Package org.apache.lucene.search.similarities

Class BasicModelG

java.lang.Object

org.apache.lucene.search.similarities.BasicModel

org.apache.lucene.search.similarities.BasicModelG

public class BasicModelG
extends BasicModel

Geometric as limiting form of the Bose-Einstein model. The formula used in Lucene differs slightly from the one in the original paper: F is increased by 1 and N is increased by F.

Constructor Summary

Constructors

Constructor	Description
BasicModelG()	Sole constructor: parameter-free

Method Summary

Modifier and Type	Method	Description
final float	score(BasicStats stats, float tfn)	Returns the informative content score.
String	toString()	Subclasses must override this method to return the code of the basic model formula.

Methods inherited from class org.apache.lucene.search.similarities.BasicModel

explain

Methods inherited from class java.lang.Object

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

Constructor Details

BasicModelG

public BasicModelG()

Sole constructor: parameter-free

Method Details

score

public final float score(BasicStats stats,
 float tfn)

Description copied from class: BasicModel

Returns the informative content score.

Specified by:

score in class BasicModel

toString

public String toString()

Description copied from class: BasicModel

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

Specified by:

toString in class BasicModel