_type: original author: - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Laurent full_name: Doyen, Laurent last_name: Doyen - first_name: Emmanuel full_name: Filiot, Emmanuel last_name: Filiot - first_name: Jean full_name: Raskin, Jean last_name: Raskin citation: ama: Chatterjee K, Doyen L, Filiot E, Raskin J. Doomsday equilibria for omega-regular games. Information and Computation. 2017;254:296-315. doi:10.1016/j.ic.2016.10.012 apa: Chatterjee, K., Doyen, L., Filiot, E., & Raskin, J. (2017). Doomsday equilibria for omega-regular games. Information and Computation. Elsevier. https://doi.org/10.1016/j.ic.2016.10.012 chicago: Chatterjee, Krishnendu, Laurent Doyen, Emmanuel Filiot, and Jean Raskin. “Doomsday Equilibria for Omega-Regular Games.” Information and Computation. Elsevier, 2017. https://doi.org/10.1016/j.ic.2016.10.012. ieee: K. Chatterjee, L. Doyen, E. Filiot, and J. Raskin, “Doomsday equilibria for omega-regular games,” Information and Computation, vol. 254. Elsevier, pp. 296–315, 2017. ista: Chatterjee K, Doyen L, Filiot E, Raskin J. 2017. Doomsday equilibria for omega-regular games. Information and Computation. 254, 296–315. mla: Chatterjee, Krishnendu, et al. “Doomsday Equilibria for Omega-Regular Games.” Information and Computation, vol. 254, Elsevier, 2017, pp. 296–315, doi:10.1016/j.ic.2016.10.012. short: K. Chatterjee, L. Doyen, E. Filiot, J. Raskin, Information and Computation 254 (2017) 296–315. date_created: 2018-12-11T11:47:53Z date_published: 2017-06-01T00:00:00Z date_updated: 2023-02-21T16:06:02Z day: '01' department: - _id: KrCh doi: 10.1016/j.ic.2016.10.012 ec_funded: 1 external_id: arxiv: - '1311.3238' intvolume: ' 254' language: - iso: eng main_file_link: - open_access: '1' url: https://arxiv.org/abs/1311.3238 month: '06' oa: 1 oa_version: Submitted Version page: 296 - 315 project: - _id: 2584A770-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: P 23499-N23 name: Modern Graph Algorithmic Techniques in Formal Verification - _id: 25863FF4-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: S11407 name: Game Theory - _id: 2581B60A-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '279307' name: 'Quantitative Graph Games: Theory and Applications' - _id: 25681D80-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '291734' name: International IST Postdoc Fellowship Programme publication: Information and Computation publication_identifier: issn: - '08905401' publication_status: published publisher: Elsevier publist_id: '7036' quality_controlled: '1' related_material: record: - id: '10885' relation: earlier_version status: public scopus_import: '1' status: public title: Doomsday equilibria for omega-regular games type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 254 year: '2017' ... --- _id: '684' abstract: - lang: eng text: We generalize winning conditions in two-player games by adding a structural acceptance condition called obligations. Obligations are orthogonal to the linear winning conditions that define whether a play is winning. Obligations are a declaration that player 0 can achieve a certain value from a configuration. If the obligation is met, the value of that configuration for player 0 is 1. We define the value in such games and show that obligation games are determined. For Markov chains with Borel objectives and obligations, and finite turn-based stochastic parity games with obligations we give an alternative and simpler characterization of the value function. Based on this simpler definition we show that the decision problem of winning finite turn-based stochastic parity games with obligations is in NP∩co-NP. We also show that obligation games provide a game framework for reasoning about p-automata. © 2017 The Association for Symbolic Logic. article_processing_charge: No author: - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Nir full_name: Piterman, Nir last_name: Piterman citation: ama: Chatterjee K, Piterman N. Obligation blackwell games and p-automata. Journal of Symbolic Logic. 2017;82(2):420-452. doi:10.1017/jsl.2016.71 apa: Chatterjee, K., & Piterman, N. (2017). Obligation blackwell games and p-automata. Journal of Symbolic Logic. Cambridge University Press. https://doi.org/10.1017/jsl.2016.71 chicago: Chatterjee, Krishnendu, and Nir Piterman. “Obligation Blackwell Games and P-Automata.” Journal of Symbolic Logic. Cambridge University Press, 2017. https://doi.org/10.1017/jsl.2016.71. ieee: K. Chatterjee and N. Piterman, “Obligation blackwell games and p-automata,” Journal of Symbolic Logic, vol. 82, no. 2. Cambridge University Press, pp. 420–452, 2017. ista: Chatterjee K, Piterman N. 2017. Obligation blackwell games and p-automata. Journal of Symbolic Logic. 82(2), 420–452. mla: Chatterjee, Krishnendu, and Nir Piterman. “Obligation Blackwell Games and P-Automata.” Journal of Symbolic Logic, vol. 82, no. 2, Cambridge University Press, 2017, pp. 420–52, doi:10.1017/jsl.2016.71. short: K. Chatterjee, N. Piterman, Journal of Symbolic Logic 82 (2017) 420–452. date_created: 2018-12-11T11:47:54Z date_published: 2017-06-01T00:00:00Z date_updated: 2021-04-16T12:10:53Z day: '01' department: - _id: KrCh doi: 10.1017/jsl.2016.71 intvolume: ' 82' issue: '2' language: - iso: eng main_file_link: - open_access: '1' url: https://arxiv.org/abs/1206.5174 month: '06' oa: 1 oa_version: Submitted Version page: 420 - 452 publication: Journal of Symbolic Logic publication_identifier: eissn: - 1943-5886 issn: - 0022-4812 publication_status: published publisher: Cambridge University Press publist_id: '7026' quality_controlled: '1' scopus_import: '1' status: public title: Obligation blackwell games and p-automata type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 82 year: '2017' ... --- _id: '699' abstract: - lang: eng text: 'In antagonistic symbioses, such as host–parasite interactions, one population’s success is the other’s loss. In mutualistic symbioses, such as division of labor, both parties can gain, but they might have different preferences over the possible mutualistic arrangements. The rates of evolution of the two populations in a symbiosis are important determinants of which population will be more successful: Faster evolution is thought to be favored in antagonistic symbioses (the “Red Queen effect”), but disfavored in certain mutualistic symbioses (the “Red King effect”). However, it remains unclear which biological parameters drive these effects. Here, we analyze the effects of the various determinants of evolutionary rate: generation time, mutation rate, population size, and the intensity of natural selection. Our main results hold for the case where mutation is infrequent. Slower evolution causes a long-term advantage in an important class of mutualistic interactions. Surprisingly, less intense selection is the strongest driver of this Red King effect, whereas relative mutation rates and generation times have little effect. In antagonistic interactions, faster evolution by any means is beneficial. Our results provide insight into the demographic evolution of symbionts. ' author: - first_name: Carl full_name: Veller, Carl last_name: Veller - first_name: Laura full_name: Hayward, Laura last_name: Hayward - first_name: Martin full_name: Nowak, Martin last_name: Nowak - first_name: Christian full_name: Hilbe, Christian id: 2FDF8F3C-F248-11E8-B48F-1D18A9856A87 last_name: Hilbe orcid: 0000-0001-5116-955X citation: ama: Veller C, Hayward L, Nowak M, Hilbe C. The red queen and king in finite populations. PNAS. 2017;114(27):E5396-E5405. doi:10.1073/pnas.1702020114 apa: Veller, C., Hayward, L., Nowak, M., & Hilbe, C. (2017). The red queen and king in finite populations. PNAS. National Academy of Sciences. https://doi.org/10.1073/pnas.1702020114 chicago: Veller, Carl, Laura Hayward, Martin Nowak, and Christian Hilbe. “The Red Queen and King in Finite Populations.” PNAS. National Academy of Sciences, 2017. https://doi.org/10.1073/pnas.1702020114. ieee: C. Veller, L. Hayward, M. Nowak, and C. Hilbe, “The red queen and king in finite populations,” PNAS, vol. 114, no. 27. National Academy of Sciences, pp. E5396–E5405, 2017. ista: Veller C, Hayward L, Nowak M, Hilbe C. 2017. The red queen and king in finite populations. PNAS. 114(27), E5396–E5405. mla: Veller, Carl, et al. “The Red Queen and King in Finite Populations.” PNAS, vol. 114, no. 27, National Academy of Sciences, 2017, pp. E5396–405, doi:10.1073/pnas.1702020114. short: C. Veller, L. Hayward, M. Nowak, C. Hilbe, PNAS 114 (2017) E5396–E5405. date_created: 2018-12-11T11:48:00Z date_published: 2017-07-03T00:00:00Z date_updated: 2021-01-12T08:11:21Z day: '03' department: - _id: KrCh doi: 10.1073/pnas.1702020114 external_id: pmid: - '28630336' intvolume: ' 114' issue: '27' language: - iso: eng main_file_link: - open_access: '1' url: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5502615/ month: '07' oa: 1 oa_version: Submitted Version page: E5396 - E5405 pmid: 1 publication: PNAS publication_identifier: issn: - '00278424' publication_status: published publisher: National Academy of Sciences publist_id: '7002' quality_controlled: '1' scopus_import: 1 status: public title: The red queen and king in finite populations type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 114 year: '2017' ... --- _id: '711' abstract: - lang: eng text: Nested weighted automata (NWA) present a robust and convenient automata-theoretic formalism for quantitative specifications. Previous works have considered NWA that processed input words only in the forward direction. It is natural to allow the automata to process input words backwards as well, for example, to measure the maximal or average time between a response and the preceding request. We therefore introduce and study bidirectional NWA that can process input words in both directions. First, we show that bidirectional NWA can express interesting quantitative properties that are not expressible by forward-only NWA. Second, for the fundamental decision problems of emptiness and universality, we establish decidability and complexity results for the new framework which match the best-known results for the special case of forward-only NWA. Thus, for NWA, the increased expressiveness of bidirectionality is achieved at no additional computational complexity. This is in stark contrast to the unweighted case, where bidirectional finite automata are no more expressive but exponentially more succinct than their forward-only counterparts. alternative_title: - LIPIcs article_number: '5' author: - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Thomas A full_name: Henzinger, Thomas A id: 40876CD8-F248-11E8-B48F-1D18A9856A87 last_name: Henzinger orcid: 0000−0002−2985−7724 - first_name: Jan full_name: Otop, Jan last_name: Otop citation: ama: 'Chatterjee K, Henzinger TA, Otop J. Bidirectional nested weighted automata. In: Vol 85. Schloss Dagstuhl - Leibniz-Zentrum für Informatik; 2017. doi:10.4230/LIPIcs.CONCUR.2017.5' apa: 'Chatterjee, K., Henzinger, T. A., & Otop, J. (2017). Bidirectional nested weighted automata (Vol. 85). Presented at the 28th International Conference on Concurrency Theory, CONCUR, Berlin, Germany: Schloss Dagstuhl - Leibniz-Zentrum für Informatik. https://doi.org/10.4230/LIPIcs.CONCUR.2017.5' chicago: Chatterjee, Krishnendu, Thomas A Henzinger, and Jan Otop. “Bidirectional Nested Weighted Automata,” Vol. 85. Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2017. https://doi.org/10.4230/LIPIcs.CONCUR.2017.5. ieee: K. Chatterjee, T. A. Henzinger, and J. Otop, “Bidirectional nested weighted automata,” presented at the 28th International Conference on Concurrency Theory, CONCUR, Berlin, Germany, 2017, vol. 85. ista: Chatterjee K, Henzinger TA, Otop J. 2017. Bidirectional nested weighted automata. 28th International Conference on Concurrency Theory, CONCUR, LIPIcs, vol. 85, 5. mla: Chatterjee, Krishnendu, et al. Bidirectional Nested Weighted Automata. Vol. 85, 5, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2017, doi:10.4230/LIPIcs.CONCUR.2017.5. short: K. Chatterjee, T.A. Henzinger, J. Otop, in:, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2017. conference: end_date: 2017-09-08 location: Berlin, Germany name: 28th International Conference on Concurrency Theory, CONCUR start_date: 2017-09-05 date_created: 2018-12-11T11:48:04Z date_published: 2017-08-01T00:00:00Z date_updated: 2021-01-12T08:11:53Z day: '01' ddc: - '004' - '005' department: - _id: KrCh - _id: ToHe doi: 10.4230/LIPIcs.CONCUR.2017.5 file: - access_level: open_access checksum: d2bda4783821a6358333fe27f11f4737 content_type: application/pdf creator: system date_created: 2018-12-12T10:08:02Z date_updated: 2020-07-14T12:47:49Z file_id: '4661' file_name: IST-2017-886-v1+1_LIPIcs-CONCUR-2017-5.pdf file_size: 570294 relation: main_file file_date_updated: 2020-07-14T12:47:49Z has_accepted_license: '1' intvolume: ' 85' language: - iso: eng month: '08' oa: 1 oa_version: Published Version publication_identifier: issn: - '18688969' publication_status: published publisher: Schloss Dagstuhl - Leibniz-Zentrum für Informatik publist_id: '6976' pubrep_id: '886' quality_controlled: '1' scopus_import: 1 status: public title: Bidirectional nested weighted automata tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: conference user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87 volume: 85 year: '2017' ... --- _id: '716' abstract: - lang: eng text: 'Two-player games on graphs are central in many problems in formal verification and program analysis, such as synthesis and verification of open systems. In this work, we consider solving recursive game graphs (or pushdown game graphs) that model the control flow of sequential programs with recursion.While pushdown games have been studied before with qualitative objectives-such as reachability and ?-regular objectives- in this work, we study for the first time such games with the most well-studied quantitative objective, the mean-payoff objective. In pushdown games, two types of strategies are relevant: (1) global strategies, which depend on the entire global history; and (2) modular strategies, which have only local memory and thus do not depend on the context of invocation but rather only on the history of the current invocation of the module. Our main results are as follows: (1) One-player pushdown games with mean-payoff objectives under global strategies are decidable in polynomial time. (2) Two-player pushdown games with mean-payoff objectives under global strategies are undecidable. (3) One-player pushdown games with mean-payoff objectives under modular strategies are NP-hard. (4) Two-player pushdown games with mean-payoff objectives under modular strategies can be solved in NP (i.e., both one-player and two-player pushdown games with mean-payoff objectives under modular strategies are NP-complete). We also establish the optimal strategy complexity by showing that global strategies for mean-payoff objectives require infinite memory even in one-player pushdown games and memoryless modular strategies are sufficient in two-player pushdown games. Finally, we also show that all the problems have the same complexity if the stack boundedness condition is added, where along with the mean-payoff objective the player must also ensure that the stack height is bounded.' article_type: original author: - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Yaron full_name: Velner, Yaron last_name: Velner citation: ama: Chatterjee K, Velner Y. The complexity of mean-payoff pushdown games. Journal of the ACM. 2017;64(5):34. doi:10.1145/3121408 apa: Chatterjee, K., & Velner, Y. (2017). The complexity of mean-payoff pushdown games. Journal of the ACM. ACM. https://doi.org/10.1145/3121408 chicago: Chatterjee, Krishnendu, and Yaron Velner. “The Complexity of Mean-Payoff Pushdown Games.” Journal of the ACM. ACM, 2017. https://doi.org/10.1145/3121408. ieee: K. Chatterjee and Y. Velner, “The complexity of mean-payoff pushdown games,” Journal of the ACM, vol. 64, no. 5. ACM, p. 34, 2017. ista: Chatterjee K, Velner Y. 2017. The complexity of mean-payoff pushdown games. Journal of the ACM. 64(5), 34. mla: Chatterjee, Krishnendu, and Yaron Velner. “The Complexity of Mean-Payoff Pushdown Games.” Journal of the ACM, vol. 64, no. 5, ACM, 2017, p. 34, doi:10.1145/3121408. short: K. Chatterjee, Y. Velner, Journal of the ACM 64 (2017) 34. date_created: 2018-12-11T11:48:06Z date_published: 2017-09-01T00:00:00Z date_updated: 2021-01-12T08:12:08Z day: '01' department: - _id: KrCh doi: 10.1145/3121408 ec_funded: 1 external_id: arxiv: - '1201.2829' intvolume: ' 64' issue: '5' language: - iso: eng main_file_link: - open_access: '1' url: https://arxiv.org/abs/1201.2829 month: '09' oa: 1 oa_version: Preprint page: '34' project: - _id: 2584A770-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: P 23499-N23 name: Modern Graph Algorithmic Techniques in Formal Verification - _id: 25863FF4-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: S11407 name: Game Theory - _id: 2581B60A-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '279307' name: 'Quantitative Graph Games: Theory and Applications' publication: Journal of the ACM publication_identifier: issn: - '00045411' publication_status: published publisher: ACM publist_id: '6964' quality_controlled: '1' scopus_import: 1 status: public title: The complexity of mean-payoff pushdown games type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 64 year: '2017' ... --- _id: '717' abstract: - lang: eng text: 'We consider finite-state and recursive game graphs with multidimensional mean-payoff objectives. In recursive games two types of strategies are relevant: global strategies and modular strategies. Our contributions are: (1) We show that finite-state multidimensional mean-payoff games can be solved in polynomial time if the number of dimensions and the maximal absolute value of weights are fixed; whereas for arbitrary dimensions the problem is coNP-complete. (2) We show that one-player recursive games with multidimensional mean-payoff objectives can be solved in polynomial time. Both above algorithms are based on hyperplane separation technique. (3) For recursive games we show that under modular strategies the multidimensional problem is undecidable. We show that if the number of modules, exits, and the maximal absolute value of the weights are fixed, then one-dimensional recursive mean-payoff games under modular strategies can be solved in polynomial time, whereas for unbounded number of exits or modules the problem is NP-hard.' acknowledgement: 'The research was supported by Austrian Science Fund (FWF) Grant No. P 23499-N23, FWF NFN Grant No. S11407-N23 (RiSE), ERC Start grant (279307: Graph Games), Microsoft faculty fellows award, the RICH Model Toolkit (ICT COST Action IC0901), and was carried out in partial fulfillment of the requirements for the Ph.D. degree of the second author.' author: - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Yaron full_name: Velner, Yaron last_name: Velner citation: ama: Chatterjee K, Velner Y. Hyperplane separation technique for multidimensional mean-payoff games. Journal of Computer and System Sciences. 2017;88:236-259. doi:10.1016/j.jcss.2017.04.005 apa: Chatterjee, K., & Velner, Y. (2017). Hyperplane separation technique for multidimensional mean-payoff games. Journal of Computer and System Sciences. Academic Press. https://doi.org/10.1016/j.jcss.2017.04.005 chicago: Chatterjee, Krishnendu, and Yaron Velner. “Hyperplane Separation Technique for Multidimensional Mean-Payoff Games.” Journal of Computer and System Sciences. Academic Press, 2017. https://doi.org/10.1016/j.jcss.2017.04.005. ieee: K. Chatterjee and Y. Velner, “Hyperplane separation technique for multidimensional mean-payoff games,” Journal of Computer and System Sciences, vol. 88. Academic Press, pp. 236–259, 2017. ista: Chatterjee K, Velner Y. 2017. Hyperplane separation technique for multidimensional mean-payoff games. Journal of Computer and System Sciences. 