Talks by Ph. TOINT

How much patience do you have? Issues in complexity for nonlinear optimization
(Polytechnic University of Hong Kong,
Chinese University of Hong Kong,
University of Florence (I),
Fields Institute Toronto, Canada)

BFO, a trainable and versatile Brute Force Optimizer
(Polytechnic University of Hong Kong, Hong Kong,
ENSEEIHT, Toulouse, F)

2015

Data Assimilation for Weather Forecasting: Reducing the Curse of Dimensionality
(University of Oxford, Oxford, Great Britain)

How much patience do you have? Issues in complexity for nonlinear optimization
(University of Cambridge, Cambridge, Great Britain
University of Edinburgh, Edinburgh, Great Britain)>

An informal walk in the world of mathematical optimization
(Balliol College, Oxford, Great Britain)>

BFO, a trainable and versatile Brute Force Optimizer
(Balliol College, Oxford, Great Britain
Univeristy of Birmingham, Birmingham, Great Britain)>

Multilevel optimization using trust-region and linesearch approaches
(University of Oxford, Oxford, Great Britain)

Algorithm Tuning Using Optimization
(Sparse Days, St Girons, France
ISMP 2015, Pittburgh, USA)

2014

Evaluation Complexity In Nonlinear Optimization Using Lipschitz-Continuous Hessian
(XBRAZOPT, Florianopolis, Brasil)

Gouvernance intelligente : un outil intégrateur
(MIPIM 2014, Cannes, France)

2013

Une promenade informelle dans le monde de l'optimisation mathématique
(Collège Belgique, Namur)

Range-space Krylov methods for nonlinear problems in data assimilation
(ICCOPT 2013, Lisbon (P)
University of Oxford (UK))

Inexact range-space Krylov solvers for linear systems arising from inverse problems
(Recent Advances in Optimization, Toulouse (F))

Complexity in nonlinear optimization
(19th Belgian Workshop on Mathematical Programming, La Roche en Ardenne
University of Florence, Florence (I)
AGH University of Science and Technology, Krakow (P))

2012

Krylov methods in the observation space for data assimilation
(Mathematical and Algorithmic Aspects of Atmosphere-Ocean Data Assimilation, Oberwolfach, Germany)

Tendances de la demande en mobilité
(Union Wallonne des Entreprises, Louvain-la-Neuve)

Evaluation complexity in smooth constrained and unconstrained optimization
(Programme Gaspard Monge pour l'Optimisation, Paris)

CG vs MG solvers for diffusion-based correlation models in data assimilation
(3rd IMA Conference on Numerical Linear Algebra and Optimisation, Birmingham)

Preconditioning least-squares problems using duality with an application to data assimilation
(OPTEC, Leuven)

Complexity Issues for Nonconvex Optimization
(OMS Conference, Chania, GR)

Opening address
(ISMP 2012, Berlin)

The Cubic Regularization Algorithm and Complexity Issues for Nonconvex Optimization
(SIAM UKIE, Leicester)

2011

Consolidation de jeux de données pour la prospective :
la génération d'une population synthétique pour les communes de Belgique
(IWEPS, Namur)

Range space Krylov methods for data assimilation in meteorology and oceanography
(Workshop "Advances in Computational Science" 2011, Lugano, Switzerland)

The Cubic Regularization Algorithm and Complexity Issues for Nonconvex Optimization
(SIOPT 2011, Darmstadt, Germany,
FOCM 2011 Workshop on Continuous Optimization, Budapest, Hungary,
MOPTA 2011, Bethleem, USA)

An introduction to complexity analysis for nonconvex optimization
(SRI-FUNDP, St Hubert)

More on cubic regularization and complexity for nonconvex optimization
(US-Mexico Workshop on Optimization, Oaxaca, Mexico,
Groningen, Netherlands)

2010

A (quick) overview of some complexity issues for nonconvex optimization
(NAXYS Opening Day, FUNDP, Namur)

Une promenade informelle dans le monde de l'optimisation mathématique
(FUNDP, Namur)

