Definition
Reciprocal rank fusion
Scores from independently calibrated systems are commensurable only in rank, not in magnitude.
- Rank
- the document's rank in result list i
- Damping
- a constant that softens the top ranks
Where it appears
Each mechanism states it in its own names. The general symbol each name stands for is shown with it.
- Specialized Processing Models
What do you build when a query predicate cannot be reduced to a range over an ordered key?