A Moment-Based Test for Homogeneity in Finite Mixture Models

A Moment-Based Test for Homogeneity in Finite Mixture Models
复制标题

有限混合模型中基于矩的均匀性检验

DOI:
10.1080/03610920802439153
复制
发表时间:
2009-04
影响因子:
0.8
通讯作者:
张三国
张三国
中科院分区:
数学4区
文献类型:
--
作者:
张三国

文献摘要

参考文献

被引文献

相似文献

这项研究是关于检验有限混合模型中的同质性。在文献中,这个问题的解决方案通常包括首先确定参数的可识别性,然后检验数据是否来自单一分布的假设。
This research is about testing homogeneity in finite mixture models. In literature, solutions to this problem normally involve first establishing the identifiability of parameters, then testing the hypothesis whether the data come from a single distribution or a mixture of distributions. We propose a moment-based test without getting into the issue of parameter estimability. Our simulations demonstrate that the power of our test is comparable to LRT, C(α) test, and bootstrap test with the additional advantage that our test always controls the Type I error rate within the nominal α level for the normal case. We demonstrate our test on a real data set to identify potential predictive biomarkers for hospitalization in hemodialysis patients.
DOI: 10.1016/0378-3758(94)00006-h
发表时间: 1995-01-01
影响因子: 0.9
作者:
CHERNOFF, H;LANDER, E
通讯作者: LANDER, E
DOI: 10.1016/j.jmva.2005.03.011
发表时间: 2006-02
影响因子: 1.6
作者:
Yongsong Qin;Bruce Smith
通讯作者: Yongsong Qin;Bruce Smith
DOI: 10.1098/rspl.1893.0079
发表时间: --
影响因子: --
作者:
K. Pearson
通讯作者: K. Pearson
DOI: 10.1214/aos/1176347138
发表时间: 1989-06
影响因子: 4.5
作者:
B. Lindsay
通讯作者: B. Lindsay
DOI: 10.1214/aos/1017938921
发表时间: 1999-08
影响因子: 4.5
作者:
D. Dacunha-Castelle;E. Gassiat
通讯作者: D. Dacunha-Castelle;E. Gassiat