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Guo-Yang Xu

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#artificial intelligence Preprint Oct 2026

What Coding Agents Leave Unsaid: Measuring Task-State Gaps Between Execution and Reports

Human supervisors rely on coding agents'reports to assess progress, verify repairs, and decide when to intervene. But a supervisor cannot investigate a failure they were never told occurred. Failed attempts, workarounds, and unresolved risks may disappear from routine reports, leaving supervisors unaware of issues that...

Guo-Yang Xu, Rui Zhang, Xiu-Yu Wu et al. · 0 citations
Preprint Aug 2026

VideoHarness-RSI: Recursive Harness Self-Improvement for Long-Video Understanding with Frozen Vision-Language Models

VideoHarness-RSI is introduced, a controlled framework that recursively searches executable context constructors around a frozen VLM while keeping the answering model and interface fixed and establish executable context construction as a distinct optimization layer and provide an auditable baseline for studying harness...

Guo-Yang Xu, Hao Chen · 2 citations · ⚡1
Jul 2026

MMLDSum-LLM: Multimodal Long-Document Summarization with Visual-Alignment and Keyword-Aware

This work introduces MMLDSum-Bench, a high-quality benchmark for multimodal long-document summarization, and proposes MMLDSum-LLM, a reproducible two-stage training framework that combines supervised fine-tuning with visual-alignment weighted loss and keyword-aware weighted loss, followed by GRPO with a multi-objective...

Xianpeng Zhang, Jiahuai Yang, Dong Chen et al. · 0 citations

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