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arXiv 2202.04258stat.MLcs.LG
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基于Sinkhorn不确定集的稳健假设检验的数据驱动方法

A Data-Driven Approach to Robust Hypothesis Testing Using Sinkhorn Uncertainty Sets

Georgia Institute of Technology(佐治亚理工学院)

Jie Wang, Yao Xie

摘要:

小样本情形下的假设检验是一个具有重要实际意义的问题。在本文中,我们研究了强大的假设检验问题,在数据驱动的方式,我们寻求最坏情况下的检测器分布的不确定性集的经验分布为中心的样本使用Sinkhorn距离。与Wasserstein鲁棒性检验相比,该方法在训练样本之外支持相应的最不利分布,从而提供了一种更灵活的检测器。在合成数据集和真实数据集上进行了各种数值实验,以验证我们所提出的方法的竞争力。

英文摘要:

Hypothesis testing for small-sample scenarios is a practically important problem. In this paper, we investigate the robust hypothesis testing problem in a data-driven manner, where we seek the worst-case detector over distributional uncertainty sets centered around the empirical distribution from samples using Sinkhorn distance. Compared with the Wasserstein robust test, the corresponding least favorable distributions are supported beyond the training samples, which provides a more flexible detector. Various numerical experiments are conducted on both synthetic and real datasets to validate the competitive performances of our proposed method.

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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