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arXiv 2302.00264cs.GT
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最大化最小股份保证的下界

On Lower Bounds for Maximin Share Guarantees

Halvard Hummel

摘要:

我们研究的问题,公平地分配一组不可分割的项目,一组代理商与添加剂的估值。最近,Feige等人。(WINE'21)证明了最大最小份额(MMS)分配存在于所有具有$n$代理且不超过$n + 5$项的实例。此外,他们证明了对于具有$3$代理和至少$9$项或$n \ge 4$代理和至少$3n + 3$项的实例,不能保证MMS分配存在。在这项工作中,我们缩小这些上限和下限之间的差距,保证存在MMS分配。我们证明,对于任何整数$c > 0$,存在一些代理$n_c$,这样的MMS分配存在的任何实例与$n \ge n_c$代理和至多$n + c$项目,其中$n_c \le \lfloor 0.6597^c \cdot c!\rfloor$分配货物和$n_c \le \lfloor 0.7838^c \cdot c!\rfloor$家务。此外,我们表明,对于$n \neq 3$代理商,所有实例与$n + 6$商品有MMS分配。

英文摘要:

We study the problem of fairly allocating a set of indivisible items to a set of agents with additive valuations. Recently, Feige et al. (WINE'21) proved that a maximin share (MMS) allocation exists for all instances with $n$ agents and no more than $n + 5$ items. Moreover, they proved that an MMS allocation is not guaranteed to exist for instances with $3$ agents and at least $9$ items, or $n \ge 4$ agents and at least $3n + 3$ items. In this work, we shrink the gap between these upper and lower bounds for guaranteed existence of MMS allocations. We prove that for any integer $c > 0$, there exists a number of agents $n_c$ such that an MMS allocation exists for any instance with $n \ge n_c$ agents and at most $n + c$ items, where $n_c \le \lfloor 0.6597^c \cdot c!\rfloor$ for allocation of goods and $n_c \le \lfloor 0.7838^c \cdot c!\rfloor$ for chores. Furthermore, we show that for $n \neq 3$ agents, all instances with $n + 6$ goods have an MMS allocation.

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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