217 citations · 331 across the 28 of their papers we have counts for
4 papers · 1 filter
First Order Methods beyond Convexity and Lipschitz Gradient Continuity with Applications to Quadratic Inverse Problems
Jérôme Bolte, Shoham Sabach, Marc Teboulle +1
We focus on nonconvex and nonsmooth minimization problems with a composite objective, where the differentiable part of the objective is freed from the usual and restrictive global…
On Fienup Methods for Regularized Phase Retrieval
Edouard Pauwels, Amir Beck, Yonina C. Eldar +1
Alternating minimization, or Fienup methods, have a long history in phase retrieval. We provide new insights related to the empirical and theoretical analysis of these algorithms w…
A First Order Method for Solving Convex Bi-Level Optimization Problems
Shoham Sabach, Shimrit Shtern
In this paper we study convex bi-level optimization problems for which the inner level consists of minimization of the sum of smooth and nonsmooth functions. The outer level aims a…
Inertial Proximal Alternating Linearized Minimization (iPALM) for Nonconvex and Nonsmooth Problems
Thomas Pock, Shoham Sabach
In this paper we study nonconvex and nonsmooth optimization problems with semi-algebraic data, where the variables vector is split into several blocks of variables. The problem con…