Publications

Computer Science

Data Clustering and Representation Learning Based on Networked Data

Abstract To deal simultaneously with both, the attributed network embedding and clustering, we propose a new model exploiting both content and structure information. The proposed model relies on the approximation of the relaxed continuous embedding…

Lazhar Labiod, Mohamed Nadif

The 17th conference of the International Federation of Classification Societies , 2022 - 2023

Neuroscience

Tilt perception is different in the pitch and roll planes in human

Neurophysiological tests probing the vestibulo-ocular, colic and spinal pathways are the gold standard to evaluate the vestibular system in clinics. In contrast, vestibular perception is rarely tested despite its potential usefulness in professional…

Dimitri Keriven Serpollet, David Hartnagel, Yannick James, Stéphane Buffat, Nicolas Vayatis, Ioannis Bargiotas, Pierre‐paul Vidal

Physiological Reports - 2023

Computer Science

Towards a Bi-Stochastic Matrix Approximation of k-means and Some Variants

Abstract The k -means algorithm and some k -means variants have been shown to be useful and effective to tackle the clustering problem. In this paper we embed k -means variants in a bi-stochastic matrix approximation (BMA) framework. Then we derive…

Lazhar Labiod, Mohamed Nadif

The 17th conference of the International Federation of Classification Societies, IFCS 2022 - 2023

Computer Science

Latent Block Regression Model

Abstract When dealing with high dimensional sparse data, such as in recommender systems,co-clustering turns out to be more beneficial than one-sided clustering, even if one is interested in clustering along one dimension only. Thereby, co…

Rafika Boutalbi, Lazhar Labiod, Mohamed Nadif

The 17th conference of the International Federation of Classification Societies - 2023

Mathematics

Convergence rates and approximation results for SGD and its continuous-time counterpart

This paper proposes a thorough theoretical analysis of Stochastic Gradient Descent (SGD) with non-increasing step sizes. First, we show that the recursion defining SGD can be provably approximated by solutions of a time inhomogeneous Stochastic…

Xavier Fontaine, Valentin de Bortoli, Alain Durmus

Quantum Physics

Quantum fluctuations induce collective multi-phonons in finite Fermi liquids

We show that collective multi-phonon states in atomic nuclei emerge at high excitation energies when quantum fluctuations are included beyond the independent particle approximation. The quadrupole response of a nucleus is studied using an extension…

Petar Marević, David Regnier, Denis Lacroix

Physical Review C - 2023

Analysis of PDEs

Massively parallel computation of globally optimal shortest paths with curvature penalization

We address the computation of paths globally minimizing an energy involving their curvature, with given endpoints and tangents at these endpoints, according to models known as the Reeds-Shepp car (reversible or forward only), the Euler-Mumford…

Jean-Marie Mirebeau, Lionel Gayraud, Rémi Barrère, Da Chen, François Desquilbet

Concurrency and Computation: Practice and Experience - 2023

Neuroscience

Temporo-basal sulcal connections: a manual annotation protocol and an investigation of sexual dimorphism and heritability

The temporo-basal region of the human brain is composed of the collateral, the occipitotemporal, and the rhinal sulci. We manually rated (using a novel protocol) the connections between rhinal/collateral (RS-CS), collateral/occipito-temporal (CS-OTS…

Kevin de Matos, Claire Cury, Lydia Chougar, Lachlan T Strike, Thibault Rolland, Maximilien Riche, Lisa Hemforth, Alexandre Martin, Tobias Banaschewski, Arun L W Bokde, Sylvane Desrivières, Herta Flor, Antoine Grigis, Hugh Garavan, Penny Gowland, Andreas Heinz, Rüdiger Brühl, Jean-Luc Martinot, Marie-Laure Paillère Martinot, Eric Artiges, Frauke Nees, Juliane H Fröhner, Herve Lemaitre, Dimitri Papadopoulos Orfanos, Tomáš Paus, Luise Poustka, Sarah Hohmann, Sabina Millenet, Juliane H Fröhner, Michael N Smolka, Nilakshi Vaidya, Henrik Walter, Robert Whelan, Gunter Schumann, Vincent Frouin, Meritxell Bach Cuadra, Olivier Colliot, Baptiste Couvy-Duchesne

Brain Structure and Function - 2023

Neurobiology

Interpretable automatic detection of incomplete hippocampal inversions using anatomical criteria

Incomplete Hippocampal Inversion (IHI) is an atypical anatomical pattern of the hippocampus that has been associated with several brain disorders (epilepsy, schizophrenia). IHI can be visually detected on coronal T1 weighted MRI images. IHI can be…

Lisa J Hemforth, Claire Cury, Vincent Frouin, Sylvane Desrivières, Antoine Grigis, Hugh Garavan, Rüdiger Brühl, Jean-Luc Martinot, Marie-Laure Paillère Martinot, Eric Artiges, Luise Poustka, Sarah Hohmann, Sabina Millenet, Nilakshi Vaidya, Henrik Walter, Robert Whelan, Gunter Schumann, Baptiste Couvy-Duchesne, Olivier Colliot

SPIE Medical Imaging 2023 - 2023

Cognitive science

A heartbeat-based study of attention in the detection of digital alarms from focused and distributed supervisory control systems

Frédéric Vanderhaegen, M. Wolff, R. Mollard

Cognition, Technology and Work - 2023