NDLI: Constraint Games: Framework and Local Search Solver

Content Provider	IEEE Xplore Digital Library
Author	Thi-Van-Anh Nguyen Lallouet, A. Bordeaux, L.
Copyright Year	2013
Description	Author affiliation: GREYC, Univ. de Caen Basse Normandie, Caen, France (Thi-Van-Anh Nguyen; Lallouet, A.) \|\| Microsoft Res., Cambridge, UK (Bordeaux, L.)
Abstract	Game theory is a highly successful paradigm for strategic decision making between multiple agents having conflicting objectives. Since a few years, games have been studied in a computational perspective, raising new issues like complexity of equilibria or succinctness of representation. Indeed, the main representation for general games is still a n-dimensional matrix of exponential size called normal form. In this paper, we introduce the framework of Constraint Games to model strategic interaction between players. A Constraint Game is composed of a set of variables shared by all the players. Among these variables, each player owns a set of decision variables she can control and a Constraint Optimization Problem defining her preferences. Since the preferences of a player depend on the decisions taken by the other players, each player may try to improve her position by choosing an assignment that optimizes her preferences. Pure Nash equilibria are situations in which no player may improve her preferences unilaterally. Constraint Games are thus a generic tool to model general games and can be exponentially more succinct than their normal form. We show the practical utility of the framework by modelling a few realistic problems and we propose an algorithm based on tabu search to compute pure Nash equilibria in Constraint games that outperforms the algorithms based on normal form. In addition, Constraint Games raise some interesting research issues that deserve further attention.
Sponsorship	IEEE Comput. Soc.
Starting Page	963
Ending Page	970
File Size	222252
Page Count	8
File Format	PDF
ISSN	10823409
e-ISBN	9781479929726
DOI	10.1109/ICTAI.2013.146
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-11-04
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Games Nash equilibrium Computational modeling Constraint optimization Resource management Nash Equilibria Constraint Programming Game theory
Content Type	Text
Resource Type	Article

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