Search Results for author: Arnaud Dapogny

Found 35 papers, 3 papers with code

PIPE : Parallelized Inference Through Post-Training Quantization Ensembling of Residual Expansions

no code implementations27 Nov 2023 Edouard Yvinec, Arnaud Dapogny, Kevin Bailly

However, such techniques suffer from their lack of adaptability to the target devices, as a hardware typically only support specific bit widths.

Quantization

Archtree: on-the-fly tree-structured exploration for latency-aware pruning of deep neural networks

no code implementations17 Nov 2023 Rémi Ouazan Reboul, Edouard Yvinec, Arnaud Dapogny, Kevin Bailly

To solve this problem, a popular solution is DNN pruning, and more so structured pruning, where coherent computational blocks (e. g. channels for convolutional networks) are removed: as an exhaustive search of the space of pruned sub-models is intractable in practice, channels are typically removed iteratively based on an importance estimation heuristic.

Network Memory Footprint Compression Through Jointly Learnable Codebooks and Mappings

no code implementations29 Sep 2023 Edouard Yvinec, Arnaud Dapogny, Kevin Bailly

However, this led to an increase in the memory footprint, to a point where it can be challenging to simply load a model on commodity devices such as mobile phones.

Quantization

MultIOD: Rehearsal-free Multihead Incremental Object Detector

no code implementations11 Sep 2023 Eden Belouadah, Arnaud Dapogny, Kevin Bailly

The main challenge of incremental learning is catastrophic forgetting, the inability of neural networks to retain past knowledge when learning a new one.

Class Incremental Learning Incremental Learning +4

Gradient-Based Post-Training Quantization: Challenging the Status Quo

no code implementations15 Aug 2023 Edouard Yvinec, Arnaud Dapogny, Kevin Bailly

GPTQ essentially consists in learning the rounding operation using a small calibration set.

Quantization

NUPES : Non-Uniform Post-Training Quantization via Power Exponent Search

no code implementations10 Aug 2023 Edouard Yvinec, Arnaud Dapogny, Kevin Bailly

However, the optimization of the exponent parameter and weight values remains a challenging and novel problem which could not be solved with previous post training optimization techniques which only learn to round up or down weight values in order to preserve the predictive function.

Quantization

SAfER: Layer-Level Sensitivity Assessment for Efficient and Robust Neural Network Inference

no code implementations9 Aug 2023 Edouard Yvinec, Arnaud Dapogny, Kevin Bailly, Xavier Fischer

In this work, we propose to investigate DNN layer importance, i. e. to estimate the sensitivity of the accuracy w. r. t.

Autonomous Driving Quantization

Designing strong baselines for ternary neural network quantization through support and mass equalization

no code implementations30 Jun 2023 Edouard Yvinec, Arnaud Dapogny, Kevin Bailly

We show experimentally that our approach allows to significantly improve the performance of ternary quantization through a variety of scenarios in DFQ, PTQ and QAT and give strong insights to pave the way for future research in deep neural network quantization.

Quantization

Fighting over-fitting with quantization for learning deep neural networks on noisy labels

no code implementations21 Mar 2023 Gauthier Tallec, Edouard Yvinec, Arnaud Dapogny, Kevin Bailly

The rising performance of deep neural networks is often empirically attributed to an increase in the available computational power, which allows complex models to be trained upon large amounts of annotated data.

Action Unit Detection Facial Action Unit Detection +1

Fighting noise and imbalance in Action Unit detection problems

no code implementations6 Mar 2023 Gauthier Tallec, Arnaud Dapogny, Kevin Bailly

However, applying label smoothing as it is may aggravate imbalance-based pre-existing under-confidence issue and degrade performance.

Action Unit Detection

PowerQuant: Automorphism Search for Non-Uniform Quantization

no code implementations24 Jan 2023 Edouard Yvinec, Arnaud Dapogny, Matthieu Cord, Kevin Bailly

In this paper, we identity the uniformity of the quantization operator as a limitation of existing approaches, and propose a data-free non-uniform method.

Quantization

Multi-Task Transformer with uncertainty modelling for Face Based Affective Computing

no code implementations6 Aug 2022 Gauthier Tallec, Jules Bonnard, Arnaud Dapogny, Kévin Bailly

From a learning point of view we use an uncertainty weighted loss for modelling the difference of stochasticity between the three tasks annotations.

SInGE: Sparsity via Integrated Gradients Estimation of Neuron Relevance

no code implementations8 Jul 2022 Edouard Yvinec, Arnaud Dapogny, Matthieu Cord, Kevin Bailly

The leap in performance in state-of-the-art computer vision methods is attributed to the development of deep neural networks.

SPIQ: Data-Free Per-Channel Static Input Quantization

no code implementations28 Mar 2022 Edouard Yvinec, Arnaud Dapogny, Matthieu Cord, Kevin Bailly

Computationally expensive neural networks are ubiquitous in computer vision and solutions for efficient inference have drawn a growing attention in the machine learning community.

