moa.classifiers.core.driftdetection

Class DDM

java.lang.Object

moa.AbstractMOAObject

moa.options.AbstractOptionHandler

moa.classifiers.core.driftdetection.AbstractChangeDetector

moa.classifiers.core.driftdetection.DDM

All Implemented Interfaces:

Serializable, ChangeDetector, MOAObject, OptionHandler

public class DDM
extends AbstractChangeDetector

Drift detection method based in DDM method of Joao Gama SBIA 2004.

João Gama, Pedro Medas, Gladys Castillo, Pedro Pereira Rodrigues: Learning with Drift Detection. SBIA 2004: 286-295

Version:

$Revision: 7 $

Author:

Manuel Baena (mbaena@lcc.uma.es)

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
IntOption	minNumInstancesOption

Fields inherited from class moa.classifiers.core.driftdetection.AbstractChangeDetector

delay, estimation, isChangeDetected, isInitialized, isWarningZone

Fields inherited from class moa.options.AbstractOptionHandler

classOptionNamesToPreparedObjects, options

Constructor Summary

Constructors

Constructor and Description
DDM()

Method Summary

Methods

Modifier and Type	Method and Description
void	getDescription(StringBuilder sb, int indent) Returns a string representation of the model.
void	input(double prediction) Adding a numeric value to the change detector The output of the change detector is modified after the insertion of a new item inside.
protected void	prepareForUseImpl(TaskMonitor monitor, ObjectRepository repository) This method describes the implementation of how to prepare this object for use.
void	resetLearning() Resets this change detector.

Methods inherited from class moa.classifiers.core.driftdetection.AbstractChangeDetector

copy, getChange, getDelay, getEstimation, getOutput, getWarningZone

Methods inherited from class moa.options.AbstractOptionHandler

discoverOptionsViaReflection, getCLICreationString, getOptions, getPreparedClassOption, getPreparedClassOption, getPurposeString, prepareClassOptions, prepareForUse, prepareForUse

Methods inherited from class moa.AