AAAI Publications, Twenty-Ninth AAAI Conference on Artificial Intelligence

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Congestion Games with Distance-Based Strict Uncertainty
Reshef Meir, David Parkes

Last modified: 2015-02-16


We put forward a new model of congestion games where agents have uncertainty over the routes used by other agents. We take a non-probabilistic approach, assuming that each agent knows that the number of agents using an edge is within a certain range. Given this uncertainty, we model agents who either minimize their worst-case cost (WCC) or their worst-case regret (WCR), and study implications on equilibrium existence, convergence through adaptive play, and efficiency. Under the WCC behavior the game reduces to a modified congestion game, and welfare improves when agents have moderate uncertainty. Under WCR behavior the game is not, in general, a congestion game, but we show convergence and efficiency bounds for a simple class of games.


congestion games; uncertainty; potential; routing

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