Package org.apache.lucene.search.similarities

Class AfterEffectL

java.lang.Object

org.apache.lucene.search.similarities.AfterEffect

org.apache.lucene.search.similarities.AfterEffectL

public class AfterEffectL
extends AfterEffect

Model of the information gain based on Laplace's law of succession.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.lucene.search.similarities.AfterEffect

AfterEffect.NoAfterEffect

Constructor Summary

Constructors

Constructor	Description
AfterEffectL()	Sole constructor: parameter-free

Method Summary

Modifier and Type	Method	Description
final Explanation	explain(BasicStats stats, float tfn)	Returns an explanation for the score.
final float	score(BasicStats stats, float tfn)	Returns the aftereffect score.
String	toString()	Subclasses must override this method to return the code of the after effect formula.

Methods inherited from class java.lang.Object

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

Constructor Details

AfterEffectL

public AfterEffectL()

Sole constructor: parameter-free

Method Details

score

public final float score(BasicStats stats,
 float tfn)

Description copied from class: AfterEffect

Returns the aftereffect score.

Specified by:

score in class AfterEffect

explain

public final Explanation explain(BasicStats stats,
 float tfn)

Description copied from class: AfterEffect

Returns an explanation for the score.

Specified by:

explain in class AfterEffect

toString

public String toString()

Description copied from class: AfterEffect

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

Specified by:

toString in class AfterEffect