353 citations · 1.8k across the 69 of their papers we have counts for
5 papers · 1 filter
Coherence-based Partial Exact Recovery Condition for OMP/OLS
Cedric Herzet, Charles Soussen, Jerome Idier +1
We address the exact recovery of the support of a k-sparse vector with Orthogonal Matching Pursuit (OMP) and Orthogonal Least Squares (OLS) in a noiseless setting. We consider the…
Local stability and robustness of sparse dictionary learning in the presence of noise
Rodolphe Jenatton, Rémi Gribonval, Francis Bach
A popular approach within the signal processing and machine learning communities consists in modelling signals as sparse linear combinations of atoms selected from a learned dictio…
Nearfield Acoustic Holography using sparsity and compressive sampling principles
Gilles Chardon, Laurent Daudet, Antoine Peillot +3
Regularization of the inverse problem is a complex issue when using Near-field Acoustic Holography (NAH) techniques to identify the vibrating sources. This paper shows that, for co…
Greedy-Like Algorithms for the Cosparse Analysis Model
Raja Giryes, Sangnam Nam, Michael Elad +2
The cosparse analysis model has been introduced recently as an interesting alternative to the standard sparse synthesis approach. A prominent question brought up by this new constr…
Constrained Overcomplete Analysis Operator Learning for Cosparse Signal Modelling
Mehrdad Yaghoobi, Sangnam Nam, Remi Gribonval +1
We consider the problem of learning a low-dimensional signal model from a collection of training samples. The mainstream approach would be to learn an overcomplete dictionary to pr…