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arXiv 2508.08045cs.GT
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具有最大变体成本的受约束分布式异构双设施选址问题

Constrained Distributed Heterogeneous Two-Facility Location Problems with Max-Variant Cost

Xinru Xu, Wenjing Liu, Qizhi Fang

AI总结:

本文研究受约束的分布式异构双设施选址问题,提出确定性防策略分布式机制,在四种社会目标下实现了常数级的扭曲上下界。

摘要:

我们研究受约束的分布式异构双设施选址问题,其中一组在实数轴上具有私有位置的智能体被划分为不相交的组。这里的约束意味着设施只能建在一个给定的候选位置多重集中,且每个候选位置最多只能建造一个设施。给定这两个设施的位置,智能体的成本是其位置到最远设施的距离(称为最大变体)。我们的目标是设计防策略的分布式机制,激励所有智能体真实报告其位置,并近似优化某些社会目标。分布式机制包含两个步骤:对于每个组,机制仅根据该组内智能体报告的位置选择两个候选位置作为该组的代表;然后,它在所有代表中输出两个设施位置。我们聚焦于一类确定性防策略分布式机制,并在四种社会目标下分析扭曲度的上界和下界:平均-平均成本(各组内智能体平均个体成本的平均值)、最大-最大成本(所有智能体中的最大个体成本)、平均-最大成本(各组内智能体最大个体成本的平均值)和最大-平均成本(各组内智能体平均个体成本的最大值)。在这四种社会目标下,我们获得了常数级的扭曲上下界。

英文摘要:

We study a constrained distributed heterogeneous two-facility location problem, where a set of agents with private locations on the real line are divided into disjoint groups. The constraint means that the facilities can only be built in a given multiset of candidate locations and at most one facility can be built at each candidate location. Given the locations of the two facilities, the cost of an agent is the distance from her location to the farthest facility (referred to as max-variant). Our goal is to design strategyproof distributed mechanisms that can incentivize all agents to truthfully report their locations and approximately optimize some social objective. A distributed mechanism consists of two steps: for each group, the mechanism chooses two candidate locations as the representatives of the group based only on the locations reported by agents therein; then, it outputs two facility locations among all the representatives. We focus on a class of deterministic strategyproof distributed mechanisms and analyze upper and lower bounds on the distortion under the Average-of-Average cost (average of the average individual cost of agents in each group), the Max-of-Max cost (maximum individual cost among all agents), the Average-of-Max cost (average of the maximum individual cost among all agents in each group) and the Max-of-Average cost (maximum of the average individual cost of all agents in each group). Under four social objectives, we obtain constant upper and lower distortion bounds.

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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