All past S³ seminars

2021

Regularization via deep generative models: an analysis point of view

Thomas Oberlin (ISAE-SUPAERO, ANITI, IRIT)
June 25, 2021 — 11:00 — Location: Online


Online estimation of elliptical distributions and their mixture: The component-wise information gradient method

Jialun Zhou (IMS, Groupe Signal Image — CNRS, Université de Bordeaux)
May 21, 2021 — 11:00 —


Global optimization for l0-norm-based sparse solutions to least squares problems

Sébastien Bourguignon (École Centrale de Nantes, LS2N, SIMS team)
April 09, 2021 — 11:00 — Location: Online


Speeding up of kernel-based learning for high-order tensor

Ouafae Karmouda (SIGMA team at CRIStAL laboratory, Lille)
March 12, 2021 — 11:00 — Location: Online


Sampling rates for l1 synthesis

Claire Boyer (Sorbonne Université)
March 05, 2021 — 11:00 — Location: Online


2020

Efficient MCMC sampling via asymptotically exact data augmentation

Maxime Vono (IRIT — INP-ENSEEIHT)
December 11, 2020 — 14:00 — Location: Online


Riemannian geometry for data analysis: illustration on blind source separation and low-rank structured covariance matrices

Florent Bouchard (L2S — CNRS, Université Paris-Saclay, CentraleSupélec)
November 27, 2020 — 11:00 — Location: Online


Contactless detection of cardiopulmonary activity for a person in different scenarios

Sarah Samad (IETR-INSA Rennes)
November 06, 2020 — 11:00 — Location: Online


Structured Sparsity Regularization for online MR Image Reconstruction in Accelerated T2* Imaging

Philippe Ciuciu (CEA/NeuroSpin & Inria Saclay Île-de-France Parietal)
October 09, 2020 — 11:00 — Location: Online


Robust Semiparametric Efficient Estimators in Complex Elliptically Symmetric Distributions

Stefano Fortunati (IPSA, Paris, France)
October 02, 2020 — 11:00 — Location: Online


Démélange spectral sur Mars

Frédéric Schmidt (Géosciences Paris-Saclay, Université Paris-Saclay)
September 25, 2020 — 11:00 — Location: Online


Mixed Integer Programming resolution techniques and applications to Sparse Approximation problems

Diego Delle Done (LIX, CNRS - École Polytechnique; L2S)
February 14, 2020 — 11:00 — Location: Salle des séminaires du L2S, C4.01


Semiparametric inference in elliptical distributions - lower bounds and efficient estimators.

Stefano Fortunati (L2S, CentraleSupélec)
January 31, 2020 — 11:00 — Location: Salle des séminaires du L2S, C4.01


6G - Super-connecting the connected and connecting the unconnected

Prof. Slim Alouini (King Abdullah University of Science and Technology)
January 31, 2020 — 11:00 — Location: D2.06, Breguet building, CentraleSupélec


2019

An overview of cointegration tests in the time and frequency domains

Igor Viveiros Melo Souza (Federal,University of Belo Horizonte, Brazil)
December 16, 2019 — 16:45 — Location: F3.05, Breguet building, CentraleSupélec


Vascular networks, from low-level vision to generative models

Hugues Talbot (CVN, CentraleSupélec, INRIA, Université Paris-Saclay)
November 27, 2019 — 11:00 — Location: Salle des séminaires du L2S


Computational characterization of supra-threshold hearing to understand speech-in-noise intelligibility deficits

Emmanuel Ponsot (Laboratoire des Systèmes Perceptifs, ENS)
November 20, 2019 — 11:00 — Location: Salle des séminaires du L2S


Test d'hypothèses bayésien non paramétrique et application à la modélisation de la zone du langage

Diarra Fall (Institut Denis Poisson, UMR CNRS, Université d’Orléans et de Tours)
October 18, 2019 — 11:00 — Location: Salle des séminaires du L2S


Safe squeezing for antisparse coding

Clément Elvira (PANAMA research group, Iniria, CNRS, IRISA - Rennes)
October 04, 2019 — 14:00 — Location: None


Segmentation-déconvolution d'images texturées - gestion des incertitudes par une approche bayésienne hiérarchique et un échantillonnage stochastique

Jean-François Giovannelli (Prof. à l’université de Bordeaux (IMS Lab))
July 09, 2019 — 16:30 — Location: Amphitéatre Janet (bât. Breguet)


Advances in data processing and machine learning in camera networks

Hichem Snoussi (Prof. à l’université de technologique de Troyes)
July 09, 2019 — 15:30 — Location: Amphitéatre Janet (bât. Breguet)


A Bayesian deep learning approach in thermal remote imaging with hyper-resolution

