meka.classifiers.multilabel

Class BRq

java.lang.Object

weka.classifiers.AbstractClassifier

weka.classifiers.SingleClassifierEnhancer

meka.classifiers.multilabel.ProblemTransformationMethod

meka.classifiers.multilabel.BRq

All Implemented Interfaces:

Serializable, Cloneable, MultiLabelClassifier, weka.classifiers.Classifier, weka.core.BatchPredictor, weka.core.CapabilitiesHandler, weka.core.CapabilitiesIgnorer, weka.core.CommandlineRunnable, weka.core.OptionHandler, weka.core.Randomizable, weka.core.RevisionHandler, weka.core.TechnicalInformationHandler

public class BRq
extends ProblemTransformationMethod
implements weka.core.Randomizable, weka.core.TechnicalInformationHandler

BRq.java - Random Subspace ('quick') Version. Like BR, but randomly samples the attribute space for each binary model. Intended for use in an ensemble (but will work in a standalone fashion also).
See: Jesse Read, Bernhard Pfahringer, Geoff Holmes, Eibe Frank. Classifier Chains for Multi-label Classification. Machine Learning Journal. Springer. Vol. 85(3), pp 333-359. (May 2011).

Version:

January 2009

Author:

Jesse Read (jmr30@cs.waikato.ac.nz)

See Also:

BR, Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
protected double	m_DownSampleRatio The downsample ratio
protected weka.classifiers.Classifier[]	m_MultiClassifiers
protected Random	m_Random
protected int	m_S The random generator

Fields inherited from class meka.classifiers.multilabel.ProblemTransformationMethod

m_InstancesTemplate

Fields inherited from class weka.classifiers.SingleClassifierEnhancer

m_Classifier

Fields inherited from class weka.classifiers.AbstractClassifier

BATCH_SIZE_DEFAULT, m_BatchSize, m_Debug, m_DoNotCheckCapabilities, m_numDecimalPlaces, NUM_DECIMAL_PLACES_DEFAULT

Constructor Summary

Constructors

Constructor and Description
BRq()

Method Summary

Modifier and Type	Method and Description
void	buildClassifier(weka.core.Instances data)
protected weka.core.Instance[]	convertInstance(weka.core.Instance instance, int c)
double[]	distributionForInstance(weka.core.Instance instance)
String	downSampleRatioTipText()
double	getDownSampleRatio()
String[]	getOptions()
String	getRevision()
int	getSeed()
weka.core.TechnicalInformation	getTechnicalInformation()
String	globalInfo() Description to display in the GUI.
Enumeration	listOptions()
static void	main(String[] args)
String	seedTipText()
void	setDownSampleRatio(double value)
void	setOptions(String[] options)
void	setSeed(int s)

Methods inherited from class meka.classifiers.multilabel.ProblemTransformationMethod

defaultClassifierString, evaluation, getCapabilities, getModel, getTemplate, makeCopies, runClassifier, testCapabilities, toString

Methods inherited from class weka.classifiers.SingleClassifierEnhancer

classifierTipText, defaultClassifierOptions, getClassifier, getClassifierSpec, postExecution, preExecution, setClassifier

Methods inherited from class weka.classifiers.AbstractClassifier

batchSizeTipText, classifyInstance, debugTipText, distributionsForInstances, doNotCheckCapabilitiesTipText, forName, getBatchSize, getDebug, getDoNotCheckCapabilities, getNumDecimalPlaces, implementsMoreEfficientBatchPrediction, makeCopies, makeCopy, numDecimalPlacesTipText, run, runClassifier, setBatchSize, setDebug, setDoNotCheckCapabilities, setNumDecimalPlaces

Methods inherited from class java.lang.Object

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

Methods inherited from interface meka.classifiers.multilabel.MultiLabelClassifier

debugTipText, getDebug, setDebug

Methods inherited from interface weka.classifiers.Classifier

classifyInstance

Field Detail

m_DownSampleRatio

protected double m_DownSampleRatio

The downsample ratio

m_S

protected int m_S

The random generator

m_Random

protected Random m_Random

m_MultiClassifiers

protected weka.classifiers.Classifier[] m_MultiClassifiers

Constructor Detail

BRq

public BRq()

Method Detail

globalInfo

public String globalInfo()

Description to display in the GUI.

Overrides:

globalInfo in class ProblemTransformationMethod

Returns:

the description

getTechnicalInformation

public weka.core.TechnicalInformation getTechnicalInformation()

Specified by:

getTechnicalInformation in interface weka.core.TechnicalInformationHandler

buildClassifier

public void buildClassifier(weka.core.Instances data)
                     throws Exception

Specified by:

buildClassifier in interface weka.classifiers.Classifier

Specified by:

buildClassifier in class ProblemTransformationMethod

Throws:

Exception

convertInstance

protected weka.core.Instance[] convertInstance(weka.core.Instance instance,
                                               int c)

distributionForInstance

public double[] distributionForInstance(weka.core.Instance instance)
                                 throws Exception

Specified by:

distributionForInstance in interface weka.classifiers.Classifier

Specified by:

distributionForInstance in class ProblemTransformationMethod

Throws:

Exception

setSeed

public void setSeed(int s)

Specified by:

setSeed in interface weka.core.Randomizable

getSeed

public int getSeed()

Specified by:

getSeed in interface weka.core.Randomizable

seedTipText

public String seedTipText()

setDownSampleRatio

public void setDownSampleRatio(double value)

getDownSampleRatio

public double getDownSampleRatio()

downSampleRatioTipText

public String downSampleRatioTipText()

listOptions

public Enumeration listOptions()

Specified by:

listOptions in interface weka.core.OptionHandler

Overrides:

listOptions in class weka.classifiers.SingleClassifierEnhancer

setOptions

public void setOptions(String[] options)
                throws Exception

Specified by:

setOptions in interface weka.core.OptionHandler

Overrides:

setOptions in class weka.classifiers.SingleClassifierEnhancer

Throws:

Exception

getOptions

public String[] getOptions()

Specified by:

getOptions in interface weka.core.OptionHandler

Overrides:

getOptions in class weka.classifiers.SingleClassifierEnhancer

getRevision

public String getRevision()

Specified by:

getRevision in interface weka.core.RevisionHandler

Overrides:

getRevision in class ProblemTransformationMethod

main

public static void main(String[] args)