Author

Yiwei Zhou

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Jul 2026

RELTA-SGLD: Relative-Growth Localized Taming for Nonconvex Stochastic-Gradient Langevin Learning

RELTA-SGLD is introduced, a taming scheme that stabilizes superlinear stochastic-gradient updates while reducing unnecessary suppression of the original learning drift and maintains nearly untamed learning dynamics.

Yiwei Zhou, Zi-Heng Chen · arXiv.org · 0 citations

Jul 2026

Score Accuracy Along the Forward Diffusion Does Not Certify Numerical Stability in Diffusion Sampling

A family of bounded, globally Lipschitz denoisers for which both the forward-marginal error and the path-space total variation distance tend to zero, while their Euler--Maruyama endpoints diverge in every $W_p$ for compactly supported data.

Yiwei Zhou · arXiv.org · 0 citations