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arXiv 2007.02751stat.ME
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非高斯分量分析:测试信号子空间的维数

Non-Gaussian component analysis: testing the dimension of the signal subspace

Una Radojicic, Klaus Nordhausen

摘要:

降维是多元数据分析中的一种常用策略,它寻找一个包含所有后续分析所需的感兴趣特征的子空间。非高斯分量分析试图将数据分为非高斯部分(信号)和高斯部分(噪声)。我们将表明,同时使用两个散射泛函可以用于此目的,并建议一个自举测试来测试非高斯子空间的维数。然后,例如可以使用测试的顺序应用来估计信号维度。

英文摘要:

Dimension reduction is a common strategy in multivariate data analysis which seeks a subspace which contains all interesting features needed for the subsequent analysis. Non-Gaussian component analysis attempts for this purpose to divide the data into a non-Gaussian part, the signal, and a Gaussian part, the noise. We will show that the simultaneous use of two scatter functionals can be used for this purpose and suggest a bootstrap test to test the dimension of the non-Gaussian subspace. Sequential application of the test can then for example be used to estimate the signal dimension.

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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