Publications

Santé publique et épidémiologie

Étude descriptive des participants aux ateliers de prévention du "bien vieillir atout âge" à la Réunion [Poster]

F. Legrand, J.M. Eychene, A. Nicolai, J. Audiffren, C. Ciman, Armelle Klein, C. Labourdette, L. Oudre, N. Vayatis, P.P. Vidal, Frédéric Sandron

Journées Annuelles de la Société Française de Gériatrie et Gérontologie - 2019

Life Sciences

Posterior Fossa Arachnoid Cyst in a Pediatric Population is Associated with Social Perception and Rest Cerebral Blood Flow Abnormalities

Posterior fossa arachnoid cysts (PFAC) may produce not only neurological symptoms but also other symptoms still poorly understood such as behavioral and learning deficits, awkwardness, and difficulties in social interaction. These subtle social…

Elza Rechtman, Stephanie Puget, Ana Saitovitch, Hervé Lemaitre, Ludovic Fillion, Jean-Marc Tacchella, Jennifer Boisgontier, Marie-Laure Cuny, Nathalie Boddaert, Monica Zilbovicius

The Cerebellum - 2019

Image Processing

A Novel Activity Detector Applied to Sentinel-1 for Surveillance

Change detection is the challenging process of identifying meaningful changes on an image sequence. In this work, we propose a new change detector for SAR images. We show that by controlling the a priori number of false alarms, one can detect events…

Axel Davy, Max Dunitz

39th IEEE International Geoscience and Remote Sensing Symposium (IGARSS 2019) - 2019

Fluid mechanics

Analysis of aortic pressure fields from 4D flow MRI in healthy volunteers: Associations with age and left ventricular remodeling

Background: Aging-related arterial stiffness is associated with substantial changes in global and local arterial pressures. The subsequent early return of reflected pressure waves leads to an elevated left ventricular (LV) afterload and ultimately…

Kevin Bouaou, Ioannis Bargiotas, Thomas Dietenbeck, Emilie Bollache, Gilles Soulat, Damian Craiem, Sophia Houriez-Gombaud-Saintonge, Alain de Cesare, Umit Genser, Alain Giron, Alban Redheuil, Emmanuel Messas, Didier Lucor, Elie Mousseaux, Nadjia Kachenoura

Journal of Magnetic Resonance Imaging - 2019

Statistics

Categorized Bandits

We introduce a new stochastic multi-armed bandit setting where arms are grouped inside ``ordered'' categories. The motivating example comes from e-commerce, where a customer typically has a greater appetence for items of a specific well-identified…

Matthieu Jedor, Jonathan Louëdec, Vianney Perchet

Advances in Neural Information Processing Systems - 2019

Mathematics

Interpolating between Optimal Transport and MMD using Sinkhorn Divergences

Comparing probability distributions is a fundamental problem in data sciences. Simple norms and divergences such as the total variation and the relative entropy only compare densities in a point-wise manner and fail to capture the geometric nature…

Jean Feydy, Thibault Séjourné, François-Xavier Vialard, Shun-Ichi Amari, Alain Trouvé, Gabriel Peyré

AISTATS - 2019

Mathematics

Energy-optimal strokes for multi-link microswimmers: Purcell's loops and Taylor's waves reconciled

Abstract Micron-scale swimmers move in the realm of negligible inertia, dominated by viscous drag forces. In this paper, we formulate the leading-order dynamics of a slender multi-link ( N -link) microswimmer assuming small-amplitude undulations…

François Alouges, Antonio Desimone, Laetitia Giraldi, Yizhar Or, Oren Wiezel

New Journal of Physics - 2019

Bioengineering

Comparing Gait Trials with Greedy Template Matching

Aliénor Vienne-Jumeau, Laurent Oudre, Albane Moreau, Flavien Quijoux, Pierre-Paul Vidal, Damien Ricard

Sensors - 2019

Mathematics

Novel insight on molecular dynamics trajectories : local equilibrium viewed by kappa-segmentation

Molecular dynamics (MD) simulations can produce nowadays huge amount of data using high-throughput CPU/GPU clusters. However, the systematic and routine use of MD simulations for a study of the large molecules of real biological systems is still…

Sharad Goulam, Luba Tchertanov, Alain Trouvé

JOBIM 2019 - 2019

Methodology

Patch redundancy in images: a statistical testing framework and some applications

In this work we introduce a statistical framework in order to analyze the spatial redundancy in natural images. This notion of spatial redundancy must be defined locally and thus we give some examples of functions (auto-similarity and template…

Valentin de Bortoli, Agnès Desolneux, Bruno Galerne, Arthur Leclaire

SIAM Journal on Imaging Sciences - 2019