3 papers
math.OC2025
An inexact alternating projection method with application to matrix completion
Stefania Bellavia, Simone Rebegoldi, Mattia Silei
We develop and analyze an inexact regularized alternating projection method for nonconvex feasibility problems. Such a method employs inexact projections on one of the two sets, ac…
math.OC2024
An investigation of stochastic trust-region based algorithms for finite-sum minimization
Stefania Bellavia, Benedetta Morini, Simone Rebegoldi
This work elaborates on the TRust-region-ish (TRish) algorithm, a stochastic optimization method for finite-sum minimization problems proposed by Curtis et al. in [Curtis2019, Curt…
math.OC2024
Inexact Restoration via random models for unconstrained noisy optimization
Benedetta Morini, Simone Rebegoldi
We study the Inexact Restoration framework with random models for minimizing functions whose evaluation is subject to errors. We propose a constrained formulation that includes wel…