Search Results for author: Marco Grangetto

Found 22 papers, 10 papers with code

Domain Adaptation for Learned Image Compression with Supervised Adapters

no code implementations24 Apr 2024 Alberto Presta, Gabriele Spadaro, Enzo Tartaglione, Attilio Fiandrotti, Marco Grangetto

In Learned Image Compression (LIC), a model is trained at encoding and decoding images sampled from a source domain, often outperforming traditional codecs on natural images; yet its performance may be far from optimal on images sampled from different domains.

Domain Adaptation Image Compression

Detection of subclinical atherosclerosis by image-based deep learning on chest x-ray

no code implementations27 Mar 2024 Guglielmo Gallone, Francesco Iodice, Alberto Presta, Davide Tore, Ovidio de Filippo, Michele Visciano, Carlo Alberto Barbano, Alessandro Serafini, Paola Gorrini, Alessandro Bruno, Walter Grosso Marra, James Hughes, Mario Iannaccone, Paolo Fonio, Attilio Fiandrotti, Alessandro Depaoli, Marco Grangetto, Gaetano Maria de Ferrari, Fabrizio D'Ascenzo

A deep-learning algorithm to predict coronary artery calcium (CAC) score (the AI-CAC model) was developed on 460 chest x-ray (80% training cohort, 20% internal validation cohort) of primary prevention patients (58. 4% male, median age 63 [51-74] years) with available paired chest x-ray and chest computed tomography (CT) indicated for any clinical reason and performed within 3 months.

Computed Tomography (CT)

Contrastive learning for regression in multi-site brain age prediction

no code implementations14 Nov 2022 Carlo Alberto Barbano, Benoit Dufumier, Edouard Duchesnay, Marco Grangetto, Pietro Gori

Building accurate Deep Learning (DL) models for brain age prediction is a very relevant topic in neuroimaging, as it could help better understand neurodegenerative disorders and find new biomarkers.

Contrastive Learning regression

Unbiased Supervised Contrastive Learning

1 code implementation10 Nov 2022 Carlo Alberto Barbano, Benoit Dufumier, Enzo Tartaglione, Marco Grangetto, Pietro Gori

In this work, we tackle the problem of learning representations that are robust to biases.

Contrastive Learning

Towards Efficient Capsule Networks

1 code implementation19 Aug 2022 Riccardo Renzulli, Marco Grangetto

From the moment Neural Networks dominated the scene for image processing, the computational complexity needed to solve the targeted tasks skyrocketed: against such an unsustainable trend, many strategies have been developed, ambitiously targeting performance's preservation.

Computational Efficiency

To update or not to update? Neurons at equilibrium in deep models

1 code implementation19 Jul 2022 Andrea Bragagnolo, Enzo Tartaglione, Marco Grangetto

Recent advances in deep learning optimization showed that, with some a-posteriori information on fully-trained models, it is possible to match the same performance by simply training a subset of their parameters.

Disentangling private classes through regularization

no code implementations5 Jul 2022 Enzo Tartaglione, Francesca Gennari, Marco Grangetto

In this work we propose DisP, an approach for deep learning models disentangling the information related to some classes we desire to keep private, from the data processed by AI.

Decision Making

Unsupervised Learning of Unbiased Visual Representations

no code implementations26 Apr 2022 Carlo Alberto Barbano, Enzo Tartaglione, Marco Grangetto

We propose a fully unsupervised debiasing framework, consisting of three steps: first, we exploit the natural preference for learning malignant biases, obtaining a bias-capturing model; then, we perform a pseudo-labelling step to obtain bias labels; finally we employ state-of-the-art supervised debiasing techniques to obtain an unbiased model.

REM: Routing Entropy Minimization for Capsule Networks

no code implementations4 Apr 2022 Riccardo Renzulli, Enzo Tartaglione, Marco Grangetto

This paper proposes REM, a technique which minimizes the entropy of the parse tree-like structure, improving its explainability.

HEMP: High-order Entropy Minimization for neural network comPression

no code implementations12 Jul 2021 Enzo Tartaglione, Stéphane Lathuilière, Attilio Fiandrotti, Marco Cagnazzo, Marco Grangetto

We formulate the entropy of a quantized artificial neural network as a differentiable function that can be plugged as a regularization term into the cost function minimized by gradient descent.

Neural Network Compression Quantization +1

EnD: Entangling and Disentangling deep representations for bias correction

2 code implementations CVPR 2021 Enzo Tartaglione, Carlo Alberto Barbano, Marco Grangetto

Artificial neural networks perform state-of-the-art in an ever-growing number of tasks, and nowadays they are used to solve an incredibly large variety of tasks.

Classification (ρ=0.990) Classification (ρ=0.995) +6

SeReNe: Sensitivity based Regularization of Neurons for Structured Sparsity in Neural Networks

1 code implementation7 Feb 2021 Enzo Tartaglione, Andrea Bragagnolo, Francesco Odierna, Attilio Fiandrotti, Marco Grangetto

Deep neural networks include millions of learnable parameters, making their deployment over resource-constrained devices problematic.

A two-step explainable approach for COVID-19 computer-aided diagnosis from chest x-ray images

no code implementations25 Jan 2021 Carlo Alberto Barbano, Enzo Tartaglione, Claudio Berzovini, Marco Calandri, Marco Grangetto

Early screening of patients is a critical issue in order to assess immediate and fast responses against the spread of COVID-19.

LOss-Based SensiTivity rEgulaRization: towards deep sparse neural networks

no code implementations16 Nov 2020 Enzo Tartaglione, Andrea Bragagnolo, Attilio Fiandrotti, Marco Grangetto

LOBSTER (LOss-Based SensiTivity rEgulaRization) is a method for training neural networks having a sparse topology.

A non-discriminatory approach to ethical deep learning

no code implementations4 Aug 2020 Enzo Tartaglione, Marco Grangetto

Artificial neural networks perform state-of-the-art in an ever-growing number of tasks, nowadays they are used to solve an incredibly large variety of tasks.

Image Classification

Pruning artificial neural networks: a way to find well-generalizing, high-entropy sharp minima

1 code implementation30 Apr 2020 Enzo Tartaglione, Andrea Bragagnolo, Marco Grangetto

Recently, a race towards the simplification of deep networks has begun, showing that it is effectively possible to reduce the size of these models with minimal or no performance loss.

Transfer Learning

Unveiling COVID-19 from Chest X-ray with deep learning: a hurdles race with small data

9 code implementations11 Apr 2020 Enzo Tartaglione, Carlo Alberto Barbano, Claudio Berzovini, Marco Calandri, Marco Grangetto

The possibility to use widespread and simple chest X-ray (CXR) imaging for early screening of COVID-19 patients is attracting much interest from both the clinical and the AI community.

Small Data Image Classification Transfer Learning

Post-synaptic potential regularization has potential

1 code implementation19 Jul 2019 Enzo Tartaglione, Daniele Perlo, Marco Grangetto

Improving generalization is one of the main challenges for training deep neural networks on classification tasks.

Classification Data Augmentation +1

Graph Laplacian for Image Anomaly Detection

1 code implementation27 Feb 2018 Francesco Verdoja, Marco Grangetto

Reed-Xiaoli detector (RXD) is recognized as the benchmark algorithm for image anomaly detection; however, it presents known limitations, namely the dependence over the image following a multivariate Gaussian model, the estimation and inversion of a high-dimensional covariance matrix, and the inability to effectively include spatial awareness in its evaluation.

Anomaly Detection

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