Data Free Quantization object-detection +2

To Fold or Not to Fold: a Necessary and Sufficient Condition on Batch-Normalization Layers Folding

1 code implementation28 Mar 2022 Edouard Yvinec, Arnaud Dapogny, Kevin Bailly

Batch-Normalization (BN) layers have become fundamental components in the evermore complex deep neural network architectures.

Privileged Attribution Constrained Deep Networks for Facial Expression Recognition

no code implementations24 Mar 2022 Jules Bonnard, Arnaud Dapogny, Ferdinand Dhombres, Kévin Bailly

Facial Expression Recognition (FER) is crucial in many research domains because it enables machines to better understand human behaviours.

Facial Expression Recognition Facial Expression Recognition (FER)

Multi-label Transformer for Action Unit Detection

no code implementations23 Mar 2022 Gauthier Tallec, Edouard Yvinec, Arnaud Dapogny, Kevin Bailly

Action Unit (AU) Detection is the branch of affective computing that aims at recognizing unitary facial muscular movements.

Action Unit Detection

Multi-Order Networks for Action Unit Detection

no code implementations1 Feb 2022 Gauthier Tallec, Arnaud Dapogny, Kevin Bailly

MONET uses a differentiable order selection to jointly learn task-wise modules with their optimal chaining order.

Action Unit Detection Attribute +2

RED : Looking for Redundancies for Data-FreeStructured Compression of Deep Neural Networks

no code implementations NeurIPS 2021 Edouard Yvinec, Arnaud Dapogny, Matthieu Cord, Kevin Bailly

Deep Neural Networks (DNNs) are ubiquitous in today's computer vision landscape, despite involving considerable computational costs.

RED++ : Data-Free Pruning of Deep Neural Networks via Input Splitting and Output Merging

no code implementations30 Sep 2021 Edouard Yvinec, Arnaud Dapogny, Matthieu Cord, Kevin Bailly

Pruning Deep Neural Networks (DNNs) is a prominent field of study in the goal of inference runtime acceleration.

RED : Looking for Redundancies for Data-Free Structured Compression of Deep Neural Networks

no code implementations31 May 2021 Edouard Yvinec, Arnaud Dapogny, Matthieu Cord, Kevin Bailly

Deep Neural Networks (DNNs) are ubiquitous in today's computer vision land-scape, despite involving considerable computational costs.

THIN: THrowable Information Networks and Application for Facial Expression Recognition In The Wild

no code implementations15 Oct 2020 Estephe Arnaud, Arnaud Dapogny, Kevin Bailly

Thus, the exogenous information is used two times in a throwable fashion, first as a conditioning variable for the target task, and second to create invariance within the endogenous representation.

Facial Expression Recognition Facial Expression Recognition (FER)

DeeSCo: Deep heterogeneous ensemble with Stochastic Combinatory loss for gaze estimation

no code implementations15 Apr 2020 Edouard Yvinec, Arnaud Dapogny, Kévin Bailly

In this paper, we introduce a deep, end-to-end trainable ensemble of heatmap-based weak predictors for 2D/3D gaze estimation.

Gaze Estimation

SEMEDA: Enhancing Segmentation Precision with Semantic Edge Aware Loss

no code implementations6 May 2019 Yifu Chen, Arnaud Dapogny, Matthieu Cord

As a result, the predictions outputted by such networks usually struggle to accurately capture the object boundaries and exhibit holes inside the objects.

Edge Detection Segmentation +1

DeCaFA: Deep Convolutional Cascade for Face Alignment In The Wild

no code implementations ICCV 2019 Arnaud Dapogny, Kévin Bailly, Matthieu Cord

Face Alignment is an active computer vision domain, that consists in localizing a number of facial landmarks that vary across datasets.

Face Alignment

Face Alignment with Cascaded Semi-Parametric Deep Greedy Neural Forests

no code implementations5 Mar 2017 Arnaud Dapogny, Kévin Bailly, Séverine Dubuisson

GNF appears as an ideal regressor for face alignment, as it combines differentiability, high expressivity and fast evaluation runtime.

Face Alignment

Confidence-Weighted Local Expression Predictions for Occlusion Handling in Expression Recognition and Action Unit detection

no code implementations21 Jul 2016 Arnaud Dapogny, Kévin Bailly, Séverine Dubuisson

Furthermore, labelling expressions is a time-consuming process that is prone to subjectivity, thus the variability may not be fully covered by the training data.

Action Unit Detection Descriptive +3

Dynamic Pose-Robust Facial Expression Recognition by Multi-View Pairwise Conditional Random Forests

no code implementations21 Jul 2016 Arnaud Dapogny, Kévin Bailly, Séverine Dubuisson

As such, our approach appears as a natural extension of Random Forests for learning spatio-temporal patterns, potentially from multiple viewpoints.

Facial Expression Recognition Facial Expression Recognition (FER) +1

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