A curated lineage of 23 papers, 2020–2025, connected by 33 explicit citation edges taken from the papers themselves. Solid, saturated nodes use a lexical inverted or sparse index directly; lighter, dashed nodes are adjacent branches — token-retrieval optimization, pruning, centroid streaming, bit-vector and fixed-dimensional alternatives, and retrieval engines. No citation counts or popularity metrics were measured.
Solid outline and saturated colour = the paper builds directly on a lexical inverted or sparse index. Dashed outline and muted fill = adjacent branch that does not literally use one. Small nodes are less-popular or niche references surfaced by the 2025 pruning paper. Arrows point from cited paper to citing paper.
| Paper | Year | Venue | Branch | How it indexes / retrieves | Source |
|---|
A discovery appendix of plausible post-2022 indexed late-interaction and multi-vector papers found during the search. These are not evidence of direct citation edges in the graph above; scope labels are approximate and metadata may be partial.
| Paper | Year | Venue | Source |
|---|
Curated technical lineage, not an exhaustive citation-index export. Built from a 14-paper curated node table, 33 deduplicated explicit citation edges, a 161-row evidence set and a 166-row candidate table gathered from ACL Anthology, ACM DL, NeurIPS, arXiv, author pages and Google Research. Year corrections applied: XTR is NeurIPS 2023, CITADEL is ACL 2023, ColBERTv2 and PLAID are 2022; SPLATE and XTR title variants deduplicated. Arrows encode only citations stated in the papers; no citation counts or popularity measures were taken. Appendix trimmed to distinct titles for space.