# Uses of Class
org.apache.lucene.search.similarities.AfterEffect

Packages that use AfterEffect
Package
Description
org.apache.lucene.search.similarities
This package contains the various ranking models that can be used in Lucene.

## Uses of AfterEffect in org.apache.lucene.search.similarities

Subclasses of AfterEffect in org.apache.lucene.search.similarities
Modifier and Type
Class
Description
`class`
`AfterEffectB`
Model of the information gain based on the ratio of two Bernoulli processes.
`class`
`AfterEffectL`
Model of the information gain based on Laplace's law of succession.
Fields in org.apache.lucene.search.similarities declared as AfterEffect
Modifier and Type
Field
Description
`protected final AfterEffect`
DFRSimilarity.`afterEffect`
The first normalization of the information content.
Methods in org.apache.lucene.search.similarities that return AfterEffect
Modifier and Type
Method
Description
`AfterEffect`
DFRSimilarity.`getAfterEffect()`
Returns the first normalization
Constructors in org.apache.lucene.search.similarities with parameters of type AfterEffect
Modifier
Constructor
Description
``
`DFRSimilarity(BasicModel basicModel, AfterEffect afterEffect, Normalization normalization)`
Creates DFRSimilarity from the three components and using default discountOverlaps value.
``
`DFRSimilarity(BasicModel basicModel, AfterEffect afterEffect, Normalization normalization, boolean discountOverlaps)`
Creates DFRSimilarity from the three components and with the specified discountOverlaps value.