88, 236–259. mla: Chatterjee, Krishnendu, and Yaron Velner. “Hyperplane Separation Technique for Multidimensional Mean-Payoff Games.” Journal of Computer and System Sciences, vol. 88, Academic Press, 2017, pp. 236–59, doi:10.1016/j.jcss.2017.04.005. short: K. Chatterjee, Y. Velner, Journal of Computer and System Sciences 88 (2017) 236–259. date_created: 2018-12-11T11:48:07Z date_published: 2017-09-01T00:00:00Z date_updated: 2023-02-23T10:38:15Z day: '01' department: - _id: KrCh doi: 10.1016/j.jcss.2017.04.005 ec_funded: 1 intvolume: ' 88' language: - iso: eng main_file_link: - open_access: '1' url: https://arxiv.org/abs/1210.3141 month: '09' oa: 1 oa_version: Preprint page: 236 - 259 project: - _id: 2584A770-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: P 23499-N23 name: Modern Graph Algorithmic Techniques in Formal Verification - _id: 25863FF4-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: S11407 name: Game Theory - _id: 2581B60A-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '279307' name: 'Quantitative Graph Games: Theory and Applications' - _id: 2587B514-B435-11E9-9278-68D0E5697425 name: Microsoft Research Faculty Fellowship publication: Journal of Computer and System Sciences publication_status: published publisher: Academic Press publist_id: '6963' quality_controlled: '1' related_material: record: - id: '2329' relation: earlier_version status: public scopus_import: 1 status: public title: Hyperplane separation technique for multidimensional mean-payoff games type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 88 year: '2017' ... --- _id: '719' abstract: - lang: eng text: 'The ubiquity of computation in modern machines and devices imposes a need to assert the correctness of their behavior. Especially in the case of safety-critical systems, their designers need to take measures that enforce their safe operation. Formal methods has emerged as a research field that addresses this challenge: by rigorously proving that all system executions adhere to their specifications, the correctness of an implementation under concern can be assured. To achieve this goal, a plethora of techniques are nowadays available, all of which are optimized for different system types and application domains.' author: - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Rüdiger full_name: Ehlers, Rüdiger last_name: Ehlers citation: ama: 'Chatterjee K, Ehlers R. Special issue: Synthesis and SYNT 2014. Acta Informatica. 2017;54(6):543-544. doi:10.1007/s00236-017-0299-0' apa: 'Chatterjee, K., & Ehlers, R. (2017). Special issue: Synthesis and SYNT 2014. Acta Informatica. Springer. https://doi.org/10.1007/s00236-017-0299-0' chicago: 'Chatterjee, Krishnendu, and Rüdiger Ehlers. “Special Issue: Synthesis and SYNT 2014.” Acta Informatica. Springer, 2017. https://doi.org/10.1007/s00236-017-0299-0.' ieee: 'K. Chatterjee and R. Ehlers, “Special issue: Synthesis and SYNT 2014,” Acta Informatica, vol. 54, no. 6. Springer, pp. 543–544, 2017.' ista: 'Chatterjee K, Ehlers R. 2017. Special issue: Synthesis and SYNT 2014. Acta Informatica. 54(6), 543–544.' mla: 'Chatterjee, Krishnendu, and Rüdiger Ehlers. “Special Issue: Synthesis and SYNT 2014.” Acta Informatica, vol. 54, no. 6, Springer, 2017, pp. 543–44, doi:10.1007/s00236-017-0299-0.' short: K. Chatterjee, R. Ehlers, Acta Informatica 54 (2017) 543–544. date_created: 2018-12-11T11:48:07Z date_published: 2017-09-01T00:00:00Z date_updated: 2021-01-12T08:12:18Z day: '01' department: - _id: KrCh doi: 10.1007/s00236-017-0299-0 intvolume: ' 54' issue: '6' language: - iso: eng month: '09' oa_version: None page: 543 - 544 publication: Acta Informatica publication_identifier: issn: - '00015903' publication_status: published publisher: Springer publist_id: '6961' quality_controlled: '1' scopus_import: 1 status: public title: 'Special issue: Synthesis and SYNT 2014' type: journal_article user_id: 4435EBFC-F248-11E8-B48F-1D18A9856A87 volume: 54 year: '2017' ... --- _id: '13160' abstract: - lang: eng text: "Transforming deterministic ω\r\n-automata into deterministic parity automata is traditionally done using variants of appearance records. We present a more efficient variant of this approach, tailored to Rabin automata, and several optimizations applicable to all appearance records. We compare the methods experimentally and find out that our method produces smaller automata than previous approaches. Moreover, the experiments demonstrate the potential of our method for LTL synthesis, using LTL-to-Rabin translators. It leads to significantly smaller parity automata when compared to state-of-the-art approaches on complex formulae." acknowledgement: This work is partially funded by the DFG project “Verified Model Checkers” and by the Czech Science Foundation, grant No. P202/12/G061. alternative_title: - LNCS article_processing_charge: No author: - first_name: Jan full_name: Kretinsky, Jan id: 44CEF464-F248-11E8-B48F-1D18A9856A87 last_name: Kretinsky orcid: 0000-0002-8122-2881 - first_name: Tobias full_name: Meggendorfer, Tobias id: b21b0c15-30a2-11eb-80dc-f13ca25802e1 last_name: Meggendorfer orcid: 0000-0002-1712-2165 - first_name: Clara full_name: Waldmann, Clara last_name: Waldmann - first_name: Maximilian full_name: Weininger, Maximilian last_name: Weininger citation: ama: 'Kretinsky J, Meggendorfer T, Waldmann C, Weininger M. Index appearance record for transforming Rabin automata into parity automata. In: Tools and Algorithms for the Construction and Analysis of Systems. Vol 10205. Springer; 2017:443-460. doi:10.1007/978-3-662-54577-5_26' apa: 'Kretinsky, J., Meggendorfer, T., Waldmann, C., & Weininger, M. (2017). Index appearance record for transforming Rabin automata into parity automata. In Tools and Algorithms for the Construction and Analysis of Systems (Vol. 10205, pp. 443–460). Uppsala, Sweden: Springer. https://doi.org/10.1007/978-3-662-54577-5_26' chicago: Kretinsky, Jan, Tobias Meggendorfer, Clara Waldmann, and Maximilian Weininger. “Index Appearance Record for Transforming Rabin Automata into Parity Automata.” In Tools and Algorithms for the Construction and Analysis of Systems, 10205:443–60. Springer, 2017. https://doi.org/10.1007/978-3-662-54577-5_26. ieee: J. Kretinsky, T. Meggendorfer, C. Waldmann, and M. Weininger, “Index appearance record for transforming Rabin automata into parity automata,” in Tools and Algorithms for the Construction and Analysis of Systems, Uppsala, Sweden, 2017, vol. 10205, pp. 443–460. ista: 'Kretinsky J, Meggendorfer T, Waldmann C, Weininger M. 2017. Index appearance record for transforming Rabin automata into parity automata. Tools and Algorithms for the Construction and Analysis of Systems. TACAS: Tools and Algorithms for the Construction and Analysis of Systems, LNCS, vol. 10205, 443–460.' mla: Kretinsky, Jan, et al. “Index Appearance Record for Transforming Rabin Automata into Parity Automata.” Tools and Algorithms for the Construction and Analysis of Systems, vol. 10205, Springer, 2017, pp. 443–60, doi:10.1007/978-3-662-54577-5_26. short: J. Kretinsky, T. Meggendorfer, C. Waldmann, M. Weininger, in:, Tools and Algorithms for the Construction and Analysis of Systems, Springer, 2017, pp. 443–460. conference: end_date: 2017-04-29 location: Uppsala, Sweden name: 'TACAS: Tools and Algorithms for the Construction and Analysis of Systems' start_date: 2017-04-22 date_created: 2023-06-21T13:21:14Z date_published: 2017-03-31T00:00:00Z date_updated: 2023-06-21T13:29:46Z day: '31' department: - _id: KrCh doi: 10.1007/978-3-662-54577-5_26 external_id: arxiv: - '1701.05738' intvolume: ' 10205' language: - iso: eng main_file_link: - open_access: '1' url: https://doi.org/10.48550/arXiv.1701.05738 month: '03' oa: 1 oa_version: Preprint page: 443-460 publication: Tools and Algorithms for the Construction and Analysis of Systems publication_identifier: eisbn: - '9783662545775' eissn: - 1611-3349 isbn: - '9783662545768' issn: - 0302-9743 publication_status: published publisher: Springer quality_controlled: '1' status: public title: Index appearance record for transforming Rabin automata into parity automata type: conference user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 10205 year: '2017' ... --- _id: '950' abstract: - lang: eng text: "Two-player games on graphs are widely studied in formal methods as they model the interaction between a system and its environment. The game is played by moving a token throughout a graph to produce an infinite path. There are several common modes to determine how the players move the token through the graph; e.g., in turn-based games the players alternate turns in moving the token. We study the bidding mode of moving the token, which, to the best of our knowledge, has never been studied in infinite-duration games. Both players have separate budgets, which sum up to $1$. In each turn, a bidding takes place. Both players submit bids simultaneously, and a bid is legal if it does not exceed the available budget. The winner of the bidding pays his bid to the other player and moves the token. For reachability objectives, repeated bidding games have been studied and are called Richman games. There, a central question is the existence and computation of threshold budgets; namely, a value t\\in [0,1] such that if\\PO's budget exceeds $t$, he can win the game, and if\\PT's budget exceeds 1-t, he can win the game. We focus on parity games and mean-payoff games. We show the existence of threshold budgets in these games, and reduce the problem of finding them to Richman games. We also determine the strategy-complexity of an optimal strategy. Our most interesting result shows that memoryless strategies suffice for mean-payoff bidding games. \r\n" alternative_title: - LIPIcs article_number: '17' author: - first_name: Guy full_name: Avni, Guy id: 463C8BC2-F248-11E8-B48F-1D18A9856A87 last_name: Avni orcid: 0000-0001-5588-8287 - first_name: Thomas A full_name: Henzinger, Thomas A id: 40876CD8-F248-11E8-B48F-1D18A9856A87 last_name: Henzinger orcid: 0000−0002−2985−7724 - first_name: Ventsislav K full_name: Chonev, Ventsislav K id: 36CBE2E6-F248-11E8-B48F-1D18A9856A87 last_name: Chonev citation: ama: 'Avni G, Henzinger TA, Chonev VK. Infinite-duration bidding games. In: Vol 85. Schloss Dagstuhl - Leibniz-Zentrum für Informatik; 2017. doi:10.4230/LIPIcs.CONCUR.2017.21' apa: 'Avni, G., Henzinger, T. A., & Chonev, V. K. (2017). Infinite-duration bidding games (Vol. 85). Presented at the CONCUR: Concurrency Theory, Berlin, Germany: Schloss Dagstuhl - Leibniz-Zentrum für Informatik. https://doi.org/10.4230/LIPIcs.CONCUR.2017.21' chicago: Avni, Guy, Thomas A Henzinger, and Ventsislav K Chonev. “Infinite-Duration Bidding Games,” Vol. 85. Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2017. https://doi.org/10.4230/LIPIcs.CONCUR.2017.21. ieee: 'G. Avni, T. A. Henzinger, and V. K. Chonev, “Infinite-duration bidding games,” presented at the CONCUR: Concurrency Theory, Berlin, Germany, 2017, vol. 85.' ista: 'Avni G, Henzinger TA, Chonev VK. 2017. Infinite-duration bidding games. CONCUR: Concurrency Theory, LIPIcs, vol. 85, 17.' mla: Avni, Guy, et al. Infinite-Duration Bidding Games. Vol. 85, 17, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2017, doi:10.4230/LIPIcs.CONCUR.2017.21. short: G. Avni, T.A. Henzinger, V.K. Chonev, in:, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2017. conference: end_date: 2017-09-07 location: Berlin, Germany name: 'CONCUR: Concurrency Theory' start_date: 2017-09-05 date_created: 2018-12-11T11:49:22Z date_published: 2017-09-01T00:00:00Z date_updated: 2023-08-29T07:02:13Z day: '01' ddc: - '000' department: - _id: ToHe - _id: KrCh doi: 10.4230/LIPIcs.CONCUR.2017.21 external_id: arxiv: - '1705.01433' file: - access_level: open_access checksum: 6d5cccf755207b91ccbef95d8275b013 content_type: application/pdf creator: system date_created: 2018-12-12T10:18:00Z date_updated: 2020-07-14T12:48:16Z file_id: '5318' file_name: IST-2017-844-v1+1_concur-cr.pdf file_size: 335170 relation: main_file file_date_updated: 2020-07-14T12:48:16Z has_accepted_license: '1' intvolume: ' 85' language: - iso: eng month: '09' oa: 1 oa_version: Published Version project: - _id: 25832EC2-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: S 11407_N23 name: Rigorous Systems Engineering - _id: 25F42A32-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: Z211 name: The Wittgenstein Prize publication_identifier: issn: - 1868-8969 publication_status: published publisher: Schloss Dagstuhl - Leibniz-Zentrum für Informatik publist_id: '6466' pubrep_id: '844' quality_controlled: '1' related_material: record: - id: '6752' relation: later_version status: public scopus_import: 1 status: public title: Infinite-duration bidding games tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: conference user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 85 year: '2017' ... --- _id: '821' abstract: - lang: eng text: "This dissertation focuses on algorithmic aspects of program verification, and presents modeling and complexity advances on several problems related to the\r\nstatic analysis of programs, the stateless model checking of concurrent programs, and the competitive analysis of real-time scheduling algorithms.\r\nOur contributions can be broadly grouped into five categories.\r\n\r\nOur first contribution is a set of new algorithms and data structures for the quantitative and data-flow analysis of programs, based on the graph-theoretic notion of treewidth.\r\nIt has been observed that the control-flow graphs of typical programs have special structure, and are characterized as graphs of small treewidth.\r\nWe utilize this structural property to provide faster algorithms for the quantitative and data-flow analysis of recursive and concurrent programs.\r\nIn most cases we make an algebraic treatment of the considered problem,\r\nwhere several interesting analyses, such as the reachability, shortest path, and certain kind of data-flow analysis problems follow as special cases. \r\nWe exploit the constant-treewidth property to obtain algorithmic improvements for on-demand versions of the problems, \r\nand provide data structures with various tradeoffs between the resources spent in the preprocessing and querying phase.\r\nWe also improve on the algorithmic complexity of quantitative problems outside the algebraic path framework,\r\nnamely of the minimum mean-payoff, minimum ratio, and minimum initial credit for energy problems.\r\n\r\n\r\nOur second contribution is a set of algorithms for Dyck reachability with applications to data-dependence analysis and alias analysis.\r\nIn particular, we develop an optimal algorithm for Dyck reachability on bidirected graphs, which are ubiquitous in context-insensitive, field-sensitive points-to analysis.\r\nAdditionally, we develop an efficient algorithm for context-sensitive data-dependence analysis via Dyck reachability,\r\nwhere the task is to obtain analysis summaries of library code in the presence of callbacks.\r\nOur algorithm preprocesses libraries in almost linear time, after which the contribution of the library in the complexity of the client analysis is (i)~linear in the number of call sites and (ii)~only logarithmic in the size of the whole library, as opposed to linear in the size of the whole library.\r\nFinally, we prove that Dyck reachability is Boolean Matrix Multiplication-hard in general, and the hardness also holds for graphs of constant treewidth.\r\nThis hardness result strongly indicates that there exist no combinatorial algorithms for Dyck reachability with truly subcubic complexity.\r\n\r\n\r\nOur third contribution is the formalization and algorithmic treatment of the Quantitative Interprocedural Analysis framework.\r\nIn this framework, the transitions of a recursive program are annotated as good, bad or neutral, and receive a weight which measures\r\nthe magnitude of their respective effect.\r\nThe Quantitative Interprocedural Analysis problem asks to determine whether there exists an infinite run of the program where the long-run ratio of the bad weights over the good weights is above a given threshold.\r\nWe illustrate how several quantitative problems related to static analysis of recursive programs can be instantiated in this framework,\r\nand present some case studies to this direction.\r\n\r\n\r\nOur fourth contribution is a new dynamic partial-order reduction for the stateless model checking of concurrent programs. Traditional approaches rely on the standard Mazurkiewicz equivalence between traces, by means of partitioning the trace space into equivalence classes, and attempting to explore a few representatives from each class.\r\nWe present a new dynamic partial-order reduction method called the Data-centric Partial Order Reduction (DC-DPOR).\r\nOur algorithm is based on a new equivalence between traces, called the observation equivalence.\r\nDC-DPOR explores a coarser partitioning of the trace space than any exploration method based on the standard Mazurkiewicz equivalence.\r\nDepending on the program, the new partitioning can be even exponentially coarser.\r\nAdditionally, DC-DPOR spends only polynomial time in each explored class.\r\n\r\n\r\nOur fifth contribution is the use of automata and game-theoretic verification techniques in the competitive analysis and synthesis of real-time scheduling algorithms for firm-deadline tasks.\r\nOn the analysis side, we leverage automata on infinite words to compute the competitive ratio of real-time schedulers subject to various environmental constraints.\r\nOn the synthesis side, we introduce a new instance of two-player mean-payoff partial-information games, and show\r\nhow the synthesis of an optimal real-time scheduler can be reduced to computing winning strategies in this new type of games." acknowledgement: "First, I am thankful to my advisor, Krishnendu Chatterjee, for offering me the opportunity to\r\nmaterialize my scientific curiosity in a remarkably wide range of interesting topics, as well as for his constant availability and continuous support throughout my doctoral studies. I have had the privilege of collaborating with, discussing and getting inspired by all members of my committee: Thomas A. Henzinger, Ulrich Schmid and Martin A. Nowak. The role of the above four people has been very instrumental both to the research carried out for this dissertation, and to the researcher I evolved to in the process.\r\nI have greatly enjoyed my numerous brainstorming sessions with Rasmus Ibsen-Jensen, many\r\nof which led to results on low-treewidth graphs presented here. I thank Alex Kößler for our\r\ndiscussions on modeling and analyzing real-time scheduling algorithms, Yaron Velner for our\r\ncollaboration on the Quantitative Interprocedural Analysis framework, and Nishant Sinha for our initial discussions on partial order reduction techniques in stateless model checking. I also thank Jan Otop, Ben Adlam, Bernhard Kragl and Josef Tkadlec for our fruitful collaborations on\r\ntopics outside the scope of this dissertation, as well as the interns Prateesh Goyal, Amir Kafshdar Goharshady, Samarth Mishra, Bhavya Choudhary and Marek Chalupa, with whom I have shared my excitement on various research topics. Together with my collaborators, I thank officemates and members of the Chatterjee and Henzinger groups throughout the years, Thorsten Tarrach, Ventsi Chonev, Roopsha Samanta, Przemek Daca, Mirco Giacobbe, Tanja Petrov, Ashutosh\r\nGupta, Arjun Radhakrishna, \ Petr Novontý, Christian Hilbe, Jakob Ruess, Martin Chmelik,\r\nCezara Dragoi, Johannes Reiter, Andrey Kupriyanov, Guy Avni, Sasha Rubin, Jessica Davies, Hongfei Fu, Thomas Ferrère, Pavol Cerný, Ali Sezgin, Jan Kretínský, Sergiy Bogomolov, Hui\r\nKong, Benjamin Aminof, Duc-Hiep Chu, and Damien Zufferey. Besides collaborations and office spaces, with many of the above people I have been fortunate to share numerous whiteboard\r\ndiscussions, as well as memorable long walks and amicable meals accompanied by stimulating\r\nconversations. I am highly indebted to Elisabeth Hacker for her continuous assistance in matters\r\nthat often exceeded her official duties, and who made my integration in Austria a smooth process." alternative_title: - ISTA Thesis article_processing_charge: No author: - first_name: Andreas full_name: Pavlogiannis, Andreas id: 49704004-F248-11E8-B48F-1D18A9856A87 last_name: Pavlogiannis orcid: 0000-0002-8943-0722 citation: ama: Pavlogiannis A. Algorithmic advances in program analysis and their applications. 