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arXiv 2103.00235cs.GT
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基于混合线性规划的改进的两样本收益保证

Improved Two Sample Revenue Guarantees via Mixed-Integer Linear Programming

Mete Şeref Ahunbay, Adrian Vetta

摘要:

我们研究了经验收益最大化(ERM)机制在单一物品,单一卖方,单一买方设置的性能。我们假设买方的估价是从规则分布$F$中得出的,并且卖方可以访问{ \em two}从$F$中独立抽取的样本。通过求解一类混合整数线性规划问题,证明了ERM机制至少能保证期望收益的$.5914$倍。使用这些MILP的解决方案,我们还表明,最坏情况下的ERM机制的效率是最多$.61035$倍的最佳收入。这些保证分别改进了[Daskalakis & Zampetakis,'20]的$.558$和$.642$的最佳已知下限和上限。

英文摘要:

We study the performance of the Empirical Revenue Maximizing (ERM) mechanism in a single-item, single-seller, single-buyer setting. We assume the buyer's valuation is drawn from a regular distribution $F$ and that the seller has access to {\em two} independently drawn samples from $F$. By solving a family of mixed-integer linear programs (MILPs), the ERM mechanism is proven to guarantee at least $.5914$ times the optimal revenue in expectation. Using solutions to these MILPs, we also show that the worst-case efficiency of the ERM mechanism is at most $.61035$ times the optimal revenue. These guarantees improve upon the best known lower and upper bounds of $.558$ and $.642$, respectively, of [Daskalakis & Zampetakis, '20].

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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