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arXiv 1207.4147cs.GT
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严格型不确定对策的后悔最小化均衡与机制

Regret Minimizing Equilibria and Mechanisms for Games with Strict Type Uncertainty

Nathanael Hyafil, Craig Boutilier

摘要:

机制设计在代理交互协议的构建中有着广泛的应用。在标准设置中,类型(例如,效用函数)不为其他代理所知,也不为机制设计者所知。当这种不确定性被概率量化时,一种机制会导致代理之间的不完全信息博弈。然而,在许多情况下,效用函数的不确定性不容易量化。研究了不完全信息博弈问题,其中不确定性是严格的或不可量化的。我们建议使用极大极小遗憾作为决策标准,在这样的游戏,一个强大的方法来处理类型的不确定性。我们定义了最小最大遗憾均衡,并证明了这些存在于有限游戏的混合策略。在此框架下,采用极大极小遗憾作为设计者自身的优化准则,研究了机制设计问题,并对此类机构的自动优化进行了研究。

英文摘要:

Mechanism design has found considerable application to the construction of agent-interaction protocols. In the standard setting, the type (e.g., utility function) of an agent is not known by other agents, nor is it known by the mechanism designer. When this uncertainty is quantified probabilistically, a mechanism induces a game of incomplete information among the agents. However, in many settings, uncertainty over utility functions cannot easily be quantified. We consider the problem of incomplete information games in which type uncertainty is strict or unquantified. We propose the use of minimax regret as a decision criterion in such games, a robust approach for dealing with type uncertainty. We define minimax-regret equilibria and prove that these exist in mixed strategies for finite games. We also consider the problem of mechanism design in this framework by adopting minimax regret as an optimization criterion for the designer itself, and study automated optimization of such mechanisms.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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