arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2006.00178cs.GTcs.DM
收藏

关于几乎无嫉妒分配的个数

On the Number of Almost Envy-Free Allocations

Warut Suksompong

摘要:

无嫉妒是资源分配公平性的标准基准。由于它不能总是满足时,资源组成的不可分割的项目,即使有两个代理,放宽envy-freeness一个项目(EF 1)和envy-freeness任何项目(EFX)经常被认为是。我们建立严格的下限分配的数量满足这些基准的情况下,两个代理。特别地,虽然对于任何数量的项目可以存在少至两个EFX分配,但是EF 1分配的数量总是项目数量的指数。我们的研究结果适用于一个版本的顶点等周不等式的超立方体,并帮助解释这两个概念之间的鲁棒性方面的巨大差距。

英文摘要:

Envy-freeness is a standard benchmark of fairness in resource allocation. Since it cannot always be satisfied when the resource consists of indivisible items even when there are two agents, the relaxations envy-freeness up to one item (EF1) and envy-freeness up to any item (EFX) are often considered. We establish tight lower bounds on the number of allocations satisfying each of these benchmarks in the case of two agents. In particular, while there can be as few as two EFX allocations for any number of items, the number of EF1 allocations is always exponential in the number of items. Our results apply a version of the vertex isoperimetric inequality on the hypercube and help explain the large gap in terms of robustness between the two notions.

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。

↑