Search Results for author: Hedi Tabia

Found 17 papers, 6 papers with code

RRR-Net: Reusing, Reducing, and Recycling a Deep Backbone Network

no code implementations2 Oct 2023 Haozhe Sun, Isabelle Guyon, Felix Mohr, Hedi Tabia

It has become mainstream in computer vision and other machine learning domains to reuse backbone networks pre-trained on large datasets as preprocessors.

Image Classification

Efficient Automation of Neural Network Design: A Survey on Differentiable Neural Architecture Search

no code implementations11 Apr 2023 Alexandre Heuillet, Ahmad Nasser, Hichem Arioui, Hedi Tabia

In the past few years, Differentiable Neural Architecture Search (DNAS) rapidly imposed itself as the trending approach to automate the discovery of deep neural network architectures.

Evolutionary Algorithms Neural Architecture Search

Kernel function impact on convolutional neural networks

no code implementations20 Feb 2023 M. Amine Mahmoudi, Aladine Chetouani, Fatma Boufera, Hedi Tabia

This paper investigates the usage of kernel functions at the different layers in a convolutional neural network.

Alphazzle: Jigsaw Puzzle Solver with Deep Monte-Carlo Tree Search

no code implementations1 Feb 2023 Marie-Morgane Paumard, Hedi Tabia, David Picard

Solving jigsaw puzzles requires to grasp the visual features of a sequence of patches and to explore efficiently a solution space that grows exponentially with the sequence length.

NASiam: Efficient Representation Learning using Neural Architecture Search for Siamese Networks

1 code implementation31 Jan 2023 Alexandre Heuillet, Hedi Tabia, Hichem Arioui

In this article, we present NASiam, a novel approach that uses for the first time differentiable NAS to improve the multilayer perceptron projector and predictor (encoder/predictor pair) architectures inside siamese-networks-based contrastive learning frameworks (e. g., SimCLR, SimSiam, and MoCo) while preserving the simplicity of previous baselines.

Contrastive Learning Evolutionary Algorithms +3

Learnable Triangulation for Deep Learning-based 3D Reconstruction of Objects of Arbitrary Topology from Single RGB Images

no code implementations24 Sep 2021 Tarek Ben Charrada, Hedi Tabia, Aladine Chetouani, Hamid Laga

It is composed of of (1) a Vertex Generation Network (VGN), which predicts the initial 3D locations of the object's vertices from an input RGB image, (2) a differentiable triangulation layer, which learns in a non-supervised manner, using a novel reinforcement learning algorithm, the best triangulation of the object's vertices, and finally, (3) a hierarchical mesh refinement network that uses graph convolutions to refine the initial mesh.

3D Object Reconstruction 3D Reconstruction +2

D-DARTS: Distributed Differentiable Architecture Search

1 code implementation20 Aug 2021 Alexandre Heuillet, Hedi Tabia, Hichem Arioui, Kamal Youcef-Toumi

This approach is accompanied by a novel metric that measures the distance between architectures inside our custom search space.

Neural Architecture Search

Kernelized dense layers for facial expression recognition

no code implementations22 Sep 2020 M. Amine Mahmoudi, Aladine Chetouani, Fatma Boufera, Hedi Tabia

Fully connected layer is an essential component of Convolutional Neural Networks (CNNs), which demonstrates its efficiency in computer vision tasks.

Facial Expression Recognition Facial Expression Recognition (FER)

SSP-Net: Scalable Sequential Pyramid Networks for Real-Time 3D Human Pose Regression

no code implementations4 Sep 2020 Diogo Luvizon, Hedi Tabia, David Picard

In this paper we propose a highly scalable convolutional neural network, end-to-end trainable, for real-time 3D human pose regression from still RGB images.

3D Human Pose Estimation 3D Pose Estimation +1

Deepzzle: Solving Visual Jigsaw Puzzles with Deep Learning andShortest Path Optimization

no code implementations26 May 2020 Marie-Morgane Paumard, David Picard, Hedi Tabia

We use a two-step method to obtain the reassemblies: 1) a neural network predicts the positions of the fragments despite the gaps between them; 2) a graph that leads to the best reassemblies is made from these predictions.

Multi-task Deep Learning for Real-Time 3D Human Pose Estimation and Action Recognition

1 code implementation15 Dec 2019 Diogo C. Luvizon, Hedi Tabia, David Picard

In this work, we propose a multi-task framework for jointly estimating 2D or 3D human poses from monocular color images and classifying human actions from video sequences.

3D Human Pose Estimation Action Recognition +1

Human Pose Regression by Combining Indirect Part Detection and Contextual Information

1 code implementation6 Oct 2017 Diogo C. Luvizon, Hedi Tabia, David Picard

In this paper, we propose an end-to-end trainable regression approach for human pose estimation from still images.

Pose Estimation regression

Covariance Descriptors for 3D Shape Matching and Retrieval

no code implementations CVPR 2014 Hedi Tabia, Hamid Laga, David Picard, Philippe-Henri Gosselin

We evaluate the performance of the proposed Bag of Covariance Matrices framework on 3D shape matching and retrieval applications and demonstrate its superiority compared to descriptor-based techniques.

Clustering Retrieval

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