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- W4386044369 abstract "This paper is concerned with minimax conditional independence testing. In contrast to some previous works on the topic, which use the total variation distance to separate the null from the alternative, here we use the Wasserstein distance. In addition, we impose Wasserstein smoothness conditions which on bounded domains are weaker than the corresponding total variation smoothness imposed, for instance, by Neykov et al. [2021]. This added flexibility expands the distributions which are allowed under the null and the alternative to include distributions which may contain point masses for instance. We characterize the optimal rate of the critical radius of testing up to logarithmic factors. Our test statistic which nearly achieves the optimal critical radius is novel, and can be thought of as a weighted multi-resolution version of the U-statistic studied by Neykov et al. [2021]." @default.
- W4386044369 created "2023-08-22" @default.
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- W4386044369 date "2023-08-16" @default.
- W4386044369 modified "2023-09-25" @default.
- W4386044369 title "Nearly Minimax Optimal Wasserstein Conditional Independence Testing" @default.
- W4386044369 doi "https://doi.org/10.48550/arxiv.2308.08672" @default.
- W4386044369 hasPublicationYear "2023" @default.
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