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Talks


Conferences and workshops

ICCOPT 2016
Tokyo, Japon, August, 2016
"GAP safe screening rule for sparsity enforcing penalties"

66th Workshop "Advances in Convex Analysis and Optimization
Erice, Italie, Juillet, 2016
"GAP safe screening rule for sparsity enforcing penalties"

SIAM Conference on Imaging Science 2016
Albuquerque, New-Mexico, May 24, 2016
"GAP safe screening rule for sparsity enforcing penalties"

Statistics/Learning at Paris-Saclay
Bures-sur-Yvette, IHES, January 8, 2015
"GAP safe screening rule for sparsity enforcing penalties"

Taller-Escuela de Procesamiento de Imagenes (PI'15) y de Reconocimiento Estadistico de Patrones (SPR'15)
Guanajuato, 5 November - 6 November 2015
"Convex optimization, sparsity and regression in high dimension" (slides) (video)
"Mind the duality gap: safer screening rules for the Lasso and its variants" (slides) (video)

NIPS 2014
Montréal, December 8th - December 11th 2014
"Probabilistic Low-rank Matrix Completion on Finite Alphabet"

Bioimage Informatics conference
Leuven, October 8th - October 10th 2014
"Adaptive Validation, a possible alternative to Cross-Validation" (slides)

Journées MAS 2014
Toulouse, August 27th - August 29th 2014
"Adaptive one-bit matrix completion"

46èmes   Journées de Statistique
Rennes, June 2nd - June 6th 2014
"Adaptive one-bit matrix completion"

Apprentissage de représentations et traitement du signal (GdR ISIS)
Paris, February 2nd, 2014
"Poisson noise reduction with non-local PCA" (slides)

International Conference on Machine Learning (ICML 2013)
Atlanta, June 16th - June 20st 2013
"Learning Heteroscedastic Models by Convex Programming under Group Sparsity"

Peyresq summer school 2013
Peyresq, June 23rd - June 29th 2013
"Learning Heteroscedastic Models by Convex Programming under Group Sparsity" (slides)

Congrès SMAI 2013
Seignosse, May 27th - May 31st 2013
"Learning Heteroscedastic Models by Convex Programming under Group Sparsity" (slides)

Nonparametric and high-dimensional statistics
Luminy, December 17th - December 21st 2012
"Oracle inequalities and minimax rates for non-local means and related adaptive kernel-based methods"

NGA Academic Research Symposium & Workshops
Washington, DC, August 21st - August 24th 2012
"Poisson noise reduction with non-local PCA" (poster)

Solar Information Processing (SIPWork VI)
Bozeman, MT, August 13th - August 16th 2012
"Poisson noise reduction with non-local PCA" (slides)

Statistical Signal Processing Workshop (SSP 2012)
Ann Harbour, August 5th - August 8th 2012
"A two-stage denoising filter: the preprocessed Yaroslavsky filter" (poster)

SIAM Conference on Imaging Science 2012
Philadelphia, May 20th - May 22nd 2012
"Poisson noise reduction with non-local PCA" (slides)

International Conference on Acoustics, Speech and Signal Processing (ICASSP 2012)
Kyoto, March 25th - March 30th 2012
"Poisson noise reduction with non-local PCA" (poster)

Conference on Learning Theory (2011)
Budapest, July 9th - July 11th 2011
"Optimal aggregation of affine estimators" (slides)

International Conference on Image Processing (ICIP 2010)
Hong Kong, September 26th - September 29th 2010
"From Patches to Pixels in Non-Local methods: Weighted-Average Reprojection" (poster)

Journées MAS 2010
Bordeaux, August 31st - September 3rd 2010
"Agreggating estimators for heteroscedastic regression" (slides)

Statistical Models for Images
Luminy, May 17th - May 21st 2010
"Reprojections for Non-Local Means" (slides)

Neuvième Colloque "Jeunes Probabilistes et Statisticiens"
Le Mont-Dore, May 3rd - May 7th 2010
"Méthodes à Patchs pour le débruitage d'images numériques "

International Conference on Image Processing (ICIP 2009)
Cairo, November 7th - November 10th 2009
"NL-Means and Aggregation Procedures" (slides)

3èmes Rencontres de Jeunes Statisticiens
Aussois, August 31st - September 4th 2009
"Agrégation d'estimateurs pour le débruitage d'images" (slides)

