MarkLogic 9 Product Documentationcts:fitness
cts:fitness( [$node as node()] ) as xs:float
Summary
Returns the fitness of a node, or of the context node if no node is provided. Fitness is a normalized measure of relevance that is based on how well a node matches the query issued, not taking into account the number of documents in which the query term(s) occur.
| Parameters | |
|---|---|
| node |
A node. Typically this is an item in the result sequence of a
cts:search operation.
|
Usage Notes
Fitness is similar to score, except that it is bounded.
It is similar to confidence, except that it is not influenced by term IDFs.
It is an xs:float in the range of 0.0 to 1.0.
It does not include quality.
Example
let $x := cts:search(collection(), "dog") return cts:fitness($x[1]) => Returns the fitness value for the first item in the search.