AI Glossary
Reciprocal rank fusion
Also called RRF
What does “Reciprocal rank fusion” mean?
Reciprocal rank fusion: A way to merge ranked lists by giving more weight to higher positions and adding each item's contributions. It works with ranks even when the original scoring systems use different scales.

What is an example of “Reciprocal rank fusion”?
A help center merges a keyword list and a vector list, promoting pages near the top of both.