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arXiv 1407.7216cs.DScs.CCcs.GT
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用于极小极大批准投票的PTAS

PTAS for Minimax Approval Voting

Jaroslaw Byrka, Krzysztof Sornat

摘要:

我们考虑批准投票系统,其中每个选民决定他/她批准的候选人的子集。我们专注于寻找委员会的固定大小k最小化最大汉明距离从投票的优化问题。在本文中,我们给出了这个问题的PTAS,从而解决了Carragianis等人提出的公开问题。[AAAI'10]。结果是通过适应李等人开发的技术。[JACM'02]最初用于约束较少的最接近字符串问题。该技术依赖于提取信息和恒定大小的投票子集的结构属性。

英文摘要:

We consider Approval Voting systems where each voter decides on a subset to candidates he/she approves. We focus on the optimization problem of finding the committee of fixed size k minimizing the maximal Hamming distance from a vote. In this paper we give a PTAS for this problem and hence resolve the open question raised by Carragianis et al. [AAAI'10]. The result is obtained by adapting the techniques developed by Li et al. [JACM'02] originally used for the less constrained Closest String problem. The technique relies on extracting information and structural properties of constant size subsets of votes.

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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