[{"project":[{"call_identifier":"FWF","_id":"2584A770-B435-11E9-9278-68D0E5697425","grant_number":"P 23499-N23","name":"Modern Graph Algorithmic Techniques in Formal Verification"},{"_id":"25F5A88A-B435-11E9-9278-68D0E5697425","name":"Moderne Concurrency Paradigms","grant_number":"S11402-N23","call_identifier":"FWF"},{"call_identifier":"FWF","name":"Game Theory","grant_number":"S11407","_id":"25863FF4-B435-11E9-9278-68D0E5697425"},{"name":"Quantitative Graph Games: Theory and Applications","grant_number":"279307","_id":"2581B60A-B435-11E9-9278-68D0E5697425","call_identifier":"FP7"},{"_id":"25892FC0-B435-11E9-9278-68D0E5697425","name":"Efficient Algorithms for Computer Aided Verification","grant_number":"ICT15-003"}],"language":[{"iso":"eng"}],"month":"04","day":"01","ddc":["004"],"intvolume":"       146","publication_status":"published","file":[{"date_updated":"2020-07-14T12:46:35Z","file_id":"5260","file_size":100115,"file_name":"IST-2018-952-v1+1_2014_Rubin_First_cycle.pdf","checksum":"4d7b4ab82980cca2b96ac7703992a8c8","relation":"main_file","access_level":"open_access","creator":"system","content_type":"application/pdf","date_created":"2018-12-12T10:17:08Z"}],"license":"https://creativecommons.org/licenses/by/4.0/","scopus_import":1,"quality_controlled":"1","date_published":"2014-04-01T00:00:00Z","author":[{"last_name":"Aminof","first_name":"Benjamin","id":"4A55BD00-F248-11E8-B48F-1D18A9856A87","full_name":"Aminof, Benjamin"},{"last_name":"Rubin","first_name":"Sasha","id":"2EC51194-F248-11E8-B48F-1D18A9856A87","full_name":"Rubin, Sasha"}],"pubrep_id":"952","date_updated":"2021-01-12T08:00:53Z","alternative_title":["EPTCS"],"doi":"10.4204/EPTCS.146.11","tmp":{"image":"/images/cc_by.png","short":"CC BY (4.0)","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode"},"conference":{"location":"Grenoble, France","start_date":"2014-04-05","name":"SR: Strategic Reasoning","end_date":"2014-04-06"},"file_date_updated":"2020-07-14T12:46:35Z","citation":{"ieee":"B. Aminof and S. Rubin, “First cycle games,” in <i>Electronic Proceedings in Theoretical Computer Science, EPTCS</i>, Grenoble, France, 2014, vol. 146, pp. 83–90.","chicago":"Aminof, Benjamin, and Sasha Rubin. “First Cycle Games.” In <i>Electronic Proceedings in Theoretical Computer Science, EPTCS</i>, 146:83–90. Open Publishing Association, 2014. <a href=\"https://doi.org/10.4204/EPTCS.146.11\">https://doi.org/10.4204/EPTCS.146.11</a>.","apa":"Aminof, B., &#38; Rubin, S. (2014). First cycle games. In <i>Electronic Proceedings in Theoretical Computer Science, EPTCS</i> (Vol. 146, pp. 83–90). Grenoble, France: Open Publishing Association. <a href=\"https://doi.org/10.4204/EPTCS.146.11\">https://doi.org/10.4204/EPTCS.146.11</a>","ama":"Aminof B, Rubin S. First cycle games. In: <i>Electronic Proceedings in Theoretical Computer Science, EPTCS</i>. Vol 146. Open Publishing Association; 2014:83-90. doi:<a href=\"https://doi.org/10.4204/EPTCS.146.11\">10.4204/EPTCS.146.11</a>","mla":"Aminof, Benjamin, and Sasha Rubin. “First Cycle Games.” <i>Electronic Proceedings in Theoretical Computer Science, EPTCS</i>, vol. 146, Open Publishing Association, 2014, pp. 83–90, doi:<a href=\"https://doi.org/10.4204/EPTCS.146.11\">10.4204/EPTCS.146.11</a>.","ista":"Aminof B, Rubin S. 2014. First cycle games. Electronic Proceedings in Theoretical Computer Science, EPTCS. SR: Strategic Reasoning, EPTCS, vol. 146, 83–90.","short":"B. Aminof, S. Rubin, in:, Electronic Proceedings in Theoretical Computer Science, EPTCS, Open Publishing Association, 2014, pp. 83–90."},"oa":1,"status":"public","_id":"475","has_accepted_license":"1","year":"2014","page":"83 - 90","volume":146,"type":"conference","user_id":"4435EBFC-F248-11E8-B48F-1D18A9856A87","abstract":[{"lang":"eng","text":"First cycle games (FCG) are played on a finite graph by two players who push a token along the edges until a vertex is repeated, and a simple cycle is formed. The winner is determined by some fixed property Y of the sequence of labels of the edges (or nodes) forming this cycle. These games are traditionally of interest because of their connection with infinite-duration games such as parity and mean-payoff games. We study the memory requirements for winning strategies of FCGs and certain associated infinite duration games. We exhibit a simple FCG that is not memoryless determined (this corrects a mistake in Memoryless determinacy of parity and mean payoff games: a simple proof by Bj⋯orklund, Sandberg, Vorobyov (2004) that claims that FCGs for which Y is closed under cyclic permutations are memoryless determined). We show that θ (n)! memory (where n is the number of nodes in the graph), which is always sufficient, may be necessary to win some FCGs. On the other hand, we identify easy to check conditions on Y (i.e., Y is closed under cyclic permutations, and both Y and its complement are closed under concatenation) that are sufficient to ensure that the corresponding FCGs and their associated infinite duration games are memoryless determined. We demonstrate that many games considered in the literature, such as mean-payoff, parity, energy, etc., satisfy these conditions. On the complexity side, we show (for efficiently computable Y) that while solving FCGs is in PSPACE, solving some families of FCGs is PSPACE-hard. "}],"oa_version":"Published Version","date_created":"2018-12-11T11:46:41Z","ec_funded":1,"publist_id":"7345","title":"First cycle games","department":[{"_id":"KrCh"}],"publication":"Electronic Proceedings in Theoretical Computer Science, EPTCS","publisher":"Open Publishing Association"},{"day":"01","month":"11","language":[{"iso":"eng"}],"project":[{"call_identifier":"FWF","_id":"2584A770-B435-11E9-9278-68D0E5697425","grant_number":"P 23499-N23","name":"Modern Graph Algorithmic Techniques in Formal Verification"},{"_id":"25863FF4-B435-11E9-9278-68D0E5697425","grant_number":"S11407","name":"Game Theory","call_identifier":"FWF"},{"name":"Quantitative Graph Games: Theory and Applications","grant_number":"279307","_id":"2581B60A-B435-11E9-9278-68D0E5697425","call_identifier":"FP7"},{"_id":"2587B514-B435-11E9-9278-68D0E5697425","name":"Microsoft Research Faculty Fellowship"}],"publication_status":"published","intvolume":"        70","main_file_link":[{"url":"https://arxiv.org/abs/1604.08234","open_access":"1"}],"article_processing_charge":"No","doi":"10.1007/s00453-013-9843-7","date_updated":"2023-09-05T14:09:29Z","related_material":{"record":[{"id":"10905","status":"public","relation":"earlier_version"}]},"author":[{"last_name":"Chatterjee","orcid":"0000-0002-4561-241X","first_name":"Krishnendu","id":"2E5DCA20-F248-11E8-B48F-1D18A9856A87","full_name":"Chatterjee, Krishnendu"},{"full_name":"Henzinger, Monika H","id":"540c9bbd-f2de-11ec-812d-d04a5be85630","first_name":"Monika H","orcid":"0000-0002-5008-6530","last_name":"Henzinger"},{"full_name":"Krinninger, Sebastian","last_name":"Krinninger","first_name":"Sebastian"},{"full_name":"Nanongkai, Danupon","first_name":"Danupon","last_name":"Nanongkai"}],"date_published":"2014-11-01T00:00:00Z","quality_controlled":"1","scopus_import":"1","issue":"3","article_type":"original","external_id":{"arxiv":["1604.08234"]},"status":"public","oa":1,"citation":{"ieee":"K. Chatterjee, M. H. Henzinger, S. Krinninger, and D. Nanongkai, “Polynomial-time algorithms for energy games with special weight structures,” <i>Algorithmica</i>, vol. 70, no. 3. Springer, pp. 457–492, 2014.","chicago":"Chatterjee, Krishnendu, Monika H Henzinger, Sebastian Krinninger, and Danupon Nanongkai. “Polynomial-Time Algorithms for Energy Games with Special Weight Structures.” <i>Algorithmica</i>. Springer, 2014. <a href=\"https://doi.org/10.1007/s00453-013-9843-7\">https://doi.org/10.1007/s00453-013-9843-7</a>.","apa":"Chatterjee, K., Henzinger, M. H., Krinninger, S., &#38; Nanongkai, D. (2014). Polynomial-time algorithms for energy games with special weight structures. <i>Algorithmica</i>. Springer. <a href=\"https://doi.org/10.1007/s00453-013-9843-7\">https://doi.org/10.1007/s00453-013-9843-7</a>","ama":"Chatterjee K, Henzinger MH, Krinninger S, Nanongkai D. Polynomial-time algorithms for energy games with special weight structures. <i>Algorithmica</i>. 2014;70(3):457-492. doi:<a href=\"https://doi.org/10.1007/s00453-013-9843-7\">10.1007/s00453-013-9843-7</a>","short":"K. Chatterjee, M.H. Henzinger, S. Krinninger, D. Nanongkai, Algorithmica 70 (2014) 457–492.","ista":"Chatterjee K, Henzinger MH, Krinninger S, Nanongkai D. 2014. Polynomial-time algorithms for energy games with special weight structures. Algorithmica. 70(3), 457–492.","mla":"Chatterjee, Krishnendu, et al. “Polynomial-Time Algorithms for Energy Games with Special Weight Structures.” <i>Algorithmica</i>, vol. 70, no. 3, Springer, 2014, pp. 457–92, doi:<a href=\"https://doi.org/10.1007/s00453-013-9843-7\">10.1007/s00453-013-9843-7</a>."},"user_id":"72615eeb-f1f3-11ec-aa25-d4573ddc34fd","type":"journal_article","volume":70,"page":"457 - 492","year":"2014","_id":"535","arxiv":1,"abstract":[{"lang":"eng","text":"Energy games belong to a class of turn-based two-player infinite-duration games played on a weighted directed graph. It is one of the rare and intriguing combinatorial problems that lie in NP∩co-NP, but are not known to be in P. The existence of polynomial-time algorithms has been a major open problem for decades and apart from pseudopolynomial algorithms there is no algorithm that solves any non-trivial subclass in polynomial time. In this paper, we give several results based on the weight structures of the graph. First, we identify a notion of penalty and present a polynomial-time algorithm when the penalty is large. Our algorithm is the first polynomial-time algorithm on a large class of weighted graphs. It includes several worst-case instances on which previous algorithms, such as value iteration and random facet algorithms, require at least sub-exponential time. Our main technique is developing the first non-trivial approximation algorithm and showing how to convert it to an exact algorithm. Moreover, we show that in a practical case in verification where weights are clustered around a constant number of values, the energy game problem can be solved in polynomial time. We also show that the problem is still as hard as in general when the clique-width is bounded or the graph is strongly ergodic, suggesting that restricting the graph structure does not necessarily help."