Search Results for author: Stéphane Ayache

Found 10 papers, 2 papers with code

CA-Stream: Attention-based pooling for interpretable image recognition

no code implementations23 Apr 2024 Felipe Torres, Hanwei Zhang, Ronan Sicre, Stéphane Ayache, Yannis Avrithis

Explanations obtained from transformer-based architectures in the form of raw attention, can be seen as a class-agnostic saliency map.

DP-Net: Learning Discriminative Parts for image recognition

no code implementations23 Apr 2024 Ronan Sicre, Hanwei Zhang, Julien Dejasmin, Chiheb Daaloul, Stéphane Ayache, Thierry Artières

This paper presents Discriminative Part Network (DP-Net), a deep architecture with strong interpretation capabilities, which exploits a pretrained Convolutional Neural Network (CNN) combined with a part-based recognition module.

Towards the generation of synchronized and believable non-verbal facial behaviors of a talking virtual agent

1 code implementation15 Sep 2023 Alice Delbosc, Magalie Ochs, Nicolas Sabouret, Brian Ravenet, Stéphane Ayache

This paper introduces a new model to generate rhythmically relevant non-verbal facial behaviors for virtual agents while they speak.

Implicit Regularization in Deep Tensor Factorization

no code implementations4 May 2021 Paolo Milanesi, Hachem Kadri, Stéphane Ayache, Thierry Artières

Attempts of studying implicit regularization associated to gradient descent (GD) have identified matrix completion as a suitable test-bed.

Matrix Completion

Partial Trace Regression and Low-Rank Kraus Decomposition

1 code implementation ICML 2020 Hachem Kadri, Stéphane Ayache, Riikka Huusari, Alain Rakotomamonjy, Liva Ralaivola

The trace regression model, a direct extension of the well-studied linear regression model, allows one to map matrices to real-valued outputs.

Matrix Completion regression

Mapping individual differences in cortical architecture using multi-view representation learning

no code implementations1 Apr 2020 Akrem Sellami, François-Xavier Dupé, Bastien Cagna, Hachem Kadri, Stéphane Ayache, Thierry Artières, Sylvain Takerkart

In neuroscience, understanding inter-individual differences has recently emerged as a major challenge, for which functional magnetic resonance imaging (fMRI) has proven invaluable.

Representation Learning

Deep Networks with Adaptive Nyström Approximation

no code implementations29 Nov 2019 Luc Giffon, Stéphane Ayache, Thierry Artières, Hachem Kadri

Recent work has focused on combining kernel methods and deep learning to exploit the best of the two approaches.

Majority Vote of Diverse Classifiers for Late Fusion

no code implementations30 Apr 2014 Emilie Morvant, Amaury Habrard, Stéphane Ayache

Our method is based on an order-preserving pairwise loss adapted to ranking that allows us to improve Mean Averaged Precision measure while taking into account the diversity of the voters that we want to fuse.

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