activity
20062022
most citedThe closest elastic tensor of arbitrary symmetry to an elasticity tensor of lower symmetry

247 citations · 289 across the 7 of their papers we have counts for

collaborators

7 papers

cs.LG2022

Implicit Regularization with Polynomial Growth in Deep Tensor Factorization

Kais Hariz, Hachem Kadri, Stéphane Ayache +2

We study the implicit regularization effects of deep learning in tensor factorization. While implicit regularization in deep matrix and 'shallow' tensor factorization via linear an…

math.DG2021

Geometries on the cone of positive-definite matrices derived from the power potential and their relation to the power means

Nadia Chouaieb, Bruno Iannazzo, Maher Moakher

We study a Riemannian metric on the cone of symmetric positive-definite matrices obtained from the Hessian of the power potential function . We give explicit expre…

math.NA2017

A nonstandard higher-order variational model to speckle noise removal and thin-structure detection

Hamdi Houichet, Anis Theljani, Maher Moakher +1

In this work, we propose a multiscale approach for a nonstandard higher-order PDE based on the -Kirchhoff energy. First, we consider a topological gradient approach for a…

cs.IT2016

Diagonality Measures of Hermitian Positive-Definite Matrices with Application to the Approximate Joint Diagonalization Problem

Khaled Alyani, Marco Congedo, Maher Moakher

In this paper, we introduce properly-invariant diagonality measures of Hermitian positive-definite matrices. These diagonality measures are defined as distances or divergences betw…

math.DG2015★ 41 cited

Approximate Joint Diagonalization and Geometric Mean of Symmetric Positive Definite Matrices

Marco Congedo, Bijan Afsari, Alexandre Barachant +1

We explore the connection between two problems that have arisen independently in the signal processing and related fields: the estimation of the geometric mean of a set of symmetri…

cs.CV2007★ 1 cited

Riemannian level-set methods for tensor-valued data

Mourad Zerai, Maher Moakher

We present a novel approach for the derivation of PDE modeling curvature-driven flows for matrix-valued data. This approach is based on the Riemannian geometry of the manifold of S…