Nonparametric Independence Tests: Space Partitioning and Kernel Approaches
Abstract
Three simple and explicit procedures for testing the independence of two multi-dimensional random variables are described. Two of the associated test statistics ( L _1, log-likelihood) are defined when the empirical distribution of the variables is restricted to finite partitions. A third test statistic is defined as a kernel-based independence measure. All tests reject the null hypothesis of independence if the test statistics become large. The large deviation and limit distribution properties of all three test statistics are given. Following from these results, distribution-free strong consistent tests of independence are derived, as are asymptotically α -level tests. The performance of the tests is evaluated experimentally on benchmark data.
Cite
Text
Gretton and Györfi. "Nonparametric Independence Tests: Space Partitioning and Kernel Approaches." International Conference on Algorithmic Learning Theory, 2008. doi:10.1007/978-3-540-87987-9_18Markdown
[Gretton and Györfi. "Nonparametric Independence Tests: Space Partitioning and Kernel Approaches." International Conference on Algorithmic Learning Theory, 2008.](https://mlanthology.org/alt/2008/gretton2008alt-nonparametric/) doi:10.1007/978-3-540-87987-9_18BibTeX
@inproceedings{gretton2008alt-nonparametric,
title = {{Nonparametric Independence Tests: Space Partitioning and Kernel Approaches}},
author = {Gretton, Arthur and Györfi, László},
booktitle = {International Conference on Algorithmic Learning Theory},
year = {2008},
pages = {183-198},
doi = {10.1007/978-3-540-87987-9_18},
url = {https://mlanthology.org/alt/2008/gretton2008alt-nonparametric/}
}