2017. doi:10.15479/AT:ISTA:th_854 apa: Pavlogiannis, A. (2017). Algorithmic advances in program analysis and their applications. Institute of Science and Technology Austria. https://doi.org/10.15479/AT:ISTA:th_854 chicago: Pavlogiannis, Andreas. “Algorithmic Advances in Program Analysis and Their Applications.” Institute of Science and Technology Austria, 2017. https://doi.org/10.15479/AT:ISTA:th_854. ieee: A. Pavlogiannis, “Algorithmic advances in program analysis and their applications,” Institute of Science and Technology Austria, 2017. ista: Pavlogiannis A. 2017. Algorithmic advances in program analysis and their applications. Institute of Science and Technology Austria. mla: Pavlogiannis, Andreas. Algorithmic Advances in Program Analysis and Their Applications. Institute of Science and Technology Austria, 2017, doi:10.15479/AT:ISTA:th_854. short: A. Pavlogiannis, Algorithmic Advances in Program Analysis and Their Applications, Institute of Science and Technology Austria, 2017. date_created: 2018-12-11T11:48:41Z date_published: 2017-08-09T00:00:00Z date_updated: 2023-09-07T12:01:59Z day: '09' ddc: - '000' degree_awarded: PhD department: - _id: KrCh doi: 10.15479/AT:ISTA:th_854 ec_funded: 1 file: - access_level: open_access checksum: 3a3ec003f6ee73f41f82a544d63dfc77 content_type: application/pdf creator: system date_created: 2018-12-12T10:11:44Z date_updated: 2020-07-14T12:48:10Z file_id: '4900' file_name: IST-2017-854-v1+1_Pavlogiannis_Thesis_PubRep.pdf file_size: 4103115 relation: main_file - access_level: closed checksum: bd2facc45ff8a2e20c5ed313c2ccaa83 content_type: application/zip creator: dernst date_created: 2019-04-05T07:59:31Z date_updated: 2020-07-14T12:48:10Z file_id: '6201' file_name: 2017_thesis_Pavlogiannis.zip file_size: 14744374 relation: source_file file_date_updated: 2020-07-14T12:48:10Z has_accepted_license: '1' language: - iso: eng license: https://creativecommons.org/licenses/by-nd/4.0/ month: '08' oa: 1 oa_version: Published Version page: '418' project: - _id: 2584A770-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: P 23499-N23 name: Modern Graph Algorithmic Techniques in Formal Verification - _id: 25832EC2-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: S 11407_N23 name: Rigorous Systems Engineering - _id: 2581B60A-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '279307' name: 'Quantitative Graph Games: Theory and Applications' publication_identifier: issn: - 2663-337X publication_status: published publisher: Institute of Science and Technology Austria publist_id: '6828' pubrep_id: '854' related_material: record: - id: '1071' relation: part_of_dissertation status: public - id: '1437' relation: part_of_dissertation status: public - id: '1602' relation: part_of_dissertation status: public - id: '1604' relation: part_of_dissertation status: public - id: '1607' relation: part_of_dissertation status: public - id: '1714' relation: part_of_dissertation status: public status: public supervisor: - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X title: Algorithmic advances in program analysis and their applications tmp: image: /image/cc_by_nd.png legal_code_url: https://creativecommons.org/licenses/by-nd/4.0/legalcode name: Creative Commons Attribution-NoDerivatives 4.0 International (CC BY-ND 4.0) short: CC BY-ND (4.0) type: dissertation user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1 year: '2017' ... --- _id: '1407' abstract: - lang: eng text: We consider the problem of computing the set of initial states of a dynamical system such that there exists a control strategy to ensure that the trajectories satisfy a temporal logic specification with probability 1 (almost-surely). We focus on discrete-time, stochastic linear dynamics and specifications given as formulas of the Generalized Reactivity(1) fragment of Linear Temporal Logic over linear predicates in the states of the system. We propose a solution based on iterative abstraction-refinement, and turn-based 2-player probabilistic games. While the theoretical guarantee of our algorithm after any finite number of iterations is only a partial solution, we show that if our algorithm terminates, then the result is the set of all satisfying initial states. Moreover, for any (partial) solution our algorithm synthesizes witness control strategies to ensure almost-sure satisfaction of the temporal logic specification. While the proposed algorithm guarantees progress and soundness in every iteration, it is computationally demanding. We offer an alternative, more efficient solution for the reachability properties that decomposes the problem into a series of smaller problems of the same type. All algorithms are demonstrated on an illustrative case study. article_processing_charge: No author: - first_name: Mária full_name: Svoreňová, Mária last_name: Svoreňová - first_name: Jan full_name: Kretinsky, Jan id: 44CEF464-F248-11E8-B48F-1D18A9856A87 last_name: Kretinsky orcid: 0000-0002-8122-2881 - first_name: Martin full_name: Chmelik, Martin id: 3624234E-F248-11E8-B48F-1D18A9856A87 last_name: Chmelik - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Ivana full_name: Cěrná, Ivana last_name: Cěrná - first_name: Cǎlin full_name: Belta, Cǎlin last_name: Belta citation: ama: 'Svoreňová M, Kretinsky J, Chmelik M, Chatterjee K, Cěrná I, Belta C. Temporal logic control for stochastic linear systems using abstraction refinement of probabilistic games. Nonlinear Analysis: Hybrid Systems. 2017;23(2):230-253. doi:10.1016/j.nahs.2016.04.006' apa: 'Svoreňová, M., Kretinsky, J., Chmelik, M., Chatterjee, K., Cěrná, I., & Belta, C. (2017). Temporal logic control for stochastic linear systems using abstraction refinement of probabilistic games. Nonlinear Analysis: Hybrid Systems. Elsevier. https://doi.org/10.1016/j.nahs.2016.04.006' chicago: 'Svoreňová, Mária, Jan Kretinsky, Martin Chmelik, Krishnendu Chatterjee, Ivana Cěrná, and Cǎlin Belta. “Temporal Logic Control for Stochastic Linear Systems Using Abstraction Refinement of Probabilistic Games.” Nonlinear Analysis: Hybrid Systems. Elsevier, 2017. https://doi.org/10.1016/j.nahs.2016.04.006.' ieee: 'M. Svoreňová, J. Kretinsky, M. Chmelik, K. Chatterjee, I. Cěrná, and C. Belta, “Temporal logic control for stochastic linear systems using abstraction refinement of probabilistic games,” Nonlinear Analysis: Hybrid Systems, vol. 23, no. 2. Elsevier, pp. 230–253, 2017.' ista: 'Svoreňová M, Kretinsky J, Chmelik M, Chatterjee K, Cěrná I, Belta C. 2017. Temporal logic control for stochastic linear systems using abstraction refinement of probabilistic games. Nonlinear Analysis: Hybrid Systems. 23(2), 230–253.' mla: 'Svoreňová, Mária, et al. “Temporal Logic Control for Stochastic Linear Systems Using Abstraction Refinement of Probabilistic Games.” Nonlinear Analysis: Hybrid Systems, vol. 23, no. 2, Elsevier, 2017, pp. 230–53, doi:10.1016/j.nahs.2016.04.006.' short: 'M. Svoreňová, J. Kretinsky, M. Chmelik, K. Chatterjee, I. Cěrná, C. Belta, Nonlinear Analysis: Hybrid Systems 23 (2017) 230–253.' date_created: 2018-12-11T11:51:50Z date_published: 2017-02-01T00:00:00Z date_updated: 2023-09-20T09:43:09Z day: '01' department: - _id: ToHe - _id: KrCh doi: 10.1016/j.nahs.2016.04.006 ec_funded: 1 external_id: arxiv: - '1410.5387' isi: - '000390637000014' intvolume: ' 23' isi: 1 issue: '2' language: - iso: eng main_file_link: - open_access: '1' url: http://arxiv.org/abs/1410.5387 month: '02' oa: 1 oa_version: Preprint page: 230 - 253 project: - _id: 25681D80-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '291734' name: International IST Postdoc Fellowship Programme - _id: 25EE3708-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '267989' name: Quantitative Reactive Modeling - _id: 2581B60A-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '279307' name: 'Quantitative Graph Games: Theory and Applications' - _id: 25832EC2-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: S 11407_N23 name: Rigorous Systems Engineering - _id: 2584A770-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: P 23499-N23 name: Modern Graph Algorithmic Techniques in Formal Verification - _id: 25863FF4-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: S11407 name: Game Theory publication: 'Nonlinear Analysis: Hybrid Systems' publication_status: published publisher: Elsevier publist_id: '5800' quality_controlled: '1' related_material: record: - id: '1689' relation: earlier_version status: public scopus_import: '1' status: public title: Temporal logic control for stochastic linear systems using abstraction refinement of probabilistic games type: journal_article user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1 volume: 23 year: '2017' ... --- _id: '1294' abstract: - lang: eng text: We study controller synthesis problems for finite-state Markov decision processes, where the objective is to optimize the expected mean-payoff performance and stability (also known as variability in the literature). We argue that the basic notion of expressing the stability using the statistical variance of the mean payoff is sometimes insufficient, and propose an alternative definition. We show that a strategy ensuring both the expected mean payoff and the variance below given bounds requires randomization and memory, under both the above definitions. We then show that the problem of finding such a strategy can be expressed as a set of constraints. article_processing_charge: No author: - first_name: Tomáš full_name: Brázdil, Tomáš last_name: Brázdil - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Vojtěch full_name: Forejt, Vojtěch last_name: Forejt - first_name: Antonín full_name: Kučera, Antonín last_name: Kučera citation: ama: Brázdil T, Chatterjee K, Forejt V, Kučera A. Trading performance for stability in Markov decision processes. Journal of Computer and System Sciences. 2017;84:144-170. doi:10.1016/j.jcss.2016.09.009 apa: Brázdil, T., Chatterjee, K., Forejt, V., & Kučera, A. (2017). Trading performance for stability in Markov decision processes. Journal of Computer and System Sciences. Elsevier. https://doi.org/10.1016/j.jcss.2016.09.009 chicago: Brázdil, Tomáš, Krishnendu Chatterjee, Vojtěch Forejt, and Antonín Kučera. “Trading Performance for Stability in Markov Decision Processes.” Journal of Computer and System Sciences. Elsevier, 2017. https://doi.org/10.1016/j.jcss.2016.09.009. ieee: T. Brázdil, K. Chatterjee, V. Forejt, and A. Kučera, “Trading performance for stability in Markov decision processes,” Journal of Computer and System Sciences, vol. 84. Elsevier, pp. 144–170, 2017. ista: Brázdil T, Chatterjee K, Forejt V, Kučera A. 2017. Trading performance for stability in Markov decision processes. Journal of Computer and System Sciences. 84, 144–170. mla: Brázdil, Tomáš, et al. “Trading Performance for Stability in Markov Decision Processes.” Journal of Computer and System Sciences, vol. 84, Elsevier, 2017, pp. 144–70, doi:10.1016/j.jcss.2016.09.009. short: T. Brázdil, K. Chatterjee, V. Forejt, A. Kučera, Journal of Computer and System Sciences 84 (2017) 144–170. date_created: 2018-12-11T11:51:12Z date_published: 2017-03-01T00:00:00Z date_updated: 2023-09-20T11:15:31Z day: '01' ddc: - '004' - '006' department: - _id: KrCh doi: 10.1016/j.jcss.2016.09.009 ec_funded: 1 external_id: isi: - '000388430000011' file: - access_level: open_access checksum: 91271b23cf884d7c06d33bef0cd623b1 content_type: application/pdf creator: system date_created: 2018-12-12T10:11:30Z date_updated: 2020-07-14T12:44:42Z file_id: '4885' file_name: IST-2016-717-v1+1_1-s2.0-S0022000016300897-main.pdf file_size: 708657 relation: main_file file_date_updated: 2020-07-14T12:44:42Z has_accepted_license: '1' intvolume: ' 84' isi: 1 language: - iso: eng month: '03' oa: 1 oa_version: Published Version page: 144 - 170 project: - _id: 2584A770-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: P 23499-N23 name: Modern Graph Algorithmic Techniques in Formal Verification - _id: 25863FF4-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: S11407 name: Game Theory - _id: 2581B60A-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '279307' name: 'Quantitative Graph Games: Theory and Applications' - _id: 2587B514-B435-11E9-9278-68D0E5697425 name: Microsoft Research Faculty Fellowship publication: Journal of Computer and System Sciences publication_status: published publisher: Elsevier publist_id: '6009' pubrep_id: '717' quality_controlled: '1' related_material: record: - id: '2305' relation: earlier_version status: public scopus_import: '1' status: public title: Trading performance for stability in Markov decision processes tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: journal_article user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1 volume: 84 year: '2017' ... --- _id: '1080' abstract: - lang: eng text: Reconstructing the evolutionary history of metastases is critical for understanding their basic biological principles and has profound clinical implications. Genome-wide sequencing data has enabled modern phylogenomic methods to accurately dissect subclones and their phylogenies from noisy and impure bulk tumour samples at unprecedented depth. However, existing methods are not designed to infer metastatic seeding patterns. Here we develop a tool, called Treeomics, to reconstruct the phylogeny of metastases and map subclones to their anatomic locations. Treeomics infers comprehensive seeding patterns for pancreatic, ovarian, and prostate cancers. Moreover, Treeomics correctly disambiguates true seeding patterns from sequencing artifacts; 7% of variants were misclassified by conventional statistical methods. These artifacts can skew phylogenies by creating illusory tumour heterogeneity among distinct samples. In silico benchmarking on simulated tumour phylogenies across a wide range of sample purities (15–95%) and sequencing depths (25-800 × ) demonstrates the accuracy of Treeomics compared with existing methods. article_number: '14114' article_processing_charge: No author: - first_name: Johannes full_name: Reiter, Johannes id: 4A918E98-F248-11E8-B48F-1D18A9856A87 last_name: Reiter orcid: 0000-0002-0170-7353 - first_name: Alvin full_name: Makohon Moore, Alvin last_name: Makohon Moore - first_name: Jeffrey full_name: Gerold, Jeffrey last_name: Gerold - first_name: Ivana full_name: Božić, Ivana last_name: Božić - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Christine full_name: Iacobuzio Donahue, Christine last_name: Iacobuzio Donahue - first_name: Bert full_name: Vogelstein, Bert last_name: Vogelstein - first_name: Martin full_name: Nowak, Martin last_name: Nowak citation: ama: Reiter J, Makohon Moore A, Gerold J, et al. Reconstructing metastatic seeding patterns of human cancers. Nature Communications. 2017;8. doi:10.1038/ncomms14114 apa: Reiter, J., Makohon Moore, A., Gerold, J., Božić, I., Chatterjee, K., Iacobuzio Donahue, C., … Nowak, M. (2017). Reconstructing metastatic seeding patterns of human cancers. Nature Communications. Nature Publishing Group. https://doi.org/10.1038/ncomms14114 chicago: Reiter, Johannes, Alvin Makohon Moore, Jeffrey Gerold, Ivana Božić, Krishnendu Chatterjee, Christine Iacobuzio Donahue, Bert Vogelstein, and Martin Nowak. “Reconstructing Metastatic Seeding Patterns of Human Cancers.” Nature Communications. Nature Publishing Group, 2017. https://doi.org/10.1038/ncomms14114. ieee: J. Reiter et al., “Reconstructing metastatic seeding patterns of human cancers,” Nature Communications, vol. 8. Nature Publishing Group, 2017. ista: Reiter J, Makohon Moore A, Gerold J, Božić I, Chatterjee K, Iacobuzio Donahue C, Vogelstein B, Nowak M. 2017. Reconstructing metastatic seeding patterns of human cancers. Nature Communications. 8, 14114. mla: Reiter, Johannes, et al. “Reconstructing Metastatic Seeding Patterns of Human Cancers.” Nature Communications, vol. 8, 14114, Nature Publishing Group, 2017, doi:10.1038/ncomms14114. short: J. Reiter, A. Makohon Moore, J. Gerold, I. Božić, K. Chatterjee, C. Iacobuzio Donahue, B. Vogelstein, M. Nowak, Nature Communications 8 (2017). date_created: 2018-12-11T11:50:02Z date_published: 2017-01-31T00:00:00Z date_updated: 2023-09-20T11:55:31Z day: '31' ddc: - '004' - '006' department: - _id: KrCh doi: 10.1038/ncomms14114 ec_funded: 1 external_id: isi: - '000393096600001' file: - access_level: open_access content_type: application/pdf creator: system date_created: 2018-12-12T10:15:15Z date_updated: 2018-12-12T10:15:15Z file_id: '5133' file_name: IST-2017-786-v1+1_ncomms14114.pdf file_size: 897050 relation: main_file file_date_updated: 2018-12-12T10:15:15Z has_accepted_license: '1' intvolume: ' 8' isi: 1 language: - iso: eng month: '01' oa: 1 oa_version: Published Version project: - _id: 2581B60A-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '279307' name: 'Quantitative Graph Games: Theory and Applications' - _id: 2584A770-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: P 23499-N23 name: Modern Graph Algorithmic Techniques in Formal Verification - _id: 25863FF4-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: S11407 name: Game Theory publication: Nature Communications publication_identifier: issn: - '20411723' publication_status: published publisher: Nature Publishing Group publist_id: '6301' pubrep_id: '786' quality_controlled: '1' scopus_import: '1' status: public title: Reconstructing metastatic seeding patterns of human cancers tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: journal_article user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1 volume: 8 year: '2017' ... --- _id: '1065' abstract: - lang: eng text: 'We consider the problem of reachability in pushdown graphs. We study the problem for pushdown graphs with constant treewidth. Even for pushdown graphs with treewidth 1, for the reachability problem we establish the following: (i) the problem is PTIME-complete, and (ii) any subcubic algorithm for the problem would contradict the k-clique conjecture and imply faster combinatorial algorithms for cliques in graphs.' article_processing_charge: No author: - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Georg F full_name: Osang, Georg F id: 464B40D6-F248-11E8-B48F-1D18A9856A87 last_name: Osang orcid: 0000-0002-8882-5116 citation: ama: Chatterjee K, Osang GF. Pushdown reachability with constant treewidth. Information Processing Letters. 2017;122:25-29. doi:10.1016/j.ipl.2017.02.003 apa: Chatterjee, K., & Osang, G. F. (2017). Pushdown reachability with constant treewidth. Information Processing Letters. Elsevier. https://doi.org/10.1016/j.ipl.2017.02.003 chicago: Chatterjee, Krishnendu, and Georg F Osang. “Pushdown Reachability with Constant Treewidth.” Information Processing Letters. Elsevier, 2017. https://doi.org/10.1016/j.ipl.2017.02.003. ieee: K. Chatterjee and G. F. Osang, “Pushdown reachability with constant treewidth,” Information Processing Letters, vol. 122. Elsevier, pp. 25–29, 2017. ista: Chatterjee K, Osang GF. 2017. Pushdown reachability with constant treewidth. Information Processing Letters. 