Search Results for author: Gianni Franchi

Found 29 papers, 16 papers with code

Hyperspectral Image Classification with Support Vector Machines on Kernel Distribution Embeddings

no code implementations30 May 2016 Gianni Franchi, Jesus Angulo, Dino Sejdinovic

We propose a novel approach for pixel classification in hyperspectral images, leveraging on both the spatial and spectral information in the data.

Classification General Classification +1

Supervised Deep Kriging for Single-Image Super-Resolution

no code implementations10 Dec 2018 Gianni Franchi, Angela Yao, Andreas Kolb

We propose a novel single-image super-resolution approach based on the geostatistical method of kriging.

Image Super-Resolution Spatial Interpolation

TRADI: Tracking deep neural network weight distributions for uncertainty estimation

no code implementations ECCV 2020 Gianni Franchi, Andrei Bursuc, Emanuel Aldea, Severine Dubuisson, Isabelle Bloch

During training, the weights of a Deep Neural Network (DNN) are optimized from a random initialization towards a nearly optimum value minimizing a loss function.

Computational Efficiency General Classification +2

One Versus all for deep Neural Network Incertitude (OVNNI) quantification

no code implementations1 Jun 2020 Gianni Franchi, Andrei Bursuc, Emanuel Aldea, Severine Dubuisson, Isabelle Bloch

This is due to the fact that modern DNNs are usually uncalibrated and we cannot characterize their epistemic uncertainty.

Encoding the latent posterior of Bayesian Neural Networks for uncertainty quantification

2 code implementations4 Dec 2020 Gianni Franchi, Andrei Bursuc, Emanuel Aldea, Severine Dubuisson, Isabelle Bloch

Bayesian neural networks (BNNs) have been long considered an ideal, yet unscalable solution for improving the robustness and the predictive uncertainty of deep neural networks.

Bayesian Inference Decision Making Under Uncertainty +5

Learning Deep Morphological Networks with Neural Architecture Search

1 code implementation14 Jun 2021 Yufei Hu, Nacim Belkhir, Jesus Angulo, Angela Yao, Gianni Franchi

Using a combination of linear and non-linear procedures is critical for generating a sufficiently deep feature space.

Edge Detection Meta-Learning +1

Learning a Discriminant Latent Space with Neural Discriminant Analysis

no code implementations13 Jul 2021 Mai Lan Ha, Gianni Franchi, Emanuel Aldea, Volker Blanz

NDA transforms deep features to become more discriminative and, therefore, improves the performances in various tasks.

Classification Out-of-Distribution Detection

Robust Semantic Segmentation with Superpixel-Mix

1 code implementation2 Aug 2021 Gianni Franchi, Nacim Belkhir, Mai Lan Ha, Yufei Hu, Andrei Bursuc, Volker Blanz, Angela Yao

Along with predictive performance and runtime speed, reliability is a key requirement for real-world semantic segmentation.

Data Augmentation Segmentation +2

SLURP: Side Learning Uncertainty for Regression Problems

1 code implementation21 Oct 2021 Xuanlong Yu, Gianni Franchi, Emanuel Aldea

It has become critical for deep learning algorithms to quantify their output uncertainties to satisfy reliability constraints and provide accurate results.

regression

A study of deep perceptual metrics for image quality assessment

1 code implementation17 Feb 2022 Rémi Kazmierczak, Gianni Franchi, Nacim Belkhir, Antoine Manzanera, David Filliat

Several metrics exist to quantify the similarity between images, but they are inefficient when it comes to measure the similarity of highly distorted images.

Image Quality Assessment

On Monocular Depth Estimation and Uncertainty Quantification using Classification Approaches for Regression

no code implementations24 Feb 2022 Xuanlong Yu, Gianni Franchi, Emanuel Aldea

To this end, this paper will introduce a taxonomy and summary of CAR approaches, a new uncertainty estimation solution for CAR, and a set of experiments on depth accuracy and uncertainty quantification for CAR-based models on KITTI dataset.

3D Reconstruction Autonomous Driving +3

MUAD: Multiple Uncertainties for Autonomous Driving, a benchmark for multiple uncertainty types and tasks

3 code implementations2 Mar 2022 Gianni Franchi, Xuanlong Yu, Andrei Bursuc, Angel Tena, Rémi Kazmierczak, Séverine Dubuisson, Emanuel Aldea, David Filliat

However, disentangling the different types and sources of uncertainty is non trivial for most datasets, especially since there is no ground truth for uncertainty.

Anomaly Detection Autonomous Driving +4

Latent Discriminant deterministic Uncertainty

1 code implementation20 Jul 2022 Gianni Franchi, Xuanlong Yu, Andrei Bursuc, Emanuel Aldea, Severine Dubuisson, David Filliat

Predictive uncertainty estimation is essential for deploying Deep Neural Networks in real-world autonomous systems.

