Publications

Ecosystems

Hough transform implementation to evaluate the morphological variability of the moon jellyfish (Aurelia spp.)

Variations of the animal body plan morphology and morphometry can be used as prognostic tools of their habitat quality. The potential of the moon jellyfish (Aurelia spp.) as a new model organism has been poorly tested. However, as a tetramerous…

Céline Lacaux, Agnès Desolneux, Justine Gadreaud, Bertrand Martin-Garin, Alain Thiéry

General Mathematics

Bandit algorithms for recommender system optimization

In this PhD thesis, we study the optimization of recommender systems with the objective of providing more refined suggestions of items for a user to benefit.The task is modeled using the multi-armed bandit framework.In a first part, we look upon two…

Matthieu Jedor

General Mathematics

Sequential learning and stochastic optimization of convex functions

In this thesis we study several machine learning problems that are all linked with the minimization of a noisy function, which will often be convex.Inspired by real-life applications we focus on sequential learning problems which consist in treating…

Xavier Fontaine

Artificial Intelligence

Transfer Learning on Decision Tree with Class Imbalance

Ludovic Minvielle, Mounir Atiq, Sergio Peignier, Mathilde Mougeot

31st IEEE International Conference on Tools with Artificial Intelligence - 2019

Humanities and Social Sciences

Nonlocality Versus Modified Realism

Hervé Zwirn

Foundations of Physics - 2019

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