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Fanrui Zhang

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#artificial intelligence Preprint Oct 2026

Rollout-Time Intervention: Unlocking Agentic Reinforcement Learning Beyond Policy Limits

Reinforcement learning (RL) has emerged as a key paradigm for improving large language model (LLM) agents, enabling stronger reasoning, planning, and tool-use in interactive environments. However, existing agent RL methods remain fundamentally constrained by an on-policy reasoning bottleneck: when tasks exceed the mode...

Xi Chen, Rui-Xue Ding, Wang Zhigaoyuan et al. · 0 citations
#natural language process... Preprint Sep 2026

ArenaFlow: From Trajectory Ranking to Hierarchical Credit Propagation for Open-Ended Agent RL

This work proposes ArenaFlow, a hierarchical credit propagation framework for open-ended agent reinforcement learning that leverages tournament-based relative ranking to derive trajectory-level reward signals and propagates trajectory-level advantages to high-confidence pivotal steps according to tournament survival de...

Qiang Zhang, Rui-Xue Ding, Fanrui Zhang et al. · 1 citation
#artificial intelligence Preprint Sep 2026

ARISE-RL: Agentic Rubric-Grounded Iterative Self-Evolution with Reinforcement Learning

ARISE-RL, a novel full-cycle self-evolution framework that couples a task/rubric Generator and a reasoning Solver through rubric-mediated co-evolution, is proposed and ECR-Bench, an expert-calibrated rubric benchmark suite covering single-tool deep research and multi-tool travel planning is presented.

Fan-Rui Zhang, Rui-Xue Ding, Qiang Zhang et al. · 0 citations
Jul 2026

Evidence-Grounded AI for Musculoskeletal Care

OrthoPilot is a clinical artificial intelligence system powered by a large language model (LLM) that integrates hospital data streams with authoritative external knowledge for continuous musculoskeletal care and autonomously retrieves real-time imaging, laboratory, pathology and order data and translates evolving patie...

Wenjie Li, Yu-Jie Zhang, Fanrui Zhang et al. · 0 citations

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