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Yueqing Sun

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#artificial intelligence Preprint Sep 2026

Consistent Plan-Act for Long-Horizon Agentic Tasks

Long-horizon agentic tasks demand strong reasoning and efficient execution across successive interactions with dynamic environments. A common approach decouples high-level planning from low-level execution through separate planner and actor roles. To investigate coordination failures in these tasks, we prompt both agen...

Heng-Zhuang Li, Yi-Kai Zhang, Yu Wang et al. · 0 citations
#artificial intelligence Preprint Sep 2026

PluginRSI: Recursive Improvement of Agent Harnesses with Reusable Plugins

This work introduces PluginRSI, which represents a harness as a composition of atomized plugins and organizes harness evolution around these plugins, and shows that accumulating reusable mechanisms provides an effective basis for continued harness improvement.

Yao-Rui Shi, Yu-Chun Miao, Yu-Xin Chen et al. · 0 citations
Preprint Aug 2026

UrbanGround: From Local Perception to Spatial Agency in a Real-Scale City

This paper proposes UrbanGround, the first sandbox to make this question testable in a physically constrained replica of Hong Kong built from territory-wide 3D geospatial data, and hopes it will support broader study of how far current MLLM agents can explore reliably in complex, open-ended urban environments.

Tianjie Ju, Zheng Wu, Yue-Qing Sun et al. · 1 citation
Jul 2026

CAST: Game Solvers as Turn-Level Teachers for LLM Agents

CAST (Credit Assignment from Solver Teachers), which converts value changes in a game solver's state value into solver advantages and injects them into RLVR as turn-level signals and achieves the highest average zero-shot performance on ALFWorld and WebShop.

Yu Wang, Yi-Kai Zhang, Wentao Shi et al. · 0 citations
Preprint Aug 2026

AgentOPSD: Recursive Self-Distillation for Agentic Reinforcement Learning

This work proposes AgentOPSD, a critic-free, recursive method for turn-level credit assignment in agentic reinforcement learning that aggregates token-level teacher-student log-probability gaps into turn-level evidence and recursively updates a Bayesian belief state in log-odds space.

Zi-Han Wang, Zhengxi Lu, Zhiyuan Yao et al. · 7 citations · ⚡1

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