arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2011.12259cs.GT
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偏好下的分数匹配:稳定性和最优性

Fractional Matchings under Preferences: Stability and Optimality

Jiehua Chen, Sanjukta Roy, Manuel Sorge

摘要:

我们深入研究了经典的稳定婚姻和稳定室友问题的广义版本,代理商可以共享合作伙伴。我们考虑两个突出的稳定性概念:序数稳定性[Aharoni和Fleiner,Journal of Combinatorial Theory,2003]和基数稳定性[Caragiannis等人,ACM EC 2019]和两个最优性标准:最大化社会福利(即,代理的总体满意度)和最大化完全匹配的代理的数量(即,其份额总和为1的代理人)。在观察到序数稳定性总是存在的,并暗示基数稳定性,并在一个限制的情况下,顺序稳定匹配的集合承认一个格结构,我们得到一个完整的图片关于计算复杂性找到一个最佳的顺序稳定或基数稳定匹配。在此过程中,我们回答了Caragiannis等人提出的一个开放性问题[AIJ 2020]。

英文摘要:

We thoroughly study a generalized version of the classic Stable Marriage and Stable Roommates problems where agents may share partners. We consider two prominent stability concepts: ordinal stability [Aharoni and Fleiner, Journal of Combinatorial Theory, 2003] and cardinal stability [Caragiannis et al., ACM EC 2019] and two optimality criteria: maximizing social welfare (i.e., the overall satisfaction of the agents) and maximizing the number of fully matched agents (i.e., agents whose shares sum up to one). After having observed that ordinal stability always exists and implies cardinal stability, and that the set of ordinally stable matchings in a restricted case admits a lattice structure, we obtain a complete picture regarding the computational complexity of finding an optimal ordinally stable or cardinally stable matching. In the process we answer an open question raised by Caragiannis et al. [AIJ 2020].

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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