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arXiv 2103.14979cs.GTcs.MA
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动态信息共享与惩罚策略

Dynamic Information Sharing and Punishment Strategies

Konstantinos Ntemos, George Pikramenos, Nicholas Kalouptsidis

摘要:

本文将理性自利主体之间的信息共享问题作为一个信息不对称的动态博弈来研究。我们假设代理不完美地观察马尔可夫链,他们被要求决定他们是否会分享他们的噪音观察或不在每个时刻。我们利用条件互信息的概念来评估信息之间共享的代理。由于代理的信息结构和决策的相互依赖性所带来的挑战。对于有限时域博弈,我们证明了代理人没有分享信息的动机。相比之下,我们表明,合作可以持续在无限地平线的情况下,通过设计适当的惩罚策略,这是定义在代理的系统状态的信念。我们表明,这些策略在最佳响应映射下是封闭的,并且合作可能是状态信念单纯形的某些子集中的最佳选择。我们描述了这些平衡区域,证明了最大平衡区域的唯一性,并设计了一个算法,其近似计算。

英文摘要:

In this paper we study the problem of information sharing among rational self-interested agents as a dynamic game of asymmetric information. We assume that the agents imperfectly observe a Markov chain and they are called to decide whether they will share their noisy observations or not at each time instant. We utilize the notion of conditional mutual information to evaluate the information being shared among the agents. The challenges that arise due to the inter-dependence of agents' information structure and decision-making are exhibited. For the finite horizon game we prove that agents do not have incentive to share information. In contrast, we show that cooperation can be sustained in the infinite horizon case by devising appropriate punishment strategies which are defined over the agents' beliefs on the system state. We show that these strategies are closed under the best-response mapping and that cooperation can be the optimal choice in some subsets of the state belief simplex. We characterize these equilibrium regions, prove uniqueness of a maximal equilibrium region and devise an algorithm for its approximate computation.

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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