Nonlinear Optimization

Gruppi di ricerca

Publications

A computational study on QP problems with general linear constraints	2022
A Derivative-Free Line-Search Algorithm for Simulation-Driven Design Optimization Using Multi-Fideli...	2022
An Augmented Lagrangian Method Exploiting an Active-Set Strategy and Second-Order Information	2022
Derivative-free methods for mixed-integer nonsmooth constrained optimization	2022
Minimization over the l(1)-ball using an active-set non-monotone projected gradient	2022
Computing mixed strategies equilibria in presence of switching costs by the solution of nonconvex QP...	2021
A Class of Approximate Inverse Preconditioners Based on Krylov-Subspace Methods for Large-Scale Nonc...	2020
A concave optimization-based approach for sparse multiobjective programming	2020
An active-set algorithmic framework for non-convex optimization problems over the simplex	2020
An algorithmic framework based on primitive directions and nonmonotone line searches for black-box o...	2020
Hybridization of multi-objective deterministic particle swarm with derivative-free local searches	2020
Improving ADMMs for solving doubly nonnegative programs through dual factorization	2020
Improving P300 Speller performance by means of optimization and machine learning	2020
Issues on the use of a modified Bunch and Kaufman decomposition for large scale Newton’s equation	2020
Iterative Grossone-Based Computation of Negative Curvature Directions in Large-Scale Optimization	2020
On the convergence of steepest descent methods for multiobjective optimization	2020
A new branch-and-bound algorithm for standard quadratic programming problems	2019
Global optimization issues in deep network regression: an overview	2019
How grossone can be helpful to iteratively compute negative curvature directions	2019
Trust-region methods for the derivative-free optimization of nonsmooth black-box functions	2019
A multi-objective DIRECT algorithm for ship hull optimization	2018
An adaptive truncation criterion, for linesearch-based truncated Newton methods in large scale nonco...	2018
An implicit filtering algorithm for derivative-free multiobjective optimization with box constraints	2018
Data and performance of an active-set truncated Newton method with non-monotone line search for boun...	2018
Data and performance profiles applying an adaptive truncation criterion, within linesearch-based tru...	2018
Faster Motion on Cartesian Paths Exploiting Robot Redundancy at the Acceleration Level	2018
Parallel decomposition methods for linearly constrained problems subject to simple bound with applic...	2018
Parallelized hybrid optimization methods for nonsmooth problems using NOMAD and linesearch	2018
Preconditioned nonlinear conjugate gradient methods based on a modified secant equation	2018
Quasi-Newton based preconditioning and damped quasi-Newton schemes for nonlinear conjugate gradient...	2018
Using a factored dual in augmented Lagrangian methods for semidefinite programming	2018
A Two-Stage Active-Set Algorithm for Bound-Constrained Optimization	2017
Exploiting damped techniques for nonlinear conjugate gradient methods	2017
Novel preconditioners based on quasi–Newton updates for nonlinear conjugate gradient methods	2017
A derivative-free approach to constrained multiobjective nonsmooth optimization	2016
A fast active set block coordinate descent algorithm for ℓ1-regularized least squares	2016
A nonmonotone GRASP	2016
A novel class of approximate inverse preconditioners for large positive definite linear systems in o...	2016
Extracting feasible robot parameters from dynamic coefficients using nonlinear optimization methods	2016
Guest editorial	2016
Nonlinear optimization: a bridge from theory to applications	2016
Preconditioning strategies for nonlinear conjugate gradient methods, based on quasi-Newton updates	2016
