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Intitulé:   
Energy and Mean-Payoff Games
du groupe Modélisation et Verification

Date 2010-12-16  11:30-12:30
TitreEnergy and Mean-Payoff Games 
RésuméWe consider game models for the design of reactive systems working in ressource-constrained environments. In mean-payoff games, the ressource usage is computed as the long-run average ressource level. In energy games, the ressource usage is the intial amount of ressource necessary to maintain the ressource level positive. The resource can be memory, battery, or network usage for example. While mean-payoff games are a well-established model in game theory and computer science, energyy games have received attention only recently. The talk reviews recent results about these games and their relationship. Although they differ very basically in their definition, it is known that energy and mean-payoff games are equivalent for the simple decision problem of existence of a winning strategy. This observation provides new complexity results for solving mean-payoff games, and new insights for mean-payoff games combined with other conditions such as fairness, imperfect information, or multi-ressource systems, though the strong equivalence with energy games usually breaks in such cases.  
LieuSalle 076, LaBRI, Rez-de-chaussée 
OrateurLaurent Doyen 
Emaildoyen@lsv.ens-cachan.fr 
UrlLSV, Cachan 



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