[{"publisher":"American Chemical Society","month":"04","intvolume":" 31","abstract":[{"lang":"eng","text":"Monodisperse Pd2Sn nanorods with tuned size and aspect ratio were prepared by co-reduction of metal salts in the presence of trioctylphosphine, amine, and chloride ions. Asymmetric Pd2Sn nanostructures were achieved by the selective desorption of a surfactant mediated by chlorine ions. A preliminary evaluation of the geometry influence on catalytic properties evidenced Pd2Sn nanorods to have improved catalytic performance. In view of these results, Pd2Sn nanorods were also evaluated for water denitration. "}],"oa_version":"None","page":"3952 - 3957","date_published":"2015-04-07T00:00:00Z","issue":"13","volume":31,"doi":"10.1021/la504906q","date_created":"2018-12-11T11:46:02Z","publication_status":"published","year":"2015","day":"07","language":[{"iso":"eng"}],"publication":"Langmuir","type":"journal_article","status":"public","_id":"362","publist_id":"7469","author":[{"full_name":"Lu, Zhishan","last_name":"Lu","first_name":"Zhishan"},{"orcid":"0000-0001-5013-2843","full_name":"Ibáñez, Maria","last_name":"Ibáñez","id":"43C61214-F248-11E8-B48F-1D18A9856A87","first_name":"Maria"},{"first_name":"Ana","full_name":"Antolín, Ana","last_name":"Antolín"},{"first_name":"Aziz","full_name":"Genç, Aziz","last_name":"Genç"},{"last_name":"Shavel","full_name":"Shavel, Alexey","first_name":"Alexey"},{"full_name":"Contreras, Sandra","last_name":"Contreras","first_name":"Sandra"},{"full_name":"Medina, Francesc","last_name":"Medina","first_name":"Francesc"},{"last_name":"Arbiol","full_name":"Arbiol, Jordi","first_name":"Jordi"},{"full_name":"Cabot, Andreu","last_name":"Cabot","first_name":"Andreu"}],"article_processing_charge":"No","title":"Size and aspect ratio control of Pd inf 2 inf Sn nanorods and their water denitration properties","citation":{"ista":"Lu Z, Ibáñez M, Antolín A, Genç A, Shavel A, Contreras S, Medina F, Arbiol J, Cabot A. 2015. Size and aspect ratio control of Pd inf 2 inf Sn nanorods and their water denitration properties. Langmuir. 31(13), 3952–3957.","chicago":"Lu, Zhishan, Maria Ibáñez, Ana Antolín, Aziz Genç, Alexey Shavel, Sandra Contreras, Francesc Medina, Jordi Arbiol, and Andreu Cabot. “Size and Aspect Ratio Control of Pd Inf 2 Inf Sn Nanorods and Their Water Denitration Properties.” Langmuir. American Chemical Society, 2015. https://doi.org/10.1021/la504906q.","ieee":"Z. Lu et al., “Size and aspect ratio control of Pd inf 2 inf Sn nanorods and their water denitration properties,” Langmuir, vol. 31, no. 13. American Chemical Society, pp. 3952–3957, 2015.","short":"Z. Lu, M. Ibáñez, A. Antolín, A. Genç, A. Shavel, S. Contreras, F. Medina, J. Arbiol, A. Cabot, Langmuir 31 (2015) 3952–3957.","ama":"Lu Z, Ibáñez M, Antolín A, et al. Size and aspect ratio control of Pd inf 2 inf Sn nanorods and their water denitration properties. Langmuir. 2015;31(13):3952-3957. doi:10.1021/la504906q","apa":"Lu, Z., Ibáñez, M., Antolín, A., Genç, A., Shavel, A., Contreras, S., … Cabot, A. (2015). Size and aspect ratio control of Pd inf 2 inf Sn nanorods and their water denitration properties. Langmuir. American Chemical Society. https://doi.org/10.1021/la504906q","mla":"Lu, Zhishan, et al. “Size and Aspect Ratio Control of Pd Inf 2 Inf Sn Nanorods and Their Water Denitration Properties.” Langmuir, vol. 31, no. 13, American Chemical Society, 2015, pp. 3952–57, doi:10.1021/la504906q."},"date_updated":"2021-01-12T07:44:42Z","extern":"1","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87"},{"scopus_import":1,"main_file_link":[{"url":"http://arxiv.org/abs/1006.0673","open_access":"1"}],"month":"12","intvolume":" 245","abstract":[{"text":"We consider two-player zero-sum games on graphs. These games can be classified on the basis of the information of the players and on the mode of interaction between them. On the basis of information the classification is as follows: (a) partial-observation (both players have partial view of the game); (b) one-sided complete-observation (one player has complete observation); and (c) complete-observation (both players have complete view of the game). On the basis of mode of interaction we have the following classification: (a) concurrent (both players interact simultaneously); and (b) turn-based (both players interact in turn). The two sources of randomness in these games are randomness in transition function and randomness in strategies. In general, randomized strategies are more powerful than deterministic strategies, and randomness in transitions gives more general classes of games. In this work we present a complete characterization for the classes of games where randomness is not helpful in: (a) the transition function probabilistic transition can be simulated by deterministic transition); and (b) strategies (pure strategies are as powerful as randomized strategies). As consequence of our characterization we obtain new undecidability results for these games. ","lang":"eng"}],"oa_version":"Preprint","issue":"12","related_material":{"record":[{"id":"3856","status":"public","relation":"earlier_version"}]},"volume":245,"ec_funded":1,"publication_status":"published","language":[{"iso":"eng"}],"type":"journal_article","status":"public","_id":"1731","department":[{"_id":"KrCh"},{"_id":"ToHe"}],"date_updated":"2023-02-23T11:45:42Z","quality_controlled":"1","publisher":"Elsevier","oa":1,"page":"3 - 16","doi":"10.1016/j.ic.2015.06.003","date_published":"2015-12-01T00:00:00Z","date_created":"2018-12-11T11:53:42Z","year":"2015","day":"01","publication":"Information and Computation","project":[{"call_identifier":"FWF","_id":"2584A770-B435-11E9-9278-68D0E5697425","name":"Modern Graph Algorithmic Techniques in Formal Verification","grant_number":"P 23499-N23"},{"name":"Game Theory","grant_number":"S11407","call_identifier":"FWF","_id":"25863FF4-B435-11E9-9278-68D0E5697425"},{"grant_number":"279307","name":"Quantitative Graph Games: Theory and Applications","_id":"2581B60A-B435-11E9-9278-68D0E5697425","call_identifier":"FP7"},{"name":"Microsoft Research Faculty Fellowship","_id":"2587B514-B435-11E9-9278-68D0E5697425"},{"_id":"25EE3708-B435-11E9-9278-68D0E5697425","call_identifier":"FP7","grant_number":"267989","name":"Quantitative Reactive Modeling"},{"call_identifier":"FP7","_id":"25EFB36C-B435-11E9-9278-68D0E5697425","name":"COMponent-Based Embedded Systems design Techniques","grant_number":"215543"},{"call_identifier":"FP7","_id":"25F1337C-B435-11E9-9278-68D0E5697425","grant_number":"214373","name":"Design for Embedded Systems"},{"name":"Rigorous Systems Engineering","grant_number":"S 11407_N23","call_identifier":"FWF","_id":"25832EC2-B435-11E9-9278-68D0E5697425"}],"author":[{"full_name":"Chatterjee, Krishnendu","orcid":"0000-0002-4561-241X","last_name":"Chatterjee","id":"2E5DCA20-F248-11E8-B48F-1D18A9856A87","first_name":"Krishnendu"},{"first_name":"Laurent","last_name":"Doyen","full_name":"Doyen, Laurent"},{"first_name":"Hugo","last_name":"Gimbert","full_name":"Gimbert, Hugo"},{"first_name":"Thomas A","id":"40876CD8-F248-11E8-B48F-1D18A9856A87","last_name":"Henzinger","orcid":"0000−0002−2985−7724","full_name":"Henzinger, Thomas A"}],"publist_id":"5395","title":"Randomness for free","citation":{"apa":"Chatterjee, K., Doyen, L., Gimbert, H., & Henzinger, T. A. (2015). Randomness for free. Information and Computation. Elsevier. https://doi.org/10.1016/j.ic.2015.06.003","ama":"Chatterjee K, Doyen L, Gimbert H, Henzinger TA. Randomness for free. Information and Computation. 2015;245(12):3-16. doi:10.1016/j.ic.2015.06.003","short":"K. Chatterjee, L. Doyen, H. Gimbert, T.A. Henzinger, Information and Computation 245 (2015) 3–16.","ieee":"K. Chatterjee, L. Doyen, H. Gimbert, and T. A. Henzinger, “Randomness for free,” Information and Computation, vol. 245, no. 12. Elsevier, pp. 3–16, 2015.","mla":"Chatterjee, Krishnendu, et al. “Randomness for Free.” Information and Computation, vol. 245, no. 12, Elsevier, 2015, pp. 3–16, doi:10.1016/j.ic.2015.06.003.","ista":"Chatterjee K, Doyen L, Gimbert H, Henzinger TA. 2015. Randomness for free. Information and Computation. 245(12), 3–16.","chicago":"Chatterjee, Krishnendu, Laurent Doyen, Hugo Gimbert, and Thomas A Henzinger. “Randomness for Free.” Information and Computation. Elsevier, 2015. https://doi.org/10.1016/j.ic.2015.06.003."},"user_id":"3E5EF7F0-F248-11E8-B48F-1D18A9856A87"},{"article_type":"original","type":"journal_article","status":"public","_id":"334","article_processing_charge":"No","author":[{"last_name":"Yu","full_name":"Yu, Xuelian","first_name":"Xuelian"},{"last_name":"Liu","full_name":"Liu, Jingjing","first_name":"Jingjing"},{"full_name":"Genç, Aziz","last_name":"Genç","first_name":"Aziz"},{"id":"43C61214-F248-11E8-B48F-1D18A9856A87","first_name":"Maria","last_name":"Ibáñez","full_name":"Ibáñez, Maria","orcid":"0000-0001-5013-2843"},{"last_name":"Luo","full_name":"Luo, Zhishan","first_name":"Zhishan"},{"full_name":"Shavel, Alexey","last_name":"Shavel","first_name":"Alexey"},{"first_name":"Jordi","full_name":"Arbiol, Jordi","last_name":"Arbiol"},{"first_name":"Guangjin","last_name":"Zhang","full_name":"Zhang, Guangjin"},{"full_name":"Zhang, Yihe","last_name":"Zhang","first_name":"Yihe"},{"full_name":"Cabot, Andreu","last_name":"Cabot","first_name":"Andreu"}],"publist_id":"7508","title":"Cu2ZnSnS4–Ag2S Nanoscale p–n heterostructures as sensitizers for photoelectrochemical water splitting","date_updated":"2021-01-12T07:42:46Z","citation":{"ista":"Yu X, Liu J, Genç A, Ibáñez M, Luo Z, Shavel A, Arbiol J, Zhang G, Zhang Y, Cabot A. 2015. Cu2ZnSnS4–Ag2S Nanoscale p–n heterostructures as sensitizers for photoelectrochemical water splitting. Langmuir. 31(38), 10555–10561.","chicago":"Yu, Xuelian, Jingjing Liu, Aziz Genç, Maria Ibáñez, Zhishan Luo, Alexey Shavel, Jordi Arbiol, Guangjin Zhang, Yihe Zhang, and Andreu Cabot. “Cu2ZnSnS4–Ag2S Nanoscale p–n Heterostructures as Sensitizers for Photoelectrochemical Water Splitting.” Langmuir. American Chemical Society, 2015. https://doi.org/10.1021/acs.langmuir.5b02490.","ama":"Yu X, Liu J, Genç A, et al. Cu2ZnSnS4–Ag2S Nanoscale p–n heterostructures as sensitizers for photoelectrochemical water splitting. Langmuir. 