Atomic congestion games: Fast, myopic and concurrent

Fotakis, D; Kaporis, AC; Spirakis, PG

dc.contributor.author	Fotakis, D	en
dc.contributor.author	Kaporis, AC	en
dc.contributor.author	Spirakis, PG	en
dc.date.accessioned	2014-03-01T01:32:53Z
dc.date.available	2014-03-01T01:32:53Z
dc.date.issued	2010	en
dc.identifier.issn	1432-4350	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/20234
dc.subject	Approximate Nash Equilibria	en
dc.subject	Atomic model	en
dc.subject	Distributed congestion games	en
dc.subject.classification	Computer Science, Theory & Methods	en
dc.subject.classification	Mathematics	en
dc.title	Atomic congestion games: Fast, myopic and concurrent	en
heal.type	journalArticle	en
heal.identifier.primary	10.1007/s00224-009-9198-2	en
heal.identifier.secondary	http://dx.doi.org/10.1007/s00224-009-9198-2	en
heal.language	English	en
heal.publicationDate	2010	en
heal.abstract	We study here the effect of concurrent greedy moves of players in atomic congestion games where n selfish agents (players) wish to select a resource each (out of m resources) so that her selfish delay there is not much. The problem of ""maintaining"" global progress while allowing concurrent play is exactly what is examined and answered here. We examine two orthogonal settings: (i) A game where the players decide their moves without global information, each acting ""freely"" by sampling resources randomly and locally deciding to migrate (if the new resource is better) via a random experiment. Here, the resources can have quite arbitrary latency that is load dependent. (ii) An ""organised"" setting where the players are pre-partitioned into selfish groups (coalitions) and where each coalition does an improving coalitional move. Our work considers concurrent selfish play for arbitrary latencies for the first time. Also, this is the first time where fast coalitional convergence to an approximate equilibrium is shown. © Springer Science+Business Media, LLC 2009.	en
heal.publisher	SPRINGER	en
heal.journalName	Theory of Computing Systems	en
dc.identifier.doi	10.1007/s00224-009-9198-2	en
dc.identifier.isi	ISI:000276746800004	en
dc.identifier.volume	47	en
dc.identifier.issue	1	en
dc.identifier.spage	38	en
dc.identifier.epage	59	en