Search Results for author: Houssem Ben Braiek

Found 10 papers, 3 papers with code

Machine Learning Robustness: A Primer

no code implementations1 Apr 2024 Houssem Ben Braiek, Foutse khomh

This chapter explores the foundational concept of robustness in Machine Learning (ML) and its integral role in establishing trustworthiness in Artificial Intelligence (AI) systems.

Transfer Learning

An Intentional Forgetting-Driven Self-Healing Method For Deep Reinforcement Learning Systems

1 code implementation23 Aug 2023 Ahmed Haj Yahmed, Rached Bouchoucha, Houssem Ben Braiek, Foutse khomh

Dr. DRL successfully helps agents to adapt to 19. 63% of drifted environments left unsolved by vanilla CL while maintaining and even enhancing by up to 45% the obtained rewards for drifted environments that are resolved by both approaches.

Continual Learning reinforcement-learning

SmOOD: Smoothness-based Out-of-Distribution Detection Approach for Surrogate Neural Networks in Aircraft Design

no code implementations7 Sep 2022 Houssem Ben Braiek, Ali Tfaily, Foutse khomh, Thomas Reid, Ciro Guida

Hybrid surrogate optimization maintains high results quality while providing rapid design assessments when both the surrogate model and the switch mechanism for eventually transitioning to the HF model are calibrated properly.

Out-of-Distribution Detection

Physics-Guided Adversarial Machine Learning for Aircraft Systems Simulation

no code implementations7 Sep 2022 Houssem Ben Braiek, Thomas Reid, Foutse khomh

In the context of aircraft system performance assessment, deep learning technologies allow to quickly infer models from experimental measurements, with less detailed system knowledge than usually required by physics-based modeling.

DiverGet: A Search-Based Software Testing Approach for Deep Neural Network Quantization Assessment

no code implementations13 Jul 2022 Ahmed Haj Yahmed, Houssem Ben Braiek, Foutse khomh, Sonia Bouzidi, Rania Zaatour

Quantization is one of the most applied Deep Neural Network (DNN) compression strategies, when deploying a trained DNN model on an embedded system or a cell phone.

Astronomy Quantization

Models of Computational Profiles to Study the Likelihood of DNN Metamorphic Test Cases

no code implementations28 Jul 2021 Ettore Merlo, Mira Marhaba, Foutse khomh, Houssem Ben Braiek, Giuliano Antoniol

We investigate the distribution of computational profile likelihood of metamorphic test cases with respect to the likelihood distributions of training, test and error control cases.

Faults in Deep Reinforcement Learning Programs: A Taxonomy and A Detection Approach

1 code implementation1 Jan 2021 Amin Nikanjam, Mohammad Mehdi Morovati, Foutse khomh, Houssem Ben Braiek

To allow for the automatic detection of faults in DRL programs, we have defined a meta-model of DRL programs and developed DRLinter, a model-based fault detection approach that leverages static analysis and graph transformations.

Fault Detection OpenAI Gym +2

DeepEvolution: A Search-Based Testing Approach for Deep Neural Networks

no code implementations5 Sep 2019 Houssem Ben Braiek, Foutse khomh

To overcome these limitations, we propose, DeepEvolution, a novel search-based approach for testing DL models that relies on metaheuristics to ensure a maximum diversity in generated test cases.

Autonomous Vehicles Quantization

TFCheck : A TensorFlow Library for Detecting Training Issues in Neural Network Programs

no code implementations5 Sep 2019 Houssem Ben Braiek, Foutse khomh

In this paper, we examine training issues in ML programs and propose a catalog of verification routines that can be used to detect the identified issues, automatically.

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