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cs.CV2026
EMPURPLE: A Free Lunch for Diffusion Distillation based on the Information Bottleneck
Zilai Li, Lujia Bai
Diffusion models achieve impressive image-generation quality but remain expensive at inference time. Diffusion distillation reduces sampling steps, yet many distilled models, inclu…
math.ST2026
Validating spatial-temporal separability for stationary processes
Lujia Bai, Holger Dette, Zihao Yuan
A crucial assumption to reduce computational complexity in spatial-temporal data analysis is separability, which factors the covariance structure into a purely spatial and a purely…