activity
20212024
most citedCheck Your Other Door! Creating Backdoor Attacks in the Frequency Domain

7 citations · 18 across the 6 of their papers we have counts for

collaborators

6 papers

cs.CL2024★ 2 cited

Model Merging and Safety Alignment: One Bad Model Spoils the Bunch

Hasan Abed Al Kader Hammoud, Umberto Michieli, Fabio Pizzati +4

Merging Large Language Models (LLMs) is a cost-effective technique for combining multiple expert LLMs into a single versatile model, retaining the expertise of the original ones. H…

cs.CV2024★ 2 cited

On Pretraining Data Diversity for Self-Supervised Learning

Hasan Abed Al Kader Hammoud, Tuhin Das, Fabio Pizzati +3

We explore the impact of training with more diverse datasets, characterized by the number of unique samples, on the performance of self-supervised learning (SSL) under a fixed comp…

cs.CV2024★ 3 cited

SynthCLIP: Are We Ready for a Fully Synthetic CLIP Training?

Hasan Abed Al Kader Hammoud, Hani Itani, Fabio Pizzati +3

We present SynthCLIP, a CLIP model trained on entirely synthetic text-image pairs. Leveraging recent text-to-image (TTI) networks and large language models (LLM), we generate synth…

cs.CR2023★ 1 cited

Don't FREAK Out: A Frequency-Inspired Approach to Detecting Backdoor Poisoned Samples in DNNs

Hasan Abed Al Kader Hammoud, Adel Bibi, Philip H. S. Torr +1

In this paper we investigate the frequency sensitivity of Deep Neural Networks (DNNs) when presented with clean samples versus poisoned samples. Our analysis shows significant disp…

cs.CV2023★ 3 cited

Look, Listen, and Attack: Backdoor Attacks Against Video Action Recognition

Hasan Abed Al Kader Hammoud, Shuming Liu, Mohammed Alkhrashi +2

Deep neural networks (DNNs) are vulnerable to a class of attacks called "backdoor attacks", which create an association between a backdoor trigger and a target label the attacker i…

cs.CR2021★ 7 cited

Check Your Other Door! Creating Backdoor Attacks in the Frequency Domain

Hasan Abed Al Kader Hammoud, Bernard Ghanem

Deep Neural Networks (DNNs) are ubiquitous and span a variety of applications ranging from image classification to real-time object detection. As DNN models become more sophisticat…