ivory.pwsim.score

Class Bm25

java.lang.Object

ivory.pwsim.score.ScoringModel

ivory.pwsim.score.Bm25

public class Bm25
extends ScoringModel

Constructor Summary

Constructors

Constructor and Description
Bm25()

Method Summary

Methods

Modifier and Type	Method and Description
float	computeDocumentWeight(float doc_tf, float df, int doc_len)
float	computeDocumentWeight(int doc_tf, int doc_len)
float	computeQueryWeight(int q_tf, int q_len)
float	computeScore(int q_tf, int doc_tf, int q_len, int doc_len)

Methods inherited from class ivory.pwsim.score.ScoringModel

computeDocumentWeight, computeQueryWeight, computeScore, setAvgDocLength, setDF, setDocCount

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Bm25

public Bm25()

Method Detail

computeDocumentWeight

public float computeDocumentWeight(float doc_tf,
                          float df,
                          int doc_len)

computeDocumentWeight

public float computeDocumentWeight(int doc_tf,
                          int doc_len)

Specified by:

computeDocumentWeight in class ScoringModel

computeQueryWeight

public float computeQueryWeight(int q_tf,
                       int q_len)

Specified by:

computeQueryWeight in class ScoringModel

computeScore

public float computeScore(int q_tf,
                 int doc_tf,
                 int q_len,
                 int doc_len)

Specified by:

computeScore in class ScoringModel