← Search

Matthieu Boussard

3 accepted papers

2026

The impact of LoRA on Oversmoothing $\colon$ Understanding Catastrophic Forgetting in Mean-Field Attention Dynamics

ICML 2026poster

Low-Rank Adaptation (LoRA) is the dominant parameter-efficient fine-tuning method due to its favorable compute-performance trade-off, yet it suffers from catastrophic forgetting. We study forgetting through a tractable _mean-field self-attention_ toy model, where tokens evolve as an interacting part…

Cited by 0SourceScholar
2025

Privacy Amplification Through Synthetic Data: Insights from Linear Regression

ICML 2025poster

Synthetic data inherits the differential privacy guarantees of the model used to generate it. Additionally, synthetic data may benefit from privacy amplification when the generative model is kept hidden. While empirical studies suggest this phenomenon, a rigorous theoretical understanding is still l…

Cited by 0SourcePDFScholar
2024

Rényi Pufferfish Privacy: General Additive Noise Mechanisms and Privacy Amplification by Iteration via Shift Reduction Lemmas

ICML 2024poster

Pufferfish privacy is a flexible generalization of differential privacy that allows to model arbitrary secrets and adversary's prior knowledge about the data. Unfortunately, designing general and tractable Pufferfish mechanisms that do not compromise utility is challenging. Furthermore, this framewo…

Cited by 3SourcePDFScholar