collaborators

5 papers

cs.CL2026

The Fairness Collapse Phenomenon: Bias Amplification in Language Models Trained on Synthetic Data

Irina Proskurina, Antoine Gourru, Julien Velcin

Generative models trained on artificially generated data have been shown to exhibit model collapse, resulting in significant performance degradation. As synthetic content increasin…

cs.CL2026

Fair-GPTQ: Bias-Aware Quantization for Large Language Models

Irina Proskurina, Guillaume Metzler, Julien Velcin

The high memory demands of generative language models have drawn attention to quantization, which reduces memory usage by mapping model weights to lower-precision integers. However…

cs.CL2026

Beyond Arrow's Impossibility: Fairness as an Emergent Property of Multi-Agent Collaboration

Sayan Kumar Chaki, Antoine Gourru, Julien Velcin

Fairness in language models is typically studied as a property of a single, centrally optimized model. As large language models become increasingly agentic, we propose that fairnes…

cs.CL2026

HatePrototypes: Interpretable and Transferable Representations for Implicit and Explicit Hate Speech Detection

Irina Proskurina, Marc-Antoine Carpentier, Julien Velcin

Optimization of offensive content moderation models for different types of hateful messages is typically achieved through continued pre-training or fine-tuning on new hate speech b…

cs.CL2025

Histoires Morales: A French Dataset for Assessing Moral Alignment

Thibaud Leteno, Irina Proskurina, Antoine Gourru +4

Aligning language models with human values is crucial, especially as they become more integrated into everyday life. While models are often adapted to user preferences, it is equal…