Search Results for author: Zaïd Harchaoui

Found 5 papers, 0 papers with code

A Fast, Consistent Kernel Two-Sample Test

no code implementations NeurIPS 2009 Arthur Gretton, Kenji Fukumizu, Zaïd Harchaoui, Bharath K. Sriperumbudur

A kernel embedding of probability distributions into reproducing kernel Hilbert spaces (RKHS) has recently been proposed, which allows the comparison of two probability measures P and Q based on the distance between their respective embeddings: for a sufficiently rich RKHS, this distance is zero if and only if P and Q coincide.

Vocal Bursts Valence Prediction

Kernel Change-point Analysis

no code implementations NeurIPS 2008 Zaïd Harchaoui, Eric Moulines, Francis R. Bach

Change-point analysis of an (unlabelled) sample of observations consists in, first, testing whether a change in the distribution occurs within the sample, and second, if a change occurs, estimating the change-point instant after which the distribution of the observations switches from one distribution to another different distribution.

Two-sample testing

DIFFRAC: a discriminative and flexible framework for clustering

no code implementations NeurIPS 2007 Francis R. Bach, Zaïd Harchaoui

We present a novel linear clustering framework (Diffrac) which relies on a linear discriminative cost function and a convex relaxation of a combinatorial optimization problem.

Clustering Combinatorial Optimization +1

Testing for Homogeneity with Kernel Fisher Discriminant Analysis

no code implementations NeurIPS 2007 Moulines Eric, Francis R. Bach, Zaïd Harchaoui

This provides us with a consistent nonparametric test statistic, for which we derive the asymptotic distribution under the null hypothesis.

Catching Change-points with Lasso

no code implementations NeurIPS 2007 Céline Levy-Leduc, Zaïd Harchaoui

We propose a new approach for dealing with the estimation of the location of change-points in one-dimensional piecewise constant signals observed in white noise.

Variable Selection

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