2015;31(38):10555-10561. doi:10.1021/acs.langmuir.5b02490","apa":"Yu, X., Liu, J., Genç, A., Ibáñez, M., Luo, Z., Shavel, A., … Cabot, A. (2015). Cu2ZnSnS4–Ag2S Nanoscale p–n heterostructures as sensitizers for photoelectrochemical water splitting. Langmuir. American Chemical Society. https://doi.org/10.1021/acs.langmuir.5b02490","ieee":"X. Yu et al., “Cu2ZnSnS4–Ag2S Nanoscale p–n heterostructures as sensitizers for photoelectrochemical water splitting,” Langmuir, vol. 31, no. 38. American Chemical Society, pp. 10555–10561, 2015.","short":"X. Yu, J. Liu, A. Genç, M. Ibáñez, Z. Luo, A. Shavel, J. Arbiol, G. Zhang, Y. Zhang, A. Cabot, Langmuir 31 (2015) 10555–10561.","mla":"Yu, Xuelian, et al. “Cu2ZnSnS4–Ag2S Nanoscale p–n Heterostructures as Sensitizers for Photoelectrochemical Water Splitting.” Langmuir, vol. 31, no. 38, American Chemical Society, 2015, pp. 10555–61, doi:10.1021/acs.langmuir.5b02490."},"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","extern":"1","publisher":"American Chemical Society","quality_controlled":"1","intvolume":" 31","month":"09","abstract":[{"lang":"eng","text":"A cation exchange-based route was used to produce Cu2ZnSnS4 (CZTS)-Ag2S nanoparticles with controlled composition. We report a detailed study of the formation of such CZTS-Ag2S nanoheterostructures and of their photocatalytic properties. When compared to pure CZTS, the use of nanoscale p-n heterostructures as light absorbers for photocatalytic water splitting provides superior photocurrents. We associate this experimental fact to a higher separation efficiency of the photogenerated electron-hole pairs. We believe this and other type-II nanoheterostructures will open the door to the use of CZTS, with excellent light absorption properties and made of abundant and environmental friendly elements, to the field of photocatalysis."}],"acknowledgement":"This work was supported by the European Regional Development Funds, the Framework 7 program under project SCALENANO (FP7-NMP-ENERGY-2011-284486), the Spanish MINECO under Contract ENE2013-46624-C4-3-R and Fundamental Research Funds for the Central Universities (2652015086). Authors acknowledge the funding from Generalitat de Catalunya 2014 SGR 1638.","oa_version":"None","page":"10555 - 10561","date_created":"2018-12-11T11:45:52Z","date_published":"2015-09-07T00:00:00Z","doi":"10.1021/acs.langmuir.5b02490","volume":31,"issue":"38","year":"2015","publication_status":"published","language":[{"iso":"eng"}],"publication":"Langmuir","day":"07"},{"oa_version":"None","acknowledgement":"This work was supported by the National Natural Science Foundation of China (Grant 21401212), Fundamental Research Funds for the Central Universities (2652015086), the Framework 7 program under project SCALENANO (FP7-NMP-ENERGY-2011-284486), and the MICINN project ENE2013-46624-C4-3-R. Authors acknowledge the funding from Generalitat de Catalunya 2014 SGR 1638.","abstract":[{"text":"We report the synthesis and photocatalytic and magnetic characterization of colloidal nanoheterostructures formed by combining a Pt-based magnetic metal alloy (PtCo, PtNi) with Cu2ZnSnS4 (CZTS). While CZTS is one of the main candidate materials for solar energy conversion, the introduction of a Pt-based alloy on its surface strongly influences its chemical and electronic properties, ultimately determining its functionality. In this regard, up to a 15-fold increase of the photocatalytic hydrogen evolution activity was obtained with CZTS–PtCo when compared with CZTS. Furthermore, two times higher hydrogen evolution rates were obtained for CZTS–PtCo when compared with CZTS–Pt, in spite of the lower precious metal loading of the former. Besides, the magnetic properties of the PtCo nanoparticles attached to the CZTS nanocrystals were retained in the heterostructures, which could facilitate catalyst purification and recovery for its posterior recycling and/or reutilization.","lang":"eng"}],"month":"08","intvolume":" 119","publisher":"American Chemical Society","day":"26","language":[{"iso":"eng"}],"publication":"Journal of Physical Chemistry C","year":"2015","publication_status":"published","volume":119,"doi":"10.1021/acs.jpcc.5b06199","issue":"38","date_published":"2015-08-26T00:00:00Z","date_created":"2018-12-11T11:46:01Z","page":"21882 - 21888","_id":"361","status":"public","type":"journal_article","extern":"1","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","date_updated":"2021-01-12T07:44:38Z","citation":{"ista":"Yu X, An X, Genç A, Ibáñez M, Arbiol J, Zhang Y, Cabot A. 2015. Cu2ZnSnS4–PtM (M = Co, Ni) nanoheterostructures for photocatalytic hydrogen evolution. Journal of Physical Chemistry C. 119(38), 21882–21888.","chicago":"Yu, Xuelian, Xiaoqiang An, Aziz Genç, Maria Ibáñez, Jordi Arbiol, Yihe Zhang, and Andreu Cabot. “Cu2ZnSnS4–PtM (M = Co, Ni) Nanoheterostructures for Photocatalytic Hydrogen Evolution.” Journal of Physical Chemistry C. American Chemical Society, 2015. https://doi.org/10.1021/acs.jpcc.5b06199.","ama":"Yu X, An X, Genç A, et al. Cu2ZnSnS4–PtM (M = Co, Ni) nanoheterostructures for photocatalytic hydrogen evolution. Journal of Physical Chemistry C. 2015;119(38):21882-21888. doi:10.1021/acs.jpcc.5b06199","apa":"Yu, X., An, X., Genç, A., Ibáñez, M., Arbiol, J., Zhang, Y., & Cabot, A. (2015). Cu2ZnSnS4–PtM (M = Co, Ni) nanoheterostructures for photocatalytic hydrogen evolution. Journal of Physical Chemistry C. American Chemical Society. https://doi.org/10.1021/acs.jpcc.5b06199","ieee":"X. Yu et al., “Cu2ZnSnS4–PtM (M = Co, Ni) nanoheterostructures for photocatalytic hydrogen evolution,” Journal of Physical Chemistry C, vol. 119, no. 38. American Chemical Society, pp. 21882–21888, 2015.","short":"X. Yu, X. An, A. Genç, M. Ibáñez, J. Arbiol, Y. Zhang, A. Cabot, Journal of Physical Chemistry C 119 (2015) 21882–21888.","mla":"Yu, Xuelian, et al. “Cu2ZnSnS4–PtM (M = Co, Ni) Nanoheterostructures for Photocatalytic Hydrogen Evolution.” Journal of Physical Chemistry C, vol. 119, no. 38, American Chemical Society, 2015, pp. 21882–88, doi:10.1021/acs.jpcc.5b06199."},"title":"Cu2ZnSnS4–PtM (M = Co, Ni) nanoheterostructures for photocatalytic hydrogen evolution","author":[{"first_name":"Xuelian","full_name":"Yu, Xuelian","last_name":"Yu"},{"full_name":"An, Xiaoqiang","last_name":"An","first_name":"Xiaoqiang"},{"last_name":"Genç","full_name":"Genç, Aziz","first_name":"Aziz"},{"first_name":"Maria","id":"43C61214-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0001-5013-2843","full_name":"Ibáñez, Maria","last_name":"Ibáñez"},{"last_name":"Arbiol","full_name":"Arbiol, Jordi","first_name":"Jordi"},{"first_name":"Yihe","last_name":"Zhang","full_name":"Zhang, Yihe"},{"last_name":"Cabot","full_name":"Cabot, Andreu","first_name":"Andreu"}],"publist_id":"7468","article_processing_charge":"No"},{"date_updated":"2023-02-23T11:46:04Z","department":[{"_id":"KrCh"},{"_id":"ToHe"}],"_id":"1856","status":"public","type":"journal_article","language":[{"iso":"eng"}],"publication_status":"published","ec_funded":1,"related_material":{"record":[{"status":"public","id":"3864","relation":"earlier_version"}]},"volume":62,"issue":"1","oa_version":"Preprint","abstract":[{"lang":"eng","text":"The traditional synthesis question given a specification asks for the automatic construction of a system that satisfies the specification, whereas often there exists a preference order among the different systems that satisfy the given specification. Under a probabilistic assumption about the possible inputs, such a preference order is naturally expressed by a weighted automaton, which assigns to each word a value, such that a system is preferred if it generates a higher expected value. We solve the following optimal synthesis problem: given an omega-regular specification, a Markov chain that describes the distribution of inputs, and a weighted automaton that measures how well a system satisfies the given specification under the input assumption, synthesize a system that optimizes the measured value. For safety specifications and quantitative measures that are defined by mean-payoff automata, the optimal synthesis problem reduces to finding a strategy in a Markov decision process (MDP) that is optimal for a long-run average reward objective, which can be achieved in polynomial time. For general omega-regular specifications along with mean-payoff automata, the solution rests on a new, polynomial-time algorithm for computing optimal strategies in MDPs with mean-payoff parity objectives. Our algorithm constructs optimal strategies that consist of two memoryless strategies and a counter. The counter is in general not bounded. To obtain a finite-state system, we show how to construct an ε-optimal strategy with a bounded counter, for all ε > 0. Furthermore, we show how to decide in polynomial time if it is possible to construct an optimal finite-state system (i.e., a system without a counter) for a given specification. We have implemented our approach and the underlying algorithms in a tool that takes qualitative and quantitative specifications and automatically constructs a system that satisfies the qualitative specification and optimizes the quantitative specification, if such a system exists. We present some experimental results showing optimal systems that were automatically generated in this way."}],"intvolume":" 62","month":"02","main_file_link":[{"open_access":"1","url":"https://arxiv.org/abs/1004.0739"}],"scopus_import":1,"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","citation":{"ieee":"K. Chatterjee, T. A. Henzinger, B. Jobstmann, and R. Singh, “Measuring and synthesizing systems in probabilistic environments,” Journal of the ACM, vol. 62, no. 1. ACM, 2015.","short":"K. Chatterjee, T.A. Henzinger, B. Jobstmann, R. Singh, Journal of the ACM 62 (2015).","apa":"Chatterjee, K., Henzinger, T. A., Jobstmann, B., & Singh, R. (2015). Measuring and synthesizing systems in probabilistic environments. Journal of the ACM. ACM. https://doi.org/10.1145/2699430","ama":"Chatterjee K, Henzinger TA, Jobstmann B, Singh R. Measuring and synthesizing systems in probabilistic environments. Journal of the ACM. 2015;62(1). doi:10.1145/2699430","mla":"Chatterjee, Krishnendu, et al. “Measuring and Synthesizing Systems in Probabilistic Environments.” Journal of the ACM, vol. 62, no. 1, 9, ACM, 2015, doi:10.1145/2699430.","ista":"Chatterjee K, Henzinger TA, Jobstmann B, Singh R. 2015. Measuring and synthesizing systems in probabilistic environments. Journal of the ACM. 62(1), 9.","chicago":"Chatterjee, Krishnendu, Thomas A Henzinger, Barbara Jobstmann, and Rohit Singh. “Measuring and Synthesizing Systems in Probabilistic Environments.” Journal of the ACM. ACM, 2015. https://doi.org/10.1145/2699430."