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Computer Science > Computer Science and Game Theory

arXiv:2308.09625 (cs)
[Submitted on 18 Aug 2023 (v1), last revised 2 Oct 2024 (this version, v2)]

Title:Multi-weighted Reachability Games and Their Application to Permissiveness

Authors:Thomas Brihaye, Aline Goeminne
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Abstract: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. The constrained existence problem is proved in P for the lexicographic order and PSPACE-complete for the componentwise order. Finally, we show how complexity results about permissiveness of multi-strategies in two-player quantitative reachability games can be derived from the results we obtained in the two-player multi-weighted reachability games setting.
Subjects: Computer Science and Game Theory (cs.GT)
Cite as: arXiv:2308.09625 [cs.GT]
  (or arXiv:2308.09625v2 [cs.GT] for this version)
  https://doi.org/10.48550/arXiv.2308.09625

Submission history

From: Aline Goeminne [view email]
[v1] Fri, 18 Aug 2023 15:36:59 UTC (53 KB)
[v2] Wed, 2 Oct 2024 14:23:08 UTC (58 KB)
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