Cubic regularization and complexity issues for nonconvex optimization
(ICCOPT 2010, Santiago, Chile,
UNICAMP, Campinas, Brasil,
University of Lugano, Lugano, Switzerland,
Matheon, TU Berlin, Germany,
EWMINLP, University of Sevilla, Spain)

Le point de vue d'un expert extérieur du projet ADTAO
(RTRA 1rst Spring Meeting, Toulouse, France)

Consolidation de jeux de données pour la prospective :
la génération d'une population synthétique pour les communes de Belgique
(IWEPS, Namur)

BFO: a simple brute-force optimizer and its self optimization
(ECMINLP, Luminy, France)

A new image reconstruction technique using the Linear Sampling method in inverse scattering problems
(ECMINP, Luminy, France)

BFO: a simple brute-force optimizer
(ORBEL 24, Liège)

Inexact range-space Krylov solvers for linear systems arising from inverse problems
(PloyU and HKBU, Hong Kong, China,
University of Birmingham, United Kingdom,
KULeuven, B)

2009

Cubic regularization algorithm and complexity issues for nonconvex optimization
(Toulouse, UPS, France)

An adaptive cubic regularization algorithm for nonconvex optimization with convex constraints and its function-evaluation complexity
(IFIP TC7 Conference, Buenos Aires, Argentina,
Mathematical Programming, Chicago, USA)

A new derivative-free algorithm for unconstrained optimization
(Firenze, Italy,
EURO Optimization, Remagen, Germany,
Toulouse, IRIT, F)

Nonlinear stepsize control, trust region and regularizations
(Oxford, United Kingdom,
Optimization Days, Montreal, Canada)

2008

Nonlinear stepsize control, trust region and regularizations
(Veszprem, Hungary)

Multilevel Optimization using Trust-Region and Linesearch Approaches
(OPTDE Conference, Warsaw, Poland)

Choix discrets et transports : applications et méthodologie
(Ecole des Ponts, Paris, France)

Some new developments in nonlinear programming
(GOM08, Saint Maximin, France)

L'expérience belge et les besoins de la recherche en mobilité
(CEPS/INSTEAD Conference on Mobility, Luxembourg, Luxembourg)

A retrospective trust-region method
(The Polytechnic University, Hong Kong)

Nonlinear stepsize control, trust region and regularization
(FOCM Conference, City University, Hong Kong
IRCM Conference, Luxemburg)

Towards a Regularized Funnel Algorithm for Constrained Optimization
(SIAM Conference on Optimization, Boston, USA)

Multilevel Optimization using Trust-Region and Linesearch Approaches
(Conference on Numerical Analysis and Optimization, Muscat, Oman)

New developements in nonlinear programming with perspectives for management sciences
(Computational Managements Science Conference, London, United Kingdom)

2007

Multilevel Optimization using Trust-Region and Linesearch Approaches
(IMA Conference on Optimization and Linear Algebra, Birmingham, United Kingdom,
Conference on PDE constrained optimization, Bad Honnef, Germany,
Edinburgh University, United Kingdom,
Nonconvex optimization: Global and local approaches, Rouen, France)

Multilevel Limited Memory BFGS with application to Data Assimilation
(MOPTA-ICCOPT, Hamilton, Canada)

Adaptive Cubic Overestimation for Unconstrained Optimization
(EUROPT-OMS, Prag, Chequia,
Conference on PDE constrained optimization, Bad Honnef, Germany)

Modelling the weekly work patterns in sBelgium
(TRISTAN VI, Phuket, Thailand)

Quelques idées dans le domaine des transport (pour la prochaine législature)
(Midis de la Mobilité, SPF Mobilité et Transports, Bruxelles)

Nonlinear programming without a penalty function or filter
(US-Mexico Workshop on Optimization, Huatulco, Mexico,
Center for Wiskunde en Informatica (CWI), Amsterdam, Netherlands,
FUNDP, Namur,
Imperial College, London, United Kingdom)