},"title":"Measuring and synthesizing systems in probabilistic environments","author":[{"full_name":"Chatterjee, Krishnendu","orcid":"0000-0002-4561-241X","last_name":"Chatterjee","id":"2E5DCA20-F248-11E8-B48F-1D18A9856A87","first_name":"Krishnendu"},{"first_name":"Thomas A","id":"40876CD8-F248-11E8-B48F-1D18A9856A87","orcid":"0000−0002−2985−7724","full_name":"Henzinger, Thomas A","last_name":"Henzinger"},{"last_name":"Jobstmann","full_name":"Jobstmann, Barbara","first_name":"Barbara"},{"last_name":"Singh","full_name":"Singh, Rohit","first_name":"Rohit"}],"publist_id":"5244","article_number":"9","project":[{"call_identifier":"FP7","_id":"25EE3708-B435-11E9-9278-68D0E5697425","grant_number":"267989","name":"Quantitative Reactive Modeling"},{"_id":"25832EC2-B435-11E9-9278-68D0E5697425","call_identifier":"FWF","name":"Rigorous Systems Engineering","grant_number":"S 11407_N23"},{"call_identifier":"FWF","_id":"2584A770-B435-11E9-9278-68D0E5697425","grant_number":"P 23499-N23","name":"Modern Graph Algorithmic Techniques in Formal Verification"},{"call_identifier":"FWF","_id":"25863FF4-B435-11E9-9278-68D0E5697425","grant_number":"S11407","name":"Game Theory"},{"grant_number":"279307","name":"Quantitative Graph Games: Theory and Applications","_id":"2581B60A-B435-11E9-9278-68D0E5697425","call_identifier":"FP7"},{"_id":"2587B514-B435-11E9-9278-68D0E5697425","name":"Microsoft Research Faculty Fellowship"}],"publication":"Journal of the ACM","day":"01","year":"2015","date_created":"2018-12-11T11:54:23Z","doi":"10.1145/2699430","date_published":"2015-02-01T00:00:00Z","oa":1,"quality_controlled":"1","publisher":"ACM"},{"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","extern":"1","date_updated":"2021-01-12T07:52:54Z","citation":{"mla":"Alpichshev, Zhanybek, et al. “Confinement Deconfinement Transition as an Indication of Spin Liquid Type Behavior in Na2IrO3.” Physical Review Letters, vol. 114, no. 1, American Physical Society, 2015, doi:10.1103/PhysRevLett.114.017203.","apa":"Alpichshev, Z., Mahmood, F., Cao, G., & Gedik, N. (2015). Confinement deconfinement transition as an indication of spin liquid type behavior in Na2IrO3. Physical Review Letters. American Physical Society. https://doi.org/10.1103/PhysRevLett.114.017203","ama":"Alpichshev Z, Mahmood F, Cao G, Gedik N. Confinement deconfinement transition as an indication of spin liquid type behavior in Na2IrO3. Physical Review Letters. 2015;114(1). doi:10.1103/PhysRevLett.114.017203","short":"Z. Alpichshev, F. Mahmood, G. Cao, N. Gedik, Physical Review Letters 114 (2015).","ieee":"Z. Alpichshev, F. Mahmood, G. Cao, and N. Gedik, “Confinement deconfinement transition as an indication of spin liquid type behavior in Na2IrO3,” Physical Review Letters, vol. 114, no. 1. American Physical Society, 2015.","chicago":"Alpichshev, Zhanybek, Fahad Mahmood, Gang Cao, and Nuh Gedik. “Confinement Deconfinement Transition as an Indication of Spin Liquid Type Behavior in Na2IrO3.” Physical Review Letters. American Physical Society, 2015. https://doi.org/10.1103/PhysRevLett.114.017203.","ista":"Alpichshev Z, Mahmood F, Cao G, Gedik N. 2015. Confinement deconfinement transition as an indication of spin liquid type behavior in Na2IrO3. Physical Review Letters. 114(1)."},"title":"Confinement deconfinement transition as an indication of spin liquid type behavior in Na2IrO3","article_processing_charge":"No","author":[{"first_name":"Zhanybek","id":"45E67A2A-F248-11E8-B48F-1D18A9856A87","last_name":"Alpichshev","full_name":"Alpichshev, Zhanybek","orcid":"0000-0002-7183-5203"},{"first_name":"Fahad","last_name":"Mahmood","full_name":"Mahmood, Fahad"},{"full_name":"Cao, Gang","last_name":"Cao","first_name":"Gang"},{"last_name":"Gedik","full_name":"Gedik, Nuh","first_name":"Nuh"}],"publist_id":"7441","_id":"388","status":"public","type":"journal_article","article_type":"original","language":[{"iso":"eng"}],"publication":"Physical Review Letters","day":"07","publication_status":"published","year":"2015","date_created":"2018-12-11T11:46:11Z","date_published":"2015-07-07T00:00:00Z","volume":114,"issue":"1","doi":"10.1103/PhysRevLett.114.017203","oa_version":"Published Version","abstract":[{"text":"We use ultrafast optical spectroscopy to observe binding of charged single-particle excitations (SE) in the magnetically frustrated Mott insulator Na2IrO3. Above the antiferromagnetic ordering temperature (TN) the system response is due to both Hubbard excitons (HE) and their constituent unpaired SE. The SE response becomes strongly suppressed immediately below TN. We argue that this increase in binding energy is due to a unique interplay between the frustrated Kitaev and the weak Heisenberg-type ordering term in the Hamiltonian, mediating an effective interaction between the spin-singlet SE. This interaction grows with distance causing the SE to become trapped in the HE, similar to quark confinement inside hadrons. This binding of charged particles, induced by magnetic ordering, is a result of a confinement-deconfinement transition of spin excitations. This observation provides evidence for spin liquid type behavior which is expected in Na2IrO3.","lang":"eng"}],"intvolume":" 114","month":"07","oa":1,"main_file_link":[{"url":"https://dspace.mit.edu/handle/1721.1/92979","open_access":"1"}],"quality_controlled":"1","publisher":"American Physical Society"},{"article_processing_charge":"No","author":[{"full_name":"Chatterjee, Krishnendu","orcid":"0000-0002-4561-241X","last_name":"Chatterjee","id":"2E5DCA20-F248-11E8-B48F-1D18A9856A87","first_name":"Krishnendu"},{"orcid":"0000-0002-5008-6530","full_name":"Henzinger, Monika H","last_name":"Henzinger","first_name":"Monika H","id":"540c9bbd-f2de-11ec-812d-d04a5be85630"},{"first_name":"Veronika","last_name":"Loitzenbauer","full_name":"Loitzenbauer, Veronika"}],"publist_id":"5489","title":"Improved algorithms for one-pair and k-pair Streett objectives","citation":{"chicago":"Chatterjee, Krishnendu, Monika H Henzinger, and Veronika Loitzenbauer. “Improved Algorithms for One-Pair and k-Pair Streett Objectives.” In Proceedings - Symposium on Logic in Computer Science, Vol. 2015–July. IEEE, 2015. https://doi.org/10.1109/LICS.2015.34.","ista":"Chatterjee K, Henzinger MH, Loitzenbauer V. 2015. Improved algorithms for one-pair and k-pair Streett objectives. Proceedings - Symposium on Logic in Computer Science. LICS: Logic in Computer Science vol. 2015–July, 7174888.","mla":"Chatterjee, Krishnendu, et al. “Improved Algorithms for One-Pair and k-Pair Streett Objectives.” Proceedings - Symposium on Logic in Computer Science, vol. 2015–July, 7174888, IEEE, 2015, doi:10.1109/LICS.2015.34.","short":"K. Chatterjee, M.H. Henzinger, V. Loitzenbauer, in:, Proceedings - Symposium on Logic in Computer Science, IEEE, 2015.","ieee":"K. Chatterjee, M. H. Henzinger, and V. Loitzenbauer, “Improved algorithms for one-pair and k-pair Streett objectives,” in Proceedings - Symposium on Logic in Computer Science, Kyoto, Japan, 2015, vol. 2015–July.","ama":"Chatterjee K, Henzinger MH, Loitzenbauer V. Improved algorithms for one-pair and k-pair Streett objectives. In: Proceedings - Symposium on Logic in Computer Science. Vol 2015-July. IEEE; 2015. doi:10.1109/LICS.2015.34","apa":"Chatterjee, K., Henzinger, M. H., & Loitzenbauer, V. (2015). Improved algorithms for one-pair and k-pair Streett objectives. In Proceedings - Symposium on Logic in Computer Science (Vol. 2015–July). Kyoto, Japan: IEEE. https://doi.org/10.1109/LICS.2015.34"},"user_id":"6785fbc1-c503-11eb-8a32-93094b40e1cf","project":[{"call_identifier":"FWF","_id":"2584A770-B435-11E9-9278-68D0E5697425","grant_number":"P 23499-N23","name":"Modern Graph Algorithmic Techniques in Formal Verification"},{"grant_number":"S 11407_N23","name":"Rigorous Systems Engineering","call_identifier":"FWF","_id":"25832EC2-B435-11E9-9278-68D0E5697425"},{"call_identifier":"FP7","_id":"2581B60A-B435-11E9-9278-68D0E5697425","grant_number":"279307","name":"Quantitative Graph Games: Theory and Applications"}],"article_number":"7174888","date_created":"2018-12-11T11:53:19Z","doi":"10.1109/LICS.2015.34","date_published":"2015-07-01T00:00:00Z","year":"2015","publication":"Proceedings - Symposium on Logic in Computer Science","day":"01","oa":1,"quality_controlled":"1","publisher":"IEEE","acknowledgement":"K. C. is supported by the Austrian Science Fund (FWF): P23499-N23 and S11407-N23 (RiSE), an ERC Start Grant (279307: Graph Games), and a Microsoft Faculty Fellows Award. M. H. is supported by the Austrian Science Fund (FWF): P23499-N23 and the Vienna Science and Technology Fund (WWTF) grant ICT10-002. V. L. is supported by the Vienna Science and Technology Fund (WWTF) grant ICT10-002. The research leading to these results has received funding from the European Research Council under the European Union’s Seventh Framework Programme (FP/2007-2013) / ERC Grant Agreement no. 340506.","department":[{"_id":"KrCh"}],"date_updated":"2023-02-23T12:20:05Z","conference":{"name":"LICS: Logic in Computer Science","start_date":"2015-07-06","location":"Kyoto, Japan","end_date":"2015-07-10"},"type":"conference","status":"public","_id":"1661","ec_funded":1,"volume":"2015-July","related_material":{"record":[{"relation":"later_version","status":"public","id":"464"}]},"publication_status":"published","language":[{"iso":"eng"}],"main_file_link":[{"url":"https://eprints.cs.univie.ac.at/4368/","open_access":"1"}],"scopus_import":"1","month":"07","abstract":[{"text":"The computation of the winning set for one-pair Streett objectives and for k-pair Streett objectives in (standard) graphs as well as in game graphs are central problems in computer-aided verification, with application to the verification of closed systems with strong fairness conditions, the verification of open systems, checking interface compatibility, well-formed ness of specifications, and the synthesis of reactive systems. We give faster algorithms for the computation of the winning set for (1) one-pair Streett objectives (aka parity-3 problem) in game graphs and (2) for k-pair Streett objectives in graphs. For both problems this represents the first improvement in asymptotic running time in 15 years.","lang":"eng"}],"oa_version":"Submitted Version"},{"file_date_updated":"2020-07-14T12:46:35Z","department":[{"_id":"RoSe"}],"ddc":["539"],"date_updated":"2021-01-12T08:00:52Z","pubrep_id":"951","status":"public","tmp":{"legal_code_url":"https://creativecommons.org/licenses/by-nd/4.0/legalcode","image":"/image/cc_by_nd.png","name":"Creative Commons Attribution-NoDerivatives 4.0 International (CC BY-ND 4.0)","short":"CC BY-ND (4.0)"},"type":"journal_article","_id":"473","ec_funded":1,"license":"https://creativecommons.org/licenses/by-nd/4.0/","volume":2,"language":[{"iso":"eng"}],"file":[{"content_type":"application/pdf","relation":"main_file","access_level":"open_access","checksum":"a40eb4016717ddc9927154798a4c164a","file_id":"4974","file_size":1084254,"date_updated":"2020-07-14T12:46:35Z","creator":"system","file_name":"IST-2018-951-v1+1_2015_Thanh-Nam_Derivation_of.pdf","date_created":"2018-12-12T10:12:53Z"}],"publication_status":"published","intvolume":" 2","month":"01","scopus_import":1,"oa_version":"Published Version","abstract":[{"lang":"eng","text":"We prove that nonlinear Gibbs measures can be obtained from the corresponding many-body, grand-canonical, quantum Gibbs states, in a mean-field limit where the temperature T diverges and the interaction strength behaves as 1/T. We proceed by characterizing the interacting Gibbs state as minimizing a functional counting the free-energy relatively to the non-interacting case. We then perform an infinite-dimensional analogue of phase-space semiclassical analysis, using fine properties of the quantum relative entropy, the link between quantum de Finetti measures and upper/lower symbols in a coherent state basis, as well as Berezin-Lieb type inequalities. Our results cover the measure built on the defocusing nonlinear Schrödinger functional on a finite interval, as well as smoother interactions in dimensions d 2."