An estimation of the condition number for a class of indefinite preconditioned matrices	2015
Control of Redundant Robots Under Hard Joint Constraints: Saturation in the Null Space	2015
Discrete-time Redundancy Resolution at the Velocity Level with Acceleration/Torque Optimization Prop...	2015
Unilateral constraints in the Reverse Priority redundancy resolution method	2015
Using SVM to combine global heuristics for the Standard Quadratic Problem	2015
A Reverse Priority approach to multi-task control of redundant robots	2014
Discrete-time velocity control of redundant robots with acceleration/torque optimization properties	2014
Fast redundancy resolution for high-dimensional robots executing prioritized tasks under hard bounds...	2013
Nonlinear Optimization: a Bridge from Theory to Applications	2013
Optimal redundancy resolution with task scaling under hard bounds in the robot joint space	2013
Preconditioning Newton-Krylov methods in nonconvex large scale optimization	2013
An active set feasible method for large-scale minimization problems with bound constraints	2012
ERICE 2010 - Nonlinear Optimization - Special Issue of Computational optimization and Applications	2012
Guest editorial	2012
Motion control of redundant robots under joint constraints: Saturation in the null space	2012
Preconditioning Large Indefinite Linear Systems	2012
Prioritized multi-task motion control of redundant robots under hard joint constraints	2012
Quasi-Newton Updates for Preconditioned Nonlinear Conjugate Gradient Methods	2012
Unconstrained formulation of standard quadratic optimization problems	2012
A CLASS OF PRECONDITIONERS FOR LARGE INDEFINITE LINEAR SYSTEMS, AS BY PRODUCTOF KRYLOV SUBSPACE METH...	2011
A CLASS OF PRECONDITIONERS FOR LARGE INDEFINTIE LINEAR SYSTEMS, AS BY PRODUCT OF KRYLOV SUBSPACE MET...	2011
An unconstrained minimization method for solving low-rank SDP relaxations of the maxcut problem	2011
On the convergence of a Jacobi-type algorithm for singly linearly-constrained problems subject to si...	2011
Erice 2007: Nonlinear Optimization	2010
Guest Editorial - Erice 2007 Nonlinear Optimization - Special Issue of COMPUTATIONAL OPTIMIZATION AN...	2010
LARGE SCALE UNCONSTRAINED OPTIMIZATION	2009
Iterative computation of negative curvature directions in large scale optimization	2007
New Problems and Innovative Methods in Nonlinear Optimization	2007
ON THE ITERATIVE COMPUTATION OF A l2-NORM SCALING BASED PRECONDITIONER	2007
AN APPROXIMATE INVERSE PRECONDITIONER IN TRUNCATED NEWTON METHODS FOR LARGE SCALE OPTIMIZATION	2006
Large Scale Nonlinear Optimization	2006
Dynamic scaling based preconditioning for truncated Newton methods in large scale unconstrained opti...	2005
ITERATIVE COMPUTATION OF NEGATIVE CURVATURE DIRECTIONS IN LARGE SCALE OPTIMIZATION: THEORY AND PRELI...	2005
A truncated Newton method for constrained optimization	2000
A shifted-barrier primal-dual algorithm model for linearly constrained optmization problems	1999
Solution of the trust region problem via a smooth Unconstrained Reformulation	1998

Eventi

11Mar 24

Portwings: Decoding the physics of flapping flight

Prof. Stefano Stramigioli (visiting professor, University of Twente)

6May 22

The role of Mathematical Optimization to enhance Transparency in Data Science

10Jun 19

Linear Complementarity Problems: Applications, Formulations and Algorithms

Joaquim Judice

25Mar 19

Handling non-convex or expensive objectives: algorithms for multiobjective optimization without...

Prof. Gabriele Eichfelder

31Aug 17

MORE@DIAG - Speakers: Tommaso Colombo; Ludovica Maccarrone

Tommaso Colombo, Ludovica Maccarrone

Persone

	Barros Carlos Barbara
	Boresta Marco
	Giovannelli Tommaso
	Liuzzi Giampaolo
	Lucidi Stefano
	Moslemi Mohammad Mahdi
	Romito Francesco
	Seccia Ruggiero
	Tarantos Spyridon
	Tronci Edoardo Maria

Visiting professors

Joaquim Judice

Instituto de Telecomunicações FCTUC – DEEC Polo II Universidade de Coimbra