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» On the Structure of Weakly Acyclic Games
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ANOR
2008
69views more  ANOR 2008»
13 years 5 months ago
NP-hardness results for the aggregation of linear orders into median orders
Abstract Given a collection of individual preferences defined on a same finite set of candidates, we consider the problem of aggregating them into a collective preference minimizin...
Olivier Hudry
WINE
2007
Springer
191views Economy» more  WINE 2007»
13 years 11 months ago
The Importance of Network Topology in Local Contribution Games
We consider a model of content contribution in peer-to-peer networks with linear quadratic payoffs and very general interaction patterns. We find that Nash equilibria of this gam...
Jacomo Corbo, Antoni Calvó-Armengol, David ...
TARK
2007
Springer
13 years 11 months ago
Unawareness, beliefs and games
We define a generalized state-space model with interactive unawareness and probabilistic beliefs. Such models are desirable for many potential applications of asymmetric unawaren...
Aviad Heifetz, Martin Meier, Burkhard C. Schipper
ATAL
2008
Springer
13 years 6 months ago
Interaction-driven Markov games for decentralized multiagent planning under uncertainty
In this paper we propose interaction-driven Markov games (IDMGs), a new model for multiagent decision making under uncertainty. IDMGs aim at describing multiagent decision problem...
Matthijs T. J. Spaan, Francisco S. Melo
STOC
2009
ACM
150views Algorithms» more  STOC 2009»
14 years 5 months ago
Integrality gaps for Sherali-Adams relaxations
We prove strong lower bounds on integrality gaps of Sherali?Adams relaxations for MAX CUT, Vertex Cover, Sparsest Cut and other problems. Our constructions show gaps for Sherali?A...
Moses Charikar, Konstantin Makarychev, Yury Makary...