}],"publisher":"Springer","publication":"Algorithmica","department":[{"_id":"KrCh"}],"title":"Polynomial-time algorithms for energy games with special weight structures","publist_id":"7282","ec_funded":1,"date_created":"2018-12-11T11:47:01Z","oa_version":"Preprint"},{"language":[{"iso":"eng"}],"month":"07","day":"19","ddc":["530","571"],"intvolume":"         4","publication_status":"published","file":[{"access_level":"open_access","creator":"system","relation":"main_file","date_created":"2018-12-12T10:11:31Z","content_type":"application/pdf","file_id":"4886","date_updated":"2020-07-14T12:46:38Z","checksum":"e32abf75a248e7a11811fd7f60858769","file_name":"IST-2018-934-v1+1_Prizak_et_al-2014-Ecology_and_Evolution.pdf","file_size":621582}],"scopus_import":1,"pubrep_id":"934","date_published":"2014-07-19T00:00:00Z","author":[{"first_name":"Roshan","last_name":"Prizak","full_name":"Prizak, Roshan","id":"4456104E-F248-11E8-B48F-1D18A9856A87"},{"full_name":"Ezard, Thomas","first_name":"Thomas","last_name":"Ezard"},{"full_name":"Hoyle, Rebecca","last_name":"Hoyle","first_name":"Rebecca"}],"doi":"10.1002/ece3.1150","date_updated":"2021-01-12T08:01:30Z","tmp":{"image":"/images/cc_by.png","short":"CC BY (4.0)","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode"},"file_date_updated":"2020-07-14T12:46:38Z","citation":{"apa":"Prizak, R., Ezard, T., &#38; Hoyle, R. (2014). Fitness consequences of maternal and grandmaternal effects. <i>Ecology and Evolution</i>. Wiley-Blackwell. <a href=\"https://doi.org/10.1002/ece3.1150\">https://doi.org/10.1002/ece3.1150</a>","chicago":"Prizak, Roshan, Thomas Ezard, and Rebecca Hoyle. “Fitness Consequences of Maternal and Grandmaternal Effects.” <i>Ecology and Evolution</i>. Wiley-Blackwell, 2014. <a href=\"https://doi.org/10.1002/ece3.1150\">https://doi.org/10.1002/ece3.1150</a>.","ieee":"R. Prizak, T. Ezard, and R. Hoyle, “Fitness consequences of maternal and grandmaternal effects,” <i>Ecology and Evolution</i>, vol. 4, no. 15. Wiley-Blackwell, pp. 3139–3145, 2014.","ista":"Prizak R, Ezard T, Hoyle R. 2014. Fitness consequences of maternal and grandmaternal effects. Ecology and Evolution. 4(15), 3139–3145.","short":"R. Prizak, T. Ezard, R. Hoyle, Ecology and Evolution 4 (2014) 3139–3145.","mla":"Prizak, Roshan, et al. “Fitness Consequences of Maternal and Grandmaternal Effects.” <i>Ecology and Evolution</i>, vol. 4, no. 15, Wiley-Blackwell, 2014, pp. 3139–45, doi:<a href=\"https://doi.org/10.1002/ece3.1150\">10.1002/ece3.1150</a>.","ama":"Prizak R, Ezard T, Hoyle R. Fitness consequences of maternal and grandmaternal effects. <i>Ecology and Evolution</i>. 2014;4(15):3139-3145. doi:<a href=\"https://doi.org/10.1002/ece3.1150\">10.1002/ece3.1150</a>"},"status":"public","oa":1,"issue":"15","_id":"537","has_accepted_license":"1","year":"2014","page":"3139 - 3145","volume":4,"type":"journal_article","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","abstract":[{"text":"Transgenerational effects are broader than only parental relationships. Despite mounting evidence that multigenerational effects alter phenotypic and life-history traits, our understanding of how they combine to determine fitness is not well developed because of the added complexity necessary to study them. Here, we derive a quantitative genetic model of adaptation to an extraordinary new environment by an additive genetic component, phenotypic plasticity, maternal and grandmaternal effects. We show how, at equilibrium, negative maternal and negative grandmaternal effects maximize expected population mean fitness. We define negative transgenerational effects as those that have a negative effect on trait expression in the subsequent generation, that is, they slow, or potentially reverse, the expected evolutionary dynamic. When maternal effects are positive, negative grandmaternal effects are preferred. As expected under Mendelian inheritance, the grandmaternal effects have a lower impact on fitness than the maternal effects, but this dual inheritance model predicts a more complex relationship between maternal and grandmaternal effects to constrain phenotypic variance and so maximize expected population mean fitness in the offspring.","lang":"eng"}],"oa_version":"Published Version","date_created":"2018-12-11T11:47:02Z","publist_id":"7280","department":[{"_id":"NiBa"},{"_id":"GaTk"}],"title":"Fitness consequences of maternal and grandmaternal effects","publication":"Ecology and Evolution","publisher":"Wiley-Blackwell"},{"abstract":[{"text":"Model-based testing is a promising technology for black-box software and hardware testing, in which test cases are generated automatically from high-level specifications. Nowadays, systems typically consist of multiple interacting components and, due to their complexity, testing presents a considerable portion of the effort and cost in the design process. Exploiting the compositional structure of system specifications can considerably reduce the effort in model-based testing. Moreover, inferring properties about the system from testing its individual components allows the designer to reduce the amount of integration testing.\r\nIn this paper, we study compositional properties of the IOCO-testing theory. We propose a new approach to composition and hiding operations, inspired by contract-based design and interface theories. These operations preserve behaviors that are compatible under composition and hiding, and prune away incompatible ones. The resulting specification characterizes the input sequences for which the unit testing of components is sufficient to infer the correctness of component integration without the need for further tests. We provide a methodology that uses these results to minimize integration testing effort, but also to detect potential weaknesses in specifications. While we focus on asynchronous models and the IOCO conformance relation, the resulting methodology can be applied to a broader class of systems.","lang":"eng"}],"alternative_title":["IST Austria Technical Report"],"date_updated":"2023-02-23T10:31:07Z","doi":"10.15479/AT:IST-2014-148-v2-1","related_material":{"record":[{"id":"2167","relation":"later_version","status":"public"}]},"date_published":"2014-01-28T00:00:00Z","author":[{"id":"49351290-F248-11E8-B48F-1D18A9856A87","full_name":"Daca, Przemyslaw","last_name":"Daca","first_name":"Przemyslaw"},{"first_name":"Thomas A","orcid":"0000−0002−2985−7724","last_name":"Henzinger","full_name":"Henzinger, Thomas A","id":"40876CD8-F248-11E8-B48F-1D18A9856A87"},{"full_name":"Krenn, Willibald","last_name":"Krenn","first_name":"Willibald"},{"last_name":"Nickovic","first_name":"Dejan","id":"41BCEE5C-F248-11E8-B48F-1D18A9856A87","full_name":"Nickovic, Dejan"}],"pubrep_id":"152","date_created":"2018-12-12T11:39:11Z","oa_version":"Published Version","publisher":"IST Austria","title":"Compositional specifications for IOCO testing","file_date_updated":"2020-07-14T12:46:46Z","department":[{"_id":"ToHe"}],"month":"01","language":[{"iso":"eng"}],"publication_identifier":{"issn":["2664-1690"]},"citation":{"chicago":"Daca, Przemyslaw, Thomas A Henzinger, Willibald Krenn, and Dejan Nickovic. <i>Compositional Specifications for IOCO Testing</i>. IST Austria, 2014. <a href=\"https://doi.org/10.15479/AT:IST-2014-148-v2-1\">https://doi.org/10.15479/AT:IST-2014-148-v2-1</a>.","ieee":"P. Daca, T. A. Henzinger, W. Krenn, and D. Nickovic, <i>Compositional specifications for IOCO testing</i>. IST Austria, 2014.","apa":"Daca, P., Henzinger, T. A., Krenn, W., &#38; Nickovic, D. (2014). <i>Compositional specifications for IOCO testing</i>. IST Austria. <a href=\"https://doi.org/10.15479/AT:IST-2014-148-v2-1\">https://doi.org/10.15479/AT:IST-2014-148-v2-1</a>","ama":"Daca P, Henzinger TA, Krenn W, Nickovic D. <i>Compositional Specifications for IOCO Testing</i>. IST Austria; 2014. doi:<a href=\"https://doi.org/10.15479/AT:IST-2014-148-v2-1\">10.15479/AT:IST-2014-148-v2-1</a>","ista":"Daca P, Henzinger TA, Krenn W, Nickovic D. 2014. Compositional specifications for IOCO testing, IST Austria, 20p.","mla":"Daca, Przemyslaw, et al. <i>Compositional Specifications for IOCO Testing</i>. IST Austria, 2014, doi:<a href=\"https://doi.org/10.15479/AT:IST-2014-148-v2-1\">10.15479/AT:IST-2014-148-v2-1</a>.","short":"P. Daca, T.A. Henzinger, W. Krenn, D. Nickovic, Compositional Specifications for IOCO Testing, IST Austria, 2014."},"ddc":["000"],"day":"28","status":"public","oa":1,"file":[{"creator":"system","access_level":"open_access","relation":"main_file","date_created":"2018-12-12T11:54:21Z","content_type":"application/pdf","date_updated":"2020-07-14T12:46:46Z","file_id":"5543","file_name":"IST-2014-148-v2+1_main_tr.pdf","checksum":"0e03aba625cc334141a3148432aa5760","file_size":534732}],"year":"2014","has_accepted_license":"1","publication_status":"published","_id":"5411","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","type":"technical_report","page":"20"},{"_id":"5412","has_accepted_license":"1","file":[{"file_size":423322,"file_name":"IST-2014-153-v1+1_main.pdf","checksum":"4d6cda4bebed970926403ad6ad8c745f","date_updated":"2020-07-14T12:46:47Z","file_id":"5500","content_type":"application/pdf","date_created":"2018-12-12T11:53:39Z","relation":"main_file","creator":"system","access_level":"open_access"}],"year":"2014","publication_status":"published","page":"31","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","type":"technical_report","citation":{"ama":"Chatterjee K, Daca P, Chmelik M. <i>CEGAR for Qualitative Analysis of Probabilistic Systems</i>. IST Austria; 2014. doi:<a href=\"https://doi.org/10.15479/AT:IST-2014-153-v1-1\">10.15479/AT:IST-2014-153-v1-1</a>","ista":"Chatterjee K, Daca P, Chmelik M. 2014. CEGAR for qualitative analysis of probabilistic systems, IST Austria, 31p.","short":"K. Chatterjee, P. Daca, M. Chmelik, CEGAR for Qualitative Analysis of Probabilistic Systems, IST Austria, 2014.","mla":"Chatterjee, Krishnendu, et al. <i>CEGAR for Qualitative Analysis of Probabilistic Systems</i>. IST Austria, 2014, doi:<a href=\"https://doi.org/10.15479/AT:IST-2014-153-v1-1\">10.15479/AT:IST-2014-153-v1-1</a>.","chicago":"Chatterjee, Krishnendu, Przemyslaw Daca, and Martin Chmelik. <i>CEGAR for Qualitative Analysis of Probabilistic Systems</i>. IST Austria, 2014. <a href=\"https://doi.org/10.15479/AT:IST-2014-153-v1-1\">https://doi.org/10.15479/AT:IST-2014-153-v1-1</a>.","ieee":"K. Chatterjee, P. Daca, and M. Chmelik, <i>CEGAR for qualitative analysis of probabilistic systems</i>. IST Austria, 2014.","apa":"Chatterjee, K., Daca, P., &#38; Chmelik, M. (2014). <i>CEGAR for qualitative analysis of probabilistic systems</i>. IST Austria. <a href=\"https://doi.org/10.15479/AT:IST-2014-153-v1-1\">https://doi.org/10.15479/AT:IST-2014-153-v1-1</a>"},"month":"01","language":[{"iso":"eng"}],"publication_identifier":{"issn":["2664-1690"]},"status":"public","oa":1,"ddc":["000"],"day":"29","date_created":"2018-12-12T11:39:11Z","oa_version":"Published Version","title":"CEGAR for qualitative analysis of probabilistic systems","file_date_updated":"2020-07-14T12:46:47Z","department":[{"_id":"KrCh"}],"publisher":"IST Austria","abstract":[{"text":"We consider Markov decision processes (MDPs) which are a standard model for probabilistic systems. We focus on qualitative properties for MDPs that can express that desired behaviors of the system arise almost-surely (with probability 1) or with positive probability.