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Hexuan Deng

Harbin Institute of Technology (ShenZhen)

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#artificial intelligence Preprint Oct 2026

GRPODropout: Less is More for Online Reinforcement Learning Rollouts

Reinforcement learning (RL) methods such as GRPO substantially improve large language model reasoning but often suffer from policy entropy collapse: the loss of sampling diversity weakens exploration and limits further improvement. Existing methods address this issue either through algorithm-level interventions, such a...

Hexuan Deng, Zi-Hao Yan, Xue-Bo Liu et al. · 0 citations
#artificial intelligence Preprint Oct 2026

SWE-Journey: Towards More Realistic Evaluation of Coding Assistants through Long-Horizon, Multi-Turn Interaction

Coding assistants such as Claude Code and Codex have become a major application of LLM agents, yet existing benchmarks remain far from real-world use, particularly in task horizon and interaction length. Code assistants require completing long chains of development work in continuously evolving repositories, while repe...

Hexuan Deng, Yue Wang, Wen-Yu Jiang et al. · 0 citations
Preprint Oct 2026

AutoGUIWorld: Image Generators as Visual World Models for GUI Agent

GUI agents require high-quality interaction trajectories to learn how software environments respond to actions, maintain state, and support multi-step workflows. However, the diversity of available trajectories is constrained by the applications, interface states, and workflows accessible in the underlying environments...

Cheng Yang, Yi-Fan Wu, Yu-Tao Huang et al. · 0 citations

MemoNoveltyAgent: A Historical Research Memory-Aware Agent Workflow for Paper Novelty Assessment

This work introduces MemoNoveltyAgent, a multi-agent system designed to generate comprehensive and faithful novelty reports, and proposes a RAG-augmented checklist evaluation method that enables reliable and evidence-grounded assessments.

Jiajun Hou, Hexuan Deng, Wenxiang Jiao et al. · 0 citations

Distilled Reinforcement Learning for LLM Post-training

Extensive experiments show that Distilled RL substantially outperforms standard RL and OPD in terms of both pass@1 and pass@k, and can effectively transfer previously unavailable knowledge from a teacher model to a student model.

Chen Wang, Zhaochun Li, Jionghao Bai et al. · 2 citations
Preprint Aug 2026

CRISP: Critical Step Perception for Training Efficient Deep Search Agents

This paper proposes CRISP, a framework for training efficient deep search agents through critical step perception that distinguishes interactions that gather necessary evidence from redundant ones and shapes the training reward to preserve the former while pruning the latter, improving efficiency without sacrificing th...

Haosi Mo, Zihao Yan, Ruiqing Zhang et al. · 0 citations

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