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Zhenyu Huang

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Preprint Sep 2026

Doing More with Less Tokens: Hierarchical Reinforcement Learning for Efficient Coding Agents

Recently, coding agents have emerged as a dominant paradigm for real-world software engineering (SWE) scenarios, which solve complex tasks through multi-turn interactions with development environments. However, frequent interactions with environments would inevitably introduce substantial token overhead, leading to hig...

Hao-Bin Li, Liang Jiang, Zhen-Yu Huang et al. · 0 citations
Preprint Aug 2026

STEGNav: Spatio-Temporal Event Graph Reasoning for Multimodal Lifelong Object Navigation

Spatio-Temporal Event Graph Navigation is proposed, a training-free framework that extends conventional scene graphs into spatio-temporal event graphs along complementary spatial and temporal axes and demonstrates that event-driven spatio-temporal representations improve navigation reliability and cross-subtask experie...

Yang Chen, Zhen-Yu Huang, Wenbo Fu et al. · 2 citations
Preprint Sep 2026

HarnessVLN: Unifying Training-Free Embodied Navigation through an Agent Harness

Embodied navigation requires agents to ground instructions or object goals in spatial observations and translate plans into successful execution. As multimodal large language models (MLLMs) become increasingly capable, they offer stronger support for navigation without task-specific training; however, improved semantic...

Yang Chen, Li-Rong Che, Zhen-Yu Huang et al. · 5 citations · ⚡1
Preprint Aug 2026

Robust Code RL via Faulty-Code-Driven Test case Synthesis and Dense Reward Shaping

Experimental results show that RL fine-tuning of Qwen3-32B via RobustTests achieves a 3% absolute gain on LiveCodeBench, demonstrating its effectiveness in advancing LLM code generation proficiency.

Yiwen Zhang, Xiaodong Yan, Zhen-Yu Huang et al. · 0 citations
Preprint Aug 2026

Active-SWE: Benchmarking Coding Agents for Proactive Bug Fixing without Issue Reports

This work proposes a novel difficulty-aware task formulation pipeline with a dual-track evaluation framework, facilitating comprehensive evaluation of proactive bug-fixing capability, and proposes a novel difficulty-aware task formulation pipeline with a dual-track evaluation framework.

Hao-Bin Li, Ping Deng, Weizhong Qian et al. · 0 citations

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