\r\nWe introduce a new simulation relation to capture the refinement relation of MDPs with respect to qualitative properties, and present discrete graph theoretic algorithms with quadratic complexity to compute the simulation relation.\r\nWe present an automated technique for assume-guarantee style reasoning for compositional analysis of MDPs with qualitative properties by giving a counter-example guided abstraction-refinement approach to compute our new simulation relation. We have implemented our algorithms and show that the compositional analysis leads to significant improvements. ","lang":"eng"}],"author":[{"full_name":"Chatterjee, Krishnendu","id":"2E5DCA20-F248-11E8-B48F-1D18A9856A87","first_name":"Krishnendu","orcid":"0000-0002-4561-241X","last_name":"Chatterjee"},{"id":"49351290-F248-11E8-B48F-1D18A9856A87","full_name":"Daca, Przemyslaw","last_name":"Daca","first_name":"Przemyslaw"},{"last_name":"Chmelik","first_name":"Martin","id":"3624234E-F248-11E8-B48F-1D18A9856A87","full_name":"Chmelik, Martin"}],"date_published":"2014-01-29T00:00:00Z","pubrep_id":"153","alternative_title":["IST Austria Technical Report"],"doi":"10.15479/AT:IST-2014-153-v1-1","date_updated":"2023-02-23T12:25:18Z","related_material":{"record":[{"id":"2063","status":"public","relation":"later_version"},{"status":"public","relation":"later_version","id":"5413"},{"id":"5414","status":"public","relation":"later_version"}]}},{"date_created":"2018-12-12T11:39:11Z","oa_version":"Published Version","publisher":"IST Austria","file_date_updated":"2020-07-14T12:46:47Z","title":"CEGAR for qualitative analysis of probabilistic systems","department":[{"_id":"KrCh"}],"abstract":[{"text":"We consider Markov decision processes (MDPs) which are a standard model for probabilistic systems. We focus on qualitative properties for MDPs that can express that desired behaviors of the system arise almost-surely (with probability 1) or with positive probability.\r\nWe introduce a new simulation relation to capture the refinement relation of MDPs with respect to qualitative properties, and present discrete graph theoretic algorithms with quadratic complexity to compute the simulation relation.\r\nWe present an automated technique for assume-guarantee style reasoning for compositional analysis of MDPs with qualitative properties by giving a counter-example guided abstraction-refinement approach to compute our new simulation relation. We have implemented our algorithms and show that the compositional analysis leads to significant improvements. ","lang":"eng"}],"date_updated":"2023-02-23T12:25:18Z","alternative_title":["IST Austria Technical Report"],"doi":"10.15479/AT:IST-2014-153-v2-2","related_material":{"record":[{"relation":"later_version","status":"public","id":"2063"},{"id":"5412","status":"public","relation":"earlier_version"},{"status":"public","relation":"later_version","id":"5414"}]},"author":[{"first_name":"Krishnendu","last_name":"Chatterjee","orcid":"0000-0002-4561-241X","full_name":"Chatterjee, Krishnendu","id":"2E5DCA20-F248-11E8-B48F-1D18A9856A87"},{"last_name":"Daca","first_name":"Przemyslaw","id":"49351290-F248-11E8-B48F-1D18A9856A87","full_name":"Daca, Przemyslaw"},{"id":"3624234E-F248-11E8-B48F-1D18A9856A87","full_name":"Chmelik, Martin","last_name":"Chmelik","first_name":"Martin"}],"date_published":"2014-02-06T00:00:00Z","pubrep_id":"164","file":[{"checksum":"ce4967a184d84863eec76c66cbac1614","file_name":"IST-2014-153-v2+2_main.pdf","file_size":606049,"date_updated":"2020-07-14T12:46:47Z","file_id":"5539","date_created":"2018-12-12T11:54:17Z","content_type":"application/pdf","creator":"system","access_level":"open_access","relation":"main_file"}],"has_accepted_license":"1","year":"2014","publication_status":"published","_id":"5413","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","type":"technical_report","page":"33","month":"02","publication_identifier":{"issn":["2664-1690"]},"language":[{"iso":"eng"}],"citation":{"ama":"Chatterjee K, Daca P, Chmelik M. <i>CEGAR for Qualitative Analysis of Probabilistic Systems</i>. IST Austria; 2014. doi:<a href=\"https://doi.org/10.15479/AT:IST-2014-153-v2-2\">10.15479/AT:IST-2014-153-v2-2</a>","mla":"Chatterjee, Krishnendu, et al. <i>CEGAR for Qualitative Analysis of Probabilistic Systems</i>. IST Austria, 2014, doi:<a href=\"https://doi.org/10.15479/AT:IST-2014-153-v2-2\">10.15479/AT:IST-2014-153-v2-2</a>.","short":"K. Chatterjee, P. Daca, M. Chmelik, CEGAR for Qualitative Analysis of Probabilistic Systems, IST Austria, 2014.","ista":"Chatterjee K, Daca P, Chmelik M. 2014. CEGAR for qualitative analysis of probabilistic systems, IST Austria, 33p.","ieee":"K. Chatterjee, P. Daca, and M. Chmelik, <i>CEGAR for qualitative analysis of probabilistic systems</i>. IST Austria, 2014.","chicago":"Chatterjee, Krishnendu, Przemyslaw Daca, and Martin Chmelik. <i>CEGAR for Qualitative Analysis of Probabilistic Systems</i>. IST Austria, 2014. <a href=\"https://doi.org/10.15479/AT:IST-2014-153-v2-2\">https://doi.org/10.15479/AT:IST-2014-153-v2-2</a>.","apa":"Chatterjee, K., Daca, P., &#38; Chmelik, M. (2014). <i>CEGAR for qualitative analysis of probabilistic systems</i>. IST Austria. <a href=\"https://doi.org/10.15479/AT:IST-2014-153-v2-2\">https://doi.org/10.15479/AT:IST-2014-153-v2-2</a>"},"ddc":["000"],"day":"06","status":"public","oa":1},{"oa_version":"Published Version","date_created":"2018-12-12T11:39:12Z","title":"CEGAR for qualitative analysis of probabilistic systems","file_date_updated":"2020-07-14T12:46:48Z","department":[{"_id":"KrCh"}],"publisher":"IST Austria","abstract":[{"lang":"eng","text":"We consider Markov decision processes (MDPs) which are a standard model for probabilistic systems. We focus on qualitative properties for MDPs that can express that desired behaviors of the system arise almost-surely (with probability 1) or with positive probability.\r\nWe introduce a new simulation relation to capture the refinement relation of MDPs with respect to qualitative properties, and present discrete graph theoretic algorithms with quadratic complexity to compute the simulation relation.\r\nWe present an automated technique for assume-guarantee style reasoning for compositional analysis of MDPs with qualitative properties by giving a counter-example guided abstraction-refinement approach to compute our new simulation relation. \r\nWe have implemented our algorithms and show that the compositional analysis leads to significant improvements. "}],"date_published":"2014-02-07T00:00:00Z","author":[{"id":"2E5DCA20-F248-11E8-B48F-1D18A9856A87","full_name":"Chatterjee, Krishnendu","orcid":"0000-0002-4561-241X","last_name":"Chatterjee","first_name":"Krishnendu"},{"id":"49351290-F248-11E8-B48F-1D18A9856A87","full_name":"Daca, Przemyslaw","last_name":"Daca","first_name":"Przemyslaw"},{"last_name":"Chmelik","first_name":"Martin","id":"3624234E-F248-11E8-B48F-1D18A9856A87","full_name":"Chmelik, Martin"}],"pubrep_id":"165","doi":"10.15479/AT:IST-2014-153-v3-1","alternative_title":["IST Austria Technical Report"],"date_updated":"2023-02-23T12:25:15Z","related_material":{"record":[{"id":"2063","status":"public","relation":"later_version"},{"status":"public","relation":"earlier_version","id":"5412"},{"id":"5413","relation":"earlier_version","status":"public"}]},"_id":"5414","publication_status":"published","has_accepted_license":"1","year":"2014","file":[{"date_updated":"2020-07-14T12:46:48Z","file_id":"5464","file_size":606227,"file_name":"IST-2014-153-v3+1_main.pdf","checksum":"87b93fe9af71fc5c94b0eb6151537e11","relation":"main_file","access_level":"open_access","creator":"system","content_type":"application/pdf","date_created":"2018-12-12T11:53:03Z"}],"page":"33","type":"technical_report","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","citation":{"ieee":"K. Chatterjee, P. Daca, and M. Chmelik, <i>CEGAR for qualitative analysis of probabilistic systems</i>. IST Austria, 2014.","chicago":"Chatterjee, Krishnendu, Przemyslaw Daca, and Martin Chmelik. <i>CEGAR for Qualitative Analysis of Probabilistic Systems</i>. IST Austria, 2014. <a href=\"https://doi.org/10.15479/AT:IST-2014-153-v3-1\">https://doi.org/10.15479/AT:IST-2014-153-v3-1</a>.","apa":"Chatterjee, K., Daca, P., &#38; Chmelik, M. (2014). <i>CEGAR for qualitative analysis of probabilistic systems</i>. IST Austria. <a href=\"https://doi.org/10.15479/AT:IST-2014-153-v3-1\">https://doi.org/10.15479/AT:IST-2014-153-v3-1</a>","ama":"Chatterjee K, Daca P, Chmelik M. <i>CEGAR for Qualitative Analysis of Probabilistic Systems</i>. IST Austria; 2014. doi:<a href=\"https://doi.org/10.15479/AT:IST-2014-153-v3-1\">10.15479/AT:IST-2014-153-v3-1</a>","ista":"Chatterjee K, Daca P, Chmelik M. 2014. CEGAR for qualitative analysis of probabilistic systems, IST Austria, 33p.","short":"K. Chatterjee, P. Daca, M. Chmelik, CEGAR for Qualitative Analysis of Probabilistic Systems, IST Austria, 2014.","mla":"Chatterjee, Krishnendu, et al. <i>CEGAR for Qualitative Analysis of Probabilistic Systems</i>. IST Austria, 2014, doi:<a href=\"https://doi.org/10.15479/AT:IST-2014-153-v3-1\">10.15479/AT:IST-2014-153-v3-1</a>."