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Sponsored Artificial Intelligence: A Modern Approach, Global Edition Artificial Intelligence: A Modern Approach, Global Edition

Author

Hua Liu

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Preprint Sep 2026

MAGIC: Marginal-Guided Compression with Optimal Transport for Efficient Visual Document Retrieval

Recent visual document retrieval (VDR) systems such as ColPali use multi-vector page embeddings, in which patch-level vectors enable fine-grained evidence matching but incur substantial index storage and MaxSim scoring overhead. Post-hoc merging offers a practical route to efficient VDR by reducing this cost without re...

Xu Yuan, Hua Liu, Wen-Qi Fan et al. · 0 citations

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