2006

Mobilité des personnes, enquêtes comportementales et modèles désaggrégés
(University of Liège)

Recursive trust-region methods for multilevel nonlinear optimization
(ICNAO2006, Beijing, China,
University of Oxford, United Kingdom,
Katholieke Universiteit Leuven)

Filters: an efficient tool for nonlinear programming
(Fourth Joint OR Days, Lausanne, CH,
Space Mapping Day, Amsterdam, Netherlands,
ORBEL 21, Luxembourg)

Recognizing Underlying Sparsity in Optimization
(Sparse Days, Toulouse, France)

Recursive Trust-Region Method for Unconstrained Minimization: Convergence Properties and Experience
(High Performance Scientific Computing, Hanoi, Vietnam)

La mobilité des ménages du Brabant Wallon
(Maison de l'Urbanisme du Brabant Wallon, Wavre)

2005

Quelques déterminants de la mobilité automobile
(CDH, Limal)

Mobility and time use
(Eurostat, Luxemburg)

La mobilité quotidienne des Belges
(Conseil Central de l'Economie, Bruxelles)

A recursive trust-region method for multiscale unconstrained optimization
(International Conference on Scientific Computing, Nanjing, China,
Eighth European Multigrid Conference, Scheveningen, Netherlands)

A recursive trust-region method for multiscale unconstrained optimization: preliminary numerical experience
(SIAM Conference on Optimization, Stockholm, Sweden)

A numerical exploration of recursive multiscale unconstrained optimization
(University of Hamburg, Hamburg, Germany
Optimization and Applications, Oberwolfach, Germany)

2004

La mobilité des aînés en Wallonie
(AFUTAB, Tournai)

Comprendre la demande de déplacements : vers des modèles d'activités
(Centre Interuniversitaire d'Etude de la Mobilité, Brussels)

Using filter methods in nonlinear equations, unconstrained and bound constrained optimization
(International Conference on Continuous Optimization (ICCOPT1), Troy, USA)

Trust regions, filter and non-monotonicity in nonlinear optimization
(Conference on Multiscale Optimization, Gainesville, Florida, USA,
V Brazilian Workshop on Continuous Optimization, Florianopolis, Brasil,
and Dutch-Belgian Mathematical Conference, Tilburg, Netherlands)

Une brève analyse de la demande de déplacements
(CWEDD, Région Wallone, Louvain-la-Neuve, Belgique)

2003

Daily Mobility and the Regions in Belgium
(Vlaamse Gemeentschap, Brussels)

Ecole et mobilité quotidienne en Wallonie
(Union des Villes et Communes de Wallonie, Jambes, Belgium)

Numerical Experiments with AMLET, a New Monte-Carlo Algorithm for Estimating Mixed Logit Models
(ENSEEIHT, Toulouse, France)

How mature is nonlinear optimization?
(ICIAM 2003, Sydney, Australia)

The filter idea and its application to the nolinear feasibility problem
(Conference on Numerical Analysis, Dundee, United Kingdom)

A glimpse into daily travel patterns (from the Belgian National Travel survey)
(The Royal Society of New Zealand, Christchurch, New Zealand)

The filter idea and its application to nonlinear equations, nonlinear inequalities and nonlinear least-squares
(Bath, United Kingdom)

2002

Derivative Free Optimization: Constrained and Unconstrained
(Lunteren, Netherlands)

A Non-monotone Filter Algorithm
(Toronto, Canada)

2001

Exploiting Structure in Unconstrained Derivative Free Optimization
(Amritsar, India)

Constrained Derivative Free Optimization using and SQP approach
(Tilburg, Netherlands)

Sequential Quadratic Programming and Filter Methods
(Trier, Germany)

2000

Exploiting Sparsity in Unconstrained Optimization without Derivatives
(ISMP 2000, Copenhagen, Denmark)

Towards European Long Distance Travel Surveys: the MEST and TEST projects
(European Union, Brussels)

Developping a preprocessor for quadratic programs in the framework of SQP
(SIAM Conference on Optimization, Atlanta, USA)

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