activity
20232026
most citedSecond Edition FRCSyn Challenge at CVPR 2024: Face Recognition Challenge in the Era of Synthetic Data

17 citations · 36 across the 9 of their papers we have counts for

collaborators

11 papers

cs.LG2026

Do Knowledge and Reasoning Oriented Benchmarks Induce Stable Representation Signatures in LLMs?

Parsa Rahimi, Azim Dehghani Amirabad

Internal signatures could support monitoring, adaptive computation, and mechanistic analysis, but benchmark prompts can be separable without any shared computational distinction. W…

cs.IR2026

ScoreShield: Differentially Private Release of Similarity Scores

Behrooz Razeghi, Parsa Rahimi

A growing number of applications, such as biometrics and retrieval-augmented generation (RAG), rely on cosine similarity scores computed between vector embeddings of text, images,…

cs.CV2025

ScoreMix: Synthetic Data Generation by Score Composition in Diffusion Models Improves Recognition

Parsa Rahimi, Sebastien Marcel

Synthetic data generation is increasingly used in machine learning for training and data augmentation. Yet, current strategies often rely on external foundation models or datasets,…

cs.CV2025

AugGen: Synthetic Augmentation using Diffusion Models Can Improve Recognition

Parsa Rahimi, Damien Teney, Sebastien Marcel

The increasing reliance on large-scale datasets in machine learning poses significant privacy and ethical challenges, particularly in sensitive domains such as face recognition. Sy…

cs.CV2024★ 17 cited

Second FRCSyn-onGoing: Winning Solutions and Post-Challenge Analysis to Improve Face Recognition with Synthetic Data

Ivan DeAndres-Tame, Ruben Tolosana, Pietro Melzi +56

Synthetic data is gaining increasing popularity for face recognition technologies, mainly due to the privacy concerns and challenges associated with obtaining real data, including…

cs.CV2024

Synthetic to Authentic: Transferring Realism to 3D Face Renderings for Boosting Face Recognition

Parsa Rahimi, Behrooz Razeghi, Sebastien Marcel

In this paper, we investigate the potential of image-to-image translation (I2I) techniques for transferring realism to 3D-rendered facial images in the context of Face Recognition…

cs.CV2024★ 17 cited

Second Edition FRCSyn Challenge at CVPR 2024: Face Recognition Challenge in the Era of Synthetic Data

Ivan DeAndres-Tame, Ruben Tolosana, Pietro Melzi +55

Synthetic data is gaining increasing relevance for training machine learning models. This is mainly motivated due to several factors such as the lack of real data and intra-class v…

cs.LG2024

Deep Privacy Funnel Model: From a Discriminative to a Generative Approach with an Application to Face Recognition

Behrooz Razeghi, Parsa Rahimi, Sébastien Marcel

In this study, we apply the information-theoretic Privacy Funnel (PF) model to face recognition and develop a method for privacy-preserving representation learning within an end-to…

cs.CV2024

Deep Variational Privacy Funnel: General Modeling with Applications in Face Recognition

Behrooz Razeghi, Parsa Rahimi, Sébastien Marcel

In this study, we harness the information-theoretic Privacy Funnel (PF) model to develop a method for privacy-preserving representation learning using an end-to-end training framew…

cs.CV2023★ 2 cited

FRCSyn Challenge at WACV 2024:Face Recognition Challenge in the Era of Synthetic Data

Pietro Melzi, Ruben Tolosana, Ruben Vera-Rodriguez +44

Despite the widespread adoption of face recognition technology around the world, and its remarkable performance on current benchmarks, there are still several challenges that must…

cs.CV2023

Toward responsible face datasets: modeling the distribution of a disentangled latent space for sampling face images from demographic groups

Parsa Rahimi, Christophe Ecabert, Sebastien Marcel

Recently, it has been exposed that some modern facial recognition systems could discriminate specific demographic groups and may lead to unfair attention with respect to various fa…