[{"publist_id":"7354","oa":1,"publication_identifier":{"issn":["15293785"]},"type":"journal_article","date_published":"2017-12-01T00:00:00Z","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","status":"public","related_material":{"record":[{"status":"public","id":"1656","relation":"earlier_version"},{"id":"5415","relation":"earlier_version","status":"public"},{"status":"public","relation":"earlier_version","id":"5436"}]},"main_file_link":[{"url":"https://arxiv.org/abs/1606.03598","open_access":"1"}],"article_number":"31","month":"12","project":[{"name":"Rigorous Systems Engineering","grant_number":"S 11407_N23","_id":"25832EC2-B435-11E9-9278-68D0E5697425","call_identifier":"FWF"},{"grant_number":"Z211","name":"The Wittgenstein Prize","call_identifier":"FWF","_id":"25F42A32-B435-11E9-9278-68D0E5697425"},{"name":"Modern Graph Algorithmic Techniques in Formal Verification","grant_number":"P 23499-N23","call_identifier":"FWF","_id":"2584A770-B435-11E9-9278-68D0E5697425"},{"call_identifier":"FP7","_id":"2581B60A-B435-11E9-9278-68D0E5697425","name":"Quantitative Graph Games: Theory and Applications","grant_number":"279307"},{"name":"Microsoft Research Faculty Fellowship","_id":"2587B514-B435-11E9-9278-68D0E5697425"}],"oa_version":"Preprint","publication":"ACM Transactions on Computational Logic (TOCL)","language":[{"iso":"eng"}],"abstract":[{"text":"Recently there has been a significant effort to handle quantitative properties in formal verification and synthesis. While weighted automata over finite and infinite words provide a natural and flexible framework to express quantitative properties, perhaps surprisingly, some basic system properties such as average response time cannot be expressed using weighted automata or in any other known decidable formalism. In this work, we introduce nested weighted automata as a natural extension of weighted automata, which makes it possible to express important quantitative properties such as average response time. In nested weighted automata, a master automaton spins off and collects results from weighted slave automata, each of which computes a quantity along a finite portion of an infinite word. Nested weighted automata can be viewed as the quantitative analogue of monitor automata, which are used in runtime verification. We establish an almost-complete decidability picture for the basic decision problems about nested weighted automata and illustrate their applicability in several domains. In particular, nested weighted automata can be used to decide average response time properties.","lang":"eng"}],"day":"01","arxiv":1,"doi":"10.1145/3152769","external_id":{"arxiv":["1606.03598"]},"year":"2017","citation":{"mla":"Chatterjee, Krishnendu, et al. “Nested Weighted Automata.” <i>ACM Transactions on Computational Logic (TOCL)</i>, vol. 18, no. 4, 31, ACM, 2017, doi:<a href=\"https://doi.org/10.1145/3152769\">10.1145/3152769</a>.","short":"K. Chatterjee, T.A. Henzinger, J. Otop, ACM Transactions on Computational Logic (TOCL) 18 (2017).","ista":"Chatterjee K, Henzinger TA, Otop J. 2017. Nested weighted automata. ACM Transactions on Computational Logic (TOCL). 18(4), 31.","ama":"Chatterjee K, Henzinger TA, Otop J. Nested weighted automata. <i>ACM Transactions on Computational Logic (TOCL)</i>. 2017;18(4). doi:<a href=\"https://doi.org/10.1145/3152769\">10.1145/3152769</a>","apa":"Chatterjee, K., Henzinger, T. A., &#38; Otop, J. (2017). Nested weighted automata. <i>ACM Transactions on Computational Logic (TOCL)</i>. ACM. <a href=\"https://doi.org/10.1145/3152769\">https://doi.org/10.1145/3152769</a>","chicago":"Chatterjee, Krishnendu, Thomas A Henzinger, and Jan Otop. “Nested Weighted Automata.” <i>ACM Transactions on Computational Logic (TOCL)</i>. ACM, 2017. <a href=\"https://doi.org/10.1145/3152769\">https://doi.org/10.1145/3152769</a>.","ieee":"K. Chatterjee, T. A. Henzinger, and J. Otop, “Nested weighted automata,” <i>ACM Transactions on Computational Logic (TOCL)</i>, vol. 18, no. 4. ACM, 2017."},"date_updated":"2023-02-23T12:26:19Z","volume":18,"intvolume":"        18","title":"Nested weighted automata","date_created":"2018-12-11T11:46:38Z","department":[{"_id":"KrCh"},{"_id":"ToHe"}],"publication_status":"published","issue":"4","author":[{"id":"2E5DCA20-F248-11E8-B48F-1D18A9856A87","last_name":"Chatterjee","first_name":"Krishnendu","full_name":"Chatterjee, Krishnendu","orcid":"0000-0002-4561-241X"},{"first_name":"Thomas A","last_name":"Henzinger","orcid":"0000−0002−2985−7724","full_name":"Henzinger, Thomas A","id":"40876CD8-F248-11E8-B48F-1D18A9856A87"},{"full_name":"Otop, Jan","first_name":"Jan","last_name":"Otop","id":"2FC5DA74-F248-11E8-B48F-1D18A9856A87"}],"scopus_import":1,"_id":"467","publisher":"ACM","quality_controlled":"1","ec_funded":1},{"year":"2017","citation":{"ista":"Daca P, Henzinger TA, Kretinsky J, Petrov T. 2017. Faster statistical model checking for unbounded temporal properties. ACM Transactions on Computational Logic (TOCL). 