Autonomous Driving Image Classification +3

Greybox XAI: a Neural-Symbolic learning framework to produce interpretable predictions for image classification

1 code implementation26 Sep 2022 Adrien Bennetot, Gianni Franchi, Javier Del Ser, Raja Chatila, Natalia Diaz-Rodriguez

As a result, there is a widespread agreement on the importance of endowing Deep Learning models with explanatory capabilities so that they can themselves provide an answer to why a particular prediction was made.

Explainable artificial intelligence Explainable Artificial Intelligence (XAI) +1

Packed-Ensembles for Efficient Uncertainty Estimation

1 code implementation17 Oct 2022 Olivier Laurent, Adrien Lafage, Enzo Tartaglione, Geoffrey Daniel, Jean-Marc Martinez, Andrei Bursuc, Gianni Franchi

Deep Ensembles (DE) are a prominent approach for achieving excellent performance on key metrics such as accuracy, calibration, uncertainty estimation, and out-of-distribution detection.

Classifier calibration Image Classification +2

Learning to Generate Training Datasets for Robust Semantic Segmentation

no code implementations1 Aug 2023 Marwane Hariat, Olivier Laurent, Rémi Kazmierczak, Shihao Zhang, Andrei Bursuc, Angela Yao, Gianni Franchi

We propose a novel approach to improve the robustness of semantic segmentation techniques by leveraging the synergy between label-to-image generators and image-to-label segmentation models.

Generative Adversarial Network Segmentation +1

Improving CLIP Robustness with Knowledge Distillation and Self-Training

no code implementations19 Sep 2023 Clement Laroudie, Andrei Bursuc, Mai Lan Ha, Gianni Franchi

This paper examines the robustness of a multi-modal computer vision model, CLIP (Contrastive Language-Image Pretraining), in the context of unsupervised learning.

Knowledge Distillation

InfraParis: A multi-modal and multi-task autonomous driving dataset

1 code implementation27 Sep 2023 Gianni Franchi, Marwane Hariat, Xuanlong Yu, Nacim Belkhir, Antoine Manzanera, David Filliat

Current deep neural networks (DNNs) for autonomous driving computer vision are typically trained on specific datasets that only involve a single type of data and urban scenes.

Autonomous Driving Monocular Depth Estimation +4

How To Effectively Train An Ensemble Of Faster R-CNN Object Detectors To Quantify Uncertainty

1 code implementation7 Oct 2023 Denis Mbey Akola, Gianni Franchi

This paper presents a new approach for training two-stage object detection ensemble models, more specifically, Faster R-CNN models to estimate uncertainty.

object-detection Object Detection +1

NECO: NEural Collapse Based Out-of-distribution detection

1 code implementation10 Oct 2023 Mouïn Ben Ammar, Nacim Belkhir, Sebastian Popescu, Antoine Manzanera, Gianni Franchi

Detecting out-of-distribution (OOD) data is a critical challenge in machine learning due to model overconfidence, often without awareness of their epistemological limits.

Out-of-Distribution Detection

A Symmetry-Aware Exploration of Bayesian Neural Network Posteriors

1 code implementation12 Oct 2023 Olivier Laurent, Emanuel Aldea, Gianni Franchi

The distribution of the weights of modern deep neural networks (DNNs) - crucial for uncertainty quantification and robustness - is an eminently complex object due to its extremely high dimensionality.

Uncertainty Quantification

CLIP-QDA: An Explainable Concept Bottleneck Model

no code implementations30 Nov 2023 Rémi Kazmierczak, Eloïse Berthier, Goran Frehse, Gianni Franchi

In this paper, we introduce an explainable algorithm designed from a multi-modal foundation model, that performs fast and explainable image classification.

Image Classification

Make Me a BNN: A Simple Strategy for Estimating Bayesian Uncertainty from Pre-trained Models

no code implementations23 Dec 2023 Gianni Franchi, Olivier Laurent, Maxence Leguéry, Andrei Bursuc, Andrea Pilzer, Angela Yao

Deep Neural Networks (DNNs) are powerful tools for various computer vision tasks, yet they often struggle with reliable uncertainty quantification - a critical requirement for real-world applications.

Image Classification Semantic Segmentation +1

Understanding Why Label Smoothing Degrades Selective Classification and How to Fix It

no code implementations19 Mar 2024 Guoxuan Xia, Olivier Laurent, Gianni Franchi, Christos-Savvas Bouganis

We first demonstrate empirically across a range of tasks and architectures that LS leads to a consistent degradation in SC.

Hierarchical Light Transformer Ensembles for Multimodal Trajectory Forecasting

no code implementations26 Mar 2024 Adrien Lafage, Mathieu Barbier, Gianni Franchi, David Filliat

Accurate trajectory forecasting is crucial for the performance of various systems, such as advanced driver-assistance systems and self-driving vehicles.

Motion Forecasting Trajectory Forecasting +1

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