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arXiv 1812.01577cs.GT
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基于对偶的贝叶斯机制设计统一方法

A Duality-Based Unified Approach to Bayesian Mechanism Design

Yang Cai, Nikhil R. Devanur, S. Matthew Weinberg

摘要:

我们提供了贝叶斯机制设计的许多最新发展的统一视图,包括Cai等人的黑箱约简。[CDW 13 b],添加剂买家的简单拍卖[HN 12],以及单位需求投标人的标价机制[CHK 07]。此外,我们表明,通过同一个镜头观看这三个以前不相交的工作线也会导致新的发展。首先,我们提供了一个二元框架贝叶斯机制设计,自然容纳多个代理和任意的目标/可行性约束。利用这一点,我们证明了无论是张贴价格机制还是具有每个投标人入场费的Vickrey-Clarke-Groves拍卖,只要买家是单位需求或可加性,都可以实现贝叶斯激励兼容机制可实现的最佳收入的常数因子,统一了Chawla等人以前的突破。[CHMS 10]和Yao [Yao 15],以及提高两个近似比(分别从30提高到24和从69提高到8)。最后,我们表明,这种观点也导致改善结构特征的蔡等人。框架。

英文摘要:

We provide a unified view of many recent developments in Bayesian mechanism design, including the black-box reductions of Cai et al. [CDW13b], simple auctions for additive buyers [HN12], and posted-price mechanisms for unit-demand bidders [CHK07]. Additionally, we show that viewing these three previously disjoint lines of work through the same lens leads to new developments as well. First, we provide a duality framework for Bayesian mechanism design, which naturally accommodates multiple agents and arbitrary objectives/feasibility constraints. Using this, we prove that either a posted-price mechanism or the Vickrey-Clarke-Groves auction with per-bidder entry fees achieves a constant-factor of the optimal revenue achievable by a Bayesian Incentive Compatible mechanism whenever buyers are unit-demand or additive, unifying previous breakthroughs of Chawla et al. [CHMS10] and Yao [Yao15], and improving both approximation ratios (from 30 to 24 and 69 to 8, respectively). Finally, we show that this view also leads to improved structural characterizations in the Cai et al. framework.

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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