},"language":[{"iso":"eng"}],"publication_identifier":{"issn":["2664-1690"]},"month":"02","status":"public","oa":1,"day":"07","ddc":["000"]},{"publication_status":"published","has_accepted_license":"1","file":[{"content_type":"application/pdf","date_created":"2018-12-12T11:53:36Z","relation":"main_file","access_level":"open_access","creator":"system","file_size":573457,"file_name":"IST-2014-170-v1+1_main.pdf","checksum":"31f90dcf2cf899c3f8c6427cfcc2b3c7","file_id":"5497","date_updated":"2020-07-14T12:46:48Z"}],"year":"2014","_id":"5415","type":"technical_report","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","page":"27","publication_identifier":{"issn":["2664-1690"]},"language":[{"iso":"eng"}],"month":"02","citation":{"ieee":"K. Chatterjee, T. A. Henzinger, and J. Otop, <i>Nested weighted automata</i>. IST Austria, 2014.","chicago":"Chatterjee, Krishnendu, Thomas A Henzinger, and Jan Otop. <i>Nested Weighted Automata</i>. IST Austria, 2014. <a href=\"https://doi.org/10.15479/AT:IST-2014-170-v1-1\">https://doi.org/10.15479/AT:IST-2014-170-v1-1</a>.","apa":"Chatterjee, K., Henzinger, T. A., &#38; Otop, J. (2014). <i>Nested weighted automata</i>. IST Austria. <a href=\"https://doi.org/10.15479/AT:IST-2014-170-v1-1\">https://doi.org/10.15479/AT:IST-2014-170-v1-1</a>","ama":"Chatterjee K, Henzinger TA, Otop J. <i>Nested Weighted Automata</i>. IST Austria; 2014. doi:<a href=\"https://doi.org/10.15479/AT:IST-2014-170-v1-1\">10.15479/AT:IST-2014-170-v1-1</a>","mla":"Chatterjee, Krishnendu, et al. <i>Nested Weighted Automata</i>. IST Austria, 2014, doi:<a href=\"https://doi.org/10.15479/AT:IST-2014-170-v1-1\">10.15479/AT:IST-2014-170-v1-1</a>.","ista":"Chatterjee K, Henzinger TA, Otop J. 2014. Nested weighted automata, IST Austria, 27p.","short":"K. Chatterjee, T.A. Henzinger, J. Otop, Nested Weighted Automata, IST Austria, 2014."},"day":"19","ddc":["004"],"status":"public","oa":1,"oa_version":"Published Version","date_created":"2018-12-12T11:39:12Z","publisher":"IST Austria","title":"Nested weighted automata","department":[{"_id":"KrCh"},{"_id":"ToHe"}],"file_date_updated":"2020-07-14T12:46:48Z","abstract":[{"lang":"eng","text":"Recently there has been a significant effort to add quantitative properties in formal verification and synthesis. While weighted automata over finite and infinite words provide a natural and flexible framework to express quantitative properties, perhaps surprisingly, several basic system properties such as average response time cannot be expressed with weighted automata. In this work, we introduce nested weighted automata as a new formalism for expressing important quantitative properties such as average response time. We establish an almost complete decidability picture for the basic decision problems for nested weighted automata, and illustrate its applicability in several domains.  "}],"related_material":{"record":[{"relation":"later_version","status":"public","id":"1656"},{"id":"467","relation":"later_version","status":"public"},{"status":"public","relation":"later_version","id":"5436"}]},"doi":"10.15479/AT:IST-2014-170-v1-1","date_updated":"2023-02-23T12:26:19Z","alternative_title":["IST Austria Technical Report"],"pubrep_id":"170","date_published":"2014-02-19T00:00:00Z","author":[{"id":"2E5DCA20-F248-11E8-B48F-1D18A9856A87","full_name":"Chatterjee, Krishnendu","last_name":"Chatterjee","orcid":"0000-0002-4561-241X","first_name":"Krishnendu"},{"full_name":"Henzinger, Thomas A","id":"40876CD8-F248-11E8-B48F-1D18A9856A87","first_name":"Thomas A","last_name":"Henzinger","orcid":"0000−0002−2985−7724"},{"last_name":"Otop","first_name":"Jan","id":"2FC5DA74-F248-11E8-B48F-1D18A9856A87","full_name":"Otop, Jan"}]},{"year":"2014","file":[{"checksum":"445456d22371e4e49aad2b9a0c13bf80","file_name":"IST-2014-171-v1+1_report.pdf","file_size":712077,"date_updated":"2020-07-14T12:46:49Z","file_id":"5492","date_created":"2018-12-12T11:53:32Z","content_type":"application/pdf","creator":"system","access_level":"open_access","relation":"main_file"}],"has_accepted_license":"1","publication_status":"published","_id":"5416","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","type":"technical_report","page":"22","month":"02","language":[{"iso":"eng"}],"publication_identifier":{"issn":["2664-1690"]},"citation":{"apa":"Henzinger, T. A., &#38; Otop, J. (2014). <i>Model measuring for hybrid systems</i>. IST Austria. <a href=\"https://doi.org/10.15479/AT:IST-2014-171-v1-1\">https://doi.org/10.15479/AT:IST-2014-171-v1-1</a>","ieee":"T. A. Henzinger and J. Otop, <i>Model measuring for hybrid systems</i>. IST Austria, 2014.","chicago":"Henzinger, Thomas A, and Jan Otop. <i>Model Measuring for Hybrid Systems</i>. IST Austria, 2014. <a href=\"https://doi.org/10.15479/AT:IST-2014-171-v1-1\">https://doi.org/10.15479/AT:IST-2014-171-v1-1</a>.","ista":"Henzinger TA, Otop J. 2014. Model measuring for hybrid systems, IST Austria, 22p.","mla":"Henzinger, Thomas A., and Jan Otop. <i>Model Measuring for Hybrid Systems</i>. IST Austria, 2014, doi:<a href=\"https://doi.org/10.15479/AT:IST-2014-171-v1-1\">10.15479/AT:IST-2014-171-v1-1</a>.","short":"T.A. Henzinger, J. Otop, Model Measuring for Hybrid Systems, IST Austria, 2014.","ama":"Henzinger TA, Otop J. <i>Model Measuring for Hybrid Systems</i>. IST Austria; 2014. doi:<a href=\"https://doi.org/10.15479/AT:IST-2014-171-v1-1\">10.15479/AT:IST-2014-171-v1-1</a>"},"ddc":["005"],"day":"19","oa":1,"status":"public","date_created":"2018-12-12T11:39:12Z","oa_version":"Published Version","publisher":"IST Austria","department":[{"_id":"ToHe"}],"file_date_updated":"2020-07-14T12:46:49Z","title":"Model measuring for hybrid systems","abstract":[{"lang":"eng","text":"As hybrid systems involve continuous behaviors, they should be evaluated by quantitative methods, rather than qualitative methods. In this paper we adapt a quantitative framework, called model measuring, to the hybrid systems domain. The model-measuring problem asks, given a model M and a specification, what is the maximal distance such that all models within that distance from M satisfy (or violate) the specification. A distance function on models is given as part of the input of the problem. Distances, especially related to continuous behaviors are more natural in the hybrid case than the discrete case. We are interested in distances represented by monotonic hybrid automata, a hybrid counterpart of (discrete) weighted automata, whose recognized timed languages are monotone (w.r.t. inclusion) in the values of parameters.The contributions of this paper are twofold. First, we give sufficient conditions under which the model-measuring problem can be solved. Second, we discuss the modeling of distances and applications of the model-measuring problem."}],"related_material":{"record":[{"id":"2217","relation":"later_version","status":"public"}]},"doi":"10.15479/AT:IST-2014-171-v1-1","alternative_title":["IST Austria Technical Report"],"date_updated":"2023-02-23T10:33:21Z","pubrep_id":"171","author":[{"full_name":"Henzinger, Thomas A","id":"40876CD8-F248-11E8-B48F-1D18A9856A87","first_name":"Thomas A","orcid":"0000−0002−2985−7724","last_name":"Henzinger"},{"full_name":"Otop, Jan","id":"2FC5DA74-F248-11E8-B48F-1D18A9856A87","first_name":"Jan","last_name":"Otop"}],"date_published":"2014-02-19T00:00:00Z"},{"page":"14","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","type":"technical_report","_id":"5417","year":"2014","has_accepted_license":"1","file":[{"relation":"main_file","creator":"system","access_level":"open_access","content_type":"application/pdf","date_created":"2018-12-12T11:53:20Z","file_id":"5481","date_updated":"2020-07-14T12:46:49Z","file_size":383052,"file_name":"IST-2014-172-v1+1_report.pdf","checksum":"fcc3eab903cfcd3778b338d2d0d44d18"}],"publication_status":"published","status":"public","oa":1,"ddc":["000"],"day":"19","citation":{"apa":"Henzinger, T. A., &#38; Otop, J. (2014). <i>From model checking to model measuring</i>. IST Austria. <a href=\"https://doi.org/10.15479/AT:IST-2014-172-v1-1\">https://doi.org/10.15479/AT:IST-2014-172-v1-1</a>","ieee":"T. A. Henzinger and J. Otop, <i>From model checking to model measuring</i>. IST Austria, 2014.","chicago":"Henzinger, Thomas A, and Jan Otop. <i>From Model Checking to Model Measuring</i>. IST Austria, 2014. <a href=\"https://doi.org/10.15479/AT:IST-2014-172-v1-1\">https://doi.org/10.15479/AT:IST-2014-172-v1-1</a>.","ista":"Henzinger TA, Otop J. 2014. From model checking to model measuring, IST Austria, 14p.","short":"T.A. Henzinger, J. Otop, From Model Checking to Model Measuring, IST Austria, 2014.","mla":"Henzinger, Thomas A., and Jan Otop. <i>From Model Checking to Model Measuring</i>. IST Austria, 2014, doi:<a href=\"https://doi.org/10.15479/AT:IST-2014-172-v1-1\">10.15479/AT:IST-2014-172-v1-1</a>.","ama":"Henzinger TA, Otop J. <i>From Model Checking to Model Measuring</i>. IST Austria; 2014. doi:<a href=\"https://doi.org/10.15479/AT:IST-2014-172-v1-1\">10.15479/AT:IST-2014-172-v1-1</a>"},"month":"02","publication_identifier":{"issn":["2664-1690"]},"language":[{"iso":"eng"}],"title":"From model checking to model measuring","file_date_updated":"2020-07-14T12:46:49Z","department":[{"_id":"ToHe"}],"publisher":"IST Austria","date_created":"2018-12-12T11:39:13Z","oa_version":"Published Version","date_published":"2014-02-19T00:00:00Z","pubrep_id":"175","author":[{"first_name":"Thomas A","last_name":"Henzinger","orcid":"0000−0002−2985−7724","full_name":"Henzinger, Thomas A","id":"40876CD8-F248-11E8-B48F-1D18A9856A87"},{"first_name":"Jan","last_name":"Otop","full_name":"Otop, Jan","id":"2FC5DA74-F248-11E8-B48F-1D18A9856A87"}],"date_updated":"2023-02-23T10:38:10Z","alternative_title":["IST Austria Technical Report"],"related_material":{"record":[{"id":"2327","status":"public","relation":"later_version"}]},"doi":"10.15479/AT:IST-2014-172-v1-1","abstract":[{"lang":"eng","text":"We define the model-measuring problem: given a model M and specification φ, what is the maximal distance ρ such that all models M'within distance ρ from M satisfy (or violate)φ. The model measuring problem presupposes a distance function on models. We concentrate on automatic distance functions, which are defined by weighted automata.