}],"title":"Derivation of nonlinear gibbs measures from many-body quantum mechanics","publist_id":"7344","author":[{"first_name":"Mathieu","full_name":"Lewin, Mathieu","last_name":"Lewin"},{"full_name":"Phan Thanh, Nam","last_name":"Phan Thanh","first_name":"Nam","id":"404092F4-F248-11E8-B48F-1D18A9856A87"},{"first_name":"Nicolas","full_name":"Rougerie, Nicolas","last_name":"Rougerie"}],"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","citation":{"chicago":"Lewin, Mathieu, Phan Nam, and Nicolas Rougerie. “Derivation of Nonlinear Gibbs Measures from Many-Body Quantum Mechanics.” Journal de l’Ecole Polytechnique - Mathematiques. Ecole Polytechnique, 2015. https://doi.org/10.5802/jep.18.","ista":"Lewin M, Nam P, Rougerie N. 2015. Derivation of nonlinear gibbs measures from many-body quantum mechanics. Journal de l’Ecole Polytechnique - Mathematiques. 2, 65–115.","mla":"Lewin, Mathieu, et al. “Derivation of Nonlinear Gibbs Measures from Many-Body Quantum Mechanics.” Journal de l’Ecole Polytechnique - Mathematiques, vol. 2, Ecole Polytechnique, 2015, pp. 65–115, doi:10.5802/jep.18.","ieee":"M. Lewin, P. Nam, and N. Rougerie, “Derivation of nonlinear gibbs measures from many-body quantum mechanics,” Journal de l’Ecole Polytechnique - Mathematiques, vol. 2. Ecole Polytechnique, pp. 65–115, 2015.","short":"M. Lewin, P. Nam, N. Rougerie, Journal de l’Ecole Polytechnique - Mathematiques 2 (2015) 65–115.","apa":"Lewin, M., Nam, P., & Rougerie, N. (2015). Derivation of nonlinear gibbs measures from many-body quantum mechanics. Journal de l’Ecole Polytechnique - Mathematiques. Ecole Polytechnique. https://doi.org/10.5802/jep.18","ama":"Lewin M, Nam P, Rougerie N. Derivation of nonlinear gibbs measures from many-body quantum mechanics. Journal de l’Ecole Polytechnique - Mathematiques. 2015;2:65-115. doi:10.5802/jep.18"},"project":[{"_id":"25681D80-B435-11E9-9278-68D0E5697425","call_identifier":"FP7","name":"International IST Postdoc Fellowship Programme","grant_number":"291734"}],"date_created":"2018-12-11T11:46:40Z","doi":"10.5802/jep.18","date_published":"2015-01-01T00:00:00Z","page":"65 - 115","publication":"Journal de l'Ecole Polytechnique - Mathematiques","day":"01","year":"2015","has_accepted_license":"1","oa":1,"quality_controlled":"1","publisher":"Ecole Polytechnique"},{"title":"The serotonin receptor 5-HT7R regulates the morphology and migratory properties of dendritic cells","department":[{"_id":"MiSi"}],"publist_id":"7343","author":[{"first_name":"Katrin","full_name":"Holst, Katrin","last_name":"Holst"},{"full_name":"Guseva, Daria","last_name":"Guseva","first_name":"Daria"},{"first_name":"Susann","full_name":"Schindler, Susann","last_name":"Schindler"},{"first_name":"Michael K","id":"41E9FBEA-F248-11E8-B48F-1D18A9856A87","last_name":"Sixt","full_name":"Sixt, Michael K","orcid":"0000-0002-6620-9179"},{"full_name":"Braun, Armin","last_name":"Braun","first_name":"Armin"},{"first_name":"Himpriya","last_name":"Chopra","full_name":"Chopra, Himpriya"},{"first_name":"Oliver","last_name":"Pabst","full_name":"Pabst, Oliver"},{"first_name":"Evgeni","last_name":"Ponimaskin","full_name":"Ponimaskin, Evgeni"}],"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","date_updated":"2021-01-12T08:00:54Z","citation":{"apa":"Holst, K., Guseva, D., Schindler, S., Sixt, M. K., Braun, A., Chopra, H., … Ponimaskin, E. (2015). The serotonin receptor 5-HT7R regulates the morphology and migratory properties of dendritic cells. Journal of Cell Science. Company of Biologists. https://doi.org/10.1242/jcs.167999","ama":"Holst K, Guseva D, Schindler S, et al. The serotonin receptor 5-HT7R regulates the morphology and migratory properties of dendritic cells. Journal of Cell Science. 2015;128(15):2866-2880. doi:10.1242/jcs.167999","ieee":"K. Holst et al., “The serotonin receptor 5-HT7R regulates the morphology and migratory properties of dendritic cells,” Journal of Cell Science, vol. 128, no. 15. Company of Biologists, pp. 2866–2880, 2015.","short":"K. Holst, D. Guseva, S. Schindler, M.K. Sixt, A. Braun, H. Chopra, O. Pabst, E. Ponimaskin, Journal of Cell Science 128 (2015) 2866–2880.","mla":"Holst, Katrin, et al. “The Serotonin Receptor 5-HT7R Regulates the Morphology and Migratory Properties of Dendritic Cells.” Journal of Cell Science, vol. 128, no. 15, Company of Biologists, 2015, pp. 2866–80, doi:10.1242/jcs.167999.","ista":"Holst K, Guseva D, Schindler S, Sixt MK, Braun A, Chopra H, Pabst O, Ponimaskin E. 2015. The serotonin receptor 5-HT7R regulates the morphology and migratory properties of dendritic cells. Journal of Cell Science. 128(15), 2866–2880.","chicago":"Holst, Katrin, Daria Guseva, Susann Schindler, Michael K Sixt, Armin Braun, Himpriya Chopra, Oliver Pabst, and Evgeni Ponimaskin. “The Serotonin Receptor 5-HT7R Regulates the Morphology and Migratory Properties of Dendritic Cells.” Journal of Cell Science. Company of Biologists, 2015. https://doi.org/10.1242/jcs.167999."},"status":"public","type":"journal_article","_id":"477","date_created":"2018-12-11T11:46:41Z","date_published":"2015-06-15T00:00:00Z","volume":128,"issue":"15","doi":"10.1242/jcs.167999","page":"2866 - 2880","publication":"Journal of Cell Science","language":[{"iso":"eng"}],"day":"15","publication_status":"published","year":"2015","intvolume":" 128","month":"06","quality_controlled":"1","scopus_import":1,"publisher":"Company of Biologists","oa_version":"None","abstract":[{"lang":"eng","text":"Dendritic cells are potent antigen-presenting cells endowed with the unique ability to initiate adaptive immune responses upon inflammation. Inflammatory processes are often associated with an increased production of serotonin, which operates by activating specific receptors. However, the functional role of serotonin receptors in regulation of dendritic cell functions is poorly understood. Here, we demonstrate that expression of serotonin receptor 5-HT7 (5-HT7TR) as well as its downstream effector Cdc42 is upregulated in dendritic cells upon maturation. Although dendritic cell maturation was independent of 5-HT7TR, receptor stimulation affected dendritic cell morphology through Cdc42-mediated signaling. In addition, basal activity of 5-HT7TR was required for the proper expression of the chemokine receptor CCR7, which is a key factor that controls dendritic cell migration. Consistent with this, we observed that 5-HT7TR enhances chemotactic motility of dendritic cells in vitro by modulating their directionality and migration velocity. Accordingly, migration of dendritic cells in murine colon explants was abolished after pharmacological receptor inhibition. Our results indicate that there is a crucial role for 5-HT7TR-Cdc42-mediated signaling in the regulation of dendritic cell morphology and motility, suggesting that 5-HT7TR could be a new target for treatment of a variety of inflammatory and immune disorders."}]},{"publist_id":"7296","author":[{"first_name":"Krishnendu","id":"2E5DCA20-F248-11E8-B48F-1D18A9856A87","last_name":"Chatterjee","full_name":"Chatterjee, Krishnendu","orcid":"0000-0002-4561-241X"},{"first_name":"Laurent","full_name":"Doyen, Laurent","last_name":"Doyen"},{"full_name":"Randour, Mickael","last_name":"Randour","first_name":"Mickael"},{"first_name":"Jean","full_name":"Raskin, Jean","last_name":"Raskin"}],"title":"Looking at mean-payoff and total-payoff through windows","citation":{"chicago":"Chatterjee, Krishnendu, Laurent Doyen, Mickael Randour, and Jean Raskin. “Looking at Mean-Payoff and Total-Payoff through Windows.” Information and Computation. Elsevier, 2015. https://doi.org/10.1016/j.ic.2015.03.010.","ista":"Chatterjee K, Doyen L, Randour M, Raskin J. 2015. Looking at mean-payoff and total-payoff through windows. Information and Computation. 242(6), 25–52.","mla":"Chatterjee, Krishnendu, et al. “Looking at Mean-Payoff and Total-Payoff through Windows.” Information and Computation, vol. 242, no. 6, Elsevier, 2015, pp. 25–52, doi:10.1016/j.ic.2015.03.010.","apa":"Chatterjee, K., Doyen, L., Randour, M., & Raskin, J. (2015). Looking at mean-payoff and total-payoff through windows. Information and Computation. Elsevier. https://doi.org/10.1016/j.ic.2015.03.010","ama":"Chatterjee K, Doyen L, Randour M, Raskin J. Looking at mean-payoff and total-payoff through windows. Information and Computation. 2015;242(6):25-52. doi:10.1016/j.ic.2015.03.010","short":"K. Chatterjee, L. Doyen, M. Randour, J. Raskin, Information and Computation 242 (2015) 25–52.","ieee":"K. Chatterjee, L. Doyen, M. Randour, and J. Raskin, “Looking at mean-payoff and total-payoff through windows,” Information and Computation, vol. 242, no. 6. Elsevier, pp. 25–52, 2015."