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arXiv 1303.0787cs.AIcs.GT
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迭代投票中的限制操纵:收敛性和孔多塞效率

Restricted Manipulation in Iterative Voting: Convergence and Condorcet Efficiency

University of Padova(帕多瓦大学);Tulane University(杜兰大学);IHMC(人类与机器认知研究所);NICTA(国家信息与通信技术澳大利亚有限公司);UNSW(新南威尔士大学)

Umberto Grandi, Andrea Loreggia, Francesca Rossi, Kristen Brent Venable, Toby Walsh

摘要:

在集体决策中,使用投票规则在一组代理之间进行集体决策,一个或多个代理的操纵通常被认为是要避免的负面行为,或者至少要使代理在计算上难以执行。然而,在某些情况下,限制形式的操纵反而是有益的。在本文中,我们考虑几个投票规则的迭代版本,在每一步中,一个代理被允许通过修改他的选票根据一组限制的操作动作,这是计算上容易,需要很少的信息进行操作。我们证明了收敛的迭代投票规则时,限制操作是允许的,我们目前的实验表明,大多数迭代投票规则有一个更高的孔多塞效率比他们的非迭代版本。

英文摘要:

In collective decision making, where a voting rule is used to take a collective decision among a group of agents, manipulation by one or more agents is usually considered negative behavior to be avoided, or at least to be made computationally difficult for the agents to perform. However, there are scenarios in which a restricted form of manipulation can instead be beneficial. In this paper we consider the iterative version of several voting rules, where at each step one agent is allowed to manipulate by modifying his ballot according to a set of restricted manipulation moves which are computationally easy and require little information to be performed. We prove convergence of iterative voting rules when restricted manipulation is allowed, and we present experiments showing that most iterative voting rules have a higher Condorcet efficiency than their non-iterative version.

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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