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arXiv 2212.00699cs.GT
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Game Implementation:障碍是什么?

Game Implementation: What Are the Obstructions?

Jiehua Chen, Sebastian Vincent Haydn, Negar Layegh Khavidaki, Sofia Simola, Manuel Sorge

摘要:

在许多应用中,我们希望通过为独立代理人的行为设计激励措施来影响他们的决策。我们重新审视这一领域的一个基本问题,称为博弈实现:给定一个标准形式的博弈和一组期望的策略,我们能否设计一组支付承诺,使得如果玩家考虑支付承诺,那么所有非劣策略都是期望的?此外,我们的目标是尽量减少成本,即最坏情况下的付款额。我们研究计算这种付款承诺的易处理性,并更密切地确定我们在这样做时可能必须克服的障碍。我们证明了即使对于两个参与者,博弈实现也是NP难的,特别是解决了一个长期的开放问题(Escherbenz et al. 2011),并建议需要更多的限制来获得易处理的结果。因此,我们研究的制度,其中的球员只有一个小的常数数量的战略,并获得以下。首先,即使每个参与者的效用只取决于其他三个参与者,这种情况仍然是NP难的。其次,我们修复了一个有缺陷的有效算法的情况下,既有少量的战略和少量的球员。在进一步的结果中,我们描述了一组所需的策略,可以实现零成本作为一种稳定的游戏核心。

英文摘要:

In many applications, we want to influence the decisions of independent agents by designing incentives for their actions. We revisit a fundamental problem in this area, called GAME IMPLEMENTATION: Given a game in standard form and a set of desired strategies, can we design a set of payment promises such that if the players take the payment promises into account, then all undominated strategies are desired? Furthermore, we aim to minimize the cost, that is, the worst-case amount of payments. We study the tractability of computing such payment promises and determine more closely what obstructions we may have to overcome in doing so. We show that GAME IMPLEMENTATION is NP-hard even for two players, solving in particular a long open question (Eidenbenz et al. 2011) and suggesting more restrictions are necessary to obtain tractability results. We thus study the regime in which players have only a small constant number of strategies and obtain the following. First, this case remains NP-hard even if each player's utility depends only on three others. Second, we repair a flawed efficient algorithm for the case of both small number of strategies and small number of players. Among further results, we characterize sets of desired strategies that can be implemented at zero cost as a kind of stable core of the game.

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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