Numerical Study of Random Correlation Matrices : Finite-Size Effects
Numerical Study of Random Correlation Matrices : Finite-Size Effects
复制标题
随机相关矩阵的数值研究:有限尺寸效应
DOI:
10.1007/978-3-642-22194-1_55
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发表时间:
2011
期刊:
影响因子:
--
通讯作者:
Yuta Arai
中科院分区:
文献类型:
--
作者:
日比谷孟俊;佐藤悟;内田保廣;Yuta Arai
We report the numerical calculations of the distribution of maximal eigenvalue for various size of random correlation matrices. Such an extensive study enables us to work out empirical formulas for the average and standard deviation of the maximal eigenvalue, which are accurate in a wide range of parameters. As an application of those formulas, we propose a criterion to single out statistically meaningful correlations in the principal component analysis. The new criterion incorporates finite-size effects into the current method based on the random matrix theory, which gives the exact results in the infinite-size limit.