\r\nThe model-measuring problem subsumes several generalizations of the classical model-checking problem, in particular, quantitative model-checking problems that measure the degree of satisfaction of a specification, and robustness problems that measure how much a model can be perturbed without violating the specification.\r\nWe show that for automatic distance functions, and ω-regular linear-time and branching-time specifications, the model-measuring problem can be solved.\r\nWe use automata-theoretic model-checking methods for model measuring, replacing the emptiness question for standard word and tree automata by the optimal-weight question for the weighted versions of these automata. We consider weighted automata that accumulate weights by maximizing, summing, discounting, and limit averaging. \r\nWe give several examples of using the model-measuring problem to compute various notions of robustness and quantitative satisfaction for temporal specifications."}]},{"publisher":"IST Austria","department":[{"_id":"KrCh"}],"file_date_updated":"2020-07-14T12:46:49Z","title":"Games with a weak adversary","date_created":"2018-12-12T11:39:13Z","oa_version":"Published Version","alternative_title":["IST Austria Technical Report"],"doi":"10.15479/AT:IST-2014-176-v1-1","date_updated":"2023-02-23T10:30:58Z","related_material":{"record":[{"status":"public","relation":"later_version","id":"2163"}]},"pubrep_id":"176","date_published":"2014-03-22T00:00:00Z","author":[{"full_name":"Chatterjee, Krishnendu","id":"2E5DCA20-F248-11E8-B48F-1D18A9856A87","first_name":"Krishnendu","last_name":"Chatterjee","orcid":"0000-0002-4561-241X"},{"last_name":"Doyen","first_name":"Laurent","full_name":"Doyen, Laurent"}],"abstract":[{"lang":"eng","text":"We consider multi-player graph games with partial-observation and parity objective. While the decision problem for three-player games with a coalition of the first and second players against the third player is undecidable, we present a decidability result for partial-observation games where the first and third player are in a coalition against the second player, thus where the second player is adversarial but weaker due to partial-observation. We establish tight complexity bounds in the case where player 1 is less informed than player 2, namely 2-EXPTIME-completeness for parity objectives. The symmetric case of player 1 more informed than player 2 is much more complicated, and we show that already in the case where player 1 has perfect observation, memory of size non-elementary is necessary in general for reachability objectives, and the problem is decidable for safety and reachability objectives. Our results have tight connections with partial-observation stochastic games for which we derive new complexity results."}],"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","type":"technical_report","page":"18","file":[{"access_level":"open_access","creator":"system","relation":"main_file","date_created":"2018-12-12T11:53:07Z","content_type":"application/pdf","file_id":"5468","date_updated":"2020-07-14T12:46:49Z","file_name":"IST-2014-176-v1+1_icalp_14.pdf","checksum":"1d6958aa60050e1c3e932c6e5f34c39f","file_size":328253}],"has_accepted_license":"1","year":"2014","publication_status":"published","_id":"5418","ddc":["000","005"],"day":"22","oa":1,"status":"public","month":"03","language":[{"iso":"eng"}],"publication_identifier":{"issn":["2664-1690"]},"citation":{"apa":"Chatterjee, K., &#38; Doyen, L. (2014). <i>Games with a weak adversary</i>. IST Austria. <a href=\"https://doi.org/10.15479/AT:IST-2014-176-v1-1\">https://doi.org/10.15479/AT:IST-2014-176-v1-1</a>","chicago":"Chatterjee, Krishnendu, and Laurent Doyen. <i>Games with a Weak Adversary</i>. IST Austria, 2014. <a href=\"https://doi.org/10.15479/AT:IST-2014-176-v1-1\">https://doi.org/10.15479/AT:IST-2014-176-v1-1</a>.","ieee":"K. Chatterjee and L. Doyen, <i>Games with a weak adversary</i>. IST Austria, 2014.","short":"K. Chatterjee, L. Doyen, Games with a Weak Adversary, IST Austria, 2014.","ista":"Chatterjee K, Doyen L. 2014. Games with a weak adversary, IST Austria, 18p.","mla":"Chatterjee, Krishnendu, and Laurent Doyen. <i>Games with a Weak Adversary</i>. IST Austria, 2014, doi:<a href=\"https://doi.org/10.15479/AT:IST-2014-176-v1-1\">10.15479/AT:IST-2014-176-v1-1</a>.","ama":"Chatterjee K, Doyen L. <i>Games with a Weak Adversary</i>. IST Austria; 2014. doi:<a href=\"https://doi.org/10.15479/AT:IST-2014-176-v1-1\">10.15479/AT:IST-2014-176-v1-1</a>"}},{"oa":1,"status":"public","ddc":["000"],"day":"14","citation":{"ama":"Chatterjee K, Ibsen-Jensen R, Pavlogiannis A. <i>Improved Algorithms for Reachability and Shortest Path on Low Tree-Width Graphs</i>. IST Austria; 2014. doi:<a href=\"https://doi.org/10.15479/AT:IST-2014-187-v1-1\">10.15479/AT:IST-2014-187-v1-1</a>","mla":"Chatterjee, Krishnendu, et al. <i>Improved Algorithms for Reachability and Shortest Path on Low Tree-Width Graphs</i>. IST Austria, 2014, doi:<a href=\"https://doi.org/10.15479/AT:IST-2014-187-v1-1\">10.15479/AT:IST-2014-187-v1-1</a>.","short":"K. Chatterjee, R. Ibsen-Jensen, A. Pavlogiannis, Improved Algorithms for Reachability and Shortest Path on Low Tree-Width Graphs, IST Austria, 2014.","ista":"Chatterjee K, Ibsen-Jensen R, Pavlogiannis A. 2014. Improved algorithms for reachability and shortest path on low tree-width graphs, IST Austria, 34p.","chicago":"Chatterjee, Krishnendu, Rasmus Ibsen-Jensen, and Andreas Pavlogiannis. <i>Improved Algorithms for Reachability and Shortest Path on Low Tree-Width Graphs</i>. IST Austria, 2014. <a href=\"https://doi.org/10.15479/AT:IST-2014-187-v1-1\">https://doi.org/10.15479/AT:IST-2014-187-v1-1</a>.","ieee":"K. Chatterjee, R. Ibsen-Jensen, and A. Pavlogiannis, <i>Improved algorithms for reachability and shortest path on low tree-width graphs</i>. IST Austria, 2014.","apa":"Chatterjee, K., Ibsen-Jensen, R., &#38; Pavlogiannis, A. (2014). <i>Improved algorithms for reachability and shortest path on low tree-width graphs</i>. IST Austria. <a href=\"https://doi.org/10.15479/AT:IST-2014-187-v1-1\">https://doi.org/10.15479/AT:IST-2014-187-v1-1</a>"},"month":"04","publication_identifier":{"issn":["2664-1690"]},"language":[{"iso":"eng"}],"page":"34","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","type":"technical_report","_id":"5419","has_accepted_license":"1","file":[{"content_type":"application/pdf","date_created":"2018-12-12T11:54:25Z","relation":"main_file","creator":"system","access_level":"open_access","file_size":670031,"checksum":"c608e66030a4bf51d2d99b451f539b99","file_name":"IST-2014-187-v1+1_main_full_tech.pdf","date_updated":"2020-07-14T12:46:50Z","file_id":"5548"}],"year":"2014","publication_status":"published","pubrep_id":"187","author":[{"full_name":"Chatterjee, Krishnendu","id":"2E5DCA20-F248-11E8-B48F-1D18A9856A87","first_name":"Krishnendu","orcid":"0000-0002-4561-241X","last_name":"Chatterjee"},{"first_name":"Rasmus","orcid":"0000-0003-4783-0389","last_name":"Ibsen-Jensen","full_name":"Ibsen-Jensen, Rasmus","id":"3B699956-F248-11E8-B48F-1D18A9856A87"},{"first_name":"Andreas","last_name":"Pavlogiannis","orcid":"0000-0002-8943-0722","full_name":"Pavlogiannis, Andreas","id":"49704004-F248-11E8-B48F-1D18A9856A87"}],"date_published":"2014-04-14T00:00:00Z","doi":"10.15479/AT:IST-2014-187-v1-1","date_updated":"2021-01-12T08:02:03Z","alternative_title":["IST Austria Technical Report"],"abstract":[{"text":"We consider the reachability and shortest path problems on low tree-width graphs, with n nodes, m edges, and tree-width t, on a standard RAM with wordsize W. We use O to hide polynomial factors of the inverse of the Ackermann function. Our main contributions are three fold:\r\n1. For reachability, we present an algorithm that requires O(n·t2·log(n/t)) preprocessing time, O(n·(t·log(n/t))/W) space, and O(t/W) time for pair queries and O((n·t)/W) time for single-source queries. Note that for constant t our algorithm uses O(n·logn) time for preprocessing; and O(n/W) time for single-source queries, which is faster than depth first search/breath first search (after the preprocessing).\r\n2. We present an algorithm for shortest path that requires O(n·t2) preprocessing time, O(n·t) space, and O(t2) time for pair queries and O(n·t) time single-source queries.\r\n3. We give a space versus query time trade-off algorithm for shortest path that, given any constant >0, requires O(n·t2) preprocessing time, O(n·t2) space, and O(n1−·t2) time for pair queries.\r\nOur algorithms improve all existing results, and use very simple data structures.","lang":"eng"}],"department":[{"_id":"KrCh"}],"title":"Improved algorithms for reachability and shortest path on low tree-width graphs","file_date_updated":"2020-07-14T12:46:50Z","publisher":"IST Austria","date_created":"2018-12-12T11:39:13Z","oa_version":"Published Version"},{"day":"14","ddc":["000","005"],"oa":1,"status":"public","language":[{"iso":"eng"}],"publication_identifier":{"issn":["2664-1690"]},"month":"04","citation":{"mla":"Chatterjee, Krishnendu, and Rasmus Ibsen-Jensen. <i>The Value 1 Problem for Concurrent Mean-Payoff Games</i>. IST Austria, 2014, doi:<a href=\"https://doi.org/10.15479/AT:IST-2014-191-v1-1\">10.15479/AT:IST-2014-191-v1-1</a>.","ista":"Chatterjee K, Ibsen-Jensen R. 2014. The value 1 problem for concurrent mean-payoff games, IST Austria, 49p.","short":"K. Chatterjee, R. Ibsen-Jensen, The Value 1 Problem for Concurrent Mean-Payoff Games, IST Austria, 2014.","ama":"Chatterjee K, Ibsen-Jensen R. <i>The Value 1 Problem for Concurrent Mean-Payoff Games</i>. IST Austria; 2014. doi:<a href=\"https://doi.org/10.15479/AT:IST-2014-191-v1-1\">10.15479/AT:IST-2014-191-v1-1</a>","apa":"Chatterjee, K., &#38; Ibsen-Jensen, R. (2014). <i>The value 1 problem for concurrent mean-payoff games</i>. IST Austria. <a href=\"https://doi.org/10.15479/AT:IST-2014-191-v1-1\">https://doi.org/10.15479/AT:IST-2014-191-v1-1</a>","ieee":"K. Chatterjee and R. Ibsen-Jensen, <i>The value 1 problem for concurrent mean-payoff games</i>. IST Austria, 2014.","chicago":"Chatterjee, Krishnendu, and Rasmus Ibsen-Jensen. <i>The Value 1 Problem for Concurrent Mean-Payoff Games</i>. IST Austria, 2014. <a href=\"https://doi.org/10.15479/AT:IST-2014-191-v1-1\">https://doi.org/10.15479/AT:IST-2014-191-v1-1</a>."