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Yu Gu

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#natural language process... Preprint Oct 2026

Test-Time Memory Construction

Large Language Models (LLMs) struggle to answer questions over long interaction histories, where relevant evidence may be scattered across distant sessions. Existing memory systems typically construct and maintain sophisticated memory representations offline, before user queries are observed, incurring substantial over...

Zi-Jun Wang, Yi-Fan Ji, Haidong Xin et al. · 0 citations
Preprint Aug 2026

ConceptFormer: Learning Adaptive Latent Concepts for Query-Document Alignment in Visual Document Retrieval

ConceptFormer models query-relevant evidence as continuous, query-conditioned latent concepts that explicitly bridge localized visual evidence and semantic relevance, without requiring either textual intermediate representations or direct reliance on raw visual annotations.

Chunyi Peng, Zhi-Peng Xu, Yu-Kun Yan et al. · 0 citations
Jul 2026

REFACT: Adaptive Fact Restatement for Compact and Faithful Chain-of-Thought Reasoning

REFACT is an adaptive fact-restatement citation framework that enables LLMs to determine when contextual grounding is needed and selectively restate source facts at appropriate levels of detail for reliable reasoning.

Zhensheng Jin, Xin Dai, Zhenghao Liu et al. · 0 citations

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