Package moa.evaluation

Class BasicConceptDriftPerformanceEvaluator

java.lang.Object

moa.AbstractMOAObject

moa.evaluation.BasicConceptDriftPerformanceEvaluator

All Implemented Interfaces:

java.io.Serializable, CapabilitiesHandler, LearningPerformanceEvaluator<Example<Instance>>, MOAObject

public class BasicConceptDriftPerformanceEvaluator
extends AbstractMOAObject
implements LearningPerformanceEvaluator<Example<Instance>>

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
protected double	delay
protected double	errorPrediction
protected double	inputValues
protected boolean	isWarningZone
protected double	numberChanges
protected double	numberDetections
protected double	numberDetectionsOccurred
protected double	numberWarnings
protected double	totalDelay
protected double	weightObserved

Constructor Summary

Constructors

Constructor	Description
BasicConceptDriftPerformanceEvaluator()

Method Summary

Modifier and Type	Method	Description
void	addResult(Example<Instance> example, double[] classVotes)	Adds a learning result to this evaluator.
void	addResult(Example<Instance> testInst, Prediction prediction)
void	getDescription(java.lang.StringBuilder sb, int indent)	Returns a string representation of this object.
double	getInputValues()
double	getNumberChanges()
double	getNumberChangesOccurred()
double	getNumberDetections()
double	getNumberWarnings()
Measurement[]	getPerformanceMeasurements()	Gets the current measurements monitored by this evaluator.
double	getPredictionError()
double	getTotalDelay()
double	getTotalWeightObserved()
void	reset()	Resets this evaluator.

Methods inherited from class moa.AbstractMOAObject

copy, copy, measureByteSize, measureByteSize, toString

Methods inherited from interface moa.capabilities.CapabilitiesHandler

getCapabilities

Methods inherited from interface moa.evaluation.LearningPerformanceEvaluator

defineImmutableCapabilities

Methods inherited from interface moa.MOAObject

copy, measureByteSize

Methods inherited from class java.lang.Object

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

Field Detail

weightObserved

protected double weightObserved

numberDetections

protected double numberDetections

numberDetectionsOccurred

protected double numberDetectionsOccurred

numberChanges

protected double numberChanges

numberWarnings

protected double numberWarnings

delay

protected double delay

errorPrediction

protected double errorPrediction

totalDelay

protected double totalDelay

isWarningZone

protected boolean isWarningZone

inputValues

protected double inputValues

Constructor Detail

BasicConceptDriftPerformanceEvaluator

public BasicConceptDriftPerformanceEvaluator()

Method Detail

reset

public void reset()

Description copied from interface: LearningPerformanceEvaluator

Resets this evaluator. It must be similar to starting a new evaluator from scratch.

Specified by:

reset in interface LearningPerformanceEvaluator<Example<Instance>>

addResult

public void addResult(Example<Instance> example,
                      double[] classVotes)

Description copied from interface: LearningPerformanceEvaluator

Adds a learning result to this evaluator.

Specified by:

addResult in interface LearningPerformanceEvaluator<Example<Instance>>

Parameters:

example - the example to be classified

classVotes - an array containing the estimated membership probabilities of the test instance in each class

getPerformanceMeasurements

public Measurement[] getPerformanceMeasurements()

Description copied from interface: LearningPerformanceEvaluator

Gets the current measurements monitored by this evaluator.

Specified by:

getPerformanceMeasurements in interface LearningPerformanceEvaluator<Example<Instance>>

Returns:

an array of measurements monitored by this evaluator

getTotalWeightObserved

public double getTotalWeightObserved()

getNumberDetections

public double getNumberDetections()

getInputValues

public double getInputValues()

getPredictionError

public double getPredictionError()

getNumberChanges

public double getNumberChanges()

getNumberChangesOccurred

public double getNumberChangesOccurred()

getNumberWarnings

public double getNumberWarnings()

getTotalDelay

public double getTotalDelay()

getDescription

public void getDescription(java.lang.StringBuilder sb,
                           int indent)

Description copied from interface: MOAObject

Returns a string representation of this object. Used in AbstractMOAObject.toString to give a string representation of the object.

Specified by:

getDescription in interface MOAObject

Parameters:

sb - the stringbuilder to add the description

indent - the number of characters to indent

addResult

public void addResult(Example<Instance> testInst,
                      Prediction prediction)

Specified by:

addResult in interface LearningPerformanceEvaluator<Example<Instance>>