core/org.gnit.lucenekmp.search.similarities/AfterEffectB

AfterEffectB

class AfterEffectB : AfterEffect

Model of the information gain based on the ratio of two Bernoulli processes.

Constructors

constructor()

Sole constructor: parameter-free

Functions

override fun explain(stats: BasicStats, tfn: Double): Explanation

Returns an explanation for the score.

scoreTimes1pTfn

open override fun scoreTimes1pTfn(stats: BasicStats): Double

Returns the product of the after effect with 1+tfn. This may not depend on the value of tfn.

open override fun toString(): String

Subclasses must override this method to return the code of the after effect formula. Refer to the original paper for the list.