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arXiv 1406.6569math.STstat.TH
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关于不等协方差阵高维均值向量相等性的检验

On testing the equality of high dimensional mean vectors with unequal covariance matrices

Jiang Hu, Zhidong Bai, Chen Wang, Wei Wang

摘要:

本文研究了具有不等协方差阵的高维均值向量的相等性检验问题。这是多元统计分析中最重要的问题之一,文献中提出了各种检验方法。受\citet{BaiS96E}和\cite{ChenQ10T}的启发,引入了一个检验统计量,给出了原假设和备择假设下的无症状分布.此外,它是比较与最近提出的\cite{SrivastavaK13Ta}的检验统计量。结果表明,我们的检验统计量表现得更好,特别是在大尺寸的情况下。

英文摘要:

In this article, we focus on the problem of testing the equality of several high dimensional mean vectors with unequal covariance matrices. This is one of the most important problem in multivariate statistical analysis and there have been various tests proposed in the literature. Motivated by \citet{BaiS96E} and \cite{ChenQ10T}, a test statistic is introduced and the asymptomatic distributions under the null hypothesis as well as the alternative hypothesis are given. In addition, it is compared with a test statistic recently proposed by \cite{SrivastavaK13Ta}. It is shown that our test statistic performs much better especially in the large dimensional case.

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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