Stefania Bellavia

56 papers B 1Journal 52Unranked 3

Year	Rank	Type	Title / Venue / Authors
2026	J	`jnl`	Fully stochastic trust-region methods with Barzilai-Borwein steplengths. J. Comput. Appl. Math. Stefania Bellavia, Benedetta Morini, Mahsa Yousefi
2025	J	`jnl`	A discrete Consensus-Based Global Optimization Method with Noisy Objective Function. J. Optim. Theory Appl. Stefania Bellavia, Greta Malaspina
2025	J	`jnl`	Correction: Regularized methods via cubic model subspace minimization for nonconvex optimization. Comput. Optim. Appl. Stefania Bellavia, Davide Palitta, Margherita Porcelli, Valeria Simoncini
2025	J	`jnl`	Inexact Gauss-Newton methods with matrix approximation by sampling for nonlinear least-squares and systems. Math. Comput. Stefania Bellavia, Greta Malaspina, Benedetta Morini
2025	—	`conf`	Numerical Assessment of Alternating Projection Methods for Matrix Completion with Application to Sparse Image Reconstruction. ICCSA (Workshops 7) Mattia Silei, Stefania Bellavia, Simone Rebegoldi
2025	J	`jnl`	Preface: New trends in large scale optimization. Comput. Optim. Appl. Stefania Bellavia, Valentina De Simone, Benedetta Morini
2025	J	`jnl`	Regularized methods via cubic model subspace minimization for nonconvex optimization. Comput. Optim. Appl. Stefania Bellavia, Davide Palitta, Margherita Porcelli, Valeria Simoncini
2024	J	`jnl`	A Proposed Workflow for the Restoration of Image Artifacts in Forensic Applications. IEEE Access Fabrizio Argenti, Stefania Bellavia, Marco Fontani, Gabriele Guarnieri, Martino Jerian, Alberto Limone, Simone Rebegoldi
2024	J	`jnl`	An investigation of stochastic trust-region based algorithms for finite-sum minimization. Optim. Methods Softw. Stefania Bellavia, Benedetta Morini, Simone Rebegoldi
2024	J	`jnl`	Fully stochastic trust-region methods with Barzilai-Borwein steplengths. CoRR Stefania Bellavia, Benedetta Morini, Mahsa Yousefi
2023	J	`jnl`	A stochastic first-order trust-region method with inexact restoration for finite-sum minimization. Comput. Optim. Appl. Stefania Bellavia, Natasa Krejic, Benedetta Morini, Simone Rebegoldi
2023	J	`jnl`	Alternate Training of Shared and Task-Specific Parameters for Multi-Task Neural Networks. CoRR Stefania Bellavia, Francesco Della Santa, Alessandra Papini
2023	J	`jnl`	Inexact Newton methods with matrix approximation by sampling for nonlinear least-squares and systems. CoRR Stefania Bellavia, Greta Malaspina, Benedetta Morini
2023	J	`jnl`	On the Convergence Properties of a Stochastic Trust-Region Method with Inexact Restoration. Axioms Stefania Bellavia, Benedetta Morini, Simone Rebegoldi
2023	J	`jnl`	Regularized methods via cubic subspace minimization for nonconvex optimization. CoRR Stefania Bellavia, Davide Palitta, Margherita Porcelli, Valeria Simoncini
2023	J	`jnl`	The Impact of Noise on Evaluation Complexity: The Deterministic Trust-Region Case. J. Optim. Theory Appl. Stefania Bellavia, Gianmarco Gurioli, Benedetta Morini, Philippe L. Toint
2022	J	`jnl`	Adaptive regularization for nonconvex optimization using inexact function values and randomly perturbed derivatives. J. Complex. Stefania Bellavia, Gianmarco Gurioli, Benedetta Morini, Philippe L. Toint
2022	J	`jnl`	Trust-region algorithms: Probabilistic complexity and intrinsic noise with applications to subsampling techniques. EURO J. Comput. Optim. Stefania Bellavia, Gianmarco Gurioli, Benedetta Morini, Philippe L. Toint