},"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","project":[{"call_identifier":"FWF","_id":"2584A770-B435-11E9-9278-68D0E5697425","name":"Modern Graph Algorithmic Techniques in Formal Verification","grant_number":"P 23499-N23"},{"name":"Game Theory","grant_number":"S11407","_id":"25863FF4-B435-11E9-9278-68D0E5697425","call_identifier":"FWF"},{"call_identifier":"FP7","_id":"2581B60A-B435-11E9-9278-68D0E5697425","name":"Quantitative Graph Games: Theory and Applications","grant_number":"279307"},{"_id":"2587B514-B435-11E9-9278-68D0E5697425","name":"Microsoft Research Faculty Fellowship"}],"page":"25 - 52","doi":"10.1016/j.ic.2015.03.010","date_published":"2015-03-24T00:00:00Z","date_created":"2018-12-11T11:46:57Z","year":"2015","day":"24","publication":"Information and Computation","publisher":"Elsevier","quality_controlled":"1","oa":1,"department":[{"_id":"KrCh"}],"date_updated":"2023-02-23T10:36:02Z","type":"journal_article","status":"public","_id":"523","issue":"6","related_material":{"record":[{"id":"2279","status":"public","relation":"earlier_version"}]},"volume":242,"ec_funded":1,"publication_status":"published","language":[{"iso":"eng"}],"scopus_import":1,"main_file_link":[{"open_access":"1","url":"https://arxiv.org/abs/1302.4248"}],"month":"03","intvolume":" 242","abstract":[{"text":"We consider two-player games played on weighted directed graphs with mean-payoff and total-payoff objectives, two classical quantitative objectives. While for single-dimensional games the complexity and memory bounds for both objectives coincide, we show that in contrast to multi-dimensional mean-payoff games that are known to be coNP-complete, multi-dimensional total-payoff games are undecidable. We introduce conservative approximations of these objectives, where the payoff is considered over a local finite window sliding along a play, instead of the whole play. For single dimension, we show that (i) if the window size is polynomial, deciding the winner takes polynomial time, and (ii) the existence of a bounded window can be decided in NP ∩ coNP, and is at least as hard as solving mean-payoff games. For multiple dimensions, we show that (i) the problem with fixed window size is EXPTIME-complete, and (ii) there is no primitive-recursive algorithm to decide the existence of a bounded window.","lang":"eng"}],"oa_version":"Preprint"},{"year":"2015","publication_status":"published","publication":"Cell","language":[{"iso":"eng"}],"day":"22","page":"670 - 683","date_created":"2018-12-11T11:47:00Z","date_published":"2015-10-22T00:00:00Z","issue":"3","doi":"10.1016/j.cell.2015.09.037","volume":163,"abstract":[{"text":"Ethylene is a gaseous phytohormone that plays vital roles in plant growth and development. Previous studies uncovered EIN2 as an essential signal transducer linking ethylene perception on ER to transcriptional regulation in the nucleus through a “cleave and shuttle” model. In this study, we report another mechanism of EIN2-mediated ethylene signaling, whereby EIN2 imposes the translational repression of EBF1 and EBF2 mRNA. We find that the EBF1/2 3′ UTRs mediate EIN2-directed translational repression and identify multiple poly-uridylates (PolyU) motifs as functional cis elements of 3′ UTRs. Furthermore, we demonstrate that ethylene induces EIN2 to associate with 3′ UTRs and target EBF1/2 mRNA to cytoplasmic processing-body (P-body) through interacting with multiple P-body factors, including EIN5 and PABs. Our study illustrates translational regulation as a key step in ethylene signaling and presents mRNA 3′ UTR functioning as a “signal transducer” to sense and relay cellular signaling in plants.","lang":"eng"}],"oa_version":"None","publisher":"Cell Press","quality_controlled":"1","scopus_import":1,"intvolume":" 163","month":"10","date_updated":"2021-01-12T08:01:27Z","citation":{"mla":"Li, Wenyang, et al. “EIN2-Directed Translational Regulation of Ethylene Signaling in Arabidopsis.” Cell, vol. 163, no. 3, Cell Press, 2015, pp. 670–83, doi:10.1016/j.cell.2015.09.037.","ieee":"W. Li et al., “EIN2-directed translational regulation of ethylene signaling in arabidopsis,” Cell, vol. 163, no. 3. Cell Press, pp. 670–683, 2015.","short":"W. Li, M. Ma, Y. Feng, H. Li, Y. Wang, Y. Ma, M. Li, F. An, H. Guo, Cell 163 (2015) 670–683.","ama":"Li W, Ma M, Feng Y, et al. EIN2-directed translational regulation of ethylene signaling in arabidopsis. Cell. 2015;163(3):670-683. doi:10.1016/j.cell.2015.09.037","apa":"Li, W., Ma, M., Feng, Y., Li, H., Wang, Y., Ma, Y., … Guo, H. (2015). EIN2-directed translational regulation of ethylene signaling in arabidopsis. Cell. Cell Press. https://doi.org/10.1016/j.cell.2015.09.037","chicago":"Li, Wenyang, Mengdi Ma, Ying Feng, Hongjiang Li, Yichuan Wang, Yutong Ma, Mingzhe Li, Fengying An, and Hongwei Guo. “EIN2-Directed Translational Regulation of Ethylene Signaling in Arabidopsis.” Cell. Cell Press, 2015. https://doi.org/10.1016/j.cell.2015.09.037.","ista":"Li W, Ma M, Feng Y, Li H, Wang Y, Ma Y, Li M, An F, Guo H. 2015. EIN2-directed translational regulation of ethylene signaling in arabidopsis. Cell. 163(3), 670–683."},"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","publist_id":"7285","author":[{"full_name":"Li, Wenyang","last_name":"Li","first_name":"Wenyang"},{"first_name":"Mengdi","last_name":"Ma","full_name":"Ma, Mengdi"},{"first_name":"Ying","full_name":"Feng, Ying","last_name":"Feng"},{"last_name":"Li","full_name":"Li, Hongjiang","orcid":"0000-0001-5039-9660","id":"33CA54A6-F248-11E8-B48F-1D18A9856A87","first_name":"Hongjiang"},{"full_name":"Wang, Yichuan","last_name":"Wang","first_name":"Yichuan"},{"first_name":"Yutong","last_name":"Ma","full_name":"Ma, Yutong"},{"last_name":"Li","full_name":"Li, Mingzhe","first_name":"Mingzhe"},{"first_name":"Fengying","full_name":"An, Fengying","last_name":"An"},{"full_name":"Guo, Hongwei","last_name":"Guo","first_name":"Hongwei"}],"title":"EIN2-directed translational regulation of ethylene signaling in arabidopsis","department":[{"_id":"JiFr"}],"_id":"532","type":"journal_article","status":"public"},{"language":[{"iso":"eng"}],"publication_status":"published","related_material":{"record":[{"relation":"earlier_version","status":"public","id":"5403"}]},"volume":242,"issue":"6","oa_version":"Preprint","abstract":[{"text":"We consider concurrent games played by two players on a finite-state graph, where in every round the players simultaneously choose a move, and the current state along with the joint moves determine the successor state. We study the most fundamental objective for concurrent games, namely, mean-payoff or limit-average objective, where a reward is associated to each transition, and the goal of player 1 is to maximize the long-run average of the rewards, and the objective of player 2 is strictly the opposite (i.e., the games are zero-sum). The path constraint for player 1 could be qualitative, i.e., the mean-payoff is the maximal reward, or arbitrarily close to it; or quantitative, i.e., a given threshold between the minimal and maximal reward. We consider the computation of the almost-sure (resp. positive) winning sets, where player 1 can ensure that the path constraint is satisfied with probability 1 (resp. positive probability). Almost-sure winning with qualitative constraint exactly corresponds to the question of whether there exists a strategy to ensure that the payoff is the maximal reward of the game. Our main results for qualitative path constraints are as follows: (1) we establish qualitative determinacy results that show that for every state either player 1 has a strategy to ensure almost-sure (resp. positive) winning against all player-2 strategies, or player 2 has a spoiling strategy to falsify almost-sure (resp. positive) winning against all player-1 strategies; (2) we present optimal strategy complexity results that precisely characterize the classes of strategies required for almost-sure and positive winning for both players; and (3) we present quadratic time algorithms to compute the almost-sure and the positive winning sets, matching the best known bound of the algorithms for much simpler problems (such as reachability objectives). For quantitative constraints we show that a polynomial time solution for the almost-sure or the positive winning set would imply a solution to a long-standing open problem (of solving the value problem of turn-based deterministic mean-payoff games) that is not known to be solvable in polynomial time.","lang":"eng"}],"intvolume":" 242","month":"10","main_file_link":[{"open_access":"1","url":"https://arxiv.org/abs/1409.5306"}],"scopus_import":1,"date_updated":"2023-02-23T12:24:45Z","department":[{"_id":"KrCh"}],"_id":"524","status":"public","type":"journal_article","publication":"Information and Computation","day":"11","year":"2015","date_created":"2018-12-11T11:46:57Z","doi":"10.1016/j.ic.2015.03.009","date_published":"2015-10-11T00:00:00Z","page":"2 - 24","oa":1,"publisher":"Elsevier","quality_controlled":"1","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","citation":{"chicago":"Chatterjee, Krishnendu, and Rasmus Ibsen-Jensen. “Qualitative Analysis of Concurrent Mean Payoff Games.” Information and Computation. Elsevier, 2015. https://doi.org/10.1016/j.ic.2015.03.009.","ista":"Chatterjee K, Ibsen-Jensen R. 2015. Qualitative analysis of concurrent mean payoff games. Information and Computation. 242(6), 2–24.","mla":"Chatterjee, Krishnendu, and Rasmus Ibsen-Jensen. “Qualitative Analysis of Concurrent Mean Payoff Games.” Information and Computation, vol. 242, no. 6, Elsevier, 2015, pp. 2–24, doi:10.1016/j.ic.2015.03.009.","ama":"Chatterjee K, Ibsen-Jensen R. Qualitative analysis of concurrent mean payoff games. Information and Computation. 2015;242(6):2-24. doi:10.1016/j.ic.2015.03.009","apa":"Chatterjee, K., & Ibsen-Jensen, R. (2015). Qualitative analysis of concurrent mean payoff games. Information and Computation. Elsevier. https://doi.org/10.1016/j.ic.2015.03.009","ieee":"K. Chatterjee and R. Ibsen-Jensen, “Qualitative analysis of concurrent mean payoff games,” Information and Computation, vol. 242, no. 6. Elsevier, pp. 2–24, 2015.","short":"K. Chatterjee, R. Ibsen-Jensen, Information and Computation 242 (2015) 2–24."