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arXiv 1407.3247cs.GTcs.AIcs.MA
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多赢家批准投票的计算方面

Computational Aspects of Multi-Winner Approval Voting

NICTA(国家信息与通信技术研究院);UNSW(新南威尔士大学);University of Sydney(悉尼大学)

Haris Aziz, Serge Gaspers, Joachim Gudmundsson, Simon Mackenzie, Nicholas Mattei, Toby Walsh

摘要:

我们研究计算方面的三个突出的投票规则,使用批准选票选出多个赢家。这些规则是满意批准投票,比例批准投票和重新加权批准投票。我们首先表明,计算的赢家比例批准投票是NP难的,关闭一个长期存在的开放问题。由于没有一个规则是防策略的,即使是二分法的偏好,我们研究的规则的各个战略方面。特别是,我们研究的计算复杂性计算最佳对策的一个单一的代理和一组代理。在许多设置中,我们表明,这是NP-难的代理或代理计算如何最好地投票给一组固定的批准选票从其他代理。

英文摘要:

We study computational aspects of three prominent voting rules that use approval ballots to elect multiple winners. These rules are satisfaction approval voting, proportional approval voting, and reweighted approval voting. We first show that computing the winner for proportional approval voting is NP-hard, closing a long standing open problem. As none of the rules are strategyproof, even for dichotomous preferences, we study various strategic aspects of the rules. In particular, we examine the computational complexity of computing a best response for both a single agent and a group of agents. In many settings, we show that it is NP-hard for an agent or agents to compute how best to vote given a fixed set of approval ballots from the other agents.

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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