A robust method for large-scale multiple hypotheses testing.
A robust method for large-scale multiple hypotheses testing.
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DOI:
10.1002/bimj.200900177
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发表时间:
2010-04
影响因子:
1.7
通讯作者:
Tsui, Kam-Wah
中科院分区:
文献类型:
--
作者:
Han, Seungbong;Andrei, Adin-Cristian;Tsui, Kam-Wah
When drawing large scale simultaneous inference, such as in genomics and imaging problems, multiplicity adjustments should be made, since, otherwise, one would be faced with an inflated type I error. Numerous methods are available to estimate the proportion of true null hypotheses π0, among a large number of hypotheses tested. Many methods implicitly assume that the π0 is large, that is, close to 1. However, in practice, mid-range π0 values are frequently encountered and many of the widely-used methods tend to produce highly variable or biased estimates of π0. As a remedy in such situations, we propose a hierarchical Bayesian model (HBM) that produces an estimator of π0 that exhibits considerably less bias and is more stable. Simulation studies seem indicative of good method performance even when low to moderate correlation exists among test statistics. Method performance is assessed in simulated settings and its practical usefulness is illustrated in an application to type II diabetes study.
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影响因子:
2.1
作者:
Newton, MA;Noueiry, A;Ahlquist, P
通讯作者:
Ahlquist, P
DOI:
10.1111/j.1467-9868.2004.00439.x
发表时间:
2004-01-01
影响因子:
5.8
作者:
Storey, JD;Taylor, JE;Siegmund, D
通讯作者:
Siegmund, D
DOI:
10.1111/1467-9868.00346
发表时间:
2002-01-01
影响因子:
5.8
作者:
Storey, JD
通讯作者:
Storey, JD
DOI:
10.1111/j.2517-6161.1995.tb02031.x
发表时间:
1995-01-01
影响因子:
5.8
作者:
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通讯作者:
HOCHBERG, Y
影响因子:
5.8
作者:
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通讯作者:
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