activity
20092023
most citedThe Cosparse Analysis Model and Algorithms

353 citations · 1.8k across the 69 of their papers we have counts for

collaborators
Showing 2019Show all

8 papers · 1 filter

eess.SP2019

Fast Optical System Identification by Numerical Interferometry

Sidharth Gupta, Rémi Gribonval, Laurent Daudet +1

We propose a numerical interferometry method for identification of optical multiply-scattering systems when only intensity can be measured. Our method simplifies the calibration of…

stat.ML2019★ 18 cited

Learning with minibatch Wasserstein : asymptotic and gradient properties

Kilian Fatras, Younes Zine, Rémi Flamary +2

Optimal transport distances are powerful tools to compare probability distributions and have found many applications in machine learning. Yet their algorithmic complexity prevents…

cs.CV2019★ 65 cited

And the Bit Goes Down: Revisiting the Quantization of Neural Networks

Pierre Stock, Armand Joulin, Rémi Gribonval +2

In this paper, we address the problem of reducing the memory footprint of convolutional network architectures. We introduce a vector quantization method that aims at preserving the…

cs.LG2019★ 7 cited

Don't take it lightly: Phasing optical random projections with unknown operators

Sidharth Gupta, Rémi Gribonval, Laurent Daudet +1

In this paper we tackle the problem of recovering the phase of complex linear measurements when only magnitude information is available and we control the input. We are motivated b…

math.FA2019★ 30 cited

Approximation spaces of deep neural networks

Rémi Gribonval, Gitta Kutyniok, Morten Nielsen +1

We study the expressivity of deep neural networks. Measuring a network's complexity by its number of connections or by its number of neurons, we consider the class of functions for…

cs.IT2019★ 11 cited

When does OMP achieve exact recovery with continuous dictionaries?

Clément Elvira, Rémi Gribonval, Charles Soussen +1

This paper presents new theoretical results on sparse recovery guarantees for a greedy algorithm, Orthogonal Matching Pursuit (OMP), in the context of continuous parametric diction…

cs.CV2019★ 3 cited

Equi-normalization of Neural Networks

Pierre Stock, Benjamin Graham, Rémi Gribonval +1

Modern neural networks are over-parametrized. In particular, each rectified linear hidden unit can be modified by a multiplicative factor by adjusting input and output weights, wit…

math.NA2019

Jointly Low-Rank and Bisparse Recovery: Questions and Partial Answers

Simon Foucart, Rémi Gribonval, Laurent Jacques +1

We investigate the problem of recovering jointly -rank and -bisparse matrices from as few linear measurements as possible, considering arbitrary measurements as well as rank-…