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Zi-Han Su

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Preprint Oct 2026

SGF+: Decoupling Gradient Flows for Autoregressive Video Generation

Autoregressive video generation requires denoising the current frames while writing their key-value representations as context for future predictions. However, these two roles typically share parameters, and we find that their gradients exhibit distinct patterns and systematic negative alignment, hindering the joint op...

Zi-Han Su, Junhao Zhuang, Yao-Wei Li et al. · 0 citations
Preprint Sep 2026

Where and When to Force: Routed Forcing for Streaming Avatars

Audio-driven streaming avatar generation requires real-time synthesis of speech-synchronized videos with dynamic and diverse motion. Self Forcing uses Distribution Matching Distillation (DMD) to distill bidirectional video diffusion models into causal, few-step generators for real-time streaming. However, DMD minimizes...

Zi-Han Su, Si-Wen Lu, Junhao Zhuang et al. · 1 citation
Preprint Aug 2026

EchoWM: Open and Enterable Omnimodal World Models

EchoWM is an omnimodal world model for enterable generative media that responds to continuous navigation while jointly generating 720p video, environmental sound, music and speech, and maintains synchronized environmental sound and speech over long-horizon generation.

Song-Chun Zhang, Yao-Wei Li, Junhao Zhuang et al. · 10 citations · ⚡2
Preprint Jul 2026

Cycle-World: Mitigating Error Accumulation in Long-term Video World Models via Reverse-Prediction Cycle Consistency

This work proposes Cycle-World, a novel framework designed for stable and temporally consistent long-video generation that tackles error drift by enforcing strict temporal reversibility across both the training and inference phases, and demonstrates that forward generative drift can be strictly bottlenecked by a cycle-...

Zihan Su, Teng Hu, Jiangning Zhang et al. · 1 citation

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