122, 25–29. mla: Chatterjee, Krishnendu, and Georg F. Osang. “Pushdown Reachability with Constant Treewidth.” Information Processing Letters, vol. 122, Elsevier, 2017, pp. 25–29, doi:10.1016/j.ipl.2017.02.003. short: K. Chatterjee, G.F. Osang, Information Processing Letters 122 (2017) 25–29. date_created: 2018-12-11T11:49:57Z date_published: 2017-06-01T00:00:00Z date_updated: 2023-09-20T12:08:18Z day: '01' ddc: - '000' department: - _id: KrCh - _id: HeEd doi: 10.1016/j.ipl.2017.02.003 ec_funded: 1 external_id: isi: - '000399506600005' file: - access_level: open_access content_type: application/pdf creator: system date_created: 2018-12-12T10:13:17Z date_updated: 2019-10-15T07:44:51Z file_id: '4998' file_name: IST-2018-991-v1+2_2018_Chatterjee_Pushdown_PREPRINT.pdf file_size: 247657 relation: main_file file_date_updated: 2019-10-15T07:44:51Z has_accepted_license: '1' intvolume: ' 122' isi: 1 language: - iso: eng month: '06' oa: 1 oa_version: Submitted Version page: 25 - 29 project: - _id: 2584A770-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: P 23499-N23 name: Modern Graph Algorithmic Techniques in Formal Verification - _id: 25863FF4-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: S11407 name: Game Theory - _id: 2581B60A-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '279307' name: 'Quantitative Graph Games: Theory and Applications' publication: Information Processing Letters publication_identifier: issn: - '00200190' publication_status: published publisher: Elsevier publist_id: '6323' pubrep_id: '991' quality_controlled: '1' scopus_import: '1' status: public title: Pushdown reachability with constant treewidth type: journal_article user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1 volume: 122 year: '2017' ... --- _id: '1066' abstract: - lang: eng text: "Simulation is an attractive alternative to language inclusion for automata as it is an under-approximation of language inclusion, but usually has much lower complexity. Simulation has also been extended in two orthogonal directions, namely, (1) fair simulation, for simulation over specified set of infinite runs; and (2) quantitative simulation, for simulation between weighted automata. While fair trace inclusion is PSPACE-complete, fair simulation can be computed in polynomial time. For weighted automata, the (quantitative) language inclusion problem is undecidable in general, whereas the (quantitative) simulation reduces to quantitative games, which admit pseudo-polynomial time algorithms.\r\n\r\nIn this work, we study (quantitative) simulation for weighted automata with Büchi acceptance conditions, i.e., we generalize fair simulation from non-weighted automata to weighted automata. We show that imposing Büchi acceptance conditions on weighted automata changes many fundamental properties of the simulation games, yet they still admit pseudo-polynomial time algorithms." article_processing_charge: No author: - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Thomas A full_name: Henzinger, Thomas A id: 40876CD8-F248-11E8-B48F-1D18A9856A87 last_name: Henzinger orcid: 0000−0002−2985−7724 - first_name: Jan full_name: Otop, Jan id: 2FC5DA74-F248-11E8-B48F-1D18A9856A87 last_name: Otop - first_name: Yaron full_name: Velner, Yaron last_name: Velner citation: ama: Chatterjee K, Henzinger TA, Otop J, Velner Y. Quantitative fair simulation games. Information and Computation. 2017;254(2):143-166. doi:10.1016/j.ic.2016.10.006 apa: Chatterjee, K., Henzinger, T. A., Otop, J., & Velner, Y. (2017). Quantitative fair simulation games. Information and Computation. Elsevier. https://doi.org/10.1016/j.ic.2016.10.006 chicago: Chatterjee, Krishnendu, Thomas A Henzinger, Jan Otop, and Yaron Velner. “Quantitative Fair Simulation Games.” Information and Computation. Elsevier, 2017. https://doi.org/10.1016/j.ic.2016.10.006. ieee: K. Chatterjee, T. A. Henzinger, J. Otop, and Y. Velner, “Quantitative fair simulation games,” Information and Computation, vol. 254, no. 2. Elsevier, pp. 143–166, 2017. ista: Chatterjee K, Henzinger TA, Otop J, Velner Y. 2017. Quantitative fair simulation games. Information and Computation. 254(2), 143–166. mla: Chatterjee, Krishnendu, et al. “Quantitative Fair Simulation Games.” Information and Computation, vol. 254, no. 2, Elsevier, 2017, pp. 143–66, doi:10.1016/j.ic.2016.10.006. short: K. Chatterjee, T.A. Henzinger, J. Otop, Y. Velner, Information and Computation 254 (2017) 143–166. date_created: 2018-12-11T11:49:58Z date_published: 2017-06-01T00:00:00Z date_updated: 2023-09-20T12:07:48Z day: '01' department: - _id: KrCh - _id: ToHe doi: 10.1016/j.ic.2016.10.006 ec_funded: 1 external_id: isi: - '000402025600002' intvolume: ' 254' isi: 1 issue: '2' language: - iso: eng month: '06' oa_version: None page: 143 - 166 project: - _id: 2581B60A-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '279307' name: 'Quantitative Graph Games: Theory and Applications' - _id: 25EE3708-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '267989' name: Quantitative Reactive Modeling - _id: 2584A770-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: P 23499-N23 name: Modern Graph Algorithmic Techniques in Formal Verification - _id: 25832EC2-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: S 11407_N23 name: Rigorous Systems Engineering - _id: 2587B514-B435-11E9-9278-68D0E5697425 name: Microsoft Research Faculty Fellowship publication: Information and Computation publication_status: published publisher: Elsevier publist_id: '6322' quality_controlled: '1' related_material: record: - id: '5428' relation: earlier_version status: public scopus_import: '1' status: public title: Quantitative fair simulation games type: journal_article user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1 volume: 254 year: '2017' ... --- _id: '1011' abstract: - lang: eng text: Pushdown systems (PDSs) and recursive state machines (RSMs), which are linearly equivalent, are standard models for interprocedural analysis. Yet RSMs are more convenient as they (a) explicitly model function calls and returns, and (b) specify many natural parameters for algorithmic analysis, e.g., the number of entries and exits. We consider a general framework where RSM transitions are labeled from a semiring and path properties are algebraic with semiring operations, which can model, e.g., interprocedural reachability and dataflow analysis problems. Our main contributions are new algorithms for several fundamental problems. As compared to a direct translation of RSMs to PDSs and the best-known existing bounds of PDSs, our analysis algorithm improves the complexity for finite-height semirings (that subsumes reachability and standard dataflow properties). We further consider the problem of extracting distance values from the representation structures computed by our algorithm, and give efficient algorithms that distinguish the complexity of a one-time preprocessing from the complexity of each individual query. Another advantage of our algorithm is that our improvements carry over to the concurrent setting, where we improve the bestknown complexity for the context-bounded analysis of concurrent RSMs. Finally, we provide a prototype implementation that gives a significant speed-up on several benchmarks from the SLAM/SDV project. alternative_title: - LNCS article_processing_charge: No author: - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Bernhard full_name: Kragl, Bernhard id: 320FC952-F248-11E8-B48F-1D18A9856A87 last_name: Kragl orcid: 0000-0001-7745-9117 - first_name: Samarth full_name: Mishra, Samarth last_name: Mishra - first_name: Andreas full_name: Pavlogiannis, Andreas id: 49704004-F248-11E8-B48F-1D18A9856A87 last_name: Pavlogiannis orcid: 0000-0002-8943-0722 citation: ama: 'Chatterjee K, Kragl B, Mishra S, Pavlogiannis A. Faster algorithms for weighted recursive state machines. In: Yang H, ed. Vol 10201. Springer; 2017:287-313. doi:10.1007/978-3-662-54434-1_11' apa: 'Chatterjee, K., Kragl, B., Mishra, S., & Pavlogiannis, A. (2017). Faster algorithms for weighted recursive state machines. In H. Yang (Ed.) (Vol. 10201, pp. 287–313). Presented at the ESOP: European Symposium on Programming, Uppsala, Sweden: Springer. https://doi.org/10.1007/978-3-662-54434-1_11' chicago: Chatterjee, Krishnendu, Bernhard Kragl, Samarth Mishra, and Andreas Pavlogiannis. “Faster Algorithms for Weighted Recursive State Machines.” edited by Hongseok Yang, 10201:287–313. Springer, 2017. https://doi.org/10.1007/978-3-662-54434-1_11. ieee: 'K. Chatterjee, B. Kragl, S. Mishra, and A. Pavlogiannis, “Faster algorithms for weighted recursive state machines,” presented at the ESOP: European Symposium on Programming, Uppsala, Sweden, 2017, vol. 10201, pp. 287–313.' ista: 'Chatterjee K, Kragl B, Mishra S, Pavlogiannis A. 2017. Faster algorithms for weighted recursive state machines. ESOP: European Symposium on Programming, LNCS, vol. 10201, 287–313.' mla: Chatterjee, Krishnendu, et al. Faster Algorithms for Weighted Recursive State Machines. Edited by Hongseok Yang, vol. 10201, Springer, 2017, pp. 287–313, doi:10.1007/978-3-662-54434-1_11. short: K. Chatterjee, B. Kragl, S. Mishra, A. Pavlogiannis, in:, H. Yang (Ed.), Springer, 2017, pp. 287–313. conference: end_date: 2017-04-29 location: Uppsala, Sweden name: 'ESOP: European Symposium on Programming' start_date: 2017-04-22 date_created: 2018-12-11T11:49:41Z date_published: 2017-03-19T00:00:00Z date_updated: 2023-09-22T09:44:50Z day: '19' department: - _id: KrCh - _id: ToHe doi: 10.1007/978-3-662-54434-1_11 ec_funded: 1 editor: - first_name: Hongseok full_name: Yang, Hongseok last_name: Yang external_id: isi: - '000681702400011' intvolume: ' 10201' isi: 1 language: - iso: eng main_file_link: - open_access: '1' url: https://arxiv.org/abs/1701.04914 month: '03' oa: 1 oa_version: Submitted Version page: 287 - 313 project: - _id: 25F5A88A-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: S11402-N23 name: Moderne Concurrency Paradigms - _id: 25863FF4-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: S11407 name: Game Theory - _id: 2584A770-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: P 23499-N23 name: Modern Graph Algorithmic Techniques in Formal Verification - _id: 25F42A32-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: Z211 name: The Wittgenstein Prize - _id: 2581B60A-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '279307' name: 'Quantitative Graph Games: Theory and Applications' publication_identifier: issn: - '03029743' publication_status: published publisher: Springer publist_id: '6384' quality_controlled: '1' scopus_import: '1' status: public title: Faster algorithms for weighted recursive state machines type: conference user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1 volume: 10201 year: '2017' ... --- _id: '1009' abstract: - lang: eng text: A standard objective in partially-observable Markov decision processes (POMDPs) is to find a policy that maximizes the expected discounted-sum payoff. However, such policies may still permit unlikely but highly undesirable outcomes, which is problematic especially in safety-critical applications. Recently, there has been a surge of interest in POMDPs where the goal is to maximize the probability to ensure that the payoff is at least a given threshold, but these approaches do not consider any optimization beyond satisfying this threshold constraint. In this work we go beyond both the “expectation” and “threshold” approaches and consider a “guaranteed payoff optimization (GPO)” problem for POMDPs, where we are given a threshold t and the objective is to find a policy σ such that a) each possible outcome of σ yields a discounted-sum payoff of at least t, and b) the expected discounted-sum payoff of σ is optimal (or near-optimal) among all policies satisfying a). We present a practical approach to tackle the GPO problem and evaluate it on standard POMDP benchmarks. acknowledgement: 'he research leading to these results was supported by the Austrian Science Fund (FWF) NFN Grant no. S11407-N23 (RiSE/SHiNE); two ERC Starting grants (279307: Graph Games, 279499: inVEST); the Vienna Science and Tech- nology Fund (WWTF) through project ICT15-003; and the People Programme (Marie Curie Actions) of the European Union’s Seventh Framework Programme (FP7/2007-2013) under REA grant agreement no. [291734].' article_processing_charge: No author: - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Petr full_name: Novotny, Petr id: 3CC3B868-F248-11E8-B48F-1D18A9856A87 last_name: Novotny - first_name: Guillermo full_name: Pérez, Guillermo last_name: Pérez - first_name: Jean full_name: Raskin, Jean last_name: Raskin - first_name: Djordje full_name: Zikelic, Djordje last_name: Zikelic citation: ama: 'Chatterjee K, Novotný P, Pérez G, Raskin J, Zikelic D. Optimizing expectation with guarantees in POMDPs. In: Proceedings of the 31st AAAI Conference on Artificial Intelligence. Vol 5. AAAI Press; 2017:3725-3732.' apa: 'Chatterjee, K., Novotný, P., Pérez, G., Raskin, J., & Zikelic, D. (2017). Optimizing expectation with guarantees in POMDPs. In Proceedings of the 31st AAAI Conference on Artificial Intelligence (Vol. 5, pp. 3725–3732). San Francisco, CA, United States: AAAI Press.' chicago: Chatterjee, Krishnendu, Petr Novotný, Guillermo Pérez, Jean Raskin, and Djordje Zikelic. “Optimizing Expectation with Guarantees in POMDPs.” In Proceedings of the 31st AAAI Conference on Artificial Intelligence, 5:3725–32. AAAI Press, 2017. ieee: K. Chatterjee, P. Novotný, G. Pérez, J. Raskin, and D. Zikelic, “Optimizing expectation with guarantees in POMDPs,” in Proceedings of the 31st AAAI Conference on Artificial Intelligence, San Francisco, CA, United States, 2017, vol. 5, pp. 3725–3732. ista: 'Chatterjee K, Novotný P, Pérez G, Raskin J, Zikelic D. 2017. Optimizing expectation with guarantees in POMDPs. Proceedings of the 31st AAAI Conference on Artificial Intelligence. AAAI: Conference on Artificial Intelligence vol. 5, 3725–3732.' mla: Chatterjee, Krishnendu, et al. “Optimizing Expectation with Guarantees in POMDPs.” Proceedings of the 31st AAAI Conference on Artificial Intelligence, vol. 5, AAAI Press, 2017, pp. 3725–32. short: K. Chatterjee, P. Novotný, G. Pérez, J. Raskin, D. Zikelic, in:, Proceedings of the 31st AAAI Conference on Artificial Intelligence, AAAI Press, 2017, pp. 3725–3732. conference: end_date: 2017-02-10 location: San Francisco, CA, United States name: 'AAAI: Conference on Artificial Intelligence' start_date: 2017-02-04 date_created: 2018-12-11T11:49:40Z date_published: 2017-01-01T00:00:00Z date_updated: 2023-09-22T09:46:41Z day: '01' department: - _id: KrCh ec_funded: 1 external_id: isi: - '000485630703107' intvolume: ' 5' isi: 1 language: - iso: eng main_file_link: - open_access: '1' url: http://www.aaai.org/ocs/index.php/AAAI/AAAI17/paper/download/14354/14092 month: '01' oa: 1 oa_version: Submitted Version page: 3725 - 3732 project: - _id: 25863FF4-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: S11407 name: Game Theory - _id: 2581B60A-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '279307' name: 'Quantitative Graph Games: Theory and Applications' - _id: 25681D80-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '291734' name: International IST Postdoc Fellowship Programme - _id: 25892FC0-B435-11E9-9278-68D0E5697425 grant_number: ICT15-003 name: Efficient Algorithms for Computer Aided Verification publication: Proceedings of the 31st AAAI Conference on Artificial Intelligence publication_status: published publisher: AAAI Press publist_id: '6387' quality_controlled: '1' scopus_import: '1' status: public title: Optimizing expectation with guarantees in POMDPs type: conference user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1 volume: 5 year: '2017' ... --- _id: '744' abstract: - lang: eng text: In evolutionary game theory interactions between individuals are often assumed obligatory. However, in many real-life situations, individuals can decide to opt out of an interaction depending on the information they have about the opponent. We consider a simple evolutionary game theoretic model to study such a scenario, where at each encounter between two individuals the type of the opponent (cooperator/defector) is known with some probability, and where each individual either accepts or opts out of the interaction. If the type of the opponent is unknown, a trustful individual accepts the interaction, whereas a suspicious individual opts out of the interaction. If either of the two individuals opt out both individuals remain without an interaction. We show that in the prisoners dilemma optional interactions along with suspicious behaviour facilitates the emergence of trustful cooperation. article_processing_charge: No article_type: original author: - first_name: Tadeas full_name: Priklopil, Tadeas id: 3C869AA0-F248-11E8-B48F-1D18A9856A87 last_name: Priklopil - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Martin full_name: Nowak, Martin last_name: Nowak citation: ama: Priklopil T, Chatterjee K, Nowak M. Optional interactions and suspicious behaviour facilitates trustful cooperation in prisoners dilemma. Journal of Theoretical Biology. 2017;433:64-72. doi:10.1016/j.jtbi.2017.08.025 apa: Priklopil, T., Chatterjee, K., & Nowak, M. (2017). Optional interactions and suspicious behaviour facilitates trustful cooperation in prisoners dilemma. Journal of Theoretical Biology. Elsevier. https://doi.org/10.1016/j.jtbi.2017.08.025 chicago: Priklopil, Tadeas, Krishnendu Chatterjee, and Martin Nowak. “Optional Interactions and Suspicious Behaviour Facilitates Trustful Cooperation in Prisoners Dilemma.” Journal of Theoretical Biology. Elsevier, 2017. https://doi.org/10.1016/j.jtbi.2017.08.025. ieee: T. Priklopil, K. Chatterjee, and M. Nowak, “Optional interactions and suspicious behaviour facilitates trustful cooperation in prisoners dilemma,” Journal of Theoretical Biology, vol. 433. Elsevier, pp. 64–72, 2017. ista: Priklopil T, Chatterjee K, Nowak M. 2017. Optional interactions and suspicious behaviour facilitates trustful cooperation in prisoners dilemma. Journal of Theoretical Biology. 