},"title":"Qualitative analysis of concurrent mean payoff games","external_id":{"arxiv":["1409.5306"]},"author":[{"id":"2E5DCA20-F248-11E8-B48F-1D18A9856A87","first_name":"Krishnendu","full_name":"Chatterjee, Krishnendu","orcid":"0000-0002-4561-241X","last_name":"Chatterjee"},{"id":"3B699956-F248-11E8-B48F-1D18A9856A87","first_name":"Rasmus","full_name":"Ibsen-Jensen, Rasmus","orcid":"0000-0003-4783-0389","last_name":"Ibsen-Jensen"}],"publist_id":"7295"},{"title":"Automatic generation of alternative starting positions for simple traditional board games","publist_id":"5713","author":[{"last_name":"Ahmed","full_name":"Ahmed, Umair","first_name":"Umair"},{"id":"2E5DCA20-F248-11E8-B48F-1D18A9856A87","first_name":"Krishnendu","full_name":"Chatterjee, Krishnendu","orcid":"0000-0002-4561-241X","last_name":"Chatterjee"},{"first_name":"Sumit","full_name":"Gulwani, Sumit","last_name":"Gulwani"}],"article_processing_charge":"No","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","citation":{"chicago":"Ahmed, Umair, Krishnendu Chatterjee, and Sumit Gulwani. “Automatic Generation of Alternative Starting Positions for Simple Traditional Board Games.” In Proceedings of the Twenty-Ninth AAAI Conference on Artificial Intelligence, 2:745–52. AAAI Press, 2015.","ista":"Ahmed U, Chatterjee K, Gulwani S. 2015. Automatic generation of alternative starting positions for simple traditional board games. Proceedings of the Twenty-Ninth AAAI Conference on Artificial Intelligence. AAAI: Conference on Artificial Intelligence vol. 2, 745–752.","mla":"Ahmed, Umair, et al. “Automatic Generation of Alternative Starting Positions for Simple Traditional Board Games.” Proceedings of the Twenty-Ninth AAAI Conference on Artificial Intelligence, vol. 2, AAAI Press, 2015, pp. 745–52.","short":"U. Ahmed, K. Chatterjee, S. Gulwani, in:, Proceedings of the Twenty-Ninth AAAI Conference on Artificial Intelligence, AAAI Press, 2015, pp. 745–752.","ieee":"U. Ahmed, K. Chatterjee, and S. Gulwani, “Automatic generation of alternative starting positions for simple traditional board games,” in Proceedings of the Twenty-Ninth AAAI Conference on Artificial Intelligence, Austin, TX, USA, 2015, vol. 2, pp. 745–752.","apa":"Ahmed, U., Chatterjee, K., & Gulwani, S. (2015). Automatic generation of alternative starting positions for simple traditional board games. In Proceedings of the Twenty-Ninth AAAI Conference on Artificial Intelligence (Vol. 2, pp. 745–752). Austin, TX, USA: AAAI Press.","ama":"Ahmed U, Chatterjee K, Gulwani S. Automatic generation of alternative starting positions for simple traditional board games. In: Proceedings of the Twenty-Ninth AAAI Conference on Artificial Intelligence. Vol 2. AAAI Press; 2015:745-752."},"project":[{"call_identifier":"FWF","_id":"2584A770-B435-11E9-9278-68D0E5697425","name":"Modern Graph Algorithmic Techniques in Formal Verification","grant_number":"P 23499-N23"},{"call_identifier":"FWF","_id":"25832EC2-B435-11E9-9278-68D0E5697425","name":"Rigorous Systems Engineering","grant_number":"S 11407_N23"},{"grant_number":"279307","name":"Quantitative Graph Games: Theory and Applications","_id":"2581B60A-B435-11E9-9278-68D0E5697425","call_identifier":"FP7"},{"name":"Microsoft Research Faculty Fellowship","_id":"2587B514-B435-11E9-9278-68D0E5697425"}],"date_published":"2015-01-01T00:00:00Z","date_created":"2018-12-11T11:52:16Z","page":"745 - 752","day":"01","publication":"Proceedings of the Twenty-Ninth AAAI Conference on Artificial Intelligence","year":"2015","publisher":"AAAI Press","quality_controlled":"1","oa":1,"acknowledgement":"A Technical Report of this paper is available at: \r\nhttps://repository.ist.ac.at/id/eprint/146.\r\n","department":[{"_id":"KrCh"}],"date_updated":"2023-02-23T12:25:07Z","status":"public","type":"conference","conference":{"start_date":"2015-01-25","end_date":"2015-01-30","location":"Austin, TX, USA","name":"AAAI: Conference on Artificial Intelligence"},"_id":"1481","volume":2,"related_material":{"record":[{"id":"5410","status":"public","relation":"earlier_version"}]},"ec_funded":1,"language":[{"iso":"eng"}],"publication_status":"published","month":"01","intvolume":" 2","scopus_import":1,"main_file_link":[{"url":"https://www.aaai.org/ocs/index.php/AAAI/AAAI15/paper/download/9523/9300","open_access":"1"}],"oa_version":"None","abstract":[{"lang":"eng","text":"Simple board games, like Tic-Tac-Toe and CONNECT-4, play an important role not only in the development of mathematical and logical skills, but also in the emotional and social development. In this paper, we address the problem of generating targeted starting positions for such games. This can facilitate new approaches for bringing novice players to mastery, and also leads to discovery of interesting game variants. We present an approach that generates starting states of varying hardness levels for player 1 in a two-player board game, given rules of the board game, the desired number of steps required for player 1 to win, and the expertise levels of the two players. Our approach leverages symbolic methods and iterative simulation to efficiently search the extremely large state space. We present experimental results that include discovery of states of varying hardness levels for several simple grid-based board games. The presence of such states for standard game variants like 4×4 Tic-Tac-Toe opens up new games to be played that have never been played as the default start state is heavily biased. "}]},{"date_updated":"2023-02-23T12:25:52Z","department":[{"_id":"KrCh"}],"_id":"1732","status":"public","type":"conference","conference":{"end_date":"2015-05-30","location":"Seattle, WA, United States","start_date":"2015-05-26","name":"ICRA: International Conference on Robotics and Automation"},"language":[{"iso":"eng"}],"publication_status":"published","related_material":{"record":[{"status":"public","id":"5424","relation":"earlier_version"},{"id":"5426","status":"public","relation":"earlier_version"}]},"ec_funded":1,"oa_version":"Preprint","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"}],"month":"01","scopus_import":1,"main_file_link":[{"open_access":"1","url":"http://arxiv.org/abs/1409.3360"}],"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","citation":{"short":"K. Chatterjee, M. Chmelik, R. Gupta, A. Kanodia, in:, IEEE, 2015, pp. 325–330.","ieee":"K. Chatterjee, M. Chmelik, R. Gupta, and A. Kanodia, “Qualitative analysis of POMDPs with temporal logic specifications for robotics applications,” presented at the ICRA: International Conference on Robotics and Automation, Seattle, WA, United States, 2015, pp. 325–330.","apa":"Chatterjee, K., Chmelik, M., Gupta, R., & Kanodia, A. (2015). Qualitative analysis of POMDPs with temporal logic specifications for robotics applications (pp. 325–330). Presented at the ICRA: International Conference on Robotics and Automation, Seattle, WA, United States: IEEE. https://doi.org/10.1109/ICRA.2015.7139019","ama":"Chatterjee K, Chmelik M, Gupta R, Kanodia A. Qualitative analysis of POMDPs with temporal logic specifications for robotics applications. In: IEEE; 2015:325-330. doi:10.1109/ICRA.2015.7139019","mla":"Chatterjee, Krishnendu, et al. Qualitative Analysis of POMDPs with Temporal Logic Specifications for Robotics Applications. IEEE, 2015, pp. 325–30, doi:10.1109/ICRA.2015.7139019.","ista":"Chatterjee K, Chmelik M, Gupta R, Kanodia A. 2015. Qualitative analysis of POMDPs with temporal logic specifications for robotics applications. ICRA: International Conference on Robotics and Automation, 325–330.","chicago":"Chatterjee, Krishnendu, Martin Chmelik, Raghav Gupta, and Ayush Kanodia. “Qualitative Analysis of POMDPs with Temporal Logic Specifications for Robotics Applications,” 325–30. IEEE, 2015. https://doi.org/10.1109/ICRA.2015.7139019."},"title":"Qualitative analysis of POMDPs with temporal logic specifications for robotics applications","author":[{"first_name":"Krishnendu","id":"2E5DCA20-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0002-4561-241X","full_name":"Chatterjee, Krishnendu","last_name":"Chatterjee"},{"full_name":"Chmelik, Martin","last_name":"Chmelik","first_name":"Martin","id":"3624234E-F248-11E8-B48F-1D18A9856A87"},{"first_name":"Raghav","last_name":"Gupta","full_name":"Gupta, Raghav"},{"first_name":"Ayush","last_name":"Kanodia","full_name":"Kanodia, Ayush"}],"publist_id":"5394","external_id":{"arxiv":["1409.3360"]},"project":[{"_id":"2584A770-B435-11E9-9278-68D0E5697425","call_identifier":"FWF","name":"Modern Graph Algorithmic Techniques in Formal Verification","grant_number":"P 23499-N23"},{"_id":"25863FF4-B435-11E9-9278-68D0E5697425","call_identifier":"FWF","name":"Game Theory","grant_number":"S11407"},{"grant_number":"279307","name":"Quantitative Graph Games: Theory and Applications","_id":"2581B60A-B435-11E9-9278-68D0E5697425","call_identifier":"FP7"}],"day":"01","year":"2015","doi":"10.1109/ICRA.2015.7139019","date_published":"2015-01-01T00:00:00Z","date_created":"2018-12-11T11:53:43Z","page":"325 - 330","publisher":"IEEE","quality_controlled":"1","oa":1},{"department":[{"_id":"KrCh"}],"file_date_updated":"2020-07-14T12:46:53Z","title":"The patience of concurrent stochastic games with safety and reachability objectives","author":[{"first_name":"Krishnendu","id":"2E5DCA20-F248-11E8-B48F-1D18A9856A87","last_name":"Chatterjee","orcid":"0000-0002-4561-241X","full_name":"Chatterjee, Krishnendu"},{"last_name":"Ibsen-Jensen","orcid":"0000-0003-4783-0389","full_name":"Ibsen-Jensen, Rasmus","id":"3B699956-F248-11E8-B48F-1D18A9856A87","first_name":"Rasmus"},{"first_name":"Kristoffer","full_name":"Hansen, Kristoffer","last_name":"Hansen"}],"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","ddc":["005","519"],"date_updated":"2021-01-12T08:02:13Z","citation":{"ista":"Chatterjee K, Ibsen-Jensen R, Hansen K. 2015. The patience of concurrent stochastic games with safety and reachability objectives, IST Austria, 25p.","chicago":"Chatterjee, Krishnendu, Rasmus Ibsen-Jensen, and Kristoffer Hansen. The Patience of Concurrent Stochastic Games with Safety and Reachability Objectives. IST Austria, 2015. https://doi.org/10.15479/AT:IST-2015-322-v1-1.","short":"K. Chatterjee, R. Ibsen-Jensen, K. Hansen, The Patience of Concurrent Stochastic Games with Safety and Reachability Objectives, IST Austria, 2015.","ieee":"K. Chatterjee, R. Ibsen-Jensen, and K. Hansen, The patience of concurrent stochastic games with safety and reachability objectives. IST Austria, 2015.","apa":"Chatterjee, K., Ibsen-Jensen, R., & Hansen, K. (2015). The patience of concurrent stochastic games with safety and reachability objectives. IST Austria. https://doi.org/10.15479/AT:IST-2015-322-v1-1","ama":"Chatterjee K, Ibsen-Jensen R, Hansen K. The Patience of Concurrent Stochastic Games with Safety and Reachability Objectives. IST Austria; 2015. doi:10.15479/AT:IST-2015-322-v1-1","mla":"Chatterjee, Krishnendu, et al. The Patience of Concurrent Stochastic Games with Safety and Reachability Objectives. IST Austria, 2015, doi:10.15479/AT:IST-2015-322-v1-1."},"pubrep_id":"322","status":"public","type":"technical_report","_id":"5431","date_created":"2018-12-12T11:39:17Z","date_published":"2015-02-19T00:00:00Z","doi":"10.15479/AT:IST-2015-322-v1-1","page":"25","language":[{"iso":"eng"}],"day":"19","file":[{"file_id":"5491","checksum":"bfb858262c30445b8e472c40069178a2","access_level":"open_access","relation":"main_file","content_type":"application/pdf","date_created":"2018-12-12T11:53:31Z","file_name":"IST-2015-322-v1+1_safetygames.pdf","creator":"system","date_updated":"2020-07-14T12:46:53Z","file_size":661015}],"year":"2015","publication_status":"published","has_accepted_license":"1","publication_identifier":{"issn":["2664-1690"]},"month":"02","oa":1,"alternative_title":["IST Austria Technical Report"],"publisher":"IST Austria","oa_version":"Published Version","abstract":[{"lang":"eng","text":"We consider finite-state concurrent stochastic games, played by k>=2 players 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. We consider reachability objectives that given a target set of states require that some state in the target set is visited, and the dual safety objectives that given a target set require that only states in the target set are 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.