arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1908.09893cs.GTcs.AIcs.MA
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可拓形式对策中的粗相关性

Coarse Correlation in Extensive-Form Games

Carnegie Mellon University(卡内基梅隆大学);Politecnico di Milano(米兰理工大学);Strategic Machine, Inc.(战略机器公司);Strategy Robot, Inc.(战略机器人公司);Optimized Markets, Inc.(优化市场公司)

Gabriele Farina, Tommaso Bianchi, Tuomas Sandholm

摘要:

粗糙相关性模型的理性主体的战略相互作用的相关性设备,这是一个中介,可以建议的行为,但不强制执行它。尽管是一个经典的概念,在正常形式的游戏理论超过40年,没有太多的了解粗糙相关性的优点,在广泛的形式设置。在本文中,我们考虑两个实例的想法,粗相关的扩展形式的游戏:规范形式的粗相关均衡(NFCCE),已经在文献中定义,和扩展形式的粗相关均衡(EFCCE),我们介绍的第一次。我们证明了EFCCE是NFCCE的一个子集,也是相关扩展形式相关均衡的一个超集。我们还表明,在两个球员的扩展形式的游戏,社会福利最大化的EFCCE和NFCEEs是双线性鞍点,并给出新的有效算法的特殊情况下的游戏没有机会移动。在我们的实验中,我们提出的NFCCE算法比现有技术快两到四个数量级。

英文摘要:

Coarse correlation models strategic interactions of rational agents complemented by a correlation device, that is a mediator that can recommend behavior but not enforce it. Despite being a classical concept in the theory of normal-form games for more than forty years, not much is known about the merits of coarse correlation in extensive-form settings. In this paper, we consider two instantiations of the idea of coarse correlation in extensive-form games: normal-form coarse-correlated equilibrium (NFCCE), already defined in the literature, and extensive-form coarse-correlated equilibrium (EFCCE), which we introduce for the first time. We show that EFCCE is a subset of NFCCE and a superset of the related extensive-form correlated equilibrium. We also show that, in two-player extensive-form games, social-welfare-maximizing EFCCEs and NFCEEs are bilinear saddle points, and give new efficient algorithms for the special case of games with no chance moves. In our experiments, our proposed algorithm for NFCCE is two to four orders of magnitude faster than the prior state of the art.

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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