arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2005.03095cs.GT
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异构设施选址博弈

Heterogeneous Facility Location Games

Eleftherios Anastasiadis, Argyrios Deligkas

摘要:

我们研究异质$k$ -设施选址博弈。在此模型中,存在$k$设施,其中每个设施用于不同的目的。因此,代理人对设施的偏好可以任意变化。我们的目标是设计策略证明机制,将设施的方式,以最大限度地提高最小效用的代理。对于$k=1$,如果代理的位置是已知的,我们证明了该机制,将设施的最佳位置是策略证明。对于$k \geq 2$,我们证明了没有最佳的策略证明机制,确定性或随机化,即使当$k=2$只有两个代理与已知的位置,和设施必须放置在线段。我们推导出确定性和随机策略证明机制的不可逼近性界限。最后,我们专注于线段,并提供策略证明机制,实现常数近似。我们所有的机制都很简单,沟通效率很高。作为一个副产品,我们表明,我们的一些机制可以用来实现其他目标的恒定因子近似的社会福利和幸福。

英文摘要:

We study heterogeneous $k$-facility location games. In this model there are $k$ facilities where each facility serves a different purpose. Thus, the preferences of the agents over the facilities can vary arbitrarily. Our goal is to design strategy proof mechanisms that place the facilities in a way to maximize the minimum utility among the agents. For $k=1$, if the agents' locations are known, we prove that the mechanism that places the facility on an optimal location is strategy proof. For $k \geq 2$, we prove that there is no optimal strategy proof mechanism, deterministic or randomized, even when $k=2$ there are only two agents with known locations, and the facilities have to be placed on a line segment. We derive inapproximability bounds for deterministic and randomized strategy proof mechanisms. Finally, we focus on the line segment and provide strategy proof mechanisms that achieve constant approximation. All of our mechanisms are simple and communication efficient. As a byproduct we show that some of our mechanisms can be used to achieve constant factor approximations for other objectives as the social welfare and the happiness.

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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