Authors

Zhao Wang

Publications 4

Preprint Open access

CASE: Cost-Aware Stopping for Efficient Long-Video Agents

Long-video agents can actively gather question-relevant evidence, but they typically leave a central decision implicit: when has the agent seen enough to answer? We propose CASE, a plug-in termination framework that frames this decision as policy-conditioned sequential stopping. At each causal checkpoint, CASE combines …

Preprint Open access

How Far Do Persona Effects Generalize in Language Models?

Yufan Zhou, Yuxuan Liu, Enze Ma et al. · 2026

Persona prompts ask language models to answer as particular kinds of people. We test whether relationships learned from these effects predict responses to new questions and remain useful across models and prompts. Across 57 attributes, three behavioral domains, and seven pairs of open 7 to 9B checkpoints, persona effec …

Preprint Open access

Timo: $\textbf{T}$aming Mult$\textbf{i}$modal Diffusion Transformer for Human $\textbf{Mo}$tion Generation

Zhao Wang, Jiangtao Hu, Jack Yu et al. · 2026

Most existing human motion generation (HMG) methods use cross-attention modules to inject text semantics, but ignore the importance of bidirectional modeling between motion and text tokens, which limits text comprehension. A straightforward idea is introducing multimodal diffusion transformers (MMDiT), which have shown …

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