One-Clock Priced Timed Games with Negative Weights

Priced timed games are two-player zero-sum games played on priced timed automata (whose locations and transitions are labeled by weights modelling the cost of spending time in a state and executing an action, respectively). The goals of the players are to minimise and maximise the cost to reach a ta...

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Main Authors: Thomas Brihaye, Gilles Geeraerts, Axel Haddad, Engel Lefaucheux, Benjamin Monmege
Format: Article
Language:English
Published: Logical Methods in Computer Science e.V. 2022-08-01
Series:Logical Methods in Computer Science
Subjects:
Online Access:https://lmcs.episciences.org/6764/pdf
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author Thomas Brihaye
Gilles Geeraerts
Axel Haddad
Engel Lefaucheux
Benjamin Monmege
author_facet Thomas Brihaye
Gilles Geeraerts
Axel Haddad
Engel Lefaucheux
Benjamin Monmege
author_sort Thomas Brihaye
collection DOAJ
description Priced timed games are two-player zero-sum games played on priced timed automata (whose locations and transitions are labeled by weights modelling the cost of spending time in a state and executing an action, respectively). The goals of the players are to minimise and maximise the cost to reach a target location, respectively. We consider priced timed games with one clock and arbitrary integer weights and show that, for an important subclass of them (the so-called simple priced timed games), one can compute, in pseudo-polynomial time, the optimal values that the players can achieve, with their associated optimal strategies. As side results, we also show that one-clock priced timed games are determined and that we can use our result on simple priced timed games to solve the more general class of so-called negative-reset-acyclic priced timed games (with arbitrary integer weights and one clock). The decidability status of the full class of priced timed games with one-clock and arbitrary integer weights still remains open.
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spelling doaj.art-855a3ad47a244767baac92a13811c6042024-03-08T10:39:30ZengLogical Methods in Computer Science e.V.Logical Methods in Computer Science1860-59742022-08-01Volume 18, Issue 310.46298/lmcs-18(3:17)20226764One-Clock Priced Timed Games with Negative WeightsThomas BrihayeGilles GeeraertsAxel HaddadEngel LefaucheuxBenjamin MonmegePriced timed games are two-player zero-sum games played on priced timed automata (whose locations and transitions are labeled by weights modelling the cost of spending time in a state and executing an action, respectively). The goals of the players are to minimise and maximise the cost to reach a target location, respectively. We consider priced timed games with one clock and arbitrary integer weights and show that, for an important subclass of them (the so-called simple priced timed games), one can compute, in pseudo-polynomial time, the optimal values that the players can achieve, with their associated optimal strategies. As side results, we also show that one-clock priced timed games are determined and that we can use our result on simple priced timed games to solve the more general class of so-called negative-reset-acyclic priced timed games (with arbitrary integer weights and one clock). The decidability status of the full class of priced timed games with one-clock and arbitrary integer weights still remains open.https://lmcs.episciences.org/6764/pdfcomputer science - computer science and game theorycomputer science - logic in computer science
spellingShingle Thomas Brihaye
Gilles Geeraerts
Axel Haddad
Engel Lefaucheux
Benjamin Monmege
One-Clock Priced Timed Games with Negative Weights
Logical Methods in Computer Science
computer science - computer science and game theory
computer science - logic in computer science
title One-Clock Priced Timed Games with Negative Weights
title_full One-Clock Priced Timed Games with Negative Weights
title_fullStr One-Clock Priced Timed Games with Negative Weights
title_full_unstemmed One-Clock Priced Timed Games with Negative Weights
title_short One-Clock Priced Timed Games with Negative Weights
title_sort one clock priced timed games with negative weights
topic computer science - computer science and game theory
computer science - logic in computer science
url https://lmcs.episciences.org/6764/pdf
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AT engellefaucheux oneclockpricedtimedgameswithnegativeweights
AT benjaminmonmege oneclockpricedtimedgameswithnegativeweights