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Motasem Alfarra

13 accepted papers

2026

Masks Can Be Distracting: On Context Comprehension in Diffusion Language Models

ICML 2026poster

Masked Diffusion Language Models (MDLMs) have recently emerged as a promising alternative to Autoregressive Language Models (ARLMs), leveraging a denoising objective that, in principle, should enable more uniform context utilisation. In this work, we examine the context comprehension abilities of MD…

Cited by 0SourceScholar
2025

Test-Time Adaptation for Combating Missing Modalities in Egocentric Videos

ICLR 2025poster

Understanding videos that contain multiple modalities is crucial, especially in egocentric videos, where combining various sensory inputs significantly improves tasks like action recognition and moment localization. However, real-world applications often face challenges with incomplete modalities du…

Cited by 0SourcePDFScholar
2024

Evaluation of Test-Time Adaptation Under Computational Time Constraints

ICML 2024poster

This paper proposes a novel online evaluation protocol for Test Time Adaptation (TTA) methods, which penalizes slower methods by providing them with fewer samples for adaptation. TTA methods leverage unlabeled data at test time to adapt to distribution shifts. Though many effective methods have been…

2024

SimCS: Simulation for Domain Incremental Online Continual Segmentation

AAAI 2024technical

Continual Learning is a step towards lifelong intelligence where models continuously learn from recently collected data without forgetting previous knowledge. Existing continual learning approaches mostly focus on image classification in the class-incremental setup with clear task boundaries and unl…

Cited by 7SourcePDFScholar
2024

Towards Interpretable Deep Local Learning with Successive Gradient Reconciliation

ICML 2024poster

Relieving the reliance of neural network training on a global back-propagation (BP) has emerged as a notable research topic due to the biological implausibility and huge memory consumption caused by BP. Among the existing solutions, local learning optimizes gradient-isolated modules of a neural netw…

Cited by 1SourcePDFScholar
2023

PIVOT: Prompting for Video Continual Learning

CVPR 2023poster

Modern machine learning pipelines are limited due to data availability, storage quotas, privacy regulations, and expensive annotation processes. These constraints make it difficult or impossible to train and update large-scale models on such dynamic annotated sets. Continual learning directly approa…

Cited by 60SourcePDFScholar
2023

Real-Time Evaluation in Online Continual Learning: A New Hope

CVPR 2023highlight

Current evaluations of Continual Learning (CL) methods typically assume that there is no constraint on training time and computation. This is an unrealistic assumption for any real-world setting, which motivates us to propose: a practical real-time evaluation of continual learning, in which the stre…

2022

3DeformRS: Certifying Spatial Deformations on Point Clouds

CVPR 2022poster

3D computer vision models are commonly used in security-critical applications such as autonomous driving and surgical robotics. Emerging concerns over the robustness of these models against real-world deformations must be addressed practically and reliably. In this work, we propose 3DeformRS, a meth…

Cited by 14PDFcodeScholar
2022

Combating Adversaries with Anti-adversaries

AAAI 2022technical

Deep neural networks are vulnerable to small input perturbations known as adversarial attacks. Inspired by the fact that these adversaries are constructed by iteratively minimizing the confidence of a network for the true class label, we propose the anti-adversary layer, aimed at countering this eff…

2022

DeformRS: Certifying Input Deformations with Randomized Smoothing

AAAI 2022technical

Deep neural networks are vulnerable to input deformations in the form of vector fields of pixel displacements and to other parameterized geometric deformations e.g. translations, rotations, etc. Current input deformation certification methods either (i) do not scale to deep networks on large input d…

2022

On the Robustness of Quality Measures for GANs

ECCV 2022poster

"This work evaluates the robustness of quality measures of generative models such as Inception Score (IS) and Fréchet Inception Distance (FID). Analogous to the vulnerability of deep models against a variety of adversarial attacks, we show that such metrics can also be manipulated by additive pixel…

2020

Gabor Layers Enhance Network Robustness

ECCV 2020poster

We revisit the benefits of merging classical vision concepts with deep learning models. In particular, we explore the effect of replacing the first layers of various deep architectures with Gabor layers (i.e. convolutional layers with filters that are based on learnable Gabor parameters) on robustne…