11 citations · 29 across the 15 of their papers we have counts for
3 papers · 1 filter
Stochastic Damped L-BFGS with Controlled Norm of the Hessian Approximation
Sanae Lotfi, Tiphaine Bonniot de Ruisselet, Dominique Orban +1
We propose a new stochastic variance-reduced damped L-BFGS algorithm, where we leverage estimates of bounds on the largest and smallest eigenvalues of the Hessian approximation to…
TriCG and TriMR: Two Iterative Methods for Symmetric Quasi-Definite Systems
Alexis Montoison, Dominique Orban
We introduce iterative methods named TriCG and TriMR for solving symmetric quasi-definite systems based on the orthogonal tridiagonalization process proposed by Saunders, Simon and…
Scaled Projected-Directions Methods with Application to Transmission Tomography
Guillaume Mestdagh, Yves Goussard, Dominique Orban
Statistical image reconstruction in X-Ray computed tomography yields large-scale regularized linear least-squares problems with nonnegativity bounds, where the memory footprint of…