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Zilai Li

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#artificial intelligence Preprint Sep 2026

RAIN: Region-Aware Inversion Network for Semantic Watermark Extraction

A lightweight, prompt-free extractor that decomposes endpoint recovery into an image-like anchor and a noise-oriented residual, which increases the capability of the model to utilize GPU parallel computation, providing an efficient one-step extraction pipeline with a concise theoretical interpretation.

Zi-Lai Li · 0 citations
Preprint Jul 2026

EMPURPLE: A Free Lunch for Diffusion Distillation based on the Information Bottleneck

Diffusion models achieve impressive image-generation quality but remain expensive at inference time. Diffusion distillation reduces sampling steps, yet many distilled models, including SDXL-Lightning and distribution matching distillation methods, suffer from degraded Fr\'echet Inception Distance (FID). We analyze this...

Zilai Li, Lujia Bai · 0 citations

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