ivory.cascade.model.potential

Class CascadeQueryPotential

java.lang.Object

ivory.smrf.model.potential.PotentialFunction

ivory.smrf.model.potential.QueryPotential

ivory.cascade.model.potential.CascadeQueryPotential

public class CascadeQueryPotential
extends QueryPotential

Author:

Lidan Wang

Constructor Summary

Constructors

Constructor and Description
CascadeQueryPotential()
CascadeQueryPotential(RetrievalEnvironment env, ExpressionGenerator generator, ScoringFunction scoringFunction)

Method Summary

Methods

Modifier and Type	Method and Description
float	computePotential()
int	getDocLen()
int	getDocno()
int	getNumberOfPostings()
int[]	getPositions()
ScoringFunction	getScoringFunction() Returns the scoring function associated with this potential.
String	getScoringFunctionName()
int	getWindowSize()
void	resetPostingsListReader()
long	termCollectionCF()
int	termCollectionDF()

Methods inherited from class ivory.smrf.model.potential.QueryPotential

configure, getMaxScore, getMinScore, getNextCandidate, initialize, reset, setNextCandidate, toString

Methods inherited from class ivory.smrf.model.potential.PotentialFunction

create

Methods inherited from class java.lang.Object

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

Constructor Detail

CascadeQueryPotential

public CascadeQueryPotential()

CascadeQueryPotential

public CascadeQueryPotential(RetrievalEnvironment env,
                     ExpressionGenerator generator,
                     ScoringFunction scoringFunction)

Method Detail

computePotential

public float computePotential()

Overrides:

computePotential in class QueryPotential

getDocLen

public int getDocLen()

getDocno

public int getDocno()

getNumberOfPostings

public int getNumberOfPostings()

getPositions

public int[] getPositions()

getScoringFunction

public ScoringFunction getScoringFunction()

Description copied from class: QueryPotential

Returns the scoring function associated with this potential.

Overrides:

getScoringFunction in class QueryPotential

Returns:

scoring function associated with this potential

getScoringFunctionName

public String getScoringFunctionName()

getWindowSize

public int getWindowSize()

resetPostingsListReader

public void resetPostingsListReader()

termCollectionCF

public long termCollectionCF()

termCollectionDF

public int termCollectionDF()