On the Use of Random Forest for Two-Sample Testing

DOI10.48550/ARXIV.1903.06287arXiv1903.06287MaRDI QIDQ126728

Author name not available (Why is that?)

Publication date: 14 March 2019

Abstract: Following the line of classification-based two-sample testing, tests based on the Random Forest classifier are proposed. The developed tests are easy to use, require almost no tuning, and are applicable for any distribution on $mathbb{R}^d$. Furthermore, the built-in variable importance measure of the Random Forest gives potential insights into which variables make out the difference in distribution. An asymptotic power analysis for the proposed tests is developed. Finally, two real-world applications illustrate the usefulness of the introduced methodology. To simplify the use of the method, the R-package "hypoRF" is provided.

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