18(2), 12.","mla":"Daca, Przemyslaw, et al. “Faster Statistical Model Checking for Unbounded Temporal Properties.” <i>ACM Transactions on Computational Logic (TOCL)</i>, vol. 18, no. 2, 12, ACM, 2017, doi:<a href=\"https://doi.org/10.1145/3060139\">10.1145/3060139</a>.","short":"P. Daca, T.A. Henzinger, J. Kretinsky, T. Petrov, ACM Transactions on Computational Logic (TOCL) 18 (2017).","chicago":"Daca, Przemyslaw, Thomas A Henzinger, Jan Kretinsky, and Tatjana Petrov. “Faster Statistical Model Checking for Unbounded Temporal Properties.” <i>ACM Transactions on Computational Logic (TOCL)</i>. ACM, 2017. <a href=\"https://doi.org/10.1145/3060139\">https://doi.org/10.1145/3060139</a>.","ieee":"P. Daca, T. A. Henzinger, J. Kretinsky, and T. Petrov, “Faster statistical model checking for unbounded temporal properties,” <i>ACM Transactions on Computational Logic (TOCL)</i>, vol. 18, no. 2. ACM, 2017.","apa":"Daca, P., Henzinger, T. A., Kretinsky, J., &#38; Petrov, T. (2017). Faster statistical model checking for unbounded temporal properties. <i>ACM Transactions on Computational Logic (TOCL)</i>. ACM. <a href=\"https://doi.org/10.1145/3060139\">https://doi.org/10.1145/3060139</a>","ama":"Daca P, Henzinger TA, Kretinsky J, Petrov T. Faster statistical model checking for unbounded temporal properties. <i>ACM Transactions on Computational Logic (TOCL)</i>. 2017;18(2). doi:<a href=\"https://doi.org/10.1145/3060139\">10.1145/3060139</a>"},"date_updated":"2023-02-21T16:48:11Z","abstract":[{"text":"We present a new algorithm for the statistical model checking of Markov chains with respect to unbounded temporal properties, including full linear temporal logic. The main idea is that we monitor each simulation run on the fly, in order to detect quickly if a bottom strongly connected component is entered with high probability, in which case the simulation run can be terminated early. As a result, our simulation runs are often much shorter than required by termination bounds that are computed a priori for a desired level of confidence on a large state space. In comparison to previous algorithms for statistical model checking our method is not only faster in many cases but also requires less information about the system, namely, only the minimum transition probability that occurs in the Markov chain. In addition, our method can be generalised to unbounded quantitative properties such as mean-payoff bounds. ","lang":"eng"}],"day":"01","doi":"10.1145/3060139","volume":18,"issue":"2","author":[{"id":"49351290-F248-11E8-B48F-1D18A9856A87","last_name":"Daca","first_name":"Przemyslaw","full_name":"Daca, Przemyslaw"},{"last_name":"Henzinger","first_name":"Thomas A","full_name":"Henzinger, Thomas A","orcid":"0000−0002−2985−7724","id":"40876CD8-F248-11E8-B48F-1D18A9856A87"},{"orcid":"0000-0002-8122-2881","full_name":"Kretinsky, Jan","first_name":"Jan","last_name":"Kretinsky","id":"44CEF464-F248-11E8-B48F-1D18A9856A87"},{"last_name":"Petrov","first_name":"Tatjana","full_name":"Petrov, Tatjana","orcid":"0000-0002-9041-0905","id":"3D5811FC-F248-11E8-B48F-1D18A9856A87"}],"scopus_import":1,"_id":"471","intvolume":"        18","title":"Faster statistical model checking for unbounded temporal properties","department":[{"_id":"ToHe"}],"date_created":"2018-12-11T11:46:39Z","publication_status":"published","ec_funded":1,"quality_controlled":"1","publisher":"ACM","type":"journal_article","date_published":"2017-05-01T00:00:00Z","publist_id":"7349","oa":1,"publication_identifier":{"issn":["15293785"]},"related_material":{"record":[{"status":"public","relation":"earlier_version","id":"1234"}]},"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","status":"public","main_file_link":[{"open_access":"1","url":"https://arxiv.org/abs/1504.05739"}],"publication":"ACM Transactions on Computational Logic (TOCL)","article_number":"12","month":"05","project":[{"_id":"25EE3708-B435-11E9-9278-68D0E5697425","call_identifier":"FP7","name":"Quantitative Reactive Modeling","grant_number":"267989"},{"name":"Moderne Concurrency Paradigms","grant_number":"S11402-N23","call_identifier":"FWF","_id":"25F5A88A-B435-11E9-9278-68D0E5697425"},{"name":"The Wittgenstein Prize","grant_number":"Z211","call_identifier":"FWF","_id":"25F42A32-B435-11E9-9278-68D0E5697425"},{"grant_number":"291734","name":"International IST Postdoc Fellowship Programme","call_identifier":"FP7","_id":"25681D80-B435-11E9-9278-68D0E5697425"}],"oa_version":"Submitted Version","language":[{"iso":"eng"}]}]