735 citations · 2.6k across the 20 of their papers we have counts for
3 papers · 1 filter
Online algorithms for Nonnegative Matrix Factorization with the Itakura-Saito divergence
Augustin Lefèvre, Francis Bach, Cédric Févotte
Nonnegative matrix factorization (NMF) is now a common tool for audio source separation. When learning NMF on large audio databases, one major drawback is that the complexity in ti…
Structured Sparse Principal Component Analysis
Rodolphe Jenatton, Guillaume Obozinski, Francis Bach
We present an extension of sparse PCA, or sparse dictionary learning, where the sparsity patterns of all dictionary elements are structured and constrained to belong to a prespecif…
Testing for Homogeneity with Kernel Fisher Discriminant Analysis
Zaid Harchaoui, Francis Bach, Eric Moulines
We propose to investigate test statistics for testing homogeneity in reproducing kernel Hilbert spaces. Asymptotic null distributions under null hypothesis are derived, and consist…