arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2010.09640cs.GT
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具有候选选址的设施选址对策的机制设计

Mechanism Design for Facility Location Games with Candidate Locations

Zhongzheng Tang, Chenhao Wang, Mengqi Zhang, Yingchao Zhao

摘要:

从机制设计的角度研究了具有候选选址的设施选址博弈。假设有n个智能体位于度量空间中,其位置是他们的私人信息,以及一组用于建造设施的候选位置。当局计划在这些候选人中建立一些同质的设施来为代理人服务,代理人承担的成本等于到最近设施的距离。我们的目标是设计机制,使代理之间的总/最大成本最小化。对于最大费用目标下的单设施问题,给出了一种确定性的3-近似群防策略机制,并证明了任何确定性(或随机化)防策略机制的近似比都不能大于3(或2).对于同一直线上的两设施问题,给出了一种匿名的确定性群体防策略机制,即总费用目标为(2n-3)-近似,最大费用目标为3-近似。我们还提供(渐近)紧的近似比的下限。

英文摘要:

We study the facility location games with candidate locations from a mechanism design perspective. Suppose there are n agents located in a metric space whose locations are their private information, and a group of candidate locations for building facilities. The authority plans to build some homogeneous facilities among these candidates to serve the agents, who bears a cost equal to the distance to the closest facility. The goal is to design mechanisms for minimizing the total/maximum cost among the agents. For the single-facility problem under the maximum-cost objective, we give a deterministic 3-approximation group strategy-proof mechanism, and prove that no deterministic (or randomized) strategy-proof mechanism can have an approximation ratio better than 3 (or 2). For the two-facility problem on a line, we give an anonymous deterministic group strategy-proof mechanism that is (2n-3)-approximation for the total-cost objective, and 3-approximation for the maximum-cost objective. We also provide (asymptotically) tight lower bounds on the approximation ratio.

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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