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arXiv 1409.6489cs.GT
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关于二人对策的终止改进

On terminating improvement in two-player games

Stephane Le Roux

摘要:

一个实值博弈具有有限改进性质(FIP),如果从一个任意的策略配置文件开始,让参与者改变策略,以连续但不确定的顺序增加他们的个人收益,总是达到纳什均衡。例如,在一个示例中,潜在的游戏有FIP。尽管如此,他们中的许多人都是偶然获得FIP的,因为即使修改一个单一的收益也可能会破坏财产。这篇文章的特点(在二次时间)类的有限游戏,FIP不仅持有,但也被保存时,修改所有出现的任意支付。的特征依赖于一个模式匹配的充分条件,游戏(有限或无限)享受FIP,其次是这个类的归纳描述。如果上述改进能达到纳什均衡,则实值博弈是弱无环的。本文利用马尔可夫链和几乎必然收敛于均衡的性质刻画了有限个这类对策。它也给出了一个归纳描述的两个玩家这样的游戏。

英文摘要:

A real-valued game has the finite improvement property (FIP), if starting from an arbitrary strategy profile and letting the players change strategies to increase their individual payoffs in a sequential but non-deterministic order always reaches a Nash equilibrium. E.g., potential games have the FIP. Many of them have the FIP by chance nonetheless, since modifying even a single payoff may ruin the property. This article characterises (in quadratic time) the class of the finite games where FIP not only holds but is also preserved when modifying all the occurrences of an arbitrary payoff. The characterisation relies on a pattern-matching sufficient condition for games (finite or infinite) to enjoy the FIP, and is followed by an inductive description of this class. A real-valued game is weakly acyclic if the improvement described above can reach a Nash equilibrium. This article characterises the finite such games using Markov chains and almost sure convergence to equilibrium. It also gives an inductive description of the two-player such games.

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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