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Relative performance degradation at various pooling factors using PLAID-indexed 2-bit vectors. fiqa at factor 6 is truncated for readability.

Relative performance degradation at various pooling factors using PLAID-indexed 2-bit vectors. fiqa at factor 6 is truncated for readability.

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Figure 1: Relative performance degradation at various pooling factors...
Figure 2: Relative performance degradation at various pooling factors...
Reducing the Footprint of Multi-Vector Retrieval with Minimal Performance Impact via Token Pooling
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  • Sep 2024
Over the last few years, multi-vector retrieval methods, spearheaded by ColBERT, have become an increasingly popular approach to Neural IR. By storing representations at the token level rather than at the document level, these methods have demonstrated very strong retrieval performance, especially in out-of-domain settings. However, the storage and...
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... above, we report the detailed results in Table 2, with the full sequential results truncated, and the overview of relative performance degradation with hierarchical pooling in Figure 2. ...