},"type":"technical_report","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","page":"49","publication_status":"published","file":[{"file_id":"5520","date_updated":"2020-07-14T12:46:50Z","file_size":584368,"file_name":"IST-2014-191-v1+1_main_full.pdf","checksum":"49e0fd3e62650346daf7dc04604f7a0a","relation":"main_file","creator":"system","access_level":"open_access","content_type":"application/pdf","date_created":"2018-12-12T11:53:58Z"}],"year":"2014","has_accepted_license":"1","_id":"5420","alternative_title":["IST Austria Technical Report"],"date_updated":"2021-01-12T08:02:05Z","doi":"10.15479/AT:IST-2014-191-v1-1","author":[{"full_name":"Chatterjee, Krishnendu","id":"2E5DCA20-F248-11E8-B48F-1D18A9856A87","first_name":"Krishnendu","orcid":"0000-0002-4561-241X","last_name":"Chatterjee"},{"orcid":"0000-0003-4783-0389","last_name":"Ibsen-Jensen","first_name":"Rasmus","id":"3B699956-F248-11E8-B48F-1D18A9856A87","full_name":"Ibsen-Jensen, Rasmus"}],"pubrep_id":"191","date_published":"2014-04-14T00:00:00Z","abstract":[{"text":"We consider concurrent mean-payoff games, a very well-studied class of two-player (player 1 vs player 2) zero-sum games on finite-state graphs where every transition is assigned a reward between 0 and 1, and the payoff function is the long-run average of the rewards. The value is the maximal expected payoff that player 1 can guarantee against all strategies of player 2. We consider the computation of the set of states with value 1 under finite-memory strategies for player 1, and our main results for the problem are as follows: (1) we present a polynomial-time algorithm; (2) we show that whenever there is a finite-memory strategy, there is a stationary strategy that does not need memory at all; and (3) we present an optimal bound (which is double exponential) on the patience of stationary strategies (where patience of a distribution is the inverse of the smallest positive probability and represents a complexity measure of a stationary strategy).","lang":"eng"}],"publisher":"IST Austria","department":[{"_id":"KrCh"}],"file_date_updated":"2020-07-14T12:46:50Z","title":"The value 1 problem for concurrent mean-payoff games","oa_version":"Published Version","date_created":"2018-12-12T11:39:14Z"},{"status":"public","oa":1,"day":"18","ddc":["000","005"],"citation":{"ama":"Chatterjee K, Ibsen-Jensen R, Nowak M. <i>The Complexity of Evolution on Graphs</i>. IST Austria; 2014. doi:<a href=\"https://doi.org/10.15479/AT:IST-2014-190-v2-2\">10.15479/AT:IST-2014-190-v2-2</a>","short":"K. Chatterjee, R. Ibsen-Jensen, M. Nowak, The Complexity of Evolution on Graphs, IST Austria, 2014.","ista":"Chatterjee K, Ibsen-Jensen R, Nowak M. 2014. The complexity of evolution on graphs, IST Austria, 27p.","mla":"Chatterjee, Krishnendu, et al. <i>The Complexity of Evolution on Graphs</i>. IST Austria, 2014, doi:<a href=\"https://doi.org/10.15479/AT:IST-2014-190-v2-2\">10.15479/AT:IST-2014-190-v2-2</a>.","ieee":"K. Chatterjee, R. Ibsen-Jensen, and M. Nowak, <i>The complexity of evolution on graphs</i>. IST Austria, 2014.","chicago":"Chatterjee, Krishnendu, Rasmus Ibsen-Jensen, and Martin Nowak. <i>The Complexity of Evolution on Graphs</i>. IST Austria, 2014. <a href=\"https://doi.org/10.15479/AT:IST-2014-190-v2-2\">https://doi.org/10.15479/AT:IST-2014-190-v2-2</a>.","apa":"Chatterjee, K., Ibsen-Jensen, R., &#38; Nowak, M. (2014). <i>The complexity of evolution on graphs</i>. IST Austria. <a href=\"https://doi.org/10.15479/AT:IST-2014-190-v2-2\">https://doi.org/10.15479/AT:IST-2014-190-v2-2</a>"},"publication_identifier":{"issn":["2664-1690"]},"language":[{"iso":"eng"}],"month":"04","page":"27","type":"technical_report","user_id":"3E5EF7F0-F248-11E8-B48F-1D18A9856A87","_id":"5421","publication_status":"published","file":[{"date_created":"2018-12-12T11:54:16Z","content_type":"application/pdf","creator":"system","access_level":"open_access","relation":"main_file","file_name":"IST-2014-190-v2+2_main_full.pdf","checksum":"42f3d8b563286eb0d903832bd9a848d3","file_size":443529,"file_id":"5538","date_updated":"2020-07-14T12:46:50Z"},{"access_level":"open_access","creator":"kschuh","relation":"main_file","date_created":"2019-09-06T07:30:20Z","content_type":"application/pdf","file_id":"6852","date_updated":"2020-07-14T12:46:50Z","checksum":"0c9a2fd822309719634495a35957e34d","file_name":"IST-2014-190-v1+1_main_full.pdf","file_size":440911}],"year":"2014","has_accepted_license":"1","pubrep_id":"190","date_published":"2014-04-18T00:00:00Z","author":[{"id":"2E5DCA20-F248-11E8-B48F-1D18A9856A87","full_name":"Chatterjee, Krishnendu","last_name":"Chatterjee","orcid":"0000-0002-4561-241X","first_name":"Krishnendu"},{"last_name":"Ibsen-Jensen","orcid":"0000-0003-4783-0389","first_name":"Rasmus","id":"3B699956-F248-11E8-B48F-1D18A9856A87","full_name":"Ibsen-Jensen, Rasmus"},{"last_name":"Nowak","first_name":"Martin","full_name":"Nowak, Martin"}],"doi":"10.15479/AT:IST-2014-190-v2-2","date_updated":"2023-02-23T12:26:33Z","alternative_title":["IST Austria Technical Report"],"related_material":{"record":[{"status":"public","relation":"later_version","id":"5432"},{"relation":"later_version","status":"public","id":"5440"}]},"abstract":[{"text":"Evolution occurs in populations of reproducing individuals. The structure of the population affects the outcome of the evolutionary process. Evolutionary graph theory is a powerful approach to study this phenomenon. There are two graphs. The interaction graph specifies who interacts with whom in the context of evolution. The replacement graph specifies who competes with whom for reproduction. The vertices of the two graphs are the same, and each vertex corresponds to an individual. A key quantity is the fixation probability of a new mutant. It is defined as the probability that a newly introduced mutant (on a single vertex) generates a lineage of offspring which eventually takes over the entire population of resident individuals. The basic computational questions are as follows: (i) the qualitative question asks whether the fixation probability is positive; and (ii) the quantitative approximation question asks for an approximation of the fixation probability. Our main results are: (1) We show that the qualitative question is NP-complete and the quantitative approximation question is #P-hard in the special case when the interaction and the replacement graphs coincide and even with the restriction that the resident individuals do not reproduce (which corresponds to an invading population taking over an empty structure). (2) We show that in general the qualitative question is PSPACE-complete and the quantitative approximation question is PSPACE-hard and can be solved in exponential time.","lang":"eng"}],"file_date_updated":"2020-07-14T12:46:50Z","department":[{"_id":"KrCh"}],"title":"The complexity of evolution on graphs","publisher":"IST Austria","oa_version":"Published Version","date_created":"2018-12-12T11:39:14Z"},{"publisher":"none","title":"Notes from Research Data Alliance Plenary Meeting in Dublin, Ireland","file_date_updated":"2020-07-14T12:46:50Z","department":[{"_id":"E-Lib"}],"date_created":"2018-12-12T11:39:14Z","oa_version":"None","date_updated":"2020-07-14T23:04:56Z","author":[{"id":"3252EDC2-F248-11E8-B48F-1D18A9856A87","full_name":"Porsche, Jana","last_name":"Porsche","first_name":"Jana"}],"date_published":"2014-01-01T00:00:00Z","pubrep_id":"254","abstract":[{"lang":"eng","text":"Notes from the Third Plenary for the Research Data Alliance in Dublin, Ireland on March 26 to 28, 2014 with focus on starting an institutional research data repository."}],"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","type":"report","year":"2014","file":[{"relation":"main_file","access_level":"open_access","creator":"system","content_type":"application/pdf","date_created":"2018-12-12T11:53:40Z","file_id":"5501","date_updated":"2020-07-14T12:46:50Z","file_size":648585,"checksum":"3954896648ce8afa8f7c4425e71cff08","file_name":"IST-2014-254-v1+1_Dublin_Day_3.pdf"},{"date_updated":"2020-07-14T12:46:50Z","file_id":"5502","file_size":221339,"checksum":"9a0d42b0b832dfe7e4b22fb6816bcbba","file_name":"IST-2014-254-v1+2_Dublin_Day_1.pdf","relation":"main_file","creator":"system","access_level":"open_access","content_type":"application/pdf","date_created":"2018-12-12T11:53:41Z"},{"file_size":187778,"checksum":"498b8d629fb1bd17bff1dc43700a93e6","file_name":"IST-2014-254-v1+3_Dublin_Day_2.pdf","file_id":"5503","date_updated":"2020-07-14T12:46:50Z","content_type":"application/pdf","date_created":"2018-12-12T11:53:42Z","relation":"main_file","access_level":"open_access","creator":"system"}],"has_accepted_license":"1","_id":"5422","ddc":["020"],"status":"public","oa":1,"language":[{"iso":"eng"}],"citation":{"mla":"Porsche, Jana. <i>Notes from Research Data Alliance Plenary Meeting in Dublin, Ireland</i>. none, 2014.","short":"J. Porsche, Notes from Research Data Alliance Plenary Meeting in Dublin, Ireland, none, 2014.","ista":"Porsche J. 2014. Notes from Research Data Alliance Plenary Meeting in Dublin, Ireland, none,p.","ama":"Porsche J. <i>Notes from Research Data Alliance Plenary Meeting in Dublin, Ireland</i>. none; 2014.","apa":"Porsche, J. (2014). <i>Notes from Research Data Alliance Plenary Meeting in Dublin, Ireland</i>. none.","ieee":"J. Porsche, <i>Notes from Research Data Alliance Plenary Meeting in Dublin, Ireland</i>. none, 2014.","chicago":"Porsche, Jana. <i>Notes from Research Data Alliance Plenary Meeting in Dublin, Ireland</i>. none, 2014."