Class DistributionLL
java.lang.Object
org.apache.lucene.search.similarities.Distribution
org.apache.lucene.search.similarities.DistributionLL
Log-logistic distribution.
Unlike for DFR, the natural logarithm is used, as it is faster to compute and the original paper does not express any preference to a specific base.
- WARNING: This API is experimental and might change in incompatible ways in the next release.
-
Constructor Summary
-
Method Summary
Modifier and TypeMethodDescriptionfinal double
score
(BasicStats stats, double tfn, double lambda) Computes the score.toString()
Subclasses must override this method to return the name of the distribution.Methods inherited from class org.apache.lucene.search.similarities.Distribution
explain
-
Constructor Details
-
DistributionLL
public DistributionLL()Sole constructor: parameter-free
-
-
Method Details
-
score
Description copied from class:Distribution
Computes the score.- Specified by:
score
in classDistribution
-
toString
Description copied from class:Distribution
Subclasses must override this method to return the name of the distribution.- Specified by:
toString
in classDistribution
-