Cahiers : GERAD

Sep 2020

TriCG and TriMR: Two iterative methods for symmetric and quasi-definite systems

Alexis Montoison and Dominique Orban

G-2020-41

Aug 2020

Modeling and solving bundle adjustment problems

Célestine Angla, Jean Bigeon, and Dominique Orban

G-2020-42

Jun 2020

A symmetric formulation of the linear system arising in interior methods for convex optimization with bounded condition number

Alexandre Ghannad, Dominique Orban, and Michael A. Saunders

G-2020-37

Oct 2019

Constraint-preconditioned Krylov solvers for regularized saddle-point systems

Daniela di Serafino and Dominique Orban

G-2019-72

Sep 2019

BiLQ: An iterative method for nonsymmetric linear systems with a quasi-minimum property

Alexis Montoison and Dominique Orban

G-2019-71

Sep 2019

Étude du comportement des méthodes BFGS et L-BFGS pour résoudre un sous-problème de région de confiance

Johann Bourhis, Jean-Pierre Dussault, and Dominique Orban

G-2019-64

Aug 2019

Scaled projected-directions methods with application to transmission tomography

Guillaume Mestdagh, Yves Goussard, and Dominique Orban

G-2019-60

Apr 2019

Implementing a smooth exact penalty function for constrained nonlinear optimization

Ron Estrin, Michael P. Friedlander, Dominique Orban, and Michael A. Saunders

G-2019-27

Feb 2019

A regularization method for constrained nonlinear least squares

Dominique Orban and Abel Soares Siquiera

G-2019-17

Jan 2019

Implementing a smooth exact penalty function for equality-constrained nonlinear optimization

Ron Estrin, Michael P. Friedlander, Dominique Orban, and Michael A. Saunders

G-2019-04

Jul 2018

The conjugate residual method in linesearch and trust-region methods

Marie-Ange Dahito and Dominique Orban

G-2018-50

Jun 2018

USYMLQR: A tridiagonalization method for symmetric saddle-point systems

Alfredo Buttari, Dominique Orban, Daniel Ruiz, and David Titley-Peloquin

G-2018-42

Jun 2018

LNLQ: an iterative method for least-norm problems with an error minimization property

Ron Estrin, Dominique Orban, and Michael A. Saunders

G-2018-40

Feb 2018

A regularized interior-point method for constrained linear least squares

Mohsen Dehghani, Andrew Lambe, and Dominique Orban

G-2018-07

Dec 2017

Stabilized optimization via an NCL algorithm

Ding Ma, Kenneth Judd, Dominique Orban, and Michael A. Saunders

G-2017-108

Sep 2017

Combining surrogate strategies with MADS for mixed-variable derivative-free optimization

Anne-Sophie Crélot, Charlotte Beauthier, Dominique Orban, Caroline Sainvitu, and Annick Sartenaer

G-2017-70

Aug 2017

Factorization-free methods for computed tomography

Yves Goussard, Maxime McLaughlin, and Dominique Orban

G-2017-65

Aug 2017

Numerical methods for stochastic dynamic programming with application to hydropower optimization

Pascal Côté, Kenjy Demeester, Dominique Orban, and Mehdi Towhidi

G-2017-64

Jan 2017

LSLQ: An iterative method for linear least-squares with an error minimization property

Ron Estrin, Dominique Orban, and Michael A. Saunders

G-2017-05

Sep 2016

Estimates of the 2-norm forward error for SYMMLQ and CG

Ron Estrin, Dominique Orban, and Michael A. Saunders

G-2016-70

Aug 2016

A regularized factorization-free method for equality-constrained optimization

Sylvain Arreckx and Dominique Orban

G-2016-65

Jun 2016

NLP.py: An object-oriented environment for large-scale optimization

Sylvain Arreckx, Dominique Orban, and Nikolaj van Omme

G-2016-42

Nov 2015

A collection of linear systems arising from interior-point methods for quadratic optimization

Dominique Orban

G-2015-117

Oct 2015

Scalable adaptative cubic regularization methods

Jean-Pierre Dussault and Dominique Orban

G-2015-109

Sep 2014

A matrix-free augmented Lagrangian algorithm with application to large-scale structural design optimization

Sylvain Arreckx, Andrew Lambe, Joaquim R.R.A. Martins, and Dominique Orban

G-2014-71

Mar 2014

The projected Golub-Kahan process for constrained linear least-squares problems

Dominique Orban

G-2014-15

Dec 2013

Limited-Memory LDL\(^{\rm T}\) Factorization of Symmetric Quasi-Definite Matrices

