Search Results for author: Anouar Ben Khalifa

Found 4 papers, 0 papers with code

Jedi: Entropy-based Localization and Removal of Adversarial Patches

no code implementations CVPR 2023 Bilel Tarchoun, Anouar Ben Khalifa, Mohamed Ali Mahjoub, Nael Abu-Ghazaleh, Ihsen Alouani

Jedi tackles the patch localization problem from an information theory perspective; leverages two new ideas: (1) it improves the identification of potential patch regions using entropy analysis: we show that the entropy of adversarial patches is high, even in naturalistic patches; and (2) it improves the localization of adversarial patches, using an autoencoder that is able to complete patch regions from high entropy kernels.

An Investigation on Inherent Robustness of Posit Data Representation

no code implementations5 Jan 2021 Ihsen Alouani, Anouar Ben Khalifa, Farhad Merchant, Rainer Leupers

Moreover, in 100% of the tested machine-learning applications, the accuracy of posit-implemented systems is higher than the classical floating-point-based ones.

Hardware Architecture

Multimodal Biometric Authentication Using Choquet Integral and Genetic Algorithm

no code implementations27 Mar 2018 Anouar Ben Khalifa, Sami Gazzah, Najoua Essoukri Ben Amara

The Choquet integral is a tool for the information fusion that is very effective in the case where fuzzy measures associated with it are well chosen.

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