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A Generalized False Discovery Rate in Microarray Studies by Moonsu Kang; Heuiju Chun is a Mathematics article available to read on EtoBox.

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## a b s t r a c t The problem of identifying differentially expressed genes is considered in a microarray experiment. This motivates us to involve an appropriate multiple testing setup to high dimensional and low sample size testing problems in highly nonstandard setups. Familywise error rate (FWER) is too conservative to control the type I error, whereas a less conservative false discovery rate has received considerable attention in a wide variety of research areas such as genomics and large biological systems. Recently, a less conservative method than FDR, the k-FDR, which generalizes the FDR has been proposed by . Most of the current FDR procedures assume restrictive dependence structures, resulting in being less reliable. The purpose of this paper is to address these very large multiplicity problems by adopting a proposed k-FDR controlling procedure under suitable dependence structures and based on a Poisson distributional approximation in a unified framework. We compare the performance of the proposed k-FDR procedure with that of other FDR controlling procedures, with an illustration of the leukemia microarray study of and simulated data. For power consideration, different F

Who reads A Generalized False Discovery Rate in Microarray Studies?

Author

Moonsu Kang; Heuiju Chun

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0167-9473)

Published

2011

Language

EN

Field

Mathematics (Physical Sciences)