Ning Chu (Institute of process equipment, College of Energy Engineering, Zhejiang University (Hangzhou, China))
July 09, 2019 — 10:30 — Location: Salle du conseil du L2S


Décrypter le langage sonore des animaux - De la technologie du signal vers l'éthologie animale et l'éthologie homme animal

Fabienne Delfour et Pascal Betremieux (LEEC Paris 13 et Dolhom)
June 14, 2019 — 11:00 — Location: Salle du conseil du L2S


Distributed Active and Passive MIMO Radar

Braham Himed (Air Force Research Laboratory, Sensors Directorate, RF Technology Branch, Dayton, Ohio)
June 12, 2019 — 14:00 — Location: Amphitéatre Janet (bât. Bréguet)


2018

Bilevel optimisation approaches for learning the optimal noise model in mixed and non-standard image denoising applications

Luca Calatroni (CMAP, École Polytechnique)
December 04, 2018 — 10:30 — Location: Salle du conseil du L2S


A dual certificates analysis of compressive off-the-grid recovery

Nicolas Keriven (Ecole Normale Supérieure)
October 05, 2018 — 10:30 — Location: Salle du conseil du L2S


A new fast and robust bootstrap method for statistical inference in ICA using the FastICA

Shahab Basiri (Department of Signal Processing and Acoustics, Aalto University, Finland)
June 01, 2018 — 14:30 — Location: Salle des séminaires du L2S (C4.01)


Groupwise registration of cardiac perfusion MRI sequences using mutual information in high dimension

Sameh Hamrouni (GE Healthcare)
May 16, 2018 — 10:30 — Location: Salle du conseil du L2S


Divergent-beam backprojection-filtration formula with applications to region-of-interest imaging

Aymeric Reshef (GE Healthcare)
May 16, 2018 — 10:30 — Location: Salle du conseil du L2S


AI4SAR- Artificial Intelligence for Synthetic Aperture Radar

Mihai Datcu (Remote Sensing Technology Institute (IMF), German Aerospace Center (DLR), University Politechnica Bucharest (UPB))
May 04, 2018 — 11:00 — Location: Salle du conseil du L2S


Décomposition spectroscopique en imagerie multispectrale

Vincent Mazet and Hassan Mortada (ICube / équipe IMAGeS / groupe IPSEO, Université de Strasbourg)
April 06, 2018 — 10:30 — Location: Salle du conseil du L2S


Chauves-souris, écholocation et neuroscience computationnelle - que nous disent les bornes de Cramer-Rao ?

Didier Mauuary (BLUEBAT)
March 09, 2018 — 10:30 — Location: Salle du conseil du L2S


An application of the GAM-PCA-VAR model to respiratory disease and air pollution data

Valderio Reisen and Marton Ispany ()
January 26, 2018 — 10:30 — Location: Salle du conseil du L2S


Analyse des performances en estimation paramétrique à l'aide des bornes inférieures de l'erreur quadratique moyenne

Alexandre Renaux (L2S, Université Paris Sud)
January 12, 2018 — 10:30 — Location: Salle du conseil du L2S


2017

Fourier transforms of polytopes and their role in Number Theory and Combinatorics

Sinai Robins (University of Sao Paulo, Sao Paulo, Brasil and Brown University, Providence, USA)
December 21, 2017 — 11:15 — Location: Salle du conseil du L2S


On the polynomial part of a restricted partition function

Karl Dilcher (Dalhousie University, Halifax, Canada)
December 21, 2017 — 10:30 — Location: Salle du conseil du L2S


Non-negative orthogonal greedy algorithms for sparse approximation

Thanh T. Nguyen (CRAN, L2S)
December 08, 2017 — 10:30 — Location: None


A Random Block-Coordinate Douglas-Rachford Splitting Method with Low Computational Complexity for Binary Logistic Regression

Émilie Chouzenoux (CVN, CentraleSupélec/INRIA, Université Paris-Est Marne-La-Vallée)
November 24, 2017 — 14:00 — Location: Salle du conseil du L2S


Estimation de l’intensité d’un processus de comptage en grande dimensionessus de comptage en grande dimension

Sarah Lemler (MICS, CentraleSupélec, Gif)
November 17, 2017 — 14:00 — Location: Salle du conseil du L2S


Differential Geometry for Statistical and Entropy-Based Inference

Jun Zhang (Department of Psychology and Department of Mathematics, University of Michigan-Ann Arbor)
November 03, 2017 — 10:30 — Location: Salle du conseil du L2S


Big Data in the Social Sciences- Statistical methods for multi-source high-dimensional data

Katrijn Van Deun (Tilburg University, the Netherlands)
October 06, 2017 — 10:00 — Location: Salle du conseil du L2S


