ivory.cascade.model.score

Class CascadeBM25ScoringFunction

java.lang.Object

ivory.smrf.model.score.ScoringFunction

ivory.smrf.model.score.BM25ScoringFunction

ivory.cascade.model.score.CascadeBM25ScoringFunction

public class CascadeBM25ScoringFunction
extends BM25ScoringFunction

Author:

Lidan Wang

Field Summary

Fields

Modifier and Type	Field and Description
static float	staticB
static float	staticK1

Constructor Summary

Constructors

Constructor and Description
CascadeBM25ScoringFunction()

Method Summary

Methods

Modifier and Type	Method and Description
void	configure(Node domNode) Configures this scoring function.
float	getScore(int tf, int docLen) Computes score.
void	initialize(GlobalTermEvidence termEvidence, GlobalEvidence globalEvidence) Initializes this scoring function with global evidence.

Methods inherited from class ivory.smrf.model.score.BM25ScoringFunction

getMaxScore, getMinScore, setB, setK1, toString

Methods inherited from class ivory.smrf.model.score.ScoringFunction

create, getGlobalEvidence, getGlobalTermEvidence

Methods inherited from class java.lang.Object

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

Field Detail

staticB

public static float staticB

staticK1

public static float staticK1

Constructor Detail

CascadeBM25ScoringFunction

public CascadeBM25ScoringFunction()

Method Detail

configure

public void configure(Node domNode)

Description copied from class: ScoringFunction

Configures this scoring function.

Overrides:

configure in class BM25ScoringFunction

Parameters:

domNode - DOM node containing configuration data

getScore

public float getScore(int tf,
             int docLen)

Description copied from class: ScoringFunction

Computes score.

Overrides:

getScore in class BM25ScoringFunction

initialize

public void initialize(GlobalTermEvidence termEvidence,
              GlobalEvidence globalEvidence)

Description copied from class: ScoringFunction

Initializes this scoring function with global evidence.

Overrides:

initialize in class BM25ScoringFunction

Parameters:

termEvidence - term evidence

globalEvidence - global evidence