org.apache.lucene.search.similarities

Class IndependenceSaturated

java.lang.Object

org.apache.lucene.search.similarities.Independence

org.apache.lucene.search.similarities.IndependenceSaturated

public class IndependenceSaturated
extends Independence

Saturated measure of distance from independence

Described as: "for tasks that require high recall against long queries"

WARNING: This API is experimental and might change in incompatible ways in the next release.

Constructor Summary

Constructors

Constructor and Description
IndependenceSaturated() Sole constructor.

Method Summary

Modifier and Type	Method and Description
float	score(float freq, float expected) Computes distance from independence
String	toString()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

IndependenceSaturated

public IndependenceSaturated()

Sole constructor.

Method Detail

score

public float score(float freq,
                   float expected)

Description copied from class: Independence

Computes distance from independence

Specified by:

score in class Independence

Parameters:

freq - actual term frequency

expected - expected term frequency

toString

public String toString()

Specified by:

toString in class Independence