Department of Mathematics
Two-sample Behrens-Fisher problem for high-dimensional data
© 2015, Institute of Statistical Science. All rights reserved. This article is concerned with the two-sample Behrens-Fisher problem in high-dimensional settings. A test is proposed that is scale-invariant, asymptotically normal under certain mild conditions, and the dimensionality is allowed to grow in the rate, respectively, from square to cube of the sample size in different scenarios. We explain the necessity of bias correction for existing scale-invariant tests. We also give some examples to show the advantage of the scale-invariant test over scale-variant tests when variances of the two samples are different.
Asymptotic normality, Behrens-Fisher problem, High-dimensional data, Large-p-small-n, Two-sample test
Source Publication Title
Academia Sinica, Institute of Statistical Science
Feng, Long, Changliang Zou, Zhaojun Wang, and Lixing Zhu. "Two-sample Behrens-Fisher problem for high-dimensional data." Statistica Sinica 25.4 (2015): 1297-1312.