Package ciir.umass.edu.learning.tree

Class RFRanker

java.lang.Object

ciir.umass.edu.learning.Ranker

ciir.umass.edu.learning.tree.RFRanker

public class RFRanker
extends Ranker

Field Summary

Fields

Modifier and Type	Field	Description
protected Ensemble[]	ensembles
static float	featureSamplingRate
static float	learningRate
static int	minLeafSupport
static int	nBag
static int	nThreshold
static int	nTreeLeaves
static int	nTrees
static RANKER_TYPE	rType
static float	subSamplingRate

Fields inherited from class ciir.umass.edu.learning.Ranker

bestScoreOnValidationData, features, samples, scoreOnTrainingData, scorer, validationSamples, verbose

Constructor Summary

Constructors

Constructor	Description
RFRanker()
RFRanker(java.util.List<RankList> samples, int[] features, MetricScorer scorer)

Method Summary

Modifier and Type	Method	Description
Ranker	createNew()
double	eval(DataPoint dp)
Ensemble[]	getEnsembles()
void	init()	HAVE TO BE OVER-RIDDEN IN SUB-CLASSES
void	learn()
void	loadFromString(java.lang.String fullText)
java.lang.String	model()
java.lang.String	name()
void	printParameters()
java.lang.String	toString()

Methods inherited from class ciir.umass.edu.learning.Ranker

copy, getFeatures, getScoreOnTrainingData, getScoreOnValidationData, PRINT, PRINT, PRINT_MEMORY_USAGE, PRINTLN, PRINTLN, PRINTTIME, rank, rank, save, setFeatures, setMetricScorer, setTrainingSet, setValidationSet

Methods inherited from class java.lang.Object

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

Field Detail

nBag

public static int nBag

subSamplingRate

public static float subSamplingRate

featureSamplingRate

public static float featureSamplingRate

rType

public static RANKER_TYPE rType

nTrees

public static int nTrees

nTreeLeaves

public static int nTreeLeaves

learningRate

public static float learningRate

nThreshold

public static int nThreshold

minLeafSupport

public static int minLeafSupport

ensembles

protected Ensemble[] ensembles

Constructor Detail

RFRanker

public RFRanker()

RFRanker

public RFRanker(java.util.List<RankList> samples,
                int[] features,
                MetricScorer scorer)

Method Detail

init

public void init()

Description copied from class: Ranker

HAVE TO BE OVER-RIDDEN IN SUB-CLASSES

Specified by:

init in class Ranker

learn

public void learn()

Specified by:

learn in class Ranker

eval

public double eval(DataPoint dp)

Overrides:

eval in class Ranker

createNew

public Ranker createNew()

Specified by:

createNew in class Ranker

toString

public java.lang.String toString()

Specified by:

toString in class Ranker

model

public java.lang.String model()

Specified by:

model in class Ranker

loadFromString

public void loadFromString(java.lang.String fullText)

Specified by:

loadFromString in class Ranker

printParameters

public void printParameters()

Specified by:

printParameters in class Ranker

name

public java.lang.String name()

Specified by:

name in class Ranker

getEnsembles

public Ensemble[] getEnsembles()