2 papers
math.OC2024
Frank-Wolfe meets Shapley-Folkman: a systematic approach for solving nonconvex separable problems with linear constraints
Benjamin Dubois-Taine, Alexandre d'Aspremont
We consider separable nonconvex optimization problems under affine constraints. For these problems, the Shapley-Folkman theorem provides an upper bound on the duality gap as a func…
math.OC2024
Iteratively Reweighted Least Squares for Phase Unwrapping
Benjamin Dubois-Taine, Roland Akiki, Alexandre d'Aspremont
The 2D phase unwrapping problem seeks to recover a phase image from its observation modulo 2, and is a crucial step in a variety of imaging applications. In particular, it is on…