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Author

Ziqi Zhang

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Jul 2026

MMAgent-R2: Learning to Rerank and Reject for Agentic mRAG

MMAgent-R$^2$, an agentic mRAG framework that integrates visual reranking and active rejection as its internal verification mechanism, is proposed and achieves joint optimization of external retrieval, internal verification, and answer generation via GRPO training.

Tao Zhang, Ziqi Zhang, Zongyang Ma et al. · 0 citations
Jul 2026

Gaussian Mixture Modeling for Event-Aware Visual Allocation in Long Video Understanding

Gaussian Mixture Modeling for Event-Aware Visual Allocation is proposed, which leverages Gaussian Mixture Models to model event-level structure from discrete frame-wise observations and achieves comparable performance to baseline selection methods while utilizing only approximately half of the visual token budget.

Yifan Lu, Ziqi Zhang, C. Yuan et al. · 0 citations

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