}},{"date_published":"2014-07-29T00:00:00Z","pubrep_id":"300","author":[{"id":"2E5DCA20-F248-11E8-B48F-1D18A9856A87","full_name":"Chatterjee, Krishnendu","orcid":"0000-0002-4561-241X","last_name":"Chatterjee","first_name":"Krishnendu"},{"full_name":"Kössler, Alexander","first_name":"Alexander","last_name":"Kössler"},{"orcid":"0000-0002-8943-0722","last_name":"Pavlogiannis","first_name":"Andreas","id":"49704004-F248-11E8-B48F-1D18A9856A87","full_name":"Pavlogiannis, Andreas"},{"first_name":"Ulrich","last_name":"Schmid","full_name":"Schmid, Ulrich"}],"date_updated":"2023-02-23T10:11:15Z","alternative_title":["IST Austria Technical Report"],"doi":"10.15479/AT:IST-2014-300-v1-1","related_material":{"record":[{"relation":"later_version","status":"public","id":"1714"}]},"abstract":[{"lang":"eng","text":"We present a flexible framework for the automated competitive analysis of on-line scheduling algorithms for firm- deadline real-time tasks based on multi-objective graphs: Given a taskset and an on-line scheduling algorithm specified as a labeled transition system, along with some optional safety, liveness, and/or limit-average constraints for the adversary, we automatically compute the competitive ratio of the algorithm w.r.t. a clairvoyant scheduler. We demonstrate the flexibility and power of our approach by comparing the competitive ratio of several on-line algorithms, including D(over), that have been proposed in the past, for various tasksets. Our experimental results reveal that none of these algorithms is universally optimal, in the sense that there are tasksets where other schedulers provide better performance. Our framework is hence a very useful design tool for selecting optimal algorithms for a given application. "}],"file_date_updated":"2020-07-14T12:46:50Z","department":[{"_id":"KrCh"}],"title":"A framework for automated competitive analysis of on-line scheduling of firm-deadline tasks","publisher":"IST Austria","date_created":"2018-12-12T11:39:15Z","oa_version":"Published Version","oa":1,"status":"public","ddc":["005"],"day":"29","citation":{"apa":"Chatterjee, K., Kössler, A., Pavlogiannis, A., &#38; Schmid, U. (2014). <i>A framework for automated competitive analysis of on-line scheduling of firm-deadline tasks</i>. IST Austria. <a href=\"https://doi.org/10.15479/AT:IST-2014-300-v1-1\">https://doi.org/10.15479/AT:IST-2014-300-v1-1</a>","chicago":"Chatterjee, Krishnendu, Alexander Kössler, Andreas Pavlogiannis, and Ulrich Schmid. <i>A Framework for Automated Competitive Analysis of On-Line Scheduling of Firm-Deadline Tasks</i>. IST Austria, 2014. <a href=\"https://doi.org/10.15479/AT:IST-2014-300-v1-1\">https://doi.org/10.15479/AT:IST-2014-300-v1-1</a>.","ieee":"K. Chatterjee, A. Kössler, A. Pavlogiannis, and U. Schmid, <i>A framework for automated competitive analysis of on-line scheduling of firm-deadline tasks</i>. IST Austria, 2014.","mla":"Chatterjee, Krishnendu, et al. <i>A Framework for Automated Competitive Analysis of On-Line Scheduling of Firm-Deadline Tasks</i>. IST Austria, 2014, doi:<a href=\"https://doi.org/10.15479/AT:IST-2014-300-v1-1\">10.15479/AT:IST-2014-300-v1-1</a>.","ista":"Chatterjee K, Kössler A, Pavlogiannis A, Schmid U. 2014. A framework for automated competitive analysis of on-line scheduling of firm-deadline tasks, IST Austria, 14p.","short":"K. Chatterjee, A. Kössler, A. Pavlogiannis, U. Schmid, A Framework for Automated Competitive Analysis of On-Line Scheduling of Firm-Deadline Tasks, IST Austria, 2014.","ama":"Chatterjee K, Kössler A, Pavlogiannis A, Schmid U. <i>A Framework for Automated Competitive Analysis of On-Line Scheduling of Firm-Deadline Tasks</i>. IST Austria; 2014. doi:<a href=\"https://doi.org/10.15479/AT:IST-2014-300-v1-1\">10.15479/AT:IST-2014-300-v1-1</a>"},"month":"07","publication_identifier":{"issn":["2664-1690"]},"language":[{"iso":"eng"}],"page":"14","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","type":"technical_report","_id":"5423","year":"2014","has_accepted_license":"1","file":[{"file_size":1270021,"file_name":"IST-2014-300-v1+1_main.pdf","checksum":"4b8fde4d9ef6653837f6803921d83032","date_updated":"2020-07-14T12:46:50Z","file_id":"5514","content_type":"application/pdf","date_created":"2018-12-12T11:53:53Z","relation":"main_file","creator":"system","access_level":"open_access"}],"publication_status":"published"},{"_id":"5424","publication_status":"published","has_accepted_license":"1","file":[{"date_created":"2018-12-12T11:53:51Z","content_type":"application/pdf","access_level":"open_access","creator":"system","relation":"main_file","checksum":"35009d5fad01198341e6c1a3353481b7","file_name":"IST-2014-305-v1+1_main.pdf","file_size":655774,"file_id":"5512","date_updated":"2020-07-14T12:46:51Z"}],"year":"2014","page":"12","type":"technical_report","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","citation":{"ieee":"K. Chatterjee, M. Chmelik, R. Gupta, and A. Kanodia, <i>Qualitative analysis of POMDPs with temporal logic specifications for robotics applications</i>. IST Austria, 2014.","chicago":"Chatterjee, Krishnendu, Martin Chmelik, Raghav Gupta, and Ayush Kanodia. <i>Qualitative Analysis of POMDPs with Temporal Logic Specifications for Robotics Applications</i>. IST Austria, 2014. <a href=\"https://doi.org/10.15479/AT:IST-2014-305-v1-1\">https://doi.org/10.15479/AT:IST-2014-305-v1-1</a>.","apa":"Chatterjee, K., Chmelik, M., Gupta, R., &#38; Kanodia, A. (2014). <i>Qualitative analysis of POMDPs with temporal logic specifications for robotics applications</i>. IST Austria. <a href=\"https://doi.org/10.15479/AT:IST-2014-305-v1-1\">https://doi.org/10.15479/AT:IST-2014-305-v1-1</a>","ama":"Chatterjee K, Chmelik M, Gupta R, Kanodia A. <i>Qualitative Analysis of POMDPs with Temporal Logic Specifications for Robotics Applications</i>. IST Austria; 2014. doi:<a href=\"https://doi.org/10.15479/AT:IST-2014-305-v1-1\">10.15479/AT:IST-2014-305-v1-1</a>","mla":"Chatterjee, Krishnendu, et al. <i>Qualitative Analysis of POMDPs with Temporal Logic Specifications for Robotics Applications</i>. IST Austria, 2014, doi:<a href=\"https://doi.org/10.15479/AT:IST-2014-305-v1-1\">10.15479/AT:IST-2014-305-v1-1</a>.","short":"K. Chatterjee, M. Chmelik, R. Gupta, A. Kanodia, Qualitative Analysis of POMDPs with Temporal Logic Specifications for Robotics Applications, IST Austria, 2014.","ista":"Chatterjee K, Chmelik M, Gupta R, Kanodia A. 2014. Qualitative analysis of POMDPs with temporal logic specifications for robotics applications, IST Austria, 12p."},"publication_identifier":{"issn":["2664-1690"]},"language":[{"iso":"eng"}],"month":"09","status":"public","oa":1,"day":"09","ddc":["005"],"oa_version":"Published Version","date_created":"2018-12-12T11:39:15Z","file_date_updated":"2020-07-14T12:46:51Z","department":[{"_id":"KrCh"}],"title":"Qualitative analysis of POMDPs with temporal logic specifications for robotics applications","publisher":"IST Austria","abstract":[{"lang":"eng","text":"We consider partially observable Markov decision processes (POMDPs), that are a standard framework for robotics applications to model uncertainties present in the real world, with temporal logic specifications. All temporal logic specifications in linear-time temporal logic (LTL) can be expressed as parity objectives. We study the qualitative analysis problem for POMDPs with parity objectives that asks whether there is a controller (policy) to ensure that the objective holds with probability 1 (almost-surely). While the qualitative analysis of POMDPs with parity objectives is undecidable, recent results show that when restricted to finite-memory policies the problem is EXPTIME-complete. While the problem is intractable in theory, we present a practical approach to solve the qualitative analysis problem. We designed several heuristics to deal with the exponential complexity, and have used our implementation on a number of well-known POMDP examples for robotics applications. Our results provide the first practical approach to solve the qualitative analysis of robot motion planning with LTL properties in the presence of uncertainty."}],"pubrep_id":"305","date_published":"2014-09-09T00:00:00Z","author":[{"last_name":"Chatterjee","orcid":"0000-0002-4561-241X","first_name":"Krishnendu","id":"2E5DCA20-F248-11E8-B48F-1D18A9856A87","full_name":"Chatterjee, Krishnendu"},{"first_name":"Martin","last_name":"Chmelik","full_name":"Chmelik, Martin","id":"3624234E-F248-11E8-B48F-1D18A9856A87"},{"full_name":"Gupta, Raghav","first_name":"Raghav","last_name":"Gupta"},{"full_name":"Kanodia, Ayush","last_name":"Kanodia","first_name":"Ayush"}],"related_material":{"record":[{"status":"public","relation":"later_version","id":"1732"},{"relation":"later_version","status":"public","id":"5426"}]},"alternative_title":["IST Austria Technical Report"],"date_updated":"2023-02-23T12:25:52Z","doi":"10.15479/AT:IST-2014-305-v1-1"},{"abstract":[{"lang":"eng","text":" We consider partially observable Markov decision processes (POMDPs) with a set of target states and every transition is associated with an integer cost. The optimization objective we study asks to minimize the expected total cost till the target set is reached, while ensuring that the target set is reached almost-surely (with probability 1). We show that for integer costs approximating the optimal cost is undecidable. For positive costs, our results are as follows: (i) we establish matching lower and upper bounds for the optimal cost and the bound is double exponential; (ii) we show that the problem of approximating the optimal cost is decidable and present approximation algorithms developing on the existing algorithms for POMDPs with finite-horizon objectives. While the worst-case running time of our algorithm is double exponential, we also present efficient stopping criteria for the algorithm and show experimentally that it performs well in many examples of interest."}],"scopus_import":1,"date_published":"2014-09-09T00:00:00Z","pubrep_id":"307","author":[{"first_name":"1","last_name":"Anonymous","full_name":"Anonymous, 1"},{"full_name":"Anonymous, 2","last_name":"Anonymous","first_name":"2"},{"full_name":"Anonymous, 3","last_name":"Anonymous","first_name":"3"},{"first_name":"4","last_name":"Anonymous","full_name":"Anonymous, 4"}],"related_material":{"record":[{"relation":"later_version","status":"public","id":"1529"}]},"alternative_title":["IST Austria Technical Report"],"date_updated":"2023-02-23T10:02:57Z","oa_version":"Published Version","date_created":"2018-12-12T11:39:15Z","title":"Optimal cost almost-sure reachability in POMDPs","file_date_updated":"2020-07-14T12:46:51Z","publisher":"IST Austria","citation":{"ieee":"1 Anonymous, 2 Anonymous, 3 Anonymous, and 4 Anonymous, <i>Optimal cost almost-sure reachability in POMDPs</i>. IST Austria, 2014.","chicago":"Anonymous, 1, 2 Anonymous, 3 Anonymous, and 4 Anonymous. <i>Optimal Cost Almost-Sure Reachability in POMDPs</i>. IST Austria, 2014.","apa":"Anonymous, 1, Anonymous, 2, Anonymous, 3, &#38; Anonymous, 4. (2014). <i>Optimal cost almost-sure reachability in POMDPs</i>. IST Austria.","ama":"Anonymous 1, Anonymous 2, Anonymous 3, Anonymous 4. <i>Optimal Cost Almost-Sure Reachability in POMDPs</i>. IST Austria; 2014.","mla":"Anonymous, 1, et al. <i>Optimal Cost Almost-Sure Reachability in POMDPs</i>. IST Austria, 2014.","ista":"Anonymous 1, Anonymous 2, Anonymous 3, Anonymous 4. 