no code implementations • 6 Sep 2023 • Louis Ohl, Pierre-Alexandre Mattei, Charles Bouveyron, Warith Harchaoui, Mickaël Leclercq, Arnaud Droit, Frédéric Precioso
In the last decade, recent successes in deep clustering majorly involved the Mutual Information (MI) as an unsupervised objective for training neural networks with increasing regularisations.
no code implementations • Interspeech 2023 • Baptiste Pouthier, Laurent Pilati, Giacomo Valenti, Charles Bouveyron, Frederic Precioso
Standard Visual Speech Recognition (VSR) systems directly process images as input features without any apriori link between raw pixel data and facial traits.
Ranked #3 on Landmark-based Lipreading on LRW
no code implementations • 14 Apr 2023 • Rémi Boutin, Pierre Latouche, Charles Bouveyron
To understand those heterogeneous and complex data structures, clustering nodes into homogeneous groups as well as rendering a comprehensible visualisation of the data is mandatory.
no code implementations • 15 Feb 2023 • Aude Sportisse, Hugo Schmutz, Olivier Humbert, Charles Bouveyron, Pierre-Alexandre Mattei
Semi-supervised learning is a powerful technique for leveraging unlabeled data to improve machine learning models, but it can be affected by the presence of ``informative'' labels, which occur when some classes are more likely to be labeled than others.
no code implementations • 7 Feb 2023 • Louis Ohl, Pierre-Alexandre Mattei, Charles Bouveyron, Mickaël Leclercq, Arnaud Droit, Frédéric Precioso
Feature selection in clustering is a hard task which involves simultaneously the discovery of relevant clusters as well as relevant variables with respect to these clusters.
1 code implementation • 12 Oct 2022 • Louis Ohl, Pierre-Alexandre Mattei, Charles Bouveyron, Warith Harchaoui, Mickaël Leclercq, Arnaud Droit, Frederic Precioso
In the last decade, recent successes in deep clustering majorly involved the mutual information (MI) as an unsupervised objective for training neural networks with increasing regularisations.
no code implementations • 7 Jun 2021 • Baptiste Pouthier, Laurent Pilati, Leela K. Gudupudi, Charles Bouveyron, Frederic Precioso
It is now well established from a variety of studies that there is a significant benefit from combining video and audio data in detecting active speakers.
Active Speaker Detection Audio-Visual Active Speaker Detection
no code implementations • 3 Feb 2021 • Michael Fop, Pierre-Alexandre Mattei, Charles Bouveyron, Thomas Brendan Murphy
In supervised classification problems, the test set may contain data points belonging to classes not observed in the learning phase.
no code implementations • 1 Jan 2021 • Dingge LIANG, Marco Corneli, Pierre Latouche, Charles Bouveyron
The underlying motivation is that, when a user scores only a few products, the texts used in the reviews represent a significant source of information.
no code implementations • 8 Dec 2020 • Nicolas Jouvin, Charles Bouveyron, Pierre Latouche
High-dimensional data clustering has become and remains a challenging task for modern statistics and machine learning, with a wide range of applications.
Image Denoising Methodology
no code implementations • 8 Mar 2017 • Charles Bouveyron, Pierre Latouche, Pierre-Alexandre Mattei
We present a Bayesian model selection approach to estimate the intrinsic dimensionality of a high-dimensional dataset.
no code implementations • 19 May 2016 • Charles Bouveyron, Pierre Latouche, Pierre-Alexandre Mattei
To this end, using Roweis' probabilistic interpretation of PCA and a Gaussian prior on the loading matrix, we provide the first exact computation of the marginal likelihood of a Bayesian PCA model.