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Wujiang Xu

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#natural language process... Preprint Oct 2026

CLIMB: Confidence-Guided Complementary Evidence for Multimodal Retrieval-Augmented Generation

Multimodal large language models (MLLMs) have shown strong visual reasoning abilities, but knowledge-intensive visual question answering often requires external textual evidence beyond the image and the model's parametric knowledge. Existing multimodal RAG systems commonly rely on Top-$K$ retrieval or reranking, which...

Hang Gao, Wu-Jiang Xu, Zhixing Zhang et al. · 0 citations
Jul 2026

ChronoMem: Version Control and Semantic Rollback for Large Language Model Agent Memory

ChronoMem is the first open-source system and benchmark for systematic semantic global memory rollback in LLM agents, and a post-exposure evaluation protocol that tests whether an agent can behave counterfactually after rollback by answering queries and summarizing history as if future updates had never occurred.

Yongye Su, Wujiang Xu, Chaoji Zuo et al. · 1 citation

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