433, 64–72. mla: Priklopil, Tadeas, et al. “Optional Interactions and Suspicious Behaviour Facilitates Trustful Cooperation in Prisoners Dilemma.” Journal of Theoretical Biology, vol. 433, Elsevier, 2017, pp. 64–72, doi:10.1016/j.jtbi.2017.08.025. short: T. Priklopil, K. Chatterjee, M. Nowak, Journal of Theoretical Biology 433 (2017) 64–72. date_created: 2018-12-11T11:48:16Z date_published: 2017-11-21T00:00:00Z date_updated: 2023-09-27T12:29:02Z day: '21' ddc: - '000' - '570' department: - _id: KrCh doi: 10.1016/j.jtbi.2017.08.025 ec_funded: 1 external_id: isi: - '000412039800007' pmid: - '28867224' file: - access_level: open_access checksum: 4b43af1615ebf1a861840cb03d8a320c content_type: application/pdf creator: dernst date_created: 2019-11-19T07:57:39Z date_updated: 2020-07-14T12:47:58Z file_id: '7047' file_name: 2017_JournTheoretBio_Priklopil.pdf file_size: 537323 relation: main_file file_date_updated: 2020-07-14T12:47:58Z has_accepted_license: '1' intvolume: ' 433' isi: 1 language: - iso: eng month: '11' oa: 1 oa_version: Submitted Version page: 64 - 72 pmid: 1 project: - _id: 25681D80-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '291734' name: International IST Postdoc Fellowship Programme - _id: 2581B60A-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '279307' name: 'Quantitative Graph Games: Theory and Applications' publication: ' Journal of Theoretical Biology' publication_identifier: issn: - '00225193' publication_status: published publisher: Elsevier publist_id: '6923' quality_controlled: '1' scopus_import: '1' status: public title: Optional interactions and suspicious behaviour facilitates trustful cooperation in prisoners dilemma tmp: image: /images/cc_by_nc_nd.png legal_code_url: https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode name: Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) short: CC BY-NC-ND (4.0) type: journal_article user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1 volume: 433 year: '2017' ... --- _id: '1194' abstract: - lang: eng text: 'Termination is one of the basic liveness properties, and we study the termination problem for probabilistic programs with real-valued variables. Previous works focused on the qualitative problem that asks whether an input program terminates with probability~1 (almost-sure termination). A powerful approach for this qualitative problem is the notion of ranking supermartingales with respect to a given set of invariants. The quantitative problem (probabilistic termination) asks for bounds on the termination probability. A fundamental and conceptual drawback of the existing approaches to address probabilistic termination is that even though the supermartingales consider the probabilistic behavior of the programs, the invariants are obtained completely ignoring the probabilistic aspect. In this work we address the probabilistic termination problem for linear-arithmetic probabilistic programs with nondeterminism. We define the notion of {\em stochastic invariants}, which are constraints along with a probability bound that the constraints hold. We introduce a concept of {\em repulsing supermartingales}. First, we show that repulsing supermartingales can be used to obtain bounds on the probability of the stochastic invariants. Second, we show the effectiveness of repulsing supermartingales in the following three ways: (1)~With a combination of ranking and repulsing supermartingales we can compute lower bounds on the probability of termination; (2)~repulsing supermartingales provide witnesses for refutation of almost-sure termination; and (3)~with a combination of ranking and repulsing supermartingales we can establish persistence properties of probabilistic programs. We also present results on related computational problems and an experimental evaluation of our approach on academic examples. ' alternative_title: - ACM SIGPLAN Notices article_processing_charge: No author: - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Petr full_name: Novotny, Petr id: 3CC3B868-F248-11E8-B48F-1D18A9856A87 last_name: Novotny - first_name: Djordje full_name: Zikelic, Djordje last_name: Zikelic citation: ama: 'Chatterjee K, Novotný P, Zikelic D. Stochastic invariants for probabilistic termination. In: Vol 52. ACM; 2017:145-160. doi:10.1145/3009837.3009873' apa: 'Chatterjee, K., Novotný, P., & Zikelic, D. (2017). Stochastic invariants for probabilistic termination (Vol. 52, pp. 145–160). Presented at the POPL: Principles of Programming Languages, Paris, France: ACM. https://doi.org/10.1145/3009837.3009873' chicago: Chatterjee, Krishnendu, Petr Novotný, and Djordje Zikelic. “Stochastic Invariants for Probabilistic Termination,” 52:145–60. ACM, 2017. https://doi.org/10.1145/3009837.3009873. ieee: 'K. Chatterjee, P. Novotný, and D. Zikelic, “Stochastic invariants for probabilistic termination,” presented at the POPL: Principles of Programming Languages, Paris, France, 2017, vol. 52, no. 1, pp. 145–160.' ista: 'Chatterjee K, Novotný P, Zikelic D. 2017. Stochastic invariants for probabilistic termination. POPL: Principles of Programming Languages, ACM SIGPLAN Notices, vol. 52, 145–160.' mla: Chatterjee, Krishnendu, et al. Stochastic Invariants for Probabilistic Termination. Vol. 52, no. 1, ACM, 2017, pp. 145–60, doi:10.1145/3009837.3009873. short: K. Chatterjee, P. Novotný, D. Zikelic, in:, ACM, 2017, pp. 145–160. conference: end_date: 2017-01-21 location: Paris, France name: 'POPL: Principles of Programming Languages' start_date: 2017-01-15 date_created: 2018-12-11T11:50:39Z date_published: 2017-01-01T00:00:00Z date_updated: 2023-11-30T10:55:36Z day: '01' department: - _id: KrCh doi: 10.1145/3009837.3009873 ec_funded: 1 external_id: isi: - '000408311200013' intvolume: ' 52' isi: 1 issue: '1' language: - iso: eng main_file_link: - open_access: '1' url: https://arxiv.org/abs/1611.01063 month: '01' oa: 1 oa_version: Submitted Version page: 145 - 160 project: - _id: 25832EC2-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: S 11407_N23 name: Rigorous Systems Engineering - _id: 25F5A88A-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: S11402-N23 name: Moderne Concurrency Paradigms - _id: 2581B60A-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '279307' name: 'Quantitative Graph Games: Theory and Applications' - _id: 25681D80-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '291734' name: International IST Postdoc Fellowship Programme publication_identifier: issn: - '07308566' publication_status: published publisher: ACM publist_id: '6157' quality_controlled: '1' related_material: record: - id: '14539' relation: dissertation_contains status: public scopus_import: '1' status: public title: Stochastic invariants for probabilistic termination type: conference user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1 volume: 52 year: '2017' ... --- _id: '5559' abstract: - lang: eng text: Strong amplifiers of natural selection article_processing_charge: No author: - first_name: Andreas full_name: Pavlogiannis, Andreas id: 49704004-F248-11E8-B48F-1D18A9856A87 last_name: Pavlogiannis orcid: 0000-0002-8943-0722 - first_name: Josef full_name: Tkadlec, Josef id: 3F24CCC8-F248-11E8-B48F-1D18A9856A87 last_name: Tkadlec orcid: 0000-0002-1097-9684 - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Martin full_name: Nowak , Martin last_name: 'Nowak ' citation: ama: Pavlogiannis A, Tkadlec J, Chatterjee K, Nowak M. Strong amplifiers of natural selection. 2017. doi:10.15479/AT:ISTA:51 apa: Pavlogiannis, A., Tkadlec, J., Chatterjee, K., & Nowak , M. (2017). Strong amplifiers of natural selection. Institute of Science and Technology Austria. https://doi.org/10.15479/AT:ISTA:51 chicago: Pavlogiannis, Andreas, Josef Tkadlec, Krishnendu Chatterjee, and Martin Nowak . “Strong Amplifiers of Natural Selection.” Institute of Science and Technology Austria, 2017. https://doi.org/10.15479/AT:ISTA:51. ieee: A. Pavlogiannis, J. Tkadlec, K. Chatterjee, and M. Nowak , “Strong amplifiers of natural selection.” Institute of Science and Technology Austria, 2017. ista: Pavlogiannis A, Tkadlec J, Chatterjee K, Nowak M. 2017. Strong amplifiers of natural selection, Institute of Science and Technology Austria, 10.15479/AT:ISTA:51. mla: Pavlogiannis, Andreas, et al. Strong Amplifiers of Natural Selection. Institute of Science and Technology Austria, 2017, doi:10.15479/AT:ISTA:51. short: A. Pavlogiannis, J. Tkadlec, K. Chatterjee, M. Nowak , (2017). datarep_id: '51' date_created: 2018-12-12T12:31:32Z date_published: 2017-01-02T00:00:00Z date_updated: 2024-02-21T13:48:42Z day: '02' ddc: - '519' department: - _id: KrCh doi: 10.15479/AT:ISTA:51 ec_funded: 1 file: - access_level: open_access checksum: b427dd46a30096a1911b245640c47af8 content_type: video/mp4 creator: system date_created: 2018-12-12T13:05:18Z date_updated: 2020-07-14T12:47:02Z file_id: '5644' file_name: IST-2017-51-v1+2_illustration.mp4 file_size: 32987015 relation: main_file file_date_updated: 2020-07-14T12:47:02Z has_accepted_license: '1' keyword: - natural selection month: '01' oa: 1 oa_version: Published Version project: - _id: 2581B60A-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '279307' name: 'Quantitative Graph Games: Theory and Applications' publisher: Institute of Science and Technology Austria related_material: record: - id: '5452' relation: research_paper status: public - id: '5751' relation: research_paper status: public status: public title: Strong amplifiers of natural selection type: research_data user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 year: '2017' ... --- _id: '639' abstract: - lang: eng text: We study the problem of developing efficient approaches for proving worst-case bounds of non-deterministic recursive programs. Ranking functions are sound and complete for proving termination and worst-case bounds of non-recursive programs. First, we apply ranking functions to recursion, resulting in measure functions, and show that they provide a sound and complete approach to prove worst-case bounds of non-deterministic recursive programs. Our second contribution is the synthesis of measure functions in non-polynomial forms. We show that non-polynomial measure functions with logarithm and exponentiation can be synthesized through abstraction of logarithmic or exponentiation terms, Farkas’ Lemma, and Handelman’s Theorem using linear programming. While previous methods obtain worst-case polynomial bounds, our approach can synthesize bounds of the form O(n log n) as well as O(nr) where r is not an integer. We present experimental results to demonstrate that our approach can efficiently obtain worst-case bounds of classical recursive algorithms such as Merge-Sort, Closest-Pair, Karatsuba’s algorithm and Strassen’s algorithm. alternative_title: - LNCS article_processing_charge: No author: - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Hongfei full_name: Fu, Hongfei last_name: Fu - first_name: Amir full_name: Goharshady, Amir id: 391365CE-F248-11E8-B48F-1D18A9856A87 last_name: Goharshady orcid: 0000-0003-1702-6584 citation: ama: 'Chatterjee K, Fu H, Goharshady AK. Non-polynomial worst case analysis of recursive programs. In: Majumdar R, Kunčak V, eds. Vol 10427. Springer; 2017:41-63. doi:10.1007/978-3-319-63390-9_3' apa: 'Chatterjee, K., Fu, H., & Goharshady, A. K. (2017). Non-polynomial worst case analysis of recursive programs. In R. Majumdar & V. Kunčak (Eds.) (Vol. 10427, pp. 41–63). Presented at the CAV: Computer Aided Verification, Heidelberg, Germany: Springer. https://doi.org/10.1007/978-3-319-63390-9_3' chicago: Chatterjee, Krishnendu, Hongfei Fu, and Amir Kafshdar Goharshady. “Non-Polynomial Worst Case Analysis of Recursive Programs.” edited by Rupak Majumdar and Viktor Kunčak, 10427:41–63. Springer, 2017. https://doi.org/10.1007/978-3-319-63390-9_3. ieee: 'K. Chatterjee, H. Fu, and A. K. Goharshady, “Non-polynomial worst case analysis of recursive programs,” presented at the CAV: Computer Aided Verification, Heidelberg, Germany, 2017, vol. 10427, pp. 41–63.' ista: 'Chatterjee K, Fu H, Goharshady AK. 2017. Non-polynomial worst case analysis of recursive programs. CAV: Computer Aided Verification, LNCS, vol. 10427, 41–63.' mla: Chatterjee, Krishnendu, et al. Non-Polynomial Worst Case Analysis of Recursive Programs. Edited by Rupak Majumdar and Viktor Kunčak, vol. 10427, Springer, 2017, pp. 41–63, doi:10.1007/978-3-319-63390-9_3. short: K. Chatterjee, H. Fu, A.K. Goharshady, in:, R. Majumdar, V. Kunčak (Eds.), Springer, 2017, pp. 41–63. conference: end_date: 2017-07-28 location: Heidelberg, Germany name: 'CAV: Computer Aided Verification' start_date: 2017-07-24 date_created: 2018-12-11T11:47:39Z date_published: 2017-01-01T00:00:00Z date_updated: 2024-03-28T23:30:33Z day: '01' department: - _id: KrCh doi: 10.1007/978-3-319-63390-9_3 ec_funded: 1 editor: - first_name: Rupak full_name: Majumdar, Rupak last_name: Majumdar - first_name: Viktor full_name: Kunčak, Viktor last_name: Kunčak external_id: arxiv: - '1705.00317' intvolume: ' 10427' language: - iso: eng main_file_link: - open_access: '1' url: https://arxiv.org/abs/1705.00317 month: '01' oa: 1 oa_version: Submitted Version page: 41 - 63 project: - _id: 25863FF4-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: S11407 name: Game Theory - _id: 2581B60A-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '279307' name: 'Quantitative Graph Games: Theory and Applications' publication_identifier: isbn: - 978-331963389-3 publication_status: published publisher: Springer publist_id: '7149' quality_controlled: '1' related_material: record: - id: '7014' relation: later_version status: public - id: '8934' relation: dissertation_contains status: public scopus_import: 1 status: public title: Non-polynomial worst case analysis of recursive programs type: conference user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 10427 year: '2017' ... --- _id: '949' abstract: - lang: eng text: The notion of treewidth of graphs has been exploited for faster algorithms for several problems arising in verification and program analysis. Moreover, various notions of balanced tree decompositions have been used for improved algorithms supporting dynamic updates and analysis of concurrent programs. In this work, we present a tool for constructing tree-decompositions of CFGs obtained from Java methods, which is implemented as an extension to the widely used Soot framework. The experimental results show that our implementation on real-world Java benchmarks is very efficient. Our tool also provides the first implementation for balancing tree-decompositions. In summary, we present the first tool support for exploiting treewidth in the static analysis problems on Java programs. alternative_title: - LNCS article_processing_charge: No author: - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Amir full_name: Goharshady, Amir id: 391365CE-F248-11E8-B48F-1D18A9856A87 last_name: Goharshady orcid: 0000-0003-1702-6584 - first_name: Andreas full_name: Pavlogiannis, Andreas id: 49704004-F248-11E8-B48F-1D18A9856A87 last_name: Pavlogiannis orcid: 0000-0002-8943-0722 citation: ama: 'Chatterjee K, Goharshady AK, Pavlogiannis A. JTDec: A tool for tree decompositions in soot. In: D’Souza D, ed. Vol 10482. Springer; 2017:59-66. doi:10.1007/978-3-319-68167-2_4' apa: 'Chatterjee, K., Goharshady, A. K., & Pavlogiannis, A. (2017). JTDec: A tool for tree decompositions in soot. In D. D’Souza (Ed.) (Vol. 10482, pp. 59–66). Presented at the ATVA: Automated Technology for Verification and Analysis, Pune, India: Springer. https://doi.org/10.1007/978-3-319-68167-2_4' chicago: 'Chatterjee, Krishnendu, Amir Kafshdar Goharshady, and Andreas Pavlogiannis. “JTDec: A Tool for Tree Decompositions in Soot.” edited by Deepak D’Souza, 10482:59–66. Springer, 2017. https://doi.org/10.1007/978-3-319-68167-2_4.' ieee: 'K. Chatterjee, A. K. Goharshady, and A. Pavlogiannis, “JTDec: A tool for tree decompositions in soot,” presented at the ATVA: Automated Technology for Verification and Analysis, Pune, India, 2017, vol. 10482, pp. 59–66.' ista: 'Chatterjee K, Goharshady AK, Pavlogiannis A. 2017. JTDec: A tool for tree decompositions in soot. ATVA: Automated Technology for Verification and Analysis, LNCS, vol. 10482, 59–66.' mla: 'Chatterjee, Krishnendu, et al. JTDec: A Tool for Tree Decompositions in Soot. Edited by Deepak D’Souza, vol. 10482, Springer, 2017, pp. 59–66, doi:10.1007/978-3-319-68167-2_4.' short: K. Chatterjee, A.K. Goharshady, A. Pavlogiannis, in:, D. D’Souza (Ed.), Springer, 2017, pp. 59–66. conference: end_date: 2017-10-06 location: Pune, India name: 'ATVA: Automated Technology for Verification and Analysis' start_date: 2017-10-03 date_created: 2018-12-11T11:49:22Z date_published: 2017-01-01T00:00:00Z date_updated: 2024-03-28T23:30:35Z day: '01' ddc: - '005' department: - _id: KrCh doi: 10.1007/978-3-319-68167-2_4 ec_funded: 1 editor: - first_name: Deepak full_name: D'Souza, Deepak last_name: D'Souza external_id: isi: - '000723567800004' file: - access_level: open_access checksum: a0d9f5f94dc594c4e71e78525c9942f1 content_type: application/pdf creator: system date_created: 2018-12-12T10:10:45Z date_updated: 2020-07-14T12:48:16Z file_id: '4835' file_name: IST-2017-845-v1+1_2017_Chatterjee_JTDec.pdf file_size: 948514 relation: main_file file_date_updated: 2020-07-14T12:48:16Z has_accepted_license: '1' intvolume: ' 10482' isi: 1 language: - iso: eng month: '01' oa: 1 oa_version: Submitted Version page: 59 - 66 project: - _id: 25863FF4-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: S11407 name: Game Theory - _id: 2581B60A-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '279307' name: 'Quantitative Graph Games: Theory and Applications' publication_identifier: issn: - '03029743' publication_status: published publisher: Springer publist_id: '6468' pubrep_id: '845' quality_controlled: '1' related_material: record: - id: '8934' relation: dissertation_contains status: public scopus_import: '1' status: public title: 'JTDec: A tool for tree decompositions in soot' type: conference user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1 volume: 10482 year: '2017' ... --- _id: '1068' abstract: - lang: eng text: 'Games on graphs provide the appropriate framework to study several central problems in computer science, such as verification and synthesis of reactive systems. One of the most basic objectives for games on graphs is the liveness (or Büchi) objective that given a target set of vertices requires that some vertex in the target set is visited infinitely often. We study generalized Büchi objectives (i.e., conjunction of liveness objectives), and implications between two generalized Büchi objectives (known as GR(1) objectives), that arise in numerous applications in computer-aided verification. We present improved algorithms and conditional super-linear lower bounds based on widely believed assumptions about the complexity of (A1) combinatorial Boolean matrix multiplication and (A2) CNF-SAT. We consider graph games with n vertices, m edges, and generalized Büchi objectives with k conjunctions. First, we present an algorithm with running time O(k*n^2), improving the previously known O(k*n*m) and O(k^2*n^2) worst-case bounds. Our algorithm is optimal for dense graphs under (A1). Second, we show that the basic algorithm for the problem is optimal for sparse graphs when the target sets have constant size under (A2). Finally, we consider GR(1) objectives, with k_1 conjunctions in the antecedent and k_2 conjunctions in the consequent, and present an O(k_1 k_2 n^{2.5})-time algorithm, improving the previously known O(k_1*k_2*n*m)-time algorithm for m > n^{1.5}. ' acknowledgement: K. C., M. H., and W. D. are partially supported by the Vienna Science and Technology Fund (WWTF) through project ICT15-003. K. C. is partially supported by the Austrian Science Fund (FWF) NFN Grant No S11407-N23 (RiSE/SHiNE) and an ERC Start grant (279307 alternative_title: - LIPIcs article_number: '25' article_processing_charge: No author: - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Wolfgang full_name: Dvorák, Wolfgang last_name: Dvorák - first_name: Monika H full_name: Henzinger, Monika H id: 540c9bbd-f2de-11ec-812d-d04a5be85630 last_name: Henzinger orcid: 0000-0002-5008-6530 - first_name: Veronika full_name: Loitzenbauer, Veronika last_name: Loitzenbauer citation: ama: 'Chatterjee K, Dvorák W, Henzinger MH, Loitzenbauer V. Conditionally optimal algorithms for generalized Büchi Games. In: Vol 58. Schloss Dagstuhl - Leibniz-Zentrum für Informatik; 2016. doi:10.4230/LIPIcs.MFCS.2016.25' apa: 'Chatterjee, K., Dvorák, W., Henzinger, M. H., & Loitzenbauer, V. (2016). Conditionally optimal algorithms for generalized Büchi Games (Vol. 58). Presented at the MFCS: Mathematical Foundations of Computer Science (SG), Krakow, Poland: Schloss Dagstuhl - Leibniz-Zentrum für Informatik. https://doi.org/10.4230/LIPIcs.MFCS.2016.25' chicago: Chatterjee, Krishnendu, Wolfgang Dvorák, Monika H Henzinger, and Veronika Loitzenbauer. “Conditionally Optimal Algorithms for Generalized Büchi Games,” Vol. 58. Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2016. https://doi.org/10.4230/LIPIcs.MFCS.2016.25. ieee: 'K. Chatterjee, W. Dvorák, M. H. Henzinger, and V. Loitzenbauer, “Conditionally optimal algorithms for generalized Büchi Games,” presented at the MFCS: Mathematical Foundations of Computer Science (SG), Krakow, Poland, 2016, vol. 58.' ista: 'Chatterjee K, Dvorák W, Henzinger MH, Loitzenbauer V. 2016. Conditionally optimal algorithms for generalized Büchi Games. MFCS: Mathematical Foundations of Computer Science (SG), LIPIcs, vol. 58, 25.' mla: Chatterjee, Krishnendu, et al. Conditionally Optimal Algorithms for Generalized Büchi Games. Vol. 58, 25, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2016, doi:10.4230/LIPIcs.MFCS.2016.25. short: K. Chatterjee, W. Dvorák, M.H. Henzinger, V. Loitzenbauer, in:, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2016. conference: end_date: 2016-08-26 location: Krakow, Poland name: 'MFCS: Mathematical Foundations of Computer Science (SG)' start_date: 2016-08-22 date_created: 2018-12-11T11:49:58Z date_published: 2016-08-01T00:00:00Z date_updated: 2023-02-14T10:11:07Z day: '01' ddc: - '000' - '004' - '006' department: - _id: KrCh doi: 10.4230/LIPIcs.MFCS.2016.25 ec_funded: 1 file: - access_level: open_access content_type: application/pdf creator: system date_created: 2018-12-12T10:16:02Z date_updated: 2018-12-12T10:16:02Z file_id: '5187' file_name: IST-2017-779-v1+1_LIPIcs-MFCS-2016-25.pdf file_size: 632786 relation: main_file file_date_updated: 2018-12-12T10:16:02Z has_accepted_license: '1' intvolume: ' 58' language: - iso: eng month: '08' oa: 1 oa_version: Published Version project: - _id: 25892FC0-B435-11E9-9278-68D0E5697425 grant_number: ICT15-003 name: Efficient Algorithms for Computer Aided Verification - _id: 25832EC2-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: S 11407_N23 name: Rigorous Systems Engineering - _id: 2581B60A-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '279307' name: 'Quantitative Graph Games: Theory and Applications' publication_status: published publisher: Schloss Dagstuhl - Leibniz-Zentrum für Informatik publist_id: '6317' pubrep_id: '779' quality_controlled: '1' scopus_import: '1' status: public title: Conditionally optimal algorithms for generalized Büchi Games tmp: 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) short: CC BY (3.0) type: conference user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 58 year: '2016' ... --- _id: '1069' abstract: - lang: eng text: "The Continuous Skolem Problem asks whether a real-valued function satisfying a linear differen-\r\ntial equation has a zero in a given interval of real numbers. This is a fundamental reachability\r\nproblem for continuous linear dynamical systems, such as linear hybrid automata and continuous-\r\ntime Markov chains. Decidability of the problem is currently open – indeed decidability is open\r\neven for the sub-problem in which a zero is sought in a bounded interval. In this paper we show\r\ndecidability of the bounded problem subject to Schanuel’s Conjecture, a unifying conjecture in\r\ntranscendental number theory. We furthermore analyse the unbounded problem in terms of the\r\nfrequencies of the differential equation, that is, the imaginary parts of the characteristic roots.\r\nWe show that the unbounded problem can be reduced to the bounded problem if there is at most\r\none rationally linearly independent frequency, or if there are two rationally linearly independent\r\nfrequencies and all characteristic roots are simple. We complete the picture by showing that de-\r\ncidability of the unbounded problem in the case of two (or more) rationally linearly independent\r\nfrequencies would entail a major new effectiveness result in Diophantine approximation, namely\r\ncomputability of the Diophantine-approximation types of all real algebraic numbers." acknowledgement: 'Ventsislav Chonev is supported by Austrian Science Fund (FWF) NFN Grant No S11407-N23 (RiSE/SHiNE), ERC Start grant (279307: Graph Games), and ERC Advanced Grant (267989: QUAREM).' alternative_title: - LIPIcs article_number: '100' author: - first_name: Ventsislav K full_name: Chonev, Ventsislav K id: 36CBE2E6-F248-11E8-B48F-1D18A9856A87 last_name: Chonev - first_name: Joël full_name: Ouaknine, Joël last_name: Ouaknine - first_name: James full_name: Worrell, James last_name: Worrell citation: ama: 'Chonev VK, Ouaknine J, Worrell J. On the skolem problem for continuous linear dynamical systems. In: Vol 55. Schloss Dagstuhl- Leibniz-Zentrum fur Informatik; 2016. doi:10.4230/LIPIcs.ICALP.2016.100' apa: 'Chonev, V. K., Ouaknine, J., & Worrell, J. (2016). On the skolem problem for continuous linear dynamical systems (Vol. 55). Presented at the ICALP: Automata, Languages and Programming, Rome, Italy: Schloss Dagstuhl- Leibniz-Zentrum fur Informatik. https://doi.org/10.4230/LIPIcs.ICALP.2016.100' chicago: Chonev, Ventsislav K, Joël Ouaknine, and James Worrell. “On the Skolem Problem for Continuous Linear Dynamical Systems,” Vol. 55. Schloss Dagstuhl- Leibniz-Zentrum fur Informatik, 2016. https://doi.org/10.4230/LIPIcs.ICALP.2016.100. ieee: 'V. K. Chonev, J. Ouaknine, and J. Worrell, “On the skolem problem for continuous linear dynamical systems,” presented at the ICALP: Automata, Languages and Programming, Rome, Italy, 2016, vol. 55.' ista: 'Chonev VK, Ouaknine J, Worrell J. 2016. On the skolem problem for continuous linear dynamical systems. ICALP: Automata, Languages and Programming, LIPIcs, vol. 55, 100.' mla: Chonev, Ventsislav K., et al. On the Skolem Problem for Continuous Linear Dynamical Systems. Vol. 55, 100, Schloss Dagstuhl- Leibniz-Zentrum fur Informatik, 2016, doi:10.4230/LIPIcs.ICALP.2016.100. short: V.K. Chonev, J. Ouaknine, J. Worrell, in:, Schloss Dagstuhl- Leibniz-Zentrum fur Informatik, 2016. conference: end_date: 2016-07-15 location: Rome, Italy name: 'ICALP: Automata, Languages and Programming' start_date: 2016-07-12 date_created: 2018-12-11T11:49:59Z date_published: 2016-08-01T00:00:00Z date_updated: 2021-01-12T06:48:03Z day: '01' ddc: - '004' - '006' department: - _id: KrCh doi: 10.4230/LIPIcs.ICALP.2016.100 ec_funded: 1 file: - access_level: open_access content_type: application/pdf creator: system date_created: 2018-12-12T10:16:26Z date_updated: 2018-12-12T10:16:26Z file_id: '5213' file_name: IST-2017-778-v1+1_LIPIcs-ICALP-2016-100.pdf file_size: 521415 relation: main_file file_date_updated: 2018-12-12T10:16:26Z has_accepted_license: '1' intvolume: ' 55' language: - iso: eng month: '08' oa: 1 oa_version: Published Version project: - _id: 25832EC2-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: S 11407_N23 name: Rigorous Systems Engineering - _id: 2581B60A-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '279307' name: 'Quantitative Graph Games: Theory and Applications' - _id: 25EE3708-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '267989' name: Quantitative Reactive Modeling publication_status: published publisher: Schloss Dagstuhl- Leibniz-Zentrum fur Informatik publist_id: '6314' pubrep_id: '778' quality_controlled: '1' scopus_import: 1 status: public title: On the skolem problem for continuous linear dynamical systems tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: conference user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87 volume: 55 year: '2016' ... --- _id: '1070' abstract: - lang: eng text: 'We present a logic that extends CTL (Computation Tree Logic) with operators that express synchronization properties. A property is synchronized in a system if it holds in all paths of a certain length. The new logic is obtained by using the same path quantifiers and temporal operators as in CTL, but allowing a different order of the quantifiers. This small syntactic variation induces a logic that can express non-regular properties for which known extensions of MSO with equality of path length are undecidable. We show that our variant of CTL is decidable and that the model-checking problem is in Delta_3^P = P^{NP^NP}, and is DP-hard. We analogously consider quantifier exchange in extensions of CTL, and we present operators defined using basic operators of CTL* that express the occurrence of infinitely many synchronization points. We show that the model-checking problem remains in Delta_3^P. The distinguishing power of CTL and of our new logic coincide if the Next operator is allowed in the logics, thus the classical bisimulation quotient can be used for state-space reduction before model checking. ' acknowledgement: "This research was partially supported by Austrian Science Fund (FWF) NFN Grant No S11407-N23 (RiSE/SHiNE), ERC Start grant (279307: Graph Games), Vienna Science and Technology Fund (WWTF) through project ICT15-003, and European project Cassting (FP7-601148).\r\n\r\nWe thank Stefan Göller and anonymous reviewers for their insightful\r\ncomments and suggestions.\r\n" alternative_title: - LIPIcs article_number: '98' author: - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Laurent full_name: Doyen, Laurent last_name: Doyen citation: ama: 'Chatterjee K, Doyen L. Computation tree logic for synchronization properties. In: Vol 55. Schloss Dagstuhl- Leibniz-Zentrum fur Informatik; 2016. doi:10.4230/LIPIcs.ICALP.2016.98' apa: 'Chatterjee, K., & Doyen, L. (2016). Computation tree logic for synchronization properties (Vol. 55). Presented at the ICALP: Automata, Languages and Programming, Rome, Italy: Schloss Dagstuhl- Leibniz-Zentrum fur Informatik. https://doi.org/10.4230/LIPIcs.ICALP.2016.98' chicago: Chatterjee, Krishnendu, and Laurent Doyen. “Computation Tree Logic for Synchronization Properties,” Vol. 55. Schloss Dagstuhl- Leibniz-Zentrum fur Informatik, 2016. https://doi.org/10.4230/LIPIcs.ICALP.2016.98. ieee: 'K. Chatterjee and L. Doyen, “Computation tree logic for synchronization properties,” presented at the ICALP: Automata, Languages and Programming, Rome, Italy, 2016, vol. 55.' ista: 'Chatterjee K, Doyen L. 2016. Computation tree logic for synchronization properties. ICALP: Automata, Languages and Programming, LIPIcs, vol. 55, 98.' mla: Chatterjee, Krishnendu, and Laurent Doyen. Computation Tree Logic for Synchronization Properties. Vol. 55, 98, Schloss Dagstuhl- Leibniz-Zentrum fur Informatik, 2016, doi:10.4230/LIPIcs.ICALP.2016.98. short: K. Chatterjee, L. Doyen, in:, Schloss Dagstuhl- Leibniz-Zentrum fur Informatik, 2016. conference: end_date: 2016-07-15 location: Rome, Italy name: 'ICALP: Automata, Languages and Programming' start_date: 2016-07-12 date_created: 2018-12-11T11:49:59Z date_published: 2016-01-01T00:00:00Z date_updated: 2021-01-12T06:48:03Z day: '01' ddc: - '005' department: - _id: KrCh doi: 10.4230/LIPIcs.ICALP.2016.98 ec_funded: 1 file: - access_level: open_access content_type: application/pdf creator: system date_created: 2018-12-12T10:08:52Z date_updated: 2018-12-12T10:08:52Z file_id: '4714' file_name: IST-2017-812-v1+1_LIPIcs-ICALP-2016-98.pdf file_size: 546133 relation: main_file file_date_updated: 2018-12-12T10:08:52Z has_accepted_license: '1' intvolume: ' 55' language: - iso: eng month: '01' oa: 1 oa_version: Published Version project: - _id: 25832EC2-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: S 11407_N23 name: Rigorous Systems Engineering - _id: 2581B60A-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '279307' name: 'Quantitative Graph Games: Theory and Applications' - _id: 25892FC0-B435-11E9-9278-68D0E5697425 grant_number: ICT15-003 name: Efficient Algorithms for Computer Aided Verification publication_status: published publisher: Schloss Dagstuhl- Leibniz-Zentrum fur Informatik publist_id: '6313' pubrep_id: '812' quality_controlled: '1' scopus_import: 1 status: public title: Computation tree logic for synchronization properties tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: conference user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87 volume: 55 year: '2016' ... --- _id: '1090' abstract: - lang: eng text: ' While weighted automata provide a natural framework to express quantitative properties, many basic properties like average response time cannot be expressed with weighted automata. Nested weighted automata extend weighted automata and consist of a master automaton and a set of slave automata that are invoked by the master automaton. Nested weighted automata are strictly more expressive than weighted automata (e.g., average response time can be expressed with nested weighted automata), but the basic decision questions have higher complexity (e.g., for deterministic automata, the emptiness question for nested weighted automata is PSPACE-hard, whereas the corresponding complexity for weighted automata is PTIME). We consider a natural subclass of nested weighted automata where at any point at most a bounded number k of slave automata can be active. We focus on automata whose master value function is the limit average. We show that these nested weighted automata with bounded width are strictly more expressive than weighted automata (e.g., average response time with no overlapping requests can be expressed with bound k=1, but not with non-nested weighted automata). We show that the complexity of the basic decision problems (i.e., emptiness and universality) for the subclass with k constant matches the complexity for weighted automata. Moreover, when k is part of the input given in unary we establish PSPACE-completeness.' acknowledgement: "This research was supported in part by the Austrian Science Fund (FWF) under grants S11402-N23\r\n(RiSE/SHiNE) and Z211-N23 (Wittgenstein Award), ERC Start grant (279307: Graph Games), Vienna\r\nScience and Technology Fund (WWTF) through project ICT15-003 and by the National Science Centre\r\n(NCN), Poland under grant 2014/15/D/ST6/04543." alternative_title: - LIPIcs article_number: '24' author: - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Thomas A full_name: Henzinger, Thomas A id: 40876CD8-F248-11E8-B48F-1D18A9856A87 last_name: Henzinger orcid: 0000−0002−2985−7724 - first_name: Jan full_name: Otop, Jan id: 2FC5DA74-F248-11E8-B48F-1D18A9856A87 last_name: Otop citation: ama: 'Chatterjee K, Henzinger TA, Otop J. Nested weighted limit-average automata of bounded width. In: Vol 58. Schloss Dagstuhl - Leibniz-Zentrum für Informatik; 2016. doi:10.4230/LIPIcs.MFCS.2016.24' apa: 'Chatterjee, K., Henzinger, T. A., & Otop, J. (2016). Nested weighted limit-average automata of bounded width (Vol. 58). Presented at the MFCS: Mathematical Foundations of Computer Science (SG), Krakow; Poland: Schloss Dagstuhl - Leibniz-Zentrum für Informatik. https://doi.org/10.4230/LIPIcs.MFCS.2016.24' chicago: Chatterjee, Krishnendu, Thomas A Henzinger, and Jan Otop. “Nested Weighted Limit-Average Automata of Bounded Width,” Vol. 58. Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2016. https://doi.org/10.4230/LIPIcs.MFCS.2016.24. ieee: 'K. Chatterjee, T. A. Henzinger, and J. Otop, “Nested weighted limit-average automata of bounded width,” presented at the MFCS: Mathematical Foundations of Computer Science (SG), Krakow; Poland, 2016, vol. 58.' ista: 'Chatterjee K, Henzinger TA, Otop J. 2016. Nested weighted limit-average automata of bounded width. MFCS: Mathematical Foundations of Computer Science (SG), LIPIcs, vol. 58, 24.' mla: Chatterjee, Krishnendu, et al. Nested Weighted Limit-Average Automata of Bounded Width. Vol. 58, 24, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2016, doi:10.4230/LIPIcs.MFCS.2016.24. short: K. Chatterjee, T.A. Henzinger, J. Otop, in:, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2016. conference: end_date: 2016-08-26 location: Krakow; Poland name: 'MFCS: Mathematical Foundations of Computer Science (SG)' start_date: 2016-08-22 date_created: 2018-12-11T11:50:05Z date_published: 2016-08-01T00:00:00Z date_updated: 2021-01-12T06:48:12Z day: '01' ddc: - '004' department: - _id: KrCh - _id: ToHe doi: 10.4230/LIPIcs.MFCS.2016.24 ec_funded: 1 file: - access_level: open_access content_type: application/pdf creator: system date_created: 2018-12-12T10:17:31Z date_updated: 2018-12-12T10:17:31Z file_id: '5286' file_name: IST-2017-795-v1+1_LIPIcs-MFCS-2016-24.pdf file_size: 564560 relation: main_file file_date_updated: 2018-12-12T10:17:31Z has_accepted_license: '1' intvolume: ' 58' language: - iso: eng month: '08' oa: 1 oa_version: Published Version project: - _id: 25832EC2-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: S 11407_N23 name: Rigorous Systems Engineering - _id: 25F42A32-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: Z211 name: The Wittgenstein Prize - _id: 2581B60A-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '279307' name: 'Quantitative Graph Games: Theory and Applications' - _id: 25892FC0-B435-11E9-9278-68D0E5697425 grant_number: ICT15-003 name: Efficient Algorithms for Computer Aided Verification publication_status: published publisher: Schloss Dagstuhl - Leibniz-Zentrum für Informatik publist_id: '6286' pubrep_id: '795' quality_controlled: '1' scopus_import: 1 status: public title: Nested weighted limit-average automata of bounded width tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: conference user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87 volume: 58 year: '2016' ... --- _id: '1138' abstract: - lang: eng text: Automata with monitor counters, where the transitions do not depend on counter values, and nested weighted automata are two expressive automata-theoretic frameworks for quantitative properties. For a well-studied and wide class of quantitative functions, we establish that automata with monitor counters and nested weighted automata are equivalent. We study for the first time such quantitative automata under probabilistic semantics. We show that several problems that are undecidable for the classical questions of emptiness and universality become decidable under the probabilistic semantics. We present a complete picture of decidability for such automata, and even an almost-complete picture of computational complexity, for the probabilistic questions we consider. © 2016 ACM. acknowledgement: This research was funded in part by the European Research Council (ERC) under grant agreement 267989 (QUAREM), by the Austrian Science Fund (FWF) projects S11402-N23 (RiSE) and Z211-N23 (Wittgenstein Award), FWF Grant No P23499- N23, FWF NFN Grant No S114 author: - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Thomas A full_name: Henzinger, Thomas A id: 40876CD8-F248-11E8-B48F-1D18A9856A87 last_name: Henzinger orcid: 0000−0002−2985−7724 - first_name: Jan full_name: Otop, Jan id: 2FC5DA74-F248-11E8-B48F-1D18A9856A87 last_name: Otop citation: ama: 'Chatterjee K, Henzinger TA, Otop J. Quantitative automata under probabilistic semantics. In: Proceedings of the 31st Annual ACM/IEEE Symposium. IEEE; 2016:76-85. doi:10.1145/2933575.2933588' apa: 'Chatterjee, K., Henzinger, T. A., & Otop, J. (2016). Quantitative automata under probabilistic semantics. In Proceedings of the 31st Annual ACM/IEEE Symposium (pp. 76–85). New York, NY, USA: IEEE. https://doi.org/10.1145/2933575.2933588' chicago: Chatterjee, Krishnendu, Thomas A Henzinger, and Jan Otop. “Quantitative Automata under Probabilistic Semantics.” In Proceedings of the 31st Annual ACM/IEEE Symposium, 76–85. IEEE, 2016. https://doi.org/10.1145/2933575.2933588. ieee: K. Chatterjee, T. A. Henzinger, and J. Otop, “Quantitative automata under probabilistic semantics,” in Proceedings of the 31st Annual ACM/IEEE Symposium, New York, NY, USA, 2016, pp. 76–85. ista: 'Chatterjee K, Henzinger TA, Otop J. 2016. Quantitative automata under probabilistic semantics. Proceedings of the 31st Annual ACM/IEEE Symposium. LICS: Logic in Computer Science, 76–85.' mla: Chatterjee, Krishnendu, et al. “Quantitative Automata under Probabilistic Semantics.” Proceedings of the 31st Annual ACM/IEEE Symposium, IEEE, 2016, pp. 76–85, doi:10.1145/2933575.2933588. short: K. Chatterjee, T.A. Henzinger, J. Otop, in:, Proceedings of the 31st Annual ACM/IEEE Symposium, IEEE, 2016, pp. 76–85. conference: end_date: 2016-07-08 location: New York, NY, USA name: 'LICS: Logic in Computer Science' start_date: 2016-07-05 date_created: 2018-12-11T11:50:21Z date_published: 2016-07-05T00:00:00Z date_updated: 2021-01-12T06:48:34Z day: '05' department: - _id: KrCh - _id: ToHe doi: 10.1145/2933575.2933588 ec_funded: 1 external_id: arxiv: - '1604.06764' language: - iso: eng main_file_link: - open_access: '1' url: https://arxiv.org/abs/1604.06764 month: '07' oa: 1 oa_version: Preprint page: 76 - 85 project: - _id: 25EE3708-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '267989' name: Quantitative Reactive Modeling - _id: 25832EC2-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: S 11407_N23 name: Rigorous Systems Engineering - _id: 25F42A32-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: Z211 name: The Wittgenstein Prize - _id: 2584A770-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: P 23499-N23 name: Modern Graph Algorithmic Techniques in Formal Verification - _id: 2581B60A-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '279307' name: 'Quantitative Graph Games: Theory and Applications' - _id: 25892FC0-B435-11E9-9278-68D0E5697425 grant_number: ICT15-003 name: Efficient Algorithms for Computer Aided Verification publication: Proceedings of the 31st Annual ACM/IEEE Symposium publication_status: published publisher: IEEE publist_id: '6220' quality_controlled: '1' scopus_import: 1 status: public title: Quantitative automata under probabilistic semantics type: conference user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 year: '2016' ... --- _id: '1140' abstract: - lang: eng text: 'Given a model of a system and an objective, the model-checking question asks whether the model satisfies the objective. We study polynomial-time problems in two classical models, graphs and Markov Decision Processes (MDPs), with respect to several fundamental -regular objectives, e.g., Rabin and Streett objectives. For many of these problems the best-known upper bounds are quadratic or cubic, yet no super-linear lower bounds are known. In this work our contributions are two-fold: First, we present several improved algorithms, and second, we present the first conditional super-linear lower bounds based on widely believed assumptions about the complexity of CNF-SAT and combinatorial Boolean matrix multiplication. A separation result for two models with respect to an objective means a conditional lower bound for one model that is strictly higher than the existing upper bound for the other model, and similarly for two objectives with respect to a model. Our results establish the following separation results: (1) A separation of models (graphs and MDPs) for disjunctive queries of reachability and Büchi objectives. (2) Two kinds of separations of objectives, both for graphs and MDPs, namely, (2a) the separation of dual objectives such as Streett/Rabin objectives, and (2b) the separation of conjunction and disjunction of multiple objectives of the same type such as safety, Büchi, and coBüchi. In summary, our results establish the first model and objective separation results for graphs and MDPs for various classical -regular objectives. Quite strikingly, we establish conditional lower bounds for the disjunction of objectives that are strictly higher than the existing upper bounds for the conjunction of the same objectives. © 2016 ACM.' acknowledgement: "K. C., M. H., and W. D. are partially supported by the \ Vienna\r\nScience and Technology Fund (WWTF) through project ICT15-003.