Elections with Few Candidates: Prices, Weights, and Covering Problems

Elections with Few Candidates: Prices, Weights, and Covering Problems
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候选人很少的选举:价格、权重和覆盖问题

DOI:
10.1007/978-3-319-23114-3_25
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发表时间:
2015
期刊:
影响因子:
--
通讯作者:
Nimrod Talmon
Nimrod Talmon
中科院分区:
--
文献类型:
--
作者:
Robert Bredereck;Piotr Faliszewski;Rolf Niedermeier;Piotr Skowron;Nimrod Talmon

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我们表明,当通过候选人数量进行参数化时,许多与选举相关的价格问题(例如贿赂)是固定参数可处理的(in)。对于行贿问题,这解决了一个近10年的家庭悬而未决的问题。我们的结果遵循一种通用技术,将投票问题表述为覆盖问题,并扩展了使用整数线性规划和 Lenstra 算法的经典方法 [19]。在这种情况下,我们的中心结果是,由宇宙大小参数化的加权集多重覆盖是固定参数易于处理的。我们的方法也适用于批准投票的加权选举控制。我们将以前已知的会员资格改进为会员资格。我们对基于现实世界的数据进行的初步实验表明,我们的方法对于候选者很少的情况具有实际用途。
We show that a number of election-related problems with prices (such as, for example, bribery) are fixed-parameter tractable (in) when parameterized by the number of candidates. For bribery, this resolves a nearly 10-year old family of open problems. Our results follow by a general technique that formulates voting problems as covering problems and extends the classic approach of using integer linear programming and the algorithm of Lenstra [19]. In this context, our central result is thatWeighted Set Multicoverparameterized by the universe size is fixed-parameter tractable. Our approach is also applicable to weighted electoral control for Approval voting. We improve previously known-memberships to-memberships. Our preliminary experiments on real-world-based data show the practical usefulness of our approach for instances with few candidates.
批准驱动的投票规则下的竞选管理
DOI: 10.1007/s00453-015-0064-0
发表时间: 2011
期刊: Algorithmica
影响因子: 1.1
作者:
Ildikó Schlotter;Piotr Faliszewski;Edith Elkind
通讯作者: Edith Elkind
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DOI: 10.1613/jair.4621
发表时间: 2013
期刊: ArXiv
影响因子: --
作者:
Piotr Faliszewski;E. Hemaspaandra;L. Hemaspaandra
通讯作者: L. Hemaspaandra
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DOI: 10.1016/j.jcss.2014.11.003
发表时间: 2015
期刊: J. Comput. Syst. Sci.
影响因子: --
作者:
G. Erdélyi;M. Fellows;J. Rothe;Lena Schend
通讯作者: Lena Schend