Khattab et al. present ColBERT
Presented ColBERT — keeps queries and documents as token-level embeddings, then scores them with MaxSim (late interaction)
Why it matters
The starting point of the late interaction lineage, distinct from single-vector retrieval
Source — Primary sources first; secondary reports are labelled “Press”
Paperarxiv.orghttps://arxiv.org/abs/2004.12832Added in Week 35, 2026 · See that week