Inversion de données en traitement du signal et des images - régularisation parcimonieuse et algorithmes de minimisation L0

Charles Soussen (Centre de Recherche en Automatique de Nancy (CRAN, UMR CNRS 7039), Université de Lorraine)
May 23, 2017 — 14:00 — Location: Salle du conseil du L2S


Deux trous noirs dans une meule de foin - analyse de données pour l'astronomie gravitationnelle

Eric Chassande-Mottin (CNRS, AstroParticule et Cosmologie, Université Paris Diderot)
May 19, 2017 — 10:30 — Location: Salle des séminaires du L2S (C4.01)


Extending Stationarity to Graph Signal Processing- a Model for Stochastic Graph Signals

Benjamin Girault (University of Southern California)
March 31, 2017 — 10:30 — Location: Salle du conseil du L2S


Novel Algorithms for Automated Diagnosis of Neurological and Psychiatric Disorders.

Hojjat ADELI (The Ohio State University, Columbus, USA)
March 28, 2017 — 10:30 — Location: Salle du conseil du L2S


Stochastic proximal algorithms with applications to online image recovery

Jean-Christophe Pesquet (CVN, Centralesupélec)
March 24, 2017 — 11:00 — Location: Salle du conseil du L2S


On Electromagnetic Modeling and Imaging of Defects in Periodic Fibered Laminates.

Zicheng LIU (Inverse problems Group, Signals and Statistics Division, L2S Laboratory)
March 10, 2017 — 11:15 — Location: Salle du conseil du L2S


On Imaging Methods of Material Structures with Different Boundary Conditions.

Xiuzhu YE (Beihang University, Beijing, China)
March 10, 2017 — 10:30 — Location: Salle du conseil du L2S


An alternative estimator for the number of factors for high-dimensional time series. A robust approach.

Valderio Reisen (Federal University of Espı́rito Santo, Brazil)
February 27, 2017 — 10:30 — Location: Salle du conseil du L2S


FastText- A library for efficient learning of word representations and sentence classification.

Piotr Bojanowski (Facebook AI Research)
February 24, 2017 — 10:30 — Location: Salle du conseil du L2S


Stochastic Quasi-Newton Langevin Monte Carlo

Umut Şimşekli (LTCI, Télécom ParisTech)
February 10, 2017 — 10:30 — Location: Salle du conseil du L2S


Detecting confounding in multivariate linear models via spectral analysis

Dominik Janzing (Max Planck Institute for Intelligent Systems)
January 31, 2017 — 10:30 — Location: Salle du conseil du L2S


Adapting to unknown noise level in super-resolution

Claire Boyer (LSTA, UPMC)
January 27, 2017 — 10:30 —


Inverse problems for speech production

Benjamin Elie (LORIA et IADI)
January 27, 2017 — 10:30 — Location: Salle du conseil du L2S


2016

The method of brackets (MOB) and integrating by differentiating (IBD)

Lin Jiu (RISC, Linz)
December 09, 2016 — 10:30 — Location: Salle du conseil du L2S


High dimensional sampling with the Unadjusted Langevin Algorithm

Alain Durmus (LTCI, Telecom ParisTech)
November 23, 2016 — 10:30 — Location: Salle du conseil du L2S


Algorithmes d’estimation et de détection en contexte hétérogène rang faible

Arnaud Breloy (Université Paris-Nanterre, FR)
November 06, 2016 — 10:30 — Location: None


Material-by-Design for Synthesis, Modeling, and Simulation of Innovative Systems and Devices

Giacomo Oliveri (ELEDIA, University of Trento)
September 30, 2016 — 10:30 — Location: Salle du conseil du L2S


Sound field recording and reproduction and its extension to super-resolution

Shoichi Koyama (University of Tokyo)
June 03, 2016 — 10:30 — Location: Salle des séminaires du L2S (C4.01)


Condition monitoring using vibration signals

Asoke K. Nandi (Brunel University London, UK)
May 24, 2016 — 10:30 — Location: Salle des séminaires du L2S (C4.01)


Time Frequency Array Signal Processing- Multi-Dimensional processing for non-stationary signals

Adel Belouchrani (Ecole Nationale Polytechnique, Alger)
May 20, 2016 — 10:30 — Location: Salle du conseil du L2S


Topological Pattern Selection in Recurrent Networks

Alireza Bahraini (Sharif University)
April 01, 2016 — 10:30 — Location: Salle du conseil du L2S


Solving large-scale inverse problems using forward-backward based methods

Audrey Repetti (Heriot-Watt university, Edinburgh)
March 11, 2016 — 10:30 — Location: Salle du conseil du L2S


Data-driven, Interactive Scientific Articles in a Collaborative Environment with Authorea

