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Kacper P Chwialkowski

2 accepted papers

2016

Interpretable Distribution Features with Maximum Testing Power

NeurIPS 2016oral

Two semimetrics on probability distributions are proposed, given as the sum of differences of expectations of analytic functions evaluated at spatial or frequency locations (i.e, features). The features are chosen so as to maximize the distinguishability of the distributions, by optimizing a lower b…

2015

Fast Two-Sample Testing with Analytic Representations of Probability Measures

NeurIPS 2015poster

We propose a class of nonparametric two-sample tests with a cost linear in the sample size. Two tests are given, both based on an ensemble of distances between analytic functions representing each of the distributions. The first test uses smoothed empirical characteristic functions to represent the…

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