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math.ST2026
Diffusion Models with Heavy-Tailed Targets: Score Estimation and Sampling Guarantees
Yifeng Yu, Lu Yu
Score-based diffusion models have become a powerful framework for generative modeling, with score estimation as a central statistical bottleneck. Existing guarantees for score esti…
math.ST2025
Parallelized Midpoint Randomization for Langevin Monte Carlo
Lu Yu, Arnak Dalalyan
We study the problem of sampling from a target probability density function in frameworks where parallel evaluations of the log-density gradient are feasible. Focusing on smooth an…