3 papers
math.NA2025
An Explicit Euler-type Scheme for Lévy-driven SDEs with Superlinear and Time-Irregular Coefficients
Sani Biswas, Joaquin Fontbona
This paper introduces a randomized tamed Euler scheme tailored for Lévy-driven stochastic differential equations (SDEs) with superlinear random coefficients and Carathéodory-type d…
cs.CV2025
Towards SFW sampling for diffusion models via external conditioning
Camilo Carvajal Reyes, Joaquín Fontbona, Felipe Tobar
Score-based generative models (SBM), also known as diffusion models, are the de facto state of the art for image synthesis. Despite their unparalleled performance, SBMs have recent…
stat.ML2024
Symmetries in Overparametrized Neural Networks: A Mean-Field View
Javier Maass, Joaquin Fontbona
We develop a Mean-Field (MF) view of the learning dynamics of overparametrized Artificial Neural Networks (NN) under data symmetric in law wrt the action of a general compact group…