Search Results for author: Christophe Kervazo

Found 5 papers, 2 papers with code

Unrolling PALM for sparse semi-blind source separation

1 code implementation ICLR 2022 Mohammad Fahes, Christophe Kervazo, Jérôme Bobin, Florence Tupin

Sparse Blind Source Separation (BSS) has become a well established tool for a wide range of applications - for instance, in astrophysics and remote sensing.

blind source separation

Smoothed Separable Nonnegative Matrix Factorization

1 code implementation11 Oct 2021 Nicolas Nadisic, Nicolas Gillis, Christophe Kervazo

More recently, Bhattacharyya and Kannan (ACM-SIAM Symposium on Discrete Algorithms, 2020) proposed an algorithm for learning a latent simplex (ALLS) that relies on the assumption that there is more than one nearby data point to each vertex.

Hyperspectral Unmixing Single Particle Analysis

Successive Nonnegative Projection Algorithm for Linear Quadratic Mixtures

no code implementations8 Dec 2020 Christophe Kervazo, Nicolas Gillis, Nicolas Dobigeon

In this work, we tackle the problem of hyperspectral (HS) unmixing by departing from the usual linear model and focusing on a Linear-Quadratic (LQ) one.

Heuristics for Efficient Sparse Blind Source Separation

no code implementations17 Dec 2018 Christophe Kervazo, Jerome Bobin, Cecile Chenot

Sparse Blind Source Separation (sparse BSS) is a key method to analyze multichannel data in fields ranging from medical imaging to astrophysics.

blind source separation

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