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Multi-weighted Reachability Games
Brihaye, Thomas; Goeminne, Aline
2023In Bournez, Olivier (Ed.) Reachability Problems - 17th International Conference, RP 2023, Proceedings
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Keywords :
lexico-optimal strategies; Pareto-optimal strategies; two-player games on graphs; Reachability; multi-weighted reachability games
Abstract :
[en] We study two-player multi-weighted reachability games played on a finite directed graph, where an agent, called P1, has several quantitative reachability objectives that he wants to optimize against an antagonistic environment, called P2. In this setting, we ask what cost profiles P1 can ensure regardless of the opponent’s behavior. Cost profiles are compared thanks to: (i) a lexicographic order that ensures the unicity of an upper value and (ii) a componentwise order for which we consider the Pareto frontier. We synthesize (i) lexico-optimal strategies and (ii) Pareto-optimal strategies. The strategies are obtained thanks to a fixpoint algorithm which also computes the upper value in polynomial time and the Pareto frontier in exponential time. Finally, the constrained existence problem is proved in PTIME for the lexicographic order and PSPACE -complete for the componentwise order.
Disciplines :
Computer science
Author, co-author :
Brihaye, Thomas  ;  Université de Mons - UMONS > Faculté des Science > Service de Mathématiques effectives
Goeminne, Aline ;  Université de Mons - UMONS > Faculté des Science > Service de Mathématiques effectives
Language :
English
Title :
Multi-weighted Reachability Games
Publication date :
2023
Event name :
17th International Conference on Reachability Problems
Event place :
Nice, France
Event date :
11-10-2023 => 13-10-2023
Main work title :
Reachability Problems - 17th International Conference, RP 2023, Proceedings
Editor :
Bournez, Olivier
Publisher :
Springer Science and Business Media Deutschland GmbH
ISBN/EAN :
978-3-03-145285-7
Peer reviewed :
Peer reviewed
Research unit :
S820 - Mathématiques effectives
Research institute :
R150 - Institut de Recherche sur les Systèmes Complexes
Name of the research project :
5581 - CR-Brihaye - RobSynthMulTiGa - Fédération Wallonie Bruxelles
5330 - PDR-Brihaye - RatBeCoSi - Fédération Wallonie Bruxelles
Funders :
F.R.S.-FNRS - Fonds de la Recherche Scientifique [BE]
Funding text :
T. Brihaye—Partly supported by the F.R.S.-FNRS under grant n◦T.0027.21. A. Goeminne— Postdoctoral Researcher of the Fonds de la Recherche Scientifique - FNRS.
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