Dominique Orban

G-2013-87

May 2013

Iterative Methods for Symmetric Quasi-Definite Linear Systems. Part I: Theory

Mario Arioli and Dominique Orban

G-2013-32

Apr 2013

CUTEst: A Constrained and Unconstrained Testing Environment with Safe Threads

Nick Gould, Dominique Orban, and Philippe Toint

G-2013-27

Apr 2013

Projected Krylov Methods for Saddle-Point Systems

Nick Gould, Dominique Orban, and Tyrone Rees

G-2013-23

Aug 2012

Bounds on Eigenvalues of Matrices Arising from Interior-Point Methods

Chen Greif, Erin Moulding, and Dominique Orban

G-2012-42

Mar 2012

A Primal-Dual Regularized Interior-Point Method for Semidefinite Programming

Ahad Dehghani, Jean-Louis Goffin, and Dominique Orban

G-2012-12

Mar 2012

Optimization of Algorithms with OPAL

Charles Audet, Kien-Cong Dang, and Dominique Orban

G-2012-08

Mar 2012

Customizing the Solution Process of COIN-OR's Linear Solvers with Python

Mehdi Towhidi and Dominique Orban

G-2012-07

Jan 2012

Solving Unconstrained Nonlinear Programs Using ACCPM

Ahad Dehghani, Jean-Louis Goffin, and Dominique Orban

G-2012-02

Oct 2011

Trajectory-Following Methods for Large-Scale Degenerate Convex Quadratic Programming

Nick Gould, Dominique Orban, and DP Robinson

G-2011-50

Jun 2011

Templating and Automatic Code Generation for Performance with Python

Dominique Orban

G-2011-30

Jan 2011

Efficient Use of Parallelism in Algorithmic Parameter Optimization Applications

Charles Audet, Kien-Cong Dang, and Dominique Orban

G-2011-03

Sep 2010

A Primal-Dual Regularized Interior-Point Method for Convex Quadratic Programs

Michael P. Friedlander and Dominique Orban

G-2010-47

Jun 2010

An Interior-Point l₁-Penalty Method for Nonlinear Optimization

Nick Gould, Dominique Orban, and Philippe Toint

G-2010-38

Jan 2010

Algorithmic Parameter Optimization of the DFO Method with the OPAL Framework

Charles Audet, Kien-Cong Dang, and Dominique Orban

G-2010-02

Nov 2009

An \(\ell_1\) Elastic Interior-Point Method for Mathematical Programs with Complementarity Constraints

Zoumana Coulibaly and Dominique Orban

G-2009-74

Oct 2009

The Lightning AMPL Tutorial. A Guide for Nonlinear Optimization Users

Dominique Orban

G-2009-66

Sep 2008

A New Version of the Improved Primal Simplex for Degenerate Linear Programs

Vincent Raymond, François Soumis, and Dominique Orban

G-2008-66

Sep 2008

From Global to Local Convergence of Interior Methods for Nonlinear Optimization

Paul Armand, Joël Benoist, and Dominique Orban

G-2008-59

Sep 2008

Nonlinear Continuous Deformation of an Image Based on a Set of Coplanar Straight Lines

Paul Armand, Arthemy Kiselev, Odile Marcotte, Dominique Orban, and Vincent Zalzal

G-2008-58

Jun 2008

Projected Krylov Methods for Unsymmetric Augmented Systems

Dominique Orban

G-2008-46

Feb 2008

LANCELOT_SIMPLE: A Simple Interface for LANCELOT B

Nick Gould, Dominique Orban, and Philippe Toint

G-2008-11

Nov 2007

Convexity and Concavity Detection in Computational Graphs. Tree Walks for Convexity Proving

Robert Fourer, Chandrakant Maheshwari, Arnold Neumaier, Dominique Orban, and Hermann Schichl

G-2007-90

Aug 2007

The Squared Slacks Transformation in Nonlinear Programming

Paul Armand and Dominique Orban

G-2007-62

Feb 2007

DrAmpl - A meta solver for optimization

Robert Fourer and Dominique Orban

G-2007-10

Oct 2005

Interpretation of Nonlinear Interior Methods as Damped Newton Methods

Paul Armand, Joël Benoist, and Dominique Orban

G-2005-80

Dec 2004

Finding Optimal Algorithmic Parameters Using the Mesh Adaptive Direct Search Algorithm

Charles Audet and Dominique Orban

G-2004-96

Nov 2004

Sensitivity of Trust-Region Algorithms on their Parameters

Nick Gould, Dominique Orban, Annick Sartenaer, and Philippe Toint

G-2004-86

Nov 2004

Numerical Methods for Large-Scale Nonlinear Optimization

Nick Gould, Dominique Orban, and Philippe Toint

G-2004-85

Cahiers du GERAD

Dominique Orban

Annual Reports