Search Results for author: Fabrizio Pastore

Found 6 papers, 4 papers with code

Supporting Safety Analysis of Image-processing DNNs through Clustering-based Approaches

no code implementations31 Jan 2023 Mohammed Oualid Attaoui, Hazem Fahmy, Fabrizio Pastore, Lionel Briand

In our previous work, we proposed a white-box approach (HUDD) and a black-box approach (SAFE) to automatically characterize DNN failures.

Clustering Dimensionality Reduction +1

HUDD: A tool to debug DNNs for safety analysis

1 code implementation15 Oct 2022 Hazem Fahmy, Fabrizio Pastore, Lionel Briand

We present HUDD, a tool that supports safety analysis practices for systems enabled by Deep Neural Networks (DNNs) by automatically identifying the root causes for DNN errors and retraining the DNN.

Simulator-based explanation and debugging of hazard-triggering events in DNN-based safety-critical systems

1 code implementation1 Apr 2022 Hazem Fahmy, Fabrizio Pastore, Lionel Briand, Thomas Stifter

When Deep Neural Networks (DNNs) are used in safety-critical systems, engineers should determine the safety risks associated with failures (i. e., erroneous outputs) observed during testing.

Black-box Safety Analysis and Retraining of DNNs based on Feature Extraction and Clustering

1 code implementation13 Jan 2022 Mohammed Oualid Attaoui, Hazem Fahmy, Fabrizio Pastore, Lionel Briand

Experimental results show the superior ability of SAFE in identifying different root causes of DNN errors based on case studies in the automotive domain.

Clustering Self-Driving Cars +1

Mutation Analysis for Cyber-Physical Systems: Scalable Solutions and Results in the Space Domain

no code implementations13 Jan 2021 Oscar Cornejo, Fabrizio Pastore, Lionel Briand

On-board embedded software developed for spaceflight systems (space software) must adhere to stringent software quality assurance procedures.

Software Engineering

Supporting DNN Safety Analysis and Retraining through Heatmap-based Unsupervised Learning

1 code implementation3 Feb 2020 Hazem Fahmy, Fabrizio Pastore, Mojtaba Bagherzadeh, Lionel Briand

To address these problems in the context of DNNs analyzing images, we propose HUDD, an approach that automatically supports the identification of root causes for DNN errors.

Clustering

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