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arXiv 2409.07142cs.GT
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带预测的随机策略性设施选址

Randomized Strategic Facility Location with Predictions

Eric Balkanski, Vasilis Gkatzelis, Golnoosh Shahkarami

AI总结:

本文研究带预测的随机策略性设施选址,探索随机化与不同预测类型对真实学习增强机制性能的影响,并为单维及欧几里得情形下最优平等主义社会成本的近似度提供上下界。

摘要:

在策略性设施选址问题中,一组代理在度量空间中报告其位置,目标是根据这些报告开设一个新设施,以最小化从代理到设施的聚合距离度量。然而,代理具有策略性,可能误报其位置以影响设施的选址,使其对自己有利。目标是设计真实机制,确保代理无法通过误报获益。该问题最近通过学习增强框架被重新审视,旨在超越最坏情况分析,并设计由(机器学习)预测增强的真实机制。先前工作的重点是确定性的、并带有关于最优设施位置预测的机制。在本文中,我们通过探索随机化的能力以及不同类型预测对真实学习增强机制性能的影响,提供了对该问题的更深入理解。我们研究了单维情形和欧几里得情形,并就最优平等主义社会成本的可实现近似度给出了上下界。

英文摘要:

In the strategic facility location problem, a set of agents report their locations in a metric space and the goal is to use these reports to open a new facility, minimizing an aggregate distance measure from the agents to the facility. However, agents are strategic and may misreport their locations to influence the facility's placement in their favor. The aim is to design truthful mechanisms, ensuring agents cannot gain by misreporting. This problem was recently revisited through the learning-augmented framework, aiming to move beyond worst-case analysis and design truthful mechanisms that are augmented with (machine-learned) predictions. The focus of this prior work was on mechanisms that are deterministic and augmented with a prediction regarding the optimal facility location. In this paper, we provide a deeper understanding of this problem by exploring the power of randomization as well as the impact of different types of predictions on the performance of truthful learning-augmented mechanisms. We study both the single-dimensional and the Euclidean case and provide upper and lower bounds regarding the achievable approximation of the optimal egalitarian social cost.

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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