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arXiv 2112.04166cs.GTecon.TH
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重新审视不可分割物品的加权公平性概念

Weighted Fairness Notions for Indivisible Items Revisited

Mithun Chakraborty, Erel Segal-Halevi, Warut Suksompong

AI总结:

针对加权代理人的不可分割物品分配,本文提出加权无嫉妒性与比例性的参数化松弛族及加权最大最小份额公平性,分析其可满足性、最优近似和概念间蕴含关系。

摘要:

我们重新审视了当代理人具有代表其应得权益的不同权重时,公平分配不可分割物品的设定。首先,我们提出了加权无嫉妒性的参数化松弛族,以及加权比例性的同类参数化松弛族;这些参数表明应给予较小权重还是较大权重的代理人更高优先级。我们证明这些族中的每个概念总能被满足,但任意两个概念未必能同时实现。随后,我们引入了最大最小份额公平性的直观加权推广,并确立了可保证的最优近似。此外,我们刻画了本文与先前工作提出的各种加权公平性概念之间的蕴含关系,并将它们与分摊问题中的下限和上限配额公理联系起来。

英文摘要:

We revisit the setting of fairly allocating indivisible items when agents have different weights representing their entitlements. First, we propose a parameterized family of relaxations for weighted envy-freeness and the same for weighted proportionality; the parameters indicate whether smaller-weight or larger-weight agents should be given a higher priority. We show that each notion in these families can always be satisfied, but any two cannot necessarily be fulfilled simultaneously. We then introduce an intuitive weighted generalization of maximin share fairness and establish the optimal approximation of it that can be guaranteed. Furthermore, we characterize the implication relations between the various weighted fairness notions introduced in this and prior work, and relate them to the lower and upper quota axioms from apportionment.

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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