3 papers
math.OC2026
Composite Optimization using Local Models and Global Approximations
Welington de Oliveira, Johannes O. Royset
This work presents a unified framework that combines global approximations with locally built models to handle challenging nonconvex and nonsmooth composite optimization problems,…
math.OC2023
Computing critical angles between two convex cones
Welington de Oliveira, Valentina Sessa, David Sossa
This paper addresses the numerical computation of critical angles between two convex cones in finite-dimensional Euclidean spaces. We present a novel approach to computing these cr…
math.OC2023
Computing Wasserstein Barycenter via operator splitting: the method of averaged marginals
Daniel Mimouni, P Malisani, J. Zhu +1
The Wasserstein barycenter (WB) is an important tool for summarizing sets of probability measures. It finds applications in applied probability, clustering, image processing, etc.…