Author

Zhen-Duo Zhao

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#natural language process... Preprint Oct 2026

Enhancing Multimodal RLVR with Pairwise Token Contrast and Adaptive Trajectory Confidence

Reinforcement learning with verifiable rewards (RLVR) improves multimodal reasoning, but group-relative policy optimization broadcasts a single sequence-level advantage to every token of a response, although errors usually localize to a few decisive steps. Recent self-distilled variants refine credit with a teacher--st...

Yi-Ran Zhang, Han-Bo Huang, Jie-Lan Li et al. · 0 citations

#machine learning Preprint Oct 2026

QUILT: Rethinking Sparse-Attention Prefill through Shared Query Execution

Sparse attention reduces the cost of long-context attention, but existing kernels typically process queries independently, repeatedly loading and dequantizing KV entries shared across queries. We observe substantial overlap in the KV entries selected by neighboring queries, creating opportunities for cross-query reuse....

Zhen-Duo Zhao, Qi-Hui Zhou, Ming-Cong Song et al. · 0 citations