\r\n\r\n Our main results are as follows: We show that in two-player zero-sum concurrent stochastic games (with reachability objective for one player and the complementary safety objective for the other player): (i) the optimal bound on the patience of optimal and epsilon-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. In general we study the class of non-zero-sum games admitting epsilon-Nash equilibria. We show that if there is at least one player with reachability objective, then doubly-exponential patience is needed in general for epsilon-Nash equilibrium strategies, whereas in contrast if all players have safety objectives, then the optimal bound on patience for epsilon-Nash equilibrium strategies is only exponential."}]},{"file_date_updated":"2020-07-14T12:46:53Z","title":"Optimal cost indefinite-horizon reachability in goal DEC-POMDPs","author":[{"first_name":"1","full_name":"Anonymous, 1","last_name":"Anonymous"},{"first_name":"2","last_name":"Anonymous","full_name":"Anonymous, 2"}],"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","ddc":["000"],"citation":{"mla":"Anonymous, 1, and 2 Anonymous. Optimal Cost Indefinite-Horizon Reachability in Goal DEC-POMDPs. IST Austria, 2015.","short":"1 Anonymous, 2 Anonymous, Optimal Cost Indefinite-Horizon Reachability in Goal DEC-POMDPs, IST Austria, 2015.","ieee":"1 Anonymous and 2 Anonymous, Optimal cost indefinite-horizon reachability in goal DEC-POMDPs. IST Austria, 2015.","apa":"Anonymous, 1, & Anonymous, 2. (2015). Optimal cost indefinite-horizon reachability in goal DEC-POMDPs. IST Austria.","ama":"Anonymous 1, Anonymous 2. Optimal Cost Indefinite-Horizon Reachability in Goal DEC-POMDPs. IST Austria; 2015.","chicago":"Anonymous, 1, and 2 Anonymous. Optimal Cost Indefinite-Horizon Reachability in Goal DEC-POMDPs. IST Austria, 2015.","ista":"Anonymous 1, Anonymous 2. 2015. Optimal cost indefinite-horizon reachability in goal DEC-POMDPs, IST Austria, 16p."},"date_updated":"2020-07-14T23:04:59Z","status":"public","pubrep_id":"326","type":"technical_report","_id":"5434","date_published":"2015-02-19T00:00:00Z","date_created":"2018-12-12T11:39:18Z","page":"16","day":"19","file":[{"file_size":378162,"date_updated":"2020-07-14T12:46:53Z","creator":"system","file_name":"IST-2015-326-v1+1_main.pdf","date_created":"2018-12-12T11:53:14Z","content_type":"application/pdf","relation":"main_file","access_level":"open_access","checksum":"8542fd0b10aed7811cd41077b8ccb632","file_id":"5475"},{"creator":"dernst","date_updated":"2020-07-14T12:46:53Z","file_size":64,"date_created":"2019-04-16T13:00:33Z","file_name":"IST-2015-326-v1+2_authors.txt","access_level":"closed","relation":"main_file","content_type":"text/plain","checksum":"84c31c537bdaf7a91909f18d25d640ab","file_id":"6317"}],"language":[{"iso":"eng"}],"publication_identifier":{"issn":["2664-1690"]},"has_accepted_license":"1","publication_status":"published","year":"2015","month":"02","alternative_title":["IST Austria Technical Report"],"publisher":"IST Austria","oa":1,"oa_version":"Published Version","abstract":[{"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 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 our approach presents promising results.","lang":"eng"}]},{"related_material":{"record":[{"relation":"later_version","id":"466","status":"public"},{"id":"5429","status":"public","relation":"earlier_version"},{"status":"public","id":"5435","relation":"earlier_version"}]},"ec_funded":1,"publication_status":"published","language":[{"iso":"eng"}],"alternative_title":["LICS"],"scopus_import":1,"month":"07","abstract":[{"text":"We consider Markov decision processes (MDPs) with multiple limit-average (or mean-payoff) objectives. There exist two different views: (i) ~the expectation semantics, where the goal is to optimize the expected mean-payoff objective, and (ii) ~the satisfaction semantics, where the goal is to maximize the probability of runs such that the mean-payoff value stays above a given vector. We consider optimization with respect to both objectives at once, thus unifying the existing semantics. Precisely, the goal is to optimize the expectation while ensuring the satisfaction constraint. Our problem captures the notion of optimization with respect to strategies that are risk-averse (i.e., Ensure certain probabilistic guarantee). Our main results are as follows: First, we present algorithms for the decision problems, which are always polynomial in the size of the MDP. We also show that an approximation of the Pareto curve can be computed in time polynomial in the size of the MDP, and the approximation factor, but exponential in the number of dimensions. Second, we present a complete characterization of the strategy complexity (in terms of memory bounds and randomization) required to solve our problem. ","lang":"eng"}],"oa_version":"None","department":[{"_id":"KrCh"},{"_id":"ToHe"}],"date_updated":"2023-02-23T12:26:16Z","type":"conference","conference":{"name":"LICS: Logic in Computer Science","start_date":"2015-07-06","location":"Kyoto, Japan","end_date":"2015-07-10"},"status":"public","series_title":"LICS","_id":"1657","page":"244 - 256","doi":"10.1109/LICS.2015.32","date_published":"2015-07-01T00:00:00Z","date_created":"2018-12-11T11:53:18Z","year":"2015","day":"01","publisher":"IEEE","quality_controlled":"1","acknowledgement":"A Technical Report of this paper is available at: https://repository.ist.ac.at/327\r\n","publist_id":"5493","author":[{"last_name":"Chatterjee","orcid":"0000-0002-4561-241X","full_name":"Chatterjee, Krishnendu","first_name":"Krishnendu","id":"2E5DCA20-F248-11E8-B48F-1D18A9856A87"},{"first_name":"Zuzana","last_name":"Komárková","full_name":"Komárková, Zuzana"},{"first_name":"Jan","id":"44CEF464-F248-11E8-B48F-1D18A9856A87","last_name":"Kretinsky","orcid":"0000-0002-8122-2881","full_name":"Kretinsky, Jan"}],"title":"Unifying two views on multiple mean-payoff objectives in Markov decision processes","citation":{"mla":"Chatterjee, Krishnendu, et al. Unifying Two Views on Multiple Mean-Payoff Objectives in Markov Decision Processes. IEEE, 2015, pp. 244–56, doi:10.1109/LICS.2015.32.","short":"K. Chatterjee, Z. Komárková, J. Kretinsky, (2015) 244–256.","ieee":"K. Chatterjee, Z. Komárková, and J. Kretinsky, “Unifying two views on multiple mean-payoff objectives in Markov decision processes.” IEEE, pp. 244–256, 2015.","ama":"Chatterjee K, Komárková Z, Kretinsky J. Unifying two views on multiple mean-payoff objectives in Markov decision processes. 2015:244-256. doi:10.1109/LICS.2015.32","apa":"Chatterjee, K., Komárková, Z., & Kretinsky, J. (2015). Unifying two views on multiple mean-payoff objectives in Markov decision processes. Presented at the LICS: Logic in Computer Science, Kyoto, Japan: IEEE. https://doi.org/10.1109/LICS.2015.32","chicago":"Chatterjee, Krishnendu, Zuzana Komárková, and Jan Kretinsky. “Unifying Two Views on Multiple Mean-Payoff Objectives in Markov Decision Processes.” LICS. IEEE, 2015. https://doi.org/10.1109/LICS.2015.32.","ista":"Chatterjee K, Komárková Z, Kretinsky J. 2015. Unifying two views on multiple mean-payoff objectives in Markov decision processes. , 244–256."},"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","project":[{"grant_number":"P 23499-N23","name":"Modern Graph Algorithmic Techniques in Formal Verification","call_identifier":"FWF","_id":"2584A770-B435-11E9-9278-68D0E5697425"},{"grant_number":"S 11407_N23","name":"Rigorous Systems Engineering","call_identifier":"FWF","_id":"25832EC2-B435-11E9-9278-68D0E5697425"},{"name":"The Wittgenstein Prize","grant_number":"Z211","call_identifier":"FWF","_id":"25F42A32-B435-11E9-9278-68D0E5697425"},{"name":"Quantitative Graph Games: Theory and Applications","grant_number":"279307","call_identifier":"FP7","_id":"2581B60A-B435-11E9-9278-68D0E5697425"},{"call_identifier":"FP7","_id":"25EE3708-B435-11E9-9278-68D0E5697425","grant_number":"267989","name":"Quantitative Reactive Modeling"},{"call_identifier":"FP7","_id":"25681D80-B435-11E9-9278-68D0E5697425","name":"International IST Postdoc Fellowship Programme","grant_number":"291734"}]},{"publication":"Proceedings - Symposium on Logic in Computer Science","day":"31","year":"2015","date_created":"2018-12-11T11:53:17Z","date_published":"2015-07-31T00:00:00Z","doi":"10.1109/LICS.2015.72","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), Z211-N23 (Wittgenstein Award), FWF Grant No P23499- N23, FWF NFN Grant No S11407-N23 (RiSE), ERC Start grant (279307: Graph Games), and Microsoft faculty fellows award.\r\nA Technical Report of the paper is available at: \r\nhttps://repository.ist.ac.at/331/\r\n","publisher":"IEEE","quality_controlled":"1","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","citation":{"chicago":"Chatterjee, Krishnendu, Thomas A Henzinger, and Jan Otop. “Nested Weighted Automata.” In Proceedings - Symposium on Logic in Computer Science, Vol. 2015–July. IEEE, 2015. https://doi.org/10.1109/LICS.2015.72.","ista":"Chatterjee K, Henzinger TA, Otop J. 2015. Nested weighted automata. Proceedings - Symposium on Logic in Computer Science. LICS: Logic in Computer Science vol. 2015–July, 7174926.","mla":"Chatterjee, Krishnendu, et al. “Nested Weighted Automata.” Proceedings - Symposium on Logic in Computer Science, vol. 2015–July, 7174926, IEEE, 2015, doi:10.1109/LICS.2015.72.","short":"K. Chatterjee, T.A. Henzinger, J. Otop, in:, Proceedings - Symposium on Logic in Computer Science, IEEE, 2015.","ieee":"K. Chatterjee, T. A. Henzinger, and J. Otop, “Nested weighted automata,” in Proceedings - Symposium on Logic in Computer Science, Kyoto, Japan, 2015, vol. 2015–July.","ama":"Chatterjee K, Henzinger TA, Otop J. Nested weighted automata. In: Proceedings - Symposium on Logic in Computer Science. Vol 2015-July. IEEE; 2015. doi:10.1109/LICS.2015.72","apa":"Chatterjee, K., Henzinger, T. A., & Otop, J. (2015). Nested weighted automata. In Proceedings - Symposium on Logic in Computer Science (Vol. 2015–July). Kyoto, Japan: IEEE. https://doi.org/10.1109/LICS.2015.72"},"title":"Nested weighted automata","external_id":{"arxiv":["1606.03598"]},"author":[{"id":"2E5DCA20-F248-11E8-B48F-1D18A9856A87","first_name":"Krishnendu","last_name":"Chatterjee","full_name":"Chatterjee, Krishnendu","orcid":"0000-0002-4561-241X"},{"last_name":"Henzinger","full_name":"Henzinger, Thomas