3 papers
math.OC2020
An inexact non stationary Tikhonov procedure for large-scale nonlinear ill-posed problems
Stefania Bellavia, Marco Donatelli, Elisa Riccietti
In this work we consider the stable numerical solution of large-scale ill-posed nonlinear least squares problems with nonzero residual. We propose a non-stationary Tikhonov method…
math.NA2019
On the iterative solution of systems of the form
Henri Calandra, Serge Gratton, Elisa Riccietti +1
Given a full column rank matrix (), we consider a special class of linear systems of the form with $x, c \in \mathbb{…
math.OC2019
Worst-case Complexity Bounds of Directional Direct-search Methods for Multiobjective Optimization
A. L. Custódio, Y. Diouane, R. Garmanjani +1
Direct Multisearch is a well-established class of algorithms, suited for multiobjective derivative-free optimization. In this work, we analyze the worst-case complexity of this cla…