The probabilistic distribution used to model term occurrence in information-based models.
<init>()Sole constructor. (For invocation by subclass constructors, typically implicit.)
explain(org.apache.lucene.search.similarities.BasicStats stats, double tfn, double lambda)Explains the score. Returns the name of the model only, since both tfn and
lambda are explained elsewhere.
score(org.apache.lucene.search.similarities.BasicStats stats, double tfn, double lambda)Computes the score.
toString()Subclasses must override this method to return the name of the distribution.