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Zhan-Ming Shen

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#artificial intelligence Preprint Sep 2026

MM-OPD: Towards One More Bottleneck Between Perception and Reasoning

MM-OPD is introduced, a multimodal on-policy self-distillation framework for symbolic-to-visual correction that transfers guidance from symbolic-conditioned behavior to the image-conditioned policy through residual token-level targets, steering the model toward correct visual evidence.

Jin-Tao Tong, Yujing Lou, Zhan-Ming Shen et al. · 0 citations
Preprint Aug 2026

TailSieve: Partial-Rollout-Guided Tail Routing for LLM Rollouts

TailSieve, a partial-rollout-guided framework that jointly controls tail routing and replica allocation for LLM rollouts, and shows that makespan-optimal routing in the long-tail regime combines tail isolation with load balancing, and that a simple top-k policy closely approximates this offline optimum.

Tianqi Xu, Lu Lv, Hao-Yang Huang et al. · 3 citations · ⚡1
#machine learning Preprint Sep 2026

Frozen Cores Need Task Signal: Fisher-Whitened Cross-Covariance for Low-Resource LLM Adaptation

FCCA, which estimates the signed input--error cross-covariance, whitens it with diagonal Fisher moments, truncates it in the resulting local metric, maps the selected directions back, and applies thin QR to obtain stable core coordinates, shows that a carefully selected fixed span can recover most of the benefit of mov...

Wen-Song Ye, Zhan-Ming Shen, Zhiqing Xiao et al. · 1 citation · ⚡1

Reasoning Error from Known Fact: Step-Level Self-Consistency Group Relative Policy Optimization for LLM

This work conducts a fine-grained analysis of hallucinations arising in LLM reasoning and finds that the reasoning traces are particularly prone to Context-Sensitive Factual Hallucinations: cases where the model actually has the relevant knowledge, yet makes factual errors due to contextual interference during reasonin...

Xiaomeng Hu, Jiaqi Hu, Hao Chen et al. · 0 citations

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