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Kan Ren

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#artificial intelligence Preprint Sep 2026

OPMD: On-Policy Mechanism Distillation Beyond Output Supervision

On-policy distillation (OPD) improves language-model by supervising a student on prefixes sampled from its own policy, but its supervision remains confined to the output space. Consequently, OPD transfers what a teacher predicts without supervising the intermediate computation that produces those predictions. Simply di...

Ying-Dong Shi, Zhi-Hong Li, Chang-Ming Li et al. · 0 citations
#artificial intelligence Preprint Sep 2026

Rep2Skill: Representation-Guided Skill Self-Evolution for LLM Agents

Textual skills enable large language model (LLM) based agents to accumulate reusable procedural knowledge without updating model parameters. Yet existing skill evolution remains largely confined to the text space: an optimizer must diagnose success and failure patterns, and revise skills solely from long execution traj...

Kai-Xin Zhang, Chang-Ming Li, Ying-Dong Shi et al. · 0 citations
#artificial intelligence Preprint Sep 2026

From Judgment Quality to Downstream Utility: Rethinking LLM-as-a-Judge for Open-Ended Tasks

LLM-as-a-Judge is increasingly used to evaluate policy responses on open-ended tasks that lack ground-truth answers. Existing work often directly converts the resulting judgments into reward signals for policy training, paying limited attention to intrinsic judgment quality and largely restricting the use of Judges to...

Zheng Zhang, Lu Li, Xin-Yue Tan et al. · 0 citations
#artificial intelligence Preprint Sep 2026

Train Ahead, Distill Back: Bootstrapping On-Policy Self-Distillation for Large Language Models

This paper introduces Bootstrapped On-Policy Self-Distillation (B-OPSD), which temporarily trains the policy ahead to obtain a future teacher, restores the student to the original policy state, and then uses the future teacher to supervise the restarted student.

Zheng Zhang, Xin-Yue Tan, Lu Li et al. · 0 citations

KairosAgent: Agentic Time Series Forecasting with Fused Semantic Reasoning

KairosAgent, a novel agentic framework for multimodal time series forecasting, including an LLM-based reasoner and a TSFM-based forecaster, unifies textual reasoning and numerical forecasting by dynamically invoking analytical tools to enhance the numerical understanding and semantic reasoning capabilities of LLMs.

Kun Feng, Ziwei Shan, Yu-Chen Fang et al. · 5 citations · ⚡1
#computer vision Preprint Aug 2026

AVA-Encoder: Towards Agent-Native Video Representation Learning

The Agentic Video Auto-Encoder (AVA-Encoder), a novel auto-encoding framework driven by agentic self-evolution to learn agent-native video representations that outperforms a carefully human-tuned policy while using 74.3% fewer shot-level and keyframe-level system-prompt tokens.

Chuyue Li, Jinpeng Yu, Hao-Zhe Wang et al. · 1 citation

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