Author

Junjie Gao

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2026

Silent Failures in Multimodal Agentic Search:A Diagnostic Taxonomy and Cross-Judge Evaluation

This work builds a trajectory-level diagnostic pipeline that evaluates both answer correctness and evidence-grounding quality under a unified ReAct-style scaffold and introduces a six-category taxonomy covering modality shortcuts, phantom grounding, wrong-evidence-right-answer cases, over-retrieval laundering, cross-mo...

Zheng-Xian Wu, Junjie Gao, Kai Yang · arXiv.org · 0 citations

#natural language process... Preprint May 2026

TreeGraft: Adaptive Multi-Drafter Grafting for Tree-Based Speculative Decoding

TreeGraft is a multi-drafter framework in which drafters of different costs jointly construct a shared draft tree that outperforms the better of the two fixed single-drafter endpoint strategies by 15.1% on average and reaches a maximum gain of 26.6%.

Jiaming Fan, D. Cao, Can-Chen Huang et al. · 0 citations

Jul 2026

SearchOS-V1: Towards Robust Open-Domain Information-Seeking Agent Collaboration

This work introduces SearchOS, a system-level multi-agent framework that turns fragile, implicit search progress into explicit, persistent, and shared state, and introduces a Search Tool Middleware Harness that intercepts model and tool interactions to record grounded evidence and react to stalls or budget exhaustion.

Yuyao Zhang, Junjie Gao, Zheng-Xian Wu et al. · arXiv.org · 0 citations