Jorge Cortés


Learning of equilibria and misperceptions in hypergames with perfect observations
B. Gharesifard, J. Cortés
Proceedings of the American Control Conference, San Francisco, California, USA, 2011, pp. 4045-4050


This paper studies the learning of equilibria in adversarial situations when players may have misperceptions about the game they are involved in with their opponents. We use the concept of high-level hypergames to model these scenarios. By drawing connections with the theory of ordinal potential games, we establish that players in a hypergame can individually learn their perceived equilibria using any improving adjustment scheme. We investigate how players can incorporate the information gained from observing the opponents' actions by updating different levels of her perception. We introduce high-level perception updating algorithms for resolving possible inconsistencies in perceptions using self-blaming or opponent-blaming strategies. Finally, we establish that when all players are rational and have perfect observation about past outcomes, the repeated play of the hypergame converges to an equilibrium.

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