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arXiv 1111.5472cs.GT
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重视隐私的代理的真实机制

Truthful Mechanisms for Agents that Value Privacy

Yiling Chen, Stephen Chong, Ian A. Kash, Tal Moran, Salil Vadhan

摘要:

最近的工作已经构建了既真实又有差异的私人经济机制。在这些机制中,隐私与真实性被分开处理;它不被纳入玩家的效用函数中(在某些情况下,这样做会导致不真实性)。在这项工作中,我们提出了一个新的,一般的方式来模拟隐私的球员的效用函数。具体地,我们仅假设如果结果$o$具有玩家$i$的任何报告将以大致相同的概率导致$o$的属性,则$o$对玩家$i$具有小的隐私成本。我们给出了三种机制,是真实的隐私建模:两个候选人之间的选举,一个离散版本的设施选址问题,和一般的社会选择问题与离散的效用(通过VCG-样的机制)。随着参与者$n$数量的增加,我们的机制实现的社会福利接近最优(作为$n$的一部分)。

英文摘要:

Recent work has constructed economic mechanisms that are both truthful and differentially private. In these mechanisms, privacy is treated separately from the truthfulness; it is not incorporated in players' utility functions (and doing so has been shown to lead to non-truthfulness in some cases). In this work, we propose a new, general way of modelling privacy in players' utility functions. Specifically, we only assume that if an outcome $o$ has the property that any report of player $i$ would have led to $o$ with approximately the same probability, then $o$ has small privacy cost to player $i$. We give three mechanisms that are truthful with respect to our modelling of privacy: for an election between two candidates, for a discrete version of the facility location problem, and for a general social choice problem with discrete utilities (via a VCG-like mechanism). As the number $n$ of players increases, the social welfare achieved by our mechanisms approaches optimal (as a fraction of $n$).

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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