Expand description
Reciprocal rank fusion across independent lexical queries.
A plan issues several queries because they fail differently: an entity query finds everything about a person but ranks it arbitrarily; a topic query ranks well but misses records that never name the topic. Fusing on rank rather than score means one query’s score scale cannot dominate another’s.
Structs§
- Fused
Candidate - A candidate after fusion.
Constants§
- RRF_K
- The RRF smoothing constant. 60 is the value from the original TREC work and behaves well when result lists are short.
Functions§
- reciprocal_
rank_ fusion - Fuse per-query result lists into one ranking.