一作SIGIR 2026Poster· Information Retrieval (Short)
Efficient Multivector Retrieval with Token-Aware Clustering and Hierarchical Indexing
Silvio Martinico · Franco Maria Nardini · Cosimo Rulli · Rossano Venturini
摘要
Multivector retrieval models achieve state-of-the-art effectiveness through fine-grained token-level representations, but their deployment incurs substantial computational and memory costs. Current solutions---based on the well-known κ-means clustering algorithm---group similar vectors together t...