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arXiv 2507.15631stat.ME

一种利用方向信息控制错误发现率的强效程序

A powerful procedure that controls the false discovery rate with directional information

Zhaoyang Tian, Kun Liang, Pengfei Li

AI总结:

本文提出signed-knockoff程序,利用检验统计量的符号方向信息在有限样本中控制FDR,并通过模拟和实际应用证明其功效优势。

摘要:

在遗传学的许多多重检验应用中,检验统计量的符号提供了有用的方向信息,例如基因在两种实验条件之间是潜在上调还是下调。然而,大多数现有的控制错误发现率(FDR)的程序都是基于p值的,忽略了这类方向信息。我们提出了一种新程序,即signed-knockoff程序,以利用方向信息并在有限样本中控制FDR。我们通过模拟研究和两个实际应用展示了该程序的功效优势。

英文摘要:

In many multiple testing applications in genetics, the signs of test statistics provide useful directional information, such as whether genes are potentially up- or down-regulated between two experimental conditions. However, most existing procedures that control the false discovery rate (FDR) are $p$-value based and ignore such directional information. We introduce a novel procedure, the signed-knockoff procedure, to utilize the directional information and control the FDR in finite samples. We demonstrate the power advantage of our procedure through simulation studies and two real applications.

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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