2014. Optimal cost almost-sure reachability in POMDPs, IST Austria, 22p.","short":"1 Anonymous, 2 Anonymous, 3 Anonymous, 4 Anonymous, Optimal Cost Almost-Sure Reachability in POMDPs, IST Austria, 2014."},"publication_identifier":{"issn":["2664-1690"]},"language":[{"iso":"eng"}],"month":"09","oa":1,"status":"public","day":"09","ddc":["000"],"_id":"5425","publication_status":"published","file":[{"date_updated":"2020-07-14T12:46:51Z","file_id":"5478","file_size":2725429,"checksum":"b9668a70d53c550b3cd64f0c77451c3d","file_name":"IST-2014-307-v1+1_main.pdf","relation":"main_file","access_level":"open_access","creator":"system","content_type":"application/pdf","date_created":"2018-12-12T11:53:17Z"},{"content_type":"text/plain","date_created":"2019-04-16T14:16:12Z","relation":"main_file","access_level":"closed","creator":"dernst","file_size":117,"file_name":"IST-2014-307-v1+2_authors.txt","checksum":"808ada1dddecc48ca041526fcc6a9efd","file_id":"6322","date_updated":"2020-07-14T12:46:51Z"}],"year":"2014","has_accepted_license":"1","page":"22","type":"technical_report","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87"},{"language":[{"iso":"eng"}],"publication_identifier":{"issn":["2664-1690"]},"month":"09","citation":{"apa":"Chatterjee, K., Chmelik, M., Gupta, R., &#38; Kanodia, A. (2014). <i>Qualitative analysis of POMDPs with temporal logic specifications for robotics applications</i>. IST Austria. <a href=\"https://doi.org/10.15479/AT:IST-2014-305-v2-1\">https://doi.org/10.15479/AT:IST-2014-305-v2-1</a>","ieee":"K. Chatterjee, M. Chmelik, R. Gupta, and A. Kanodia, <i>Qualitative analysis of POMDPs with temporal logic specifications for robotics applications</i>. IST Austria, 2014.","chicago":"Chatterjee, Krishnendu, Martin Chmelik, Raghav Gupta, and Ayush Kanodia. <i>Qualitative Analysis of POMDPs with Temporal Logic Specifications for Robotics Applications</i>. IST Austria, 2014. <a href=\"https://doi.org/10.15479/AT:IST-2014-305-v2-1\">https://doi.org/10.15479/AT:IST-2014-305-v2-1</a>.","ista":"Chatterjee K, Chmelik M, Gupta R, Kanodia A. 2014. Qualitative analysis of POMDPs with temporal logic specifications for robotics applications, IST Austria, 10p.","mla":"Chatterjee, Krishnendu, et al. <i>Qualitative Analysis of POMDPs with Temporal Logic Specifications for Robotics Applications</i>. IST Austria, 2014, doi:<a href=\"https://doi.org/10.15479/AT:IST-2014-305-v2-1\">10.15479/AT:IST-2014-305-v2-1</a>.","short":"K. Chatterjee, M. Chmelik, R. Gupta, A. Kanodia, Qualitative Analysis of POMDPs with Temporal Logic Specifications for Robotics Applications, IST Austria, 2014.","ama":"Chatterjee K, Chmelik M, Gupta R, Kanodia A. <i>Qualitative Analysis of POMDPs with Temporal Logic Specifications for Robotics Applications</i>. IST Austria; 2014. doi:<a href=\"https://doi.org/10.15479/AT:IST-2014-305-v2-1\">10.15479/AT:IST-2014-305-v2-1</a>"},"day":"29","ddc":["005"],"status":"public","oa":1,"publication_status":"published","has_accepted_license":"1","year":"2014","file":[{"date_created":"2018-12-12T11:54:15Z","content_type":"application/pdf","creator":"system","access_level":"open_access","relation":"main_file","checksum":"730c0a8e97cf2712a884b2cc423f3919","file_name":"IST-2014-305-v2+1_main2.pdf","file_size":656019,"file_id":"5537","date_updated":"2020-07-14T12:46:51Z"}],"_id":"5426","type":"technical_report","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","page":"10","abstract":[{"text":"We consider partially observable Markov decision processes (POMDPs), that are a standard framework for robotics applications to model uncertainties present in the real world, with temporal logic specifications. All temporal logic specifications in linear-time temporal logic (LTL) can be expressed as parity objectives. We study the qualitative analysis problem for POMDPs with parity objectives that asks whether there is a controller (policy) to ensure that the objective holds with probability 1 (almost-surely). While the qualitative analysis of POMDPs with parity objectives is undecidable, recent results show that when restricted to finite-memory policies the problem is EXPTIME-complete. While the problem is intractable in theory, we present a practical approach to solve the qualitative analysis problem. We designed several heuristics to deal with the exponential complexity, and have used our implementation on a number of well-known POMDP examples for robotics applications. Our results provide the first practical approach to solve the qualitative analysis of robot motion planning with LTL properties in the presence of uncertainty.","lang":"eng"}],"date_updated":"2023-02-23T12:25:47Z","alternative_title":["IST Austria Technical Report"],"doi":"10.15479/AT:IST-2014-305-v2-1","related_material":{"record":[{"id":"1732","relation":"later_version","status":"public"},{"id":"5424","status":"public","relation":"earlier_version"}]},"date_published":"2014-09-29T00:00:00Z","author":[{"last_name":"Chatterjee","orcid":"0000-0002-4561-241X","first_name":"Krishnendu","id":"2E5DCA20-F248-11E8-B48F-1D18A9856A87","full_name":"Chatterjee, Krishnendu"},{"full_name":"Chmelik, Martin","id":"3624234E-F248-11E8-B48F-1D18A9856A87","first_name":"Martin","last_name":"Chmelik"},{"first_name":"Raghav","last_name":"Gupta","full_name":"Gupta, Raghav"},{"last_name":"Kanodia","first_name":"Ayush","full_name":"Kanodia, Ayush"}],"pubrep_id":"311","oa_version":"Published Version","date_created":"2018-12-12T11:39:16Z","publisher":"IST Austria","title":"Qualitative analysis of POMDPs with temporal logic specifications for robotics applications","file_date_updated":"2020-07-14T12:46:51Z","department":[{"_id":"KrCh"}]},{"alternative_title":["IST Austria Technical Report"],"doi":"10.15479/AT:IST-2014-314-v1-1","date_updated":"2021-01-12T08:02:09Z","author":[{"id":"2E5DCA20-F248-11E8-B48F-1D18A9856A87","full_name":"Chatterjee, Krishnendu","last_name":"Chatterjee","orcid":"0000-0002-4561-241X","first_name":"Krishnendu"},{"orcid":"0000-0003-4783-0389","last_name":"Ibsen-Jensen","first_name":"Rasmus","id":"3B699956-F248-11E8-B48F-1D18A9856A87","full_name":"Ibsen-Jensen, Rasmus"},{"id":"49704004-F248-11E8-B48F-1D18A9856A87","full_name":"Pavlogiannis, Andreas","orcid":"0000-0002-8943-0722","last_name":"Pavlogiannis","first_name":"Andreas"}],"date_published":"2014-11-05T00:00:00Z","pubrep_id":"314","abstract":[{"text":"We consider graphs with n nodes together with their tree-decomposition that has b = O ( n ) bags and width t , on the standard RAM computational model with wordsize W = Θ (log n ) . Our contributions are two-fold: Our first contribution is an algorithm that given a graph and its tree-decomposition as input, computes a binary and balanced tree-decomposition of width at most 4 · t + 3 of the graph in O ( b ) time and space, improving a long-standing (from 1992) bound of O ( n · log n ) time for constant treewidth graphs. Our second contribution is on reachability queries for low treewidth graphs. We build on our tree-balancing algorithm and present a data-structure for graph reachability that requires O ( n · t 2 ) preprocessing time, O ( n · t ) space, and O ( d t/ log n e ) time for pair queries, and O ( n · t · log t/ log n ) time for single-source queries. For constant t our data-structure uses O ( n ) time for preprocessing, O (1) time for pair queries, and O ( n/ log n ) time for single-source queries. This is (asymptotically) optimal and is faster than DFS/BFS when answering more than a constant number of single-source queries.","lang":"eng"}],"publisher":"IST Austria","department":[{"_id":"KrCh"}],"title":"Optimal tree-decomposition balancing and reachability on low treewidth graphs","file_date_updated":"2020-07-14T12:46:52Z","date_created":"2018-12-12T11:39:16Z","oa_version":"Published Version","ddc":["000"],"day":"05","status":"public","oa":1,"month":"11","publication_identifier":{"issn":["2664-1690"]},"language":[{"iso":"eng"}],"citation":{"apa":"Chatterjee, K., Ibsen-Jensen, R., &#38; Pavlogiannis, A. (2014). <i>Optimal tree-decomposition balancing and reachability on low treewidth graphs</i>. IST Austria. <a href=\"https://doi.org/10.15479/AT:IST-2014-314-v1-1\">https://doi.org/10.15479/AT:IST-2014-314-v1-1</a>","chicago":"Chatterjee, Krishnendu, Rasmus Ibsen-Jensen, and Andreas Pavlogiannis. <i>Optimal Tree-Decomposition Balancing and Reachability on Low Treewidth Graphs</i>. IST Austria, 2014. <a href=\"https://doi.org/10.15479/AT:IST-2014-314-v1-1\">https://doi.org/10.15479/AT:IST-2014-314-v1-1</a>.","ieee":"K. Chatterjee, R. Ibsen-Jensen, and A. Pavlogiannis, <i>Optimal tree-decomposition balancing and reachability on low treewidth graphs</i>. IST Austria, 2014.","short":"K. Chatterjee, R. Ibsen-Jensen, A. Pavlogiannis, Optimal Tree-Decomposition Balancing and Reachability on Low Treewidth Graphs, IST Austria, 2014.","ista":"Chatterjee K, Ibsen-Jensen R, Pavlogiannis A. 2014. Optimal tree-decomposition balancing and reachability on low treewidth graphs, IST Austria, 24p.","mla":"Chatterjee, Krishnendu, et al. <i>Optimal Tree-Decomposition Balancing and Reachability on Low Treewidth Graphs</i>. IST Austria, 2014, doi:<a href=\"https://doi.org/10.15479/AT:IST-2014-314-v1-1\">10.15479/AT:IST-2014-314-v1-1</a>.","ama":"Chatterjee K, Ibsen-Jensen R, Pavlogiannis A. <i>Optimal Tree-Decomposition Balancing and Reachability on Low Treewidth Graphs</i>. IST Austria; 2014. doi:<a href=\"https://doi.org/10.15479/AT:IST-2014-314-v1-1\">10.15479/AT:IST-2014-314-v1-1</a>"},"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","type":"technical_report","page":"24","year":"2014","has_accepted_license":"1","file":[{"file_name":"IST-2014-314-v1+1_long.pdf","checksum":"9d3b90bf4fff74664f182f2d95ef727a","file_size":405561,"file_id":"5471","date_updated":"2020-07-14T12:46:52Z","date_created":"2018-12-12T11:53:10Z","content_type":"application/pdf","access_level":"open_access","creator":"system","relation":"main_file"}],"publication_status":"published","_id":"5427"}]