Nathan Jenkins (Authorea)
March 04, 2016 — 10:30 — Location: Salle du conseil du L2S


Robust spectral estimators for long-memory processes- Time and frequency domain approaches

Valdério Anselmo Reisen (DEST-PPGEA-PPGECON-UFES, ES-Brazil)
January 29, 2016 — 10:30 — Location: Salle des séminaires du L2S (C4.01)


A Two-Round Interactive Receiver Cooperation Scheme for Multicast Channels

Victor Exposito (CentraleSupelec L2S, Gif-sur-Yvette, Mitsubishi R&DCentre Europe, Rennes, France)
January 15, 2016 — 10:30 — Location: Salle des séminaires du L2S (C4.01)


2015

Gegenbauer polynomials and positive definiteness

Christian Berg (University of Copenhagen, Denmark)
November 27, 2015 — 10:30 — Location: None


Bayesian Fusion of Multiple Images - Beyond Pansharpening

Jean-Yves Tourneret (Université de Toulouse, FR)
November 13, 2015 — 10:30 — Location: None


Bayesian Tomography

John Skilling (Maximum Entropy Data Consultants Ltd, UK)
September 25, 2015 — 10:30 — Location: None


Is the Gaussian distribution

Ercan E. Kuruoglu (Istituto di Scienza e Tecnologie dell’Informazione, Italy)
September 18, 2015 — 10:30 — Location: None


The method of brackets

Victor H. Moll (Departement of Mathematics, Tulane University, New Orleans, USA)
July 03, 2015 — 10:30 — Location: None


Un modèle stochastique de la transcription d’un gène

Marc R. Roussel (University of Lethbridge, Alberta, Canada)
June 26, 2015 — 10:30 — Location: None


High dimensional minimum risk portfolio optimization

Liusha Yang (Department of Electronic and Computer Engineering, Hong Kong University of Science and Technology)
June 26, 2015 — 10:30 — Location: None


Stability of continuous-time quantum filters

Nina H. Amini (CNRS, Laboratoire des Signaux et Systèmes, France)
June 19, 2015 — 10:30 — Location: None


Bayesian Cyclic Networks, Mutual Information and Reduced-Order Bayesian Inference

Robert Niven (University of New South Wales, Canberra, Australia)
June 17, 2015 — 10:30 — Location: None


Modeling and mismodeling in radar applications- parameter estimation and bounds

Maria S. Greco (Department of Information Engineering, University of Pisa, Italy)
June 09, 2015 — 10:30 — Location: None


The NRL multi-aperture SAR- system description and recent results

Luke Rosenberg (DSTO, Australia)
May 26, 2015 — 10:30 — Location: None


Working memory in random neural networks

Gilles Wainrib (Ecole Normale Supérieure, Computer Science Department, FR)
April 03, 2015 — 10:30 — Location: None


Inverse problems in signal and image processing and Bayesian inference framework- from basic to advanced Bayesian computation

Ali Mohammad-Djafari (CNRS, L2S, FR)
March 27, 2015 — 10:30 — Location: None


Analysis of remote sensing multi-sensor heterogeneous images

Jorge Prendes (IRIT, University of Toulouse and SONDRA, CentraleSupelec, FR)
March 20, 2015 — 10:30 — Location: None


Rare event simulation- a Point Process interpretation with application in probability and quantile estimation

Clément Walter (CEA, DAM, DIF and Université Paris Diderot, Paris, FR)
March 13, 2015 — 10:30 — Location: None


L0 optimization for DOA and channel sparse estimation

Adilson Chinatto (University of Campinas, BR and ENS Cachan, FR)
March 06, 2015 — 10:30 — Location: None


Structured data analysis

Arthur Tenenhaus (CentraleSupelec, Laboratoire des Signaux et Systèmes, France)
February 13, 2015 — 10:30 — Location: None


Signal Processing meets Immunology- Towards a Hepatitis C Vaccine via High-Dimensional Covariance Estimation

Matthew McKay (Hong Kong University of Science and Technology)
February 03, 2015 — 10:30 — Location: None


Robust approaches to multichannel sparse recovery

Esa Ollila (Aalto University, Finland)
February 03, 2015 — 10:30 — Location: None


Poisson INAR processes with serial and seasonal correlation

Márton Ispány (University of Debrecen, Hungary)
January 30, 2015 — 10:30 — Location: None


A new covariance function for spatio-temporal data analysis with application to atmospheric pollution and sensor networking

György Terdik (University of Debrecen, Hungary)
January 30, 2015 — 10:30 — Location: None


Correlation mining in high dimension with limited samples

Alfred Hero (University of Michigan, Ann Arbor, MI, USA)
January 30, 2015 — 10:30 — Location: None