A","orcid":"0000−0002−2985−7724","first_name":"Thomas A","id":"40876CD8-F248-11E8-B48F-1D18A9856A87"},{"last_name":"Otop","full_name":"Otop, Jan","first_name":"Jan","id":"2FC5DA74-F248-11E8-B48F-1D18A9856A87"}],"publist_id":"5494","article_number":"7174926","project":[{"grant_number":"267989","name":"Quantitative Reactive Modeling","call_identifier":"FP7","_id":"25EE3708-B435-11E9-9278-68D0E5697425"},{"_id":"25832EC2-B435-11E9-9278-68D0E5697425","call_identifier":"FWF","name":"Rigorous Systems Engineering","grant_number":"S 11407_N23"},{"grant_number":"Z211","name":"The Wittgenstein Prize","call_identifier":"FWF","_id":"25F42A32-B435-11E9-9278-68D0E5697425"},{"grant_number":"P 23499-N23","name":"Modern Graph Algorithmic Techniques in Formal Verification","_id":"2584A770-B435-11E9-9278-68D0E5697425","call_identifier":"FWF"},{"grant_number":"279307","name":"Quantitative Graph Games: Theory and Applications","_id":"2581B60A-B435-11E9-9278-68D0E5697425","call_identifier":"FP7"},{"name":"Microsoft Research Faculty Fellowship","_id":"2587B514-B435-11E9-9278-68D0E5697425"}],"language":[{"iso":"eng"}],"publication_status":"published","ec_funded":1,"volume":"2015-July","related_material":{"record":[{"relation":"later_version","id":"467","status":"public"},{"id":"5415","status":"public","relation":"earlier_version"},{"id":"5436","status":"public","relation":"earlier_version"}]},"oa_version":"None","abstract":[{"lang":"eng","text":"Recently there has been a significant effort to handle quantitative properties in formal verification and synthesis. While weighted automata over finite and infinite words provide a natural and flexible framework to express quantitative properties, perhaps surprisingly, some basic system properties such as average response time cannot be expressed using weighted automata, nor in any other know 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 run-time 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."}],"month":"07","scopus_import":1,"date_updated":"2023-02-23T12:26:19Z","department":[{"_id":"KrCh"},{"_id":"ToHe"}],"_id":"1656","status":"public","conference":{"start_date":"2015-07-06","location":"Kyoto, Japan","end_date":"2015-07-10","name":"LICS: Logic in Computer Science"},"type":"conference"},{"_id":"5429","pubrep_id":"318","status":"public","type":"technical_report","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","ddc":["004"],"citation":{"ista":"Chatterjee K, Komarkova Z, Kretinsky J. 2015. Unifying two views on multiple mean-payoff objectives in Markov decision processes, IST Austria, 41p.","chicago":"Chatterjee, Krishnendu, Zuzana Komarkova, and Jan Kretinsky. Unifying Two Views on Multiple Mean-Payoff Objectives in Markov Decision Processes. IST Austria, 2015. https://doi.org/10.15479/AT:IST-2015-318-v1-1.","short":"K. Chatterjee, Z. Komarkova, J. Kretinsky, Unifying Two Views on Multiple Mean-Payoff Objectives in Markov Decision Processes, IST Austria, 2015.","ieee":"K. Chatterjee, Z. Komarkova, and J. Kretinsky, Unifying two views on multiple mean-payoff objectives in Markov decision processes. IST Austria, 2015.","apa":"Chatterjee, K., Komarkova, Z., & Kretinsky, J. (2015). Unifying two views on multiple mean-payoff objectives in Markov decision processes. IST Austria. https://doi.org/10.15479/AT:IST-2015-318-v1-1","ama":"Chatterjee K, Komarkova Z, Kretinsky J. Unifying Two Views on Multiple Mean-Payoff Objectives in Markov Decision Processes. IST Austria; 2015. doi:10.15479/AT:IST-2015-318-v1-1","mla":"Chatterjee, Krishnendu, et al. Unifying Two Views on Multiple Mean-Payoff Objectives in Markov Decision Processes. IST Austria, 2015, doi:10.15479/AT:IST-2015-318-v1-1."},"date_updated":"2023-02-23T12:26:16Z","department":[{"_id":"KrCh"}],"title":"Unifying two views on multiple mean-payoff objectives in Markov decision processes","file_date_updated":"2020-07-14T12:46:52Z","author":[{"full_name":"Chatterjee, Krishnendu","orcid":"0000-0002-4561-241X","last_name":"Chatterjee","first_name":"Krishnendu","id":"2E5DCA20-F248-11E8-B48F-1D18A9856A87"},{"last_name":"Komarkova","full_name":"Komarkova, Zuzana","first_name":"Zuzana"},{"id":"44CEF464-F248-11E8-B48F-1D18A9856A87","first_name":"Jan","last_name":"Kretinsky","full_name":"Kretinsky, Jan","orcid":"0000-0002-8122-2881"}],"oa_version":"Published Version","abstract":[{"lang":"eng","text":"We consider Markov decision processes (MDPs) with multiple limit-average (or mean-payoff) objectives. \r\nThere have been two different views: (i) the expectation semantics, where the goal is to optimize the expected mean-payoff objective, and (ii) the satisfaction semantics, where the goal is to maximize the probability of runs such that the mean-payoff value stays above a given vector. \r\nWe consider the problem where the goal is to optimize the expectation under the constraint that the satisfaction semantics is ensured, and thus consider a generalization that unifies the existing semantics.\r\nOur problem captures the notion of optimization with respect to strategies that are risk-averse (i.e., ensures certain probabilistic guarantee).\r\nOur main results are algorithms for the decision problem which are always polynomial in the size of the MDP. We also show that an approximation of the Pareto-curve can be computed in time polynomial in the size of the MDP, and the approximation factor, but exponential in the number of dimensions.\r\nFinally, we present a complete characterization of the strategy complexity (in terms of memory bounds and randomization) required to solve our problem."}],"month":"01","oa":1,"publisher":"IST Austria","alternative_title":["IST Austria Technical Report"],"language":[{"iso":"eng"}],"file":[{"checksum":"e4869a584567c506349abda9c8ec7db3","file_id":"5533","content_type":"application/pdf","relation":"main_file","access_level":"open_access","file_name":"IST-2015-318-v1+1_main.pdf","date_created":"2018-12-12T11:54:11Z","file_size":689863,"date_updated":"2020-07-14T12:46:52Z","creator":"system"}],"day":"12","publication_status":"published","year":"2015","publication_identifier":{"issn":["2664-1690"]},"has_accepted_license":"1","date_created":"2018-12-12T11:39:17Z","date_published":"2015-01-12T00:00:00Z","related_material":{"record":[{"relation":"later_version","id":"1657","status":"public"},{"relation":"later_version","id":"466","status":"public"},{"relation":"later_version","id":"5435","status":"public"}]},"doi":"10.15479/AT:IST-2015-318-v1-1","page":"41"},{"type":"technical_report","status":"public","pubrep_id":"327","_id":"5435","author":[{"orcid":"0000-0002-4561-241X","full_name":"Chatterjee, Krishnendu","last_name":"Chatterjee","first_name":"Krishnendu","id":"2E5DCA20-F248-11E8-B48F-1D18A9856A87"},{"first_name":"Zuzana","last_name":"Komarkova","full_name":"Komarkova, Zuzana"},{"last_name":"Kretinsky","orcid":"0000-0002-8122-2881","full_name":"Kretinsky, Jan","first_name":"Jan","id":"44CEF464-F248-11E8-B48F-1D18A9856A87"}],"title":"Unifying two views on multiple mean-payoff objectives in Markov decision processes","file_date_updated":"2020-07-14T12:46:53Z","department":[{"_id":"KrCh"}],"citation":{"mla":"Chatterjee, Krishnendu, et al. Unifying Two Views on Multiple Mean-Payoff Objectives in Markov Decision Processes. IST Austria, 2015, doi:10.15479/AT:IST-2015-318-v2-1.","ieee":"K. Chatterjee, Z. Komarkova, and J. Kretinsky, Unifying two views on multiple mean-payoff objectives in Markov decision processes. IST Austria, 2015.","short":"K. Chatterjee, Z. Komarkova, J. Kretinsky, Unifying Two Views on Multiple Mean-Payoff Objectives in Markov Decision Processes, IST Austria, 2015.","ama":"Chatterjee K, Komarkova Z, Kretinsky J. Unifying Two Views on Multiple Mean-Payoff Objectives in Markov Decision Processes. IST Austria; 2015. doi:10.15479/AT:IST-2015-318-v2-1","apa":"Chatterjee, K., Komarkova, Z., & Kretinsky, J. (2015). Unifying two views on multiple mean-payoff objectives in Markov decision processes. IST Austria. https://doi.org/10.15479/AT:IST-2015-318-v2-1","chicago":"Chatterjee, Krishnendu, Zuzana Komarkova, and Jan Kretinsky. Unifying Two Views on Multiple Mean-Payoff Objectives in Markov Decision Processes. IST Austria, 2015. https://doi.org/10.15479/AT:IST-2015-318-v2-1.","ista":"Chatterjee K, Komarkova Z, Kretinsky J. 2015. Unifying two views on multiple mean-payoff objectives in Markov decision processes, IST Austria, 51p."},"date_updated":"2023-02-23T12:26:00Z","ddc":["004"],"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","publisher":"IST Austria","alternative_title":["IST Austria Technical Report"],"oa":1,"month":"02","abstract":[{"text":"We consider Markov decision processes (MDPs) with multiple limit-average (or mean-payoff) objectives. \r\nThere have been two different views: (i) the expectation semantics, where the goal is to optimize the expected mean-payoff objective, and (ii) the satisfaction semantics, where the goal is to maximize the probability of runs such that the mean-payoff value stays above a given vector. \r\nWe consider the problem where the goal is to optimize the expectation under the constraint that the satisfaction semantics is ensured, and thus consider a generalization that unifies the existing semantics. Our problem captures the notion of optimization with respect to strategies that are risk-averse (i.e., ensures certain probabilistic guarantee).\r\nOur main results are algorithms for the decision problem which are always polynomial in the size of the MDP.\r\nWe also show that an approximation of the Pareto-curve can be computed in time polynomial in the size of the MDP, and the approximation factor, but exponential in the number of dimensions. Finally, we present a complete characterization of the strategy complexity (in terms of memory bounds and randomization) required to solve our problem.","lang":"eng"}],"oa_version":"Published Version","page":"51","date_published":"2015-02-23T00:00:00Z","doi":"10.15479/AT:IST-2015-318-v2-1","related_material":{"record":[{"relation":"later_version","status":"public","id":"1657"},{"relation":"later_version","id":"466","status":"public"},{"relation":"earlier_version","id":"5429","status":"public"}]},"date_created":"2018-12-12T11:39:19Z","publication_identifier":{"issn":["2664-1690"]},"has_accepted_license":"1","publication_status":"published","year":"2015","file":[{"checksum":"75284adec80baabdfe71ff9ebbc27445","file_id":"5525","content_type":"application/pdf","access_level":"open_access","relation":"main_file","date_created":"2018-12-12T11:54:03Z","file_name":"IST-2015-318-v2+1_main.pdf","date_updated":"2020-07-14T12:46:53Z","file_size":717630,"creator":"system"}],"day":"23","language":[{"iso":"eng"}]}]