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Zi-Han Zhou

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#artificial intelligence Preprint Sep 2026

A*-Thought-V2: Efficient Latent Reasoning via Geometric Dynamics of LLM

Chain-of-Thought (CoT) improves the reasoning ability of Large Language Models (LLMs) but incurs substantial computation and context costs. Existing methods either lose intermediate information through hard pruning or lack a principled criterion for continuous compression. We present A*-Thought-V2, a geometric dynamics...

Xiao-An Xu, Si-Yuan Liu, Shuo Wang et al. · 0 citations
#artificial intelligence Preprint Aug 2026

Beyond Teacher Likelihood: Group-Calibrated On-Policy Distillation for Long-Context Reasoning

Group-relative residual calibration can incorporate verifier outcomes without discarding dense token-level guidance, and demonstrates that group-relative residual calibration can incorporate verifier outcomes without discarding dense token-level guidance.

Zhu Zhang, Ji-Xun Wang, Xiao-An Xu et al. · 2 citations

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