\r\nK. C. is partially supported by the Austrian Science Fund (FWF)\r\nNFN Grant No S11407-N23 (RiSE/SHiNE) and an ERC Start grant\r\n(279307: Graph Games). For W. D., M. H., and V. L. the research\r\nleading to these results has received funding from the European\r\nResearch Council under the European Union’s Seventh Framework\r\nProgramme (FP/2007-2013) / ERC Grant Agreement no. 340506." alternative_title: - Proceedings Symposium on Logic in Computer Science article_processing_charge: No author: - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Wolfgang full_name: Dvoák, Wolfgang last_name: Dvoák - first_name: Monika H full_name: Henzinger, Monika H id: 540c9bbd-f2de-11ec-812d-d04a5be85630 last_name: Henzinger orcid: 0000-0002-5008-6530 - first_name: Veronika full_name: Loitzenbauer, Veronika last_name: Loitzenbauer citation: ama: 'Chatterjee K, Dvoák W, Henzinger MH, Loitzenbauer V. Model and objective separation with conditional lower bounds: disjunction is harder than conjunction. In: Proceedings of the 31st Annual ACM/IEEE Symposium on Logic in Computer Science. IEEE; 2016:197-206. doi:10.1145/2933575.2935304' apa: 'Chatterjee, K., Dvoák, W., Henzinger, M. H., & Loitzenbauer, V. (2016). Model and objective separation with conditional lower bounds: disjunction is harder than conjunction. In Proceedings of the 31st Annual ACM/IEEE Symposium on Logic in Computer Science (pp. 197–206). New York, NY, USA: IEEE. https://doi.org/10.1145/2933575.2935304' chicago: 'Chatterjee, Krishnendu, Wolfgang Dvoák, Monika H Henzinger, and Veronika Loitzenbauer. “Model and Objective Separation with Conditional Lower Bounds: Disjunction Is Harder than Conjunction.” In Proceedings of the 31st Annual ACM/IEEE Symposium on Logic in Computer Science, 197–206. IEEE, 2016. https://doi.org/10.1145/2933575.2935304.' ieee: 'K. Chatterjee, W. Dvoák, M. H. Henzinger, and V. Loitzenbauer, “Model and objective separation with conditional lower bounds: disjunction is harder than conjunction,” in Proceedings of the 31st Annual ACM/IEEE Symposium on Logic in Computer Science, New York, NY, USA, 2016, pp. 197–206.' ista: 'Chatterjee K, Dvoák W, Henzinger MH, Loitzenbauer V. 2016. Model and objective separation with conditional lower bounds: disjunction is harder than conjunction. Proceedings of the 31st Annual ACM/IEEE Symposium on Logic in Computer Science. LICS: Logic in Computer Science, Proceedings Symposium on Logic in Computer Science, , 197–206.' mla: 'Chatterjee, Krishnendu, et al. “Model and Objective Separation with Conditional Lower Bounds: Disjunction Is Harder than Conjunction.” Proceedings of the 31st Annual ACM/IEEE Symposium on Logic in Computer Science, IEEE, 2016, pp. 197–206, doi:10.1145/2933575.2935304.' short: K. Chatterjee, W. Dvoák, M.H. Henzinger, V. Loitzenbauer, in:, Proceedings of the 31st Annual ACM/IEEE Symposium on Logic in Computer Science, IEEE, 2016, pp. 197–206. conference: end_date: 2016-07-08 location: New York, NY, USA name: 'LICS: Logic in Computer Science' start_date: 2016-07-05 date_created: 2018-12-11T11:50:22Z date_published: 2016-07-05T00:00:00Z date_updated: 2022-09-09T11:46:17Z day: '05' department: - _id: KrCh doi: 10.1145/2933575.2935304 external_id: arxiv: - '1602.02670' language: - iso: eng main_file_link: - open_access: '1' url: https://arxiv.org/abs/1602.02670 month: '07' oa: 1 oa_version: Preprint page: 197 - 206 project: - _id: 25832EC2-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: S 11407_N23 name: Rigorous Systems Engineering - _id: 25892FC0-B435-11E9-9278-68D0E5697425 grant_number: ICT15-003 name: Efficient Algorithms for Computer Aided Verification publication: Proceedings of the 31st Annual ACM/IEEE Symposium on Logic in Computer Science publication_status: published publisher: IEEE publist_id: '6219' quality_controlled: '1' scopus_import: '1' status: public title: 'Model and objective separation with conditional lower bounds: disjunction is harder than conjunction' type: conference user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 year: '2016' ... --- _id: '1182' abstract: - lang: eng text: 'Balanced knockout tournaments are ubiquitous in sports competitions and are also used in decisionmaking and elections. The traditional computational question, that asks to compute a draw (optimal draw) that maximizes the winning probability for a distinguished player, has received a lot of attention. Previous works consider the problem where the pairwise winning probabilities are known precisely, while we study how robust is the winning probability with respect to small errors in the pairwise winning probabilities. First, we present several illuminating examples to establish: (a) there exist deterministic tournaments (where the pairwise winning probabilities are 0 or 1) where one optimal draw is much more robust than the other; and (b) in general, there exist tournaments with slightly suboptimal draws that are more robust than all the optimal draws. The above examples motivate the study of the computational problem of robust draws that guarantee a specified winning probability. Second, we present a polynomial-time algorithm for approximating the robustness of a draw for sufficiently small errors in pairwise winning probabilities, and obtain that the stated computational problem is NP-complete. We also show that two natural cases of deterministic tournaments where the optimal draw could be computed in polynomial time also admit polynomial-time algorithms to compute robust optimal draws.' author: - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Rasmus full_name: Ibsen-Jensen, Rasmus id: 3B699956-F248-11E8-B48F-1D18A9856A87 last_name: Ibsen-Jensen orcid: 0000-0003-4783-0389 - first_name: Josef full_name: Tkadlec, Josef id: 3F24CCC8-F248-11E8-B48F-1D18A9856A87 last_name: Tkadlec orcid: 0000-0002-1097-9684 citation: ama: 'Chatterjee K, Ibsen-Jensen R, Tkadlec J. Robust draws in balanced knockout tournaments. In: Vol 2016-January. AAAI Press; 2016:172-179.' apa: 'Chatterjee, K., Ibsen-Jensen, R., & Tkadlec, J. (2016). Robust draws in balanced knockout tournaments (Vol. 2016–January, pp. 172–179). Presented at the IJCAI: International Joint Conference on Artificial Intelligence, New York, NY, USA: AAAI Press.' chicago: Chatterjee, Krishnendu, Rasmus Ibsen-Jensen, and Josef Tkadlec. “Robust Draws in Balanced Knockout Tournaments,” 2016–January:172–79. AAAI Press, 2016. ieee: 'K. Chatterjee, R. Ibsen-Jensen, and J. Tkadlec, “Robust draws in balanced knockout tournaments,” presented at the IJCAI: International Joint Conference on Artificial Intelligence, New York, NY, USA, 2016, vol. 2016–January, pp. 172–179.' ista: 'Chatterjee K, Ibsen-Jensen R, Tkadlec J. 2016. Robust draws in balanced knockout tournaments. IJCAI: International Joint Conference on Artificial Intelligence vol. 2016–January, 172–179.' mla: Chatterjee, Krishnendu, et al. Robust Draws in Balanced Knockout Tournaments. Vol. 2016–January, AAAI Press, 2016, pp. 172–79. short: K. Chatterjee, R. Ibsen-Jensen, J. Tkadlec, in:, AAAI Press, 2016, pp. 172–179. conference: end_date: 2016-07-15 location: New York, NY, USA name: 'IJCAI: International Joint Conference on Artificial Intelligence' start_date: 2016-07-09 date_created: 2018-12-11T11:50:35Z date_published: 2016-01-01T00:00:00Z date_updated: 2023-02-21T10:04:26Z day: '01' department: - _id: KrCh ec_funded: 1 language: - iso: eng main_file_link: - open_access: '1' url: https://arxiv.org/abs/1604.05090v1 month: '01' oa: 1 oa_version: Preprint page: 172 - 179 project: - _id: 25832EC2-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: S 11407_N23 name: Rigorous Systems Engineering - _id: 25892FC0-B435-11E9-9278-68D0E5697425 grant_number: ICT15-003 name: Efficient Algorithms for Computer Aided Verification - _id: 2581B60A-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '279307' name: 'Quantitative Graph Games: Theory and Applications' - _id: 25EE3708-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '267989' name: Quantitative Reactive Modeling publication_status: published publisher: AAAI Press publist_id: '6171' quality_controlled: '1' related_material: link: - relation: table_of_contents url: https://www.ijcai.org/proceedings/2016 scopus_import: 1 status: public title: Robust draws in balanced knockout tournaments type: conference user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 2016-January year: '2016' ... --- _id: '1200' acknowledgement: C.H. acknowledges generous support from the ISTFELLOW program. author: - first_name: Christian full_name: Hilbe, Christian id: 2FDF8F3C-F248-11E8-B48F-1D18A9856A87 last_name: Hilbe orcid: 0000-0001-5116-955X - first_name: Arne full_name: Traulsen, Arne last_name: Traulsen citation: ama: 'Hilbe C, Traulsen A. Only the combination of mathematics and agent based simulations can leverage the full potential of evolutionary modeling: Comment on “Evolutionary game theory using agent-based methods” by C. Adami, J. Schossau and A. Hintze. Physics of Life Reviews. 2016;19:29-31. doi:10.1016/j.plrev.2016.10.004' apa: 'Hilbe, C., & Traulsen, A. (2016). Only the combination of mathematics and agent based simulations can leverage the full potential of evolutionary modeling: Comment on “Evolutionary game theory using agent-based methods” by C. Adami, J. Schossau and A. Hintze. Physics of Life Reviews. Elsevier. https://doi.org/10.1016/j.plrev.2016.10.004' chicago: 'Hilbe, Christian, and Arne Traulsen. “Only the Combination of Mathematics and Agent Based Simulations Can Leverage the Full Potential of Evolutionary Modeling: Comment on ‘Evolutionary Game Theory Using Agent-Based Methods’ by C. Adami, J. Schossau and A. Hintze.” Physics of Life Reviews. Elsevier, 2016. https://doi.org/10.1016/j.plrev.2016.10.004.' ieee: 'C. Hilbe and A. Traulsen, “Only the combination of mathematics and agent based simulations can leverage the full potential of evolutionary modeling: Comment on ‘Evolutionary game theory using agent-based methods’ by C. Adami, J. Schossau and A. Hintze,” Physics of Life Reviews, vol. 19. Elsevier, pp. 29–31, 2016.' ista: 'Hilbe C, Traulsen A. 2016. Only the combination of mathematics and agent based simulations can leverage the full potential of evolutionary modeling: Comment on “Evolutionary game theory using agent-based methods” by C. Adami, J. Schossau and A. Hintze. Physics of Life Reviews. 19, 29–31.' mla: 'Hilbe, Christian, and Arne Traulsen. “Only the Combination of Mathematics and Agent Based Simulations Can Leverage the Full Potential of Evolutionary Modeling: Comment on ‘Evolutionary Game Theory Using Agent-Based Methods’ by C. Adami, J. Schossau and A. Hintze.” Physics of Life Reviews, vol. 19, Elsevier, 2016, pp. 29–31, doi:10.1016/j.plrev.2016.10.004.' short: C. Hilbe, A. Traulsen, Physics of Life Reviews 19 (2016) 29–31. date_created: 2018-12-11T11:50:40Z date_published: 2016-12-01T00:00:00Z date_updated: 2021-01-12T06:49:03Z day: '01' ddc: - '530' department: - _id: KrCh doi: 10.1016/j.plrev.2016.10.004 ec_funded: 1 file: - access_level: open_access checksum: 95e6dc78278334b99dacbf8822509364 content_type: application/pdf creator: system date_created: 2018-12-12T10:11:02Z date_updated: 2020-07-14T12:44:39Z file_id: '4855' file_name: IST-2017-798-v1+1_comment_adami.pdf file_size: 171352 relation: main_file file_date_updated: 2020-07-14T12:44:39Z has_accepted_license: '1' intvolume: ' 19' language: - iso: eng month: '12' oa: 1 oa_version: Submitted Version page: 29 - 31 project: - _id: 25681D80-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '291734' name: International IST Postdoc Fellowship Programme publication: Physics of Life Reviews publication_status: published publisher: Elsevier publist_id: '6150' pubrep_id: '798' quality_controlled: '1' scopus_import: 1 status: public title: 'Only the combination of mathematics and agent based simulations can leverage the full potential of evolutionary modeling: Comment on “Evolutionary game theory using agent-based methods” by C. Adami, J. Schossau and A. Hintze' tmp: image: /images/cc_by_nc_nd.png legal_code_url: https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode name: Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) short: CC BY-NC-ND (4.0) type: journal_article user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87 volume: 19 year: '2016' ... --- _id: '1245' abstract: - lang: eng text: 'To facilitate collaboration in massive online classrooms, instructors must make many decisions. For instance, the following parameters need to be decided when designing a peer-feedback system where students review each others'' essays: the number of students each student must provide feedback to, an algorithm to map feedback providers to receivers, constraints that ensure students do not become free-riders (receiving feedback but not providing it), the best times to receive feedback to improve learning etc. While instructors can answer these questions by running experiments or invoking past experience, game-theoretic models with data from online learning platforms can identify better initial designs for further improvements. As an example, we explore the design space of a peer feedback system by modeling it using game theory. Our simulations show that incentivizing students to provide feedback requires the value obtained from receiving a feedback to exceed the cost of providing it by a large factor (greater than 7). Furthermore, hiding feedback from low-effort students incentivizes them to provide more feedback.' acknowledgement: 'ERC Start Grant Graph Games 279307 supported this research. ' author: - first_name: Vineet full_name: Pandey, Vineet last_name: Pandey - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X citation: ama: 'Pandey V, Chatterjee K. Game-theoretic models identify useful principles for peer collaboration in online learning platforms. In: Proceedings of the ACM Conference on Computer Supported Cooperative Work. Vol 26. ACM; 2016:365-368. doi:10.1145/2818052.2869122' apa: 'Pandey, V., & Chatterjee, K. (2016). Game-theoretic models identify useful principles for peer collaboration in online learning platforms. In Proceedings of the ACM Conference on Computer Supported Cooperative Work (Vol. 26, pp. 365–368). San Francisco, CA, USA: ACM. https://doi.org/10.1145/2818052.2869122' chicago: Pandey, Vineet, and Krishnendu Chatterjee. “Game-Theoretic Models Identify Useful Principles for Peer Collaboration in Online Learning Platforms.” In Proceedings of the ACM Conference on Computer Supported Cooperative Work, 26:365–68. ACM, 2016. https://doi.org/10.1145/2818052.2869122. ieee: V. Pandey and K. Chatterjee, “Game-theoretic models identify useful principles for peer collaboration in online learning platforms,” in Proceedings of the ACM Conference on Computer Supported Cooperative Work, San Francisco, CA, USA, 2016, vol. 26, no. Februar-2016, pp. 365–368. ista: 'Pandey V, Chatterjee K. 2016. Game-theoretic models identify useful principles for peer collaboration in online learning platforms. Proceedings of the ACM Conference on Computer Supported Cooperative Work. CSCW: Computer Supported Cooperative Work and Social Computing vol. 26, 365–368.' mla: Pandey, Vineet, and Krishnendu Chatterjee. “Game-Theoretic Models Identify Useful Principles for Peer Collaboration in Online Learning Platforms.” Proceedings of the ACM Conference on Computer Supported Cooperative Work, vol. 26, no. Februar-2016, ACM, 2016, pp. 365–68, doi:10.1145/2818052.2869122. short: V. Pandey, K. Chatterjee, in:, Proceedings of the ACM Conference on Computer Supported Cooperative Work, ACM, 2016, pp. 365–368. conference: end_date: 2016-03-02 location: San Francisco, CA, USA name: 'CSCW: Computer Supported Cooperative Work and Social Computing' start_date: 2016-02-26 date_created: 2018-12-11T11:50:55Z date_published: 2016-02-27T00:00:00Z date_updated: 2021-01-12T06:49:22Z day: '27' department: - _id: KrCh doi: 10.1145/2818052.2869122 ec_funded: 1 intvolume: ' 26' issue: Februar-2016 language: - iso: eng month: '02' oa_version: None page: 365 - 368 project: - _id: 2581B60A-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '279307' name: 'Quantitative Graph Games: Theory and Applications' publication: Proceedings of the ACM Conference on Computer Supported Cooperative Work publication_status: published publisher: ACM publist_id: '6083' quality_controlled: '1' scopus_import: 1 status: public title: Game-theoretic models identify useful principles for peer collaboration in online learning platforms type: conference user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87 volume: 26 year: '2016' ... --- _id: '1325' abstract: - lang: eng text: We study graphs and two-player games in which rewards are assigned to states, and the goal of the players is to satisfy or dissatisfy certain property of the generated outcome, given as a mean payoff property. Since the notion of mean-payoff does not reflect possible fluctuations from the mean-payoff along a run, we propose definitions and algorithms for capturing the stability of the system, and give algorithms for deciding if a given mean payoff and stability objective can be ensured in the system. acknowledgement: "The work has been supported by the Czech Science Foundation, grant No. 15-17564S, by EPSRC grant\r\nEP/M023656/1, and by the People Programme (Marie Curie Actions) of the European Union’s Seventh\r\nFramework Programme (FP7/2007-2013) under REA grant agreement no [291734]" alternative_title: - LIPIcs article_number: '10' author: - first_name: Tomáš full_name: Brázdil, Tomáš last_name: Brázdil - first_name: Vojtěch full_name: Forejt, Vojtěch last_name: Forejt - first_name: Antonín full_name: Kučera, Antonín last_name: Kučera - first_name: Petr full_name: Novotny, Petr id: 3CC3B868-F248-11E8-B48F-1D18A9856A87 last_name: Novotny citation: ama: 'Brázdil T, Forejt V, Kučera A, Novotný P. Stability in graphs and games. In: Vol 59. Schloss Dagstuhl - Leibniz-Zentrum für Informatik; 2016. doi:10.4230/LIPIcs.CONCUR.2016.10' apa: 'Brázdil, T., Forejt, V., Kučera, A., & Novotný, P. (2016). Stability in graphs and games (Vol. 59). Presented at the CONCUR: Concurrency Theory, Quebec City, Canada: Schloss Dagstuhl - Leibniz-Zentrum für Informatik. https://doi.org/10.4230/LIPIcs.CONCUR.2016.10' chicago: Brázdil, Tomáš, Vojtěch Forejt, Antonín Kučera, and Petr Novotný. “Stability in Graphs and Games,” Vol. 59. Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2016. https://doi.org/10.4230/LIPIcs.CONCUR.2016.10. ieee: 'T. Brázdil, V. Forejt, A. Kučera, and P. Novotný, “Stability in graphs and games,” presented at the CONCUR: Concurrency Theory, Quebec City, Canada, 2016, vol. 59.' ista: 'Brázdil T, Forejt V, Kučera A, Novotný P. 2016. Stability in graphs and games. CONCUR: Concurrency Theory, LIPIcs, vol. 59, 10.' mla: Brázdil, Tomáš, et al. Stability in Graphs and Games. Vol. 59, 10, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2016, doi:10.4230/LIPIcs.CONCUR.2016.10. short: T. Brázdil, V. Forejt, A. Kučera, P. Novotný, in:, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2016. conference: end_date: 2016-08-26 location: Quebec City, Canada name: 'CONCUR: Concurrency Theory' start_date: 2016-08-23 date_created: 2018-12-11T11:51:23Z date_published: 2016-08-01T00:00:00Z date_updated: 2021-01-12T06:49:53Z day: '01' ddc: - '004' department: - _id: KrCh doi: 10.4230/LIPIcs.CONCUR.2016.10 ec_funded: 1 file: - access_level: open_access checksum: 3c2dc6ab0358f8aa8f7aa7d6c1293159 content_type: application/pdf creator: system date_created: 2018-12-12T10:16:40Z date_updated: 2020-07-14T12:44:44Z file_id: '5229' file_name: IST-2016-665-v1+1_Forejt_et_al__Stability_in_graphs_and_games.pdf file_size: 553648 relation: main_file file_date_updated: 2020-07-14T12:44:44Z has_accepted_license: '1' intvolume: ' 59' language: - iso: eng month: '08' oa: 1 oa_version: Published Version project: - _id: 25681D80-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '291734' name: International IST Postdoc Fellowship Programme publication_status: published publisher: Schloss Dagstuhl - Leibniz-Zentrum für Informatik publist_id: '5944' pubrep_id: '665' quality_controlled: '1' scopus_import: 1 status: public title: Stability in graphs and games tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: conference user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87 volume: 59 year: '2016' ... --- _id: '1324' abstract: - lang: eng text: 'DEC-POMDPs extend POMDPs to a multi-agent setting, where several agents operate in an uncertain environment independently to achieve a joint objective. DEC-POMDPs have been studied with finite-horizon and infinite-horizon discounted-sum objectives, and there exist solvers both for exact and approximate solutions. In this work we consider Goal-DEC-POMDPs, where given a set of target states, the objective is to ensure that the target set is reached with minimal cost. We consider the indefinite-horizon (infinite-horizon with either discounted-sum, or undiscounted-sum, where absorbing goal states have zero-cost) problem. We present a new and novel method to solve the problem that extends methods for finite-horizon DEC-POMDPs and the RTDP-Bel approach for POMDPs. We present experimental results on several examples, and show that our approach presents promising results. Copyright ' author: - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Martin full_name: Chmelik, Martin id: 3624234E-F248-11E8-B48F-1D18A9856A87 last_name: Chmelik citation: ama: 'Chatterjee K, Chmelik M. Indefinite-horizon reachability in Goal-DEC-POMDPs. In: Proceedings of the Twenty-Sixth International Conference on International Conference on Automated Planning and Scheduling. Vol 2016-January. AAAI Press; 2016:88-96.' apa: 'Chatterjee, K., & Chmelik, M. (2016). Indefinite-horizon reachability in Goal-DEC-POMDPs. In Proceedings of the Twenty-Sixth International Conference on International Conference on Automated Planning and Scheduling (Vol. 2016–January, pp. 88–96). London, United Kingdom: AAAI Press.' chicago: Chatterjee, Krishnendu, and Martin Chmelik. “Indefinite-Horizon Reachability in Goal-DEC-POMDPs.” In Proceedings of the Twenty-Sixth International Conference on International Conference on Automated Planning and Scheduling, 2016–January:88–96. AAAI Press, 2016. ieee: K. Chatterjee and M. Chmelik, “Indefinite-horizon reachability in Goal-DEC-POMDPs,” in Proceedings of the Twenty-Sixth International Conference on International Conference on Automated Planning and Scheduling, London, United Kingdom, 2016, vol. 2016–January, pp. 88–96. ista: 'Chatterjee K, Chmelik M. 2016. Indefinite-horizon reachability in Goal-DEC-POMDPs. Proceedings of the Twenty-Sixth International Conference on International Conference on Automated Planning and Scheduling. ICAPS: International Conference on Automated Planning and Scheduling vol. 2016–January, 88–96.' mla: Chatterjee, Krishnendu, and Martin Chmelik. “Indefinite-Horizon Reachability in Goal-DEC-POMDPs.” Proceedings of the Twenty-Sixth International Conference on International Conference on Automated Planning and Scheduling, vol. 2016–January, AAAI Press, 2016, pp. 88–96. short: K. Chatterjee, M. Chmelik, in:, Proceedings of the Twenty-Sixth International Conference on International Conference on Automated Planning and Scheduling, AAAI Press, 2016, pp. 88–96. conference: end_date: 2016-06-17 location: London, United Kingdom name: 'ICAPS: International Conference on Automated Planning and Scheduling' start_date: 2016-06-12 date_created: 2018-12-11T11:51:22Z date_published: 2016-01-01T00:00:00Z date_updated: 2021-01-12T06:49:53Z day: '01' department: - _id: KrCh ec_funded: 1 language: - iso: eng main_file_link: - url: http://www.aaai.org/ocs/index.php/ICAPS/ICAPS16/paper/view/12999 month: '01' oa_version: None page: 88 - 96 project: - _id: 2584A770-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: P 23499-N23 name: Modern Graph Algorithmic Techniques in Formal Verification - _id: 2581B60A-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '279307' name: 'Quantitative Graph Games: Theory and Applications' - _id: 25832EC2-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: S 11407_N23 name: Rigorous Systems Engineering publication: Proceedings of the Twenty-Sixth International Conference on International Conference on Automated Planning and Scheduling publication_status: published publisher: AAAI Press publist_id: '5946' quality_controlled: '1' scopus_import: 1 status: public title: Indefinite-horizon reachability in Goal-DEC-POMDPs type: conference user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87 volume: 2016-January year: '2016' ... --- _id: '1327' abstract: - lang: eng text: 'We consider partially observable Markov decision processes (POMDPs) with a set of target states and positive integer costs associated with every transition. The traditional optimization objective (stochastic shortest path) asks to minimize the expected total cost until the target set is reached. We extend the traditional framework of POMDPs to model energy consumption, which represents a hard constraint. The energy levels may increase and decrease with transitions, and the hard constraint requires that the energy level must remain positive in all steps till the target is reached. First, we present a novel algorithm for solving POMDPs with energy levels, developing on existing POMDP solvers and using RTDP as its main method. Our second contribution is related to policy representation. For larger POMDP instances the policies computed by existing solvers are too large to be understandable. We present an automated procedure based on machine learning techniques that automatically extracts important decisions of the policy allowing us to compute succinct human readable policies. Finally, we show experimentally that our algorithm performs well and computes succinct policies on a number of POMDP instances from the literature that were naturally enhanced with energy levels. ' author: - first_name: Tomáš full_name: Brázdil, Tomáš last_name: Brázdil - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Martin full_name: Chmelik, Martin id: 3624234E-F248-11E8-B48F-1D18A9856A87 last_name: Chmelik - first_name: Anchit full_name: Gupta, Anchit last_name: Gupta - first_name: Petr full_name: Novotny, Petr id: 3CC3B868-F248-11E8-B48F-1D18A9856A87 last_name: Novotny citation: ama: 'Brázdil T, Chatterjee K, Chmelik M, Gupta A, Novotný P. Stochastic shortest path with energy constraints in POMDPs. In: Proceedings of the 15th International Conference on Autonomous Agents and Multiagent Systems. ACM; 2016:1465-1466.' apa: 'Brázdil, T., Chatterjee, K., Chmelik, M., Gupta, A., & Novotný, P. (2016). Stochastic shortest path with energy constraints in POMDPs. In Proceedings of the 15th International Conference on Autonomous Agents and Multiagent Systems (pp. 1465–1466). Singapore: ACM.' chicago: Brázdil, Tomáš, Krishnendu Chatterjee, Martin Chmelik, Anchit Gupta, and Petr Novotný. “Stochastic Shortest Path with Energy Constraints in POMDPs.” In Proceedings of the 15th International Conference on Autonomous Agents and Multiagent Systems, 1465–66. ACM, 2016. ieee: T. Brázdil, K. Chatterjee, M. Chmelik, A. Gupta, and P. Novotný, “Stochastic shortest path with energy constraints in POMDPs,” in Proceedings of the 15th International Conference on Autonomous Agents and Multiagent Systems, Singapore, 2016, pp. 1465–1466. ista: 'Brázdil T, Chatterjee K, Chmelik M, Gupta A, Novotný P. 2016. Stochastic shortest path with energy constraints in POMDPs. Proceedings of the 15th International Conference on Autonomous Agents and Multiagent Systems. AAMAS: Autonomous Agents & Multiagent Systems, 1465–1466.' mla: Brázdil, Tomáš, et al. “Stochastic Shortest Path with Energy Constraints in POMDPs.” Proceedings of the 15th International Conference on Autonomous Agents and Multiagent Systems, ACM, 2016, pp. 1465–66. short: T. Brázdil, K. Chatterjee, M. Chmelik, A. Gupta, P. Novotný, in:, Proceedings of the 15th International Conference on Autonomous Agents and Multiagent Systems, ACM, 2016, pp. 1465–1466. conference: end_date: 2016-05-13 location: Singapore name: 'AAMAS: Autonomous Agents & Multiagent Systems' start_date: 2016-05-09 date_created: 2018-12-11T11:51:23Z date_published: 2016-01-01T00:00:00Z date_updated: 2021-01-12T06:49:54Z day: '01' department: - _id: KrCh ec_funded: 1 language: - iso: eng main_file_link: - open_access: '1' url: https://arxiv.org/abs/1602.07565 month: '01' oa: 1 oa_version: Preprint page: 1465 - 1466 project: - _id: 2584A770-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: P 23499-N23 name: Modern Graph Algorithmic Techniques in Formal Verification - _id: 25832EC2-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: S 11407_N23 name: Rigorous Systems Engineering - _id: 25681D80-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '291734' name: International IST Postdoc Fellowship Programme - _id: 2581B60A-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '279307' name: 'Quantitative Graph Games: Theory and Applications' publication: Proceedings of the 15th International Conference on Autonomous Agents and Multiagent Systems publication_status: published publisher: ACM publist_id: '5942' quality_controlled: '1' scopus_import: 1 status: public title: Stochastic shortest path with energy constraints in POMDPs type: conference user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87 year: '2016' ... --- _id: '1326' abstract: - lang: eng text: 'Energy Markov Decision Processes (EMDPs) are finite-state Markov decision processes where each transition is assigned an integer counter update and a rational payoff. An EMDP configuration is a pair s(n), where s is a control state and n is the current counter value. The configurations are changed by performing transitions in the standard way. We consider the problem of computing a safe strategy (i.e., a strategy that keeps the counter non-negative) which maximizes the expected mean payoff. ' acknowledgement: The research was funded by the Czech Science Foundation Grant No. P202/12/G061 and by the People Programme (Marie Curie Actions) of the European Union’s Seventh Framework Programme (FP7/2007-2013) under REA grant agreement no [291734]. alternative_title: - LNCS author: - first_name: Tomáš full_name: Brázdil, Tomáš last_name: Brázdil - first_name: Antonín full_name: Kučera, Antonín last_name: Kučera - first_name: Petr full_name: Novotny, Petr id: 3CC3B868-F248-11E8-B48F-1D18A9856A87 last_name: Novotny citation: ama: 'Brázdil T, Kučera A, Novotný P. Optimizing the expected mean payoff in Energy Markov Decision Processes. In: Vol 9938. Springer; 2016:32-49. doi:10.1007/978-3-319-46520-3_3' apa: 'Brázdil, T., Kučera, A., & Novotný, P. (2016). Optimizing the expected mean payoff in Energy Markov Decision Processes (Vol. 9938, pp. 32–49). Presented at the ATVA: Automated Technology for Verification and Analysis, Chiba, Japan: Springer. https://doi.org/10.1007/978-3-319-46520-3_3' chicago: Brázdil, Tomáš, Antonín Kučera, and Petr Novotný. “Optimizing the Expected Mean Payoff in Energy Markov Decision Processes,” 9938:32–49. Springer, 2016. https://doi.org/10.1007/978-3-319-46520-3_3. ieee: 'T. Brázdil, A. Kučera, and P. Novotný, “Optimizing the expected mean payoff in Energy Markov Decision Processes,” presented at the ATVA: Automated Technology for Verification and Analysis, Chiba, Japan, 2016, vol. 9938, pp. 32–49.' ista: 'Brázdil T, Kučera A, Novotný P. 2016. Optimizing the expected mean payoff in Energy Markov Decision Processes. ATVA: Automated Technology for Verification and Analysis, LNCS, vol. 9938, 32–49.' mla: Brázdil, Tomáš, et al. Optimizing the Expected Mean Payoff in Energy Markov Decision Processes. Vol. 9938, Springer, 2016, pp. 32–49, doi:10.1007/978-3-319-46520-3_3. short: T. Brázdil, A. Kučera, P. Novotný, in:, Springer, 2016, pp. 32–49. conference: end_date: 2016-10-20 location: Chiba, Japan name: 'ATVA: Automated Technology for Verification and Analysis' start_date: 2016-10-17 date_created: 2018-12-11T11:51:23Z date_published: 2016-09-22T00:00:00Z date_updated: 2021-01-12T06:49:53Z day: '22' department: - _id: KrCh doi: 10.1007/978-3-319-46520-3_3 ec_funded: 1 intvolume: ' 9938' language: - iso: eng main_file_link: - open_access: '1' url: https://arxiv.org/abs/1607.00678 month: '09' oa: 1 oa_version: Preprint page: 32 - 49 project: - _id: 25681D80-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '291734' name: International IST Postdoc Fellowship Programme publication_status: published publisher: Springer publist_id: '5943' quality_controlled: '1' scopus_import: 1 status: public title: Optimizing the expected mean payoff in Energy Markov Decision Processes type: conference user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87 volume: 9938 year: '2016' ... --- _id: '1333' abstract: - lang: eng text: Social dilemmas force players to balance between personal and collective gain. In many dilemmas, such as elected governments negotiating climate-change mitigation measures, the decisions are made not by individual players but by their representatives. However, the behaviour of representatives in social dilemmas has not been investigated experimentally. Here inspired by the negotiations for greenhouse-gas emissions reductions, we experimentally study a collective-risk social dilemma that involves representatives deciding on behalf of their fellow group members. Representatives can be re-elected or voted out after each consecutive collective-risk game. Selfish players are preferentially elected and are hence found most frequently in the "representatives" treatment. Across all treatments, we identify the selfish players as extortioners. As predicted by our mathematical model, their steadfast strategies enforce cooperation from fair players who finally compensate almost completely the deficit caused by the extortionate co-players. Everybody gains, but the extortionate representatives and their groups gain the most. acknowledgement: We thank the students for participation; H.-J. Krambeck for writing the software for the game; H. Arndt, T. Bakker, L. Becks, H. Brendelberger, S. Dobler and T. Reusch for support; and the Max Planck Society for the Advancement of Science for funding. article_number: '10915' author: - first_name: Manfred full_name: Milinski, Manfred last_name: Milinski - first_name: Christian full_name: Hilbe, Christian id: 2FDF8F3C-F248-11E8-B48F-1D18A9856A87 last_name: Hilbe orcid: 0000-0001-5116-955X - first_name: Dirk full_name: Semmann, Dirk last_name: Semmann - first_name: Ralf full_name: Sommerfeld, Ralf last_name: Sommerfeld - first_name: Jochem full_name: Marotzke, Jochem last_name: Marotzke citation: ama: Milinski M, Hilbe C, Semmann D, Sommerfeld R, Marotzke J. Humans choose representatives who enforce cooperation in social dilemmas through extortion. Nature Communications. 2016;7. doi:10.1038/ncomms10915 apa: Milinski, M., Hilbe, C., Semmann, D., Sommerfeld, R., & Marotzke, J. (2016). Humans choose representatives who enforce cooperation in social dilemmas through extortion. Nature Communications. Nature Publishing Group. https://doi.org/10.1038/ncomms10915 chicago: Milinski, Manfred, Christian Hilbe, Dirk Semmann, Ralf Sommerfeld, and Jochem Marotzke. “Humans Choose Representatives Who Enforce Cooperation in Social Dilemmas through Extortion.” Nature Communications. Nature Publishing Group, 2016. https://doi.org/10.1038/ncomms10915. ieee: M. Milinski, C. Hilbe, D. Semmann, R. Sommerfeld, and J. Marotzke, “Humans choose representatives who enforce cooperation in social dilemmas through extortion,” Nature Communications, vol. 7. Nature Publishing Group, 2016. ista: Milinski M, Hilbe C, Semmann D, Sommerfeld R, Marotzke J. 2016. Humans choose representatives who enforce cooperation in social dilemmas through extortion. Nature Communications. 7, 10915. mla: Milinski, Manfred, et al. “Humans Choose Representatives Who Enforce Cooperation in Social Dilemmas through Extortion.” Nature Communications, vol. 7, 10915, Nature Publishing Group, 2016, doi:10.1038/ncomms10915. short: M. Milinski, C. Hilbe, D. Semmann, R. Sommerfeld, J. Marotzke, Nature Communications 7 (2016). date_created: 2018-12-11T11:51:25Z date_published: 2016-03-07T00:00:00Z date_updated: 2021-01-12T06:49:57Z day: '07' ddc: - '519' - '530' - '599' department: - _id: KrCh doi: 10.1038/ncomms10915 file: - access_level: open_access checksum: 9ea0d7ce59a555a1cb8353d5559407cb content_type: application/pdf creator: system date_created: 2018-12-12T10:10:44Z date_updated: 2020-07-14T12:44:44Z file_id: '4834' file_name: IST-2016-661-v1+1_ncomms10915.pdf file_size: 1432577 relation: main_file file_date_updated: 2020-07-14T12:44:44Z has_accepted_license: '1' intvolume: ' 7' language: - iso: eng month: '03' oa: 1 oa_version: Published Version publication: Nature Communications publication_status: published publisher: Nature Publishing Group publist_id: '5935' pubrep_id: '661' quality_controlled: '1' scopus_import: 1 status: public title: Humans choose representatives who enforce cooperation in social dilemmas through extortion tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: journal_article user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87 volume: 7 year: '2016' ...