41èmes Journées de Statistique

Bordeaux, May 25th - May 29th 2009
"Agrégation d'estimateurs pour le débruitage d'images"

Modélisation Statistiques des Images, Rencontre mathématique à Luminy
Luminy, May 5th-May 9th 2008
" NL-Means et Agrégation" (slides)

Seminars

Séminaire de calcul scientifique du CERMICS (6/01/2017)
"GAP safe screening rule for sparsity enforcing penalties"
Invited by V. Leclère (slides)

Séminaire Probabilités et Statistiques (IMB) (14/04/2016)
"GAP safe screening rule for sparsity enforcing penalties"
Invited by A. Richou (slides)

Séminaire de Statistique de l'IRMAR (25/03/2016)
"GAP safe screening rule for sparsity enforcing penalties"
Invited by A. Saumard (slides)

Séminaire de Statistique du Crest (05/11/2015)
"Mind the duality gap: safer rules for the Lasso"
Invited by A. Tsybakov and A. S. Dalalyan

PRISM Seminar (03/06/2015)
"Mind the duality gap: safer rules for the Lasso"
Invited by Y. Strozecki

UIUC CSL Communications seminar, Urbana (03/09/2013)
"Learning Heteroscedastic Models by Convex Programming under Group Sparsity" (slides)
Invited by M. Raginsky

RT9; Informatique Fondamentale et Mathématiques Appliquées (03/09/2013)
"Learning Heteroscedastic Models by Convex Programming under Group Sparsity" (slides)
Invited by G. Fort

Duke ECE seminar, Durham (13/06/2013)
"Heteroscedastic regression in high dimension with group sparsity" (slides)
Invited by R. Willett

Séminaire parisien de Statistiques (IHP), Paris (11/02/2013)
"Heteroscedastic regression in high dimension" (slides)
Invited by G. Fort

Seminar for Statistics, ETH, Zurich (29/06/2012)
"Poisson noise reduction with non-local PCA"
Invited by S. van de Geer

Stochastic seminar, Georgia Tech, Atlanta (09/01/2011)
"Optimal Aggregation for Affine Estimators" (slides)
Invited by K. Lounici

Séminaire du LMAC, Université de Technologie de Compiègne (03/29/2011)
Invited by G. Gayraud

Séminaire de Probabilités et Statistiques, Laboratoire Paul Painlevé, Lille (16/02/2011)
"Sharp Oracle Inequalities for aggregating affine estimators" (slides)
Invited by A. Célisse

Groupe de travail Modélisation numérique et Images, MAP5, (28/01/2011)
"NL-Means, reprojections and adaptative patches " (slides)
Invited by G. Koepfler

Séminaire de Probabilités et Statistiques d'Angers (17/01/2011)
"Sharp Oracle Inequalities for aggregating affine estimators" (slides)
Invited by S. Lousteau

Séminaire de Statistique de Toulouse (11/01/2011)
"Sharp Oracle Inequalities for aggregating affine estimators" (slides)
Invited by C. Marteau

Séminaire de Statistique du Crest (08/11/2010)
"SharpOracle Inequalities for aggregating affine estimators" (abstract)
Invited by A. Tsybakov and P. Alquier

GREYC Image Seminar, University of Caen (10/12/2009)
"NL-Means and aggregation procedures"(slides-fr)
Invited by J. Fadili

PHD Student seminar of the LPMA (26/02/2009)
"Estimator aggregation for image denoising"

PHD Student seminar of the MAP5, University Paris 5(17/02/2009)
"Denoising images through estimators aggregation"
Invited by C. Louchet

PHD Student seminar of the LPMA (17/04/2008)
"Denoising images through estimators aggregation"

Invitations without talks

IMA Workshop: High Dimension Phenomena
(Minneapolis, September 26th - September 30th 2011)

Journées Statistiques du Sud (Porquerolles, June 17th - June 19th 2009)

Symposium on learning and data science (Paris-Dauphine, April 1st - April 3rd 2009)

Sparse Recovery Problems in High Dimensions: Statistical Inference and Learning Theory (Oberwolfach, March 15th - March 21st, 2009)
Invited by A. Tsybakov

Colloquium: Statistiques pour le traitement de l'image (Université Paris 1 Panthéon-Sorbonne, January 22nd - January 23th 2009)

Statistique Mathematique et Applications (Fréjus, September 1st- September 5th 2008)

Journées Statistiques du Sud (Toulouse, June 16th - June 18th 2008)