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.
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Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionfinal doublescore(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
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Constructor Details
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DistributionLL
public DistributionLL()Sole constructor: parameter-free
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Method Details
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score
Description copied from class:DistributionComputes the score.- Specified by:
scorein classDistribution
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toString
Description copied from class:DistributionSubclasses must override this method to return the name of the distribution.- Specified by:
toStringin classDistribution
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