Search Results for author: Sylvain Chevallier

Found 18 papers, 11 papers with code

The largest EEG-based BCI reproducibility study for open science: the MOABB benchmark

1 code implementation Journal of Neural Engineering 2024 Sylvain Chevallier, Igor Carrara, Bruno Aristimunha, Pierre Guetschel, Sara Sedlar, Bruna Junqueira Lopes, Sébastien Velut, Salim Khazem, Thomas Moreau

The significance of this study lies in its contribution to establishing a rigorous and transparent benchmark for BCI research, offering insights into optimal methodologies and highlighting the importance of reproducibility in driving advancements within the field.

EEG Motor Imagery +2

Geometric Neural Network based on Phase Space for BCI decoding

no code implementations8 Mar 2024 Igor Carrara, Bruno Aristimunha, Marie-Constance Corsi, Raphael Y. de Camargo, Sylvain Chevallier, Théodore Papadopoulo

\textbf{Approach:} Our research aims to develop a DL algorithm that delivers effective results with a limited number of electrodes.

Brain Computer Interface EEG

Evaluating the structure of cognitive tasks with transfer learning

no code implementations28 Jul 2023 Bruno Aristimunha, Raphael Y. de Camargo, Walter H. Lopez Pinaya, Sylvain Chevallier, Alexandre Gramfort, Cedric Rommel

While transfer learning is a promising technique to address this challenge, it assumes that transferable data domains and task are known, which is not the case in this setting.

EEG Eeg Decoding +2

End-to-end P300 BCI using Bayesian accumulation of Riemannian probabilities

1 code implementation15 Mar 2022 Quentin Barthélemy, Sylvain Chevallier, Raphaëlle Bertrand-Lalo, Pierre Clisson

In brain-computer interfaces (BCI), most of the approaches based on event-related potential (ERP) focus on the detection of P300, aiming for single trial classification for a speller task.

Classification ERP

Functional connectivity ensemble method to enhance BCI performance (FUCONE)

1 code implementation4 Nov 2021 Marie-Constance Corsi, Sylvain Chevallier, Fabrizio De Vico Fallani, Florian Yger

Functional connectivity is a key approach to investigate oscillatory activities of the brain that provides important insights on the underlying dynamic of neuronal interactions and that is mostly applied for brain activity analysis.

Motor Imagery

Online SSVEP-based BCI using Riemannian geometry

2 code implementations Neurocomputing 2016 Emmanuel Kalunga, Sylvain Chevallier, Quentin Barthélemy, Karim Djouani, Eric Monacelli, Yskandar Hamam

We propose a novel algorithm for online and asynchronous processing of brain signals, borrowing principles from semi-unsupervised approaches and following a dynamic stopping scheme to provide a prediction as soon as possible.

EEG General Classification +1

Adaptive Visualisation System for Construction Building Information Models Using Saliency

no code implementations7 Mar 2016 Hugo Martin, Sylvain Chevallier, Eric Monacelli

Building Information Modeling (BIM) is a recent construction process based on a 3D model, containing every component related to the building achievement.

Using Riemannian geometry for SSVEP-based Brain Computer Interface

2 code implementations14 Jan 2015 Emmanuel K. Kalunga, Sylvain Chevallier, Quentin Barthelemy

Riemannian geometry has been applied to Brain Computer Interface (BCI) for brain signals classification yielding promising results.

EEG SSVEP

On the need for metrics in dictionary learning assessment

1 code implementation EUSIPCO 2014 Sylvain Chevallier, Quentin Barthélemy, Jamal Atif

Dictionary-based approaches are the focus of a growing attention in the signal processing community, often achieving state of the art results in several application fields.

Dictionary Learning

Subspace metrics for multivariate dictionaries and application to EEG

1 code implementation ICASSP 2014 Sylvain Chevallier, Quentin Barthélemy, Jamal Atif

Overcomplete representations and dictionary learning algorithms are attracting a growing interest in the machine learning community.

Clustering Dictionary Learning +1

Metrics for Multivariate Dictionaries

1 code implementation18 Feb 2013 Sylvain Chevallier, Quentin Barthélemy, Jamal Atif

Despite a recurrent need to rely on a distance for learning or assessing multivariate overcomplete representations, no metrics in their underlying spaces have yet been proposed.

Clustering Dictionary Learning +1

SpikeAnts, a spiking neuron network modelling the emergence of organization in a complex system

no code implementations NeurIPS 2010 Sylvain Chevallier, Hél\`Ene Paugam-Moisy, Michele Sebag

How to enforce such a division in a decentralized and distributed way, is tackled in this paper, using a spiking neuron network architecture.

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