2021	J	`jnl`	A Relaxed Interior Point Method for Low-Rank Semidefinite Programming Problems with Applications to Matrix Completion. J. Sci. Comput. Stefania Bellavia, Jacek Gondzio, Margherita Porcelli
2021	J	`jnl`	A stochastic first-order trust-region method with inexact restoration for finite-sum minimization. CoRR Stefania Bellavia, Natasa Krejic, Benedetta Morini, Simone Rebegoldi
2021	—	`conf`	Quadratic and Cubic Regularisation Methods with Inexact function and Random Derivatives for Finite-Sum Minimisation. ICCSA (Workshops) Stefania Bellavia, Gianmarco Gurioli, Benedetta Morini, Philippe L. Toint
2021	J	`jnl`	Quadratic and Cubic Regularisation Methods with Inexact function and Random Derivatives for Finite-Sum Minimisation. CoRR Stefania Bellavia, Gianmarco Gurioli, Benedetta Morini, Philippe L. Toint
2021	J	`jnl`	The Impact of Noise on Evaluation Complexity: The Deterministic Trust-Region Case. CoRR Stefania Bellavia, Gianmarco Gurioli, Benedetta Morini, Philippe L. Toint
2020	J	`jnl`	Complexity Analysis of a Stochastic Cubic Regularisation Method under Inexact Gradient Evaluations and Dynamic Hessian Accuracy. CoRR Stefania Bellavia, Gianmarco Gurioli
2020	J	`jnl`	Inexact restoration with subsampled trust-region methods for finite-sum minimization. Comput. Optim. Appl. Stefania Bellavia, Natasa Krejic, Benedetta Morini
2019	J	`jnl`	A relaxed interior point method for low-rank semidefinite programming problems. CoRR Stefania Bellavia, Jacek Gondzio, Margherita Porcelli
2019	J	`jnl`	Adaptive Regularization Algorithms with Inexact Evaluations for Nonconvex Optimization. SIAM J. Optim. Stefania Bellavia, Gianmarco Gurioli, Benedetta Morini, Philippe L. Toint
2019	J	`jnl`	An inexact dual logarithmic barrier method for solving sparse semidefinite programs. Math. Program. Stefania Bellavia, Jacek Gondzio, Margherita Porcelli
2018	J	`jnl`	A Levenberg-Marquardt method for large nonlinear least-squares problems with dynamic accuracy in functions and gradients. Numerische Mathematik Stefania Bellavia, Serge Gratton, Elisa Riccietti
2018	J	`jnl`	Deterministic and stochastic inexact regularization algorithms for nonconvex optimization with optimal complexity. CoRR Stefania Bellavia, Gianmarco Gurioli, Benedetta Morini, Philippe L. Toint
2018	J	`jnl`	On an Elliptical Trust-Region Procedure for Ill-Posed Nonlinear Least-Squares Problems. J. Optim. Theory Appl. Stefania Bellavia, Elisa Riccietti
2016	J	`jnl`	On an adaptive regularization for ill-posed nonlinear systems and its trust-region implementation. Comput. Optim. Appl. Stefania Bellavia, Benedetta Morini, Elisa Riccietti
2016	J	`jnl`	On the update of constraint preconditioners for regularized KKT systems. Comput. Optim. Appl. Stefania Bellavia, Valentina De Simone, Daniela di Serafino, Benedetta Morini
2015	J	`jnl`	On affine-scaling inexact dogleg methods for bound-constrained nonlinear systems. Optim. Methods Softw. Stefania Bellavia, Sandra Pieraccini
2015	J	`jnl`	Updating Constraint Preconditioners for KKT Systems in Quadratic Programming Via Low-Rank Corrections. SIAM J. Optim. Stefania Bellavia, Valentina De Simone, Daniela di Serafino, Benedetta Morini
2014	J	`jnl`	New updates of incomplete LU factorizations and applications to large nonlinear systems. Optim. Methods Softw. Stefania Bellavia, Benedetta Morini, Margherita Porcelli
2013	J	`jnl`	A Matrix-Free Preconditioner for Sparse Symmetric Positive Definite Systems and Least-Squares Problems. SIAM J. Sci. Comput. Stefania Bellavia, Jacek Gondzio, Benedetta Morini
2012	J	`jnl`	A Preconditioning Framework for Sequences of Diagonally Modified Linear Systems Arising in Optimization. SIAM J. Numer. Anal. Stefania Bellavia, Valentina De Simone, Daniela di Serafino, Benedetta Morini
2012	J	`jnl`	Constrained Dogleg methods for nonlinear systems with simple bounds. Comput. Optim. Appl. Stefania Bellavia, Maria Macconi, Sandra Pieraccini
2011	J	`jnl`	Computational experience with numerical methods for nonnegative least-squares problems. Numer. Linear Algebra Appl. Stefania Bellavia, Jacek Gondzio, Benedetta Morini
2011	J	`jnl`	Efficient Preconditioner Updates for Shifted Linear Systems. SIAM J. Sci. Comput. Stefania Bellavia, Valentina De Simone, Daniela di Serafino, Benedetta Morini
2011	J	`jnl`	Inexact Newton methods for model simulation. Int. J. Comput. Math. Stefania Bellavia, Silvia Magheri, Claudia Miani
2011	J	`jnl`	Nonsymmetric Preconditioner Updates in Newton-Krylov Methods for Nonlinear Systems. SIAM J. Sci. Comput. Stefania Bellavia, Daniele Bertaccini, Benedetta Morini
2010	J	`jnl`	Convergence of a Regularized Euclidean Residual Algorithm for Nonlinear Least-Squares. SIAM J. Numer. Anal. Stefania Bellavia, Coralia Cartis, Nicholas I. M. Gould, Benedetta Morini, Philippe L. Toint
2009	J	`jnl`	Numerical solution of KKT systems in PDE-constrained optimization problems via the affine scaling trust-region approach. Int. J. Comput. Math. Stefania Bellavia, Sandra Pieraccini
2009	J	`jnl`	Regularization and preconditioning of KKT systems arising in nonnegative least-squares problems. Numer. Linear Algebra Appl. Stefania Bellavia, Jacek Gondzio, Benedetta Morini
2007	J	`jnl`	Globalization strategies for Newton-Krylov methods for stabilized FEM discretization of Navier-Stokes equations. J. Comput. Phys. Stefania Bellavia, Stefano Berrone
2006	J	`jnl`	An interior point Newton-like method for non-negative least-squares problems with degenerate solution. Numer. Linear Algebra Appl. Stefania Bellavia, Maria Macconi, Benedetta Morini
2006	B	`conf`	Inferences on Kernel Density Estimates by Solving Nonlinear Systems. SSDBM Stefania Bellavia, Stefano Lodi, Benedetta Morini
2006	J	`jnl`	Subspace Trust-Region Methods for Large Bound-Constrained Nonlinear Equations. SIAM J. Numer. Anal. Stefania Bellavia, Benedetta Morini
2005	J	`jnl`	An interior global method for nonlinear systems with simple bounds. Optim. Methods Softw. Stefania Bellavia, Benedetta Morini
2004	J	`jnl`	Convergence Analysis of an Inexact Infeasible Interior Point Method for Semidefinite Programming. Comput. Optim. Appl. Stefania Bellavia, Sandra Pieraccini
2004	J	`jnl`	STRSCNE: A Scaled Trust-Region Solver for Constrained Nonlinear Equations. Comput. Optim. Appl. Stefania Bellavia, Maria Macconi, Benedetta Morini
2001	J	`jnl`	A Globally Convergent Newton-GMRES Subspace Method for Systems of Nonlinear Equations. SIAM J. Sci. Comput. Stefania Bellavia, Benedetta Morini
2000	—	`conf`	A Hybrid Newton-GMRES Method for Solving Nonlinear Equations. NAA Stefania Bellavia, Maria Macconi, Benedetta Morini
1998	J	`jnl`	The Switching-Method in Multiple Shooting. Computing Stefania Bellavia, Maria Macconi, Benedetta Morini