Author

Yinni Cao

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Preprint Oct 2026

FlexVDR: Learning to Allocate Matryoshka Representation Budgets for Visual Document Retrieval

Visual document retrieval relies on rich multi-vector representations to capture fine-grained evidence in document pages, but encoding and matching these representations can be computationally expensive. Existing compression and elastic representation methods expose smaller configurations, yet making multiple budgets a...

Hao-Wen Xiang, Yibo Yan, Xin Zou et al. · 0 citations

Preprint Aug 2026

AnchorFold: A Focus-Then-Fold Framework via Recursive Attention Propagation for Efficient Multi-Vector Visual Document Retrieval

This work introduces AnchorFold, a training-free focus-then-fold framework for document-side index compression, which consistently outperforms all evaluated training-free baselines at $\gamma \leq 0.20$.

Haoyu Zuo, Yibo Yan, Xin Zou et al. · 1 citation