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No More K-means: Single-Stage Sparse Coding for Efficient Multi-Vector Retrieval

Guo, Lixuan et al.
arXiv (All) · Papers
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artificial-intelligenceinformation-retrievalmachine-learning
Multi-vector retrieval (MVR) models, exemplified by ColBERT, have established new benchmarks in retrieval accuracy by preserving fine-grained token-level interactions. However, this granularity imposes prohibitive storage and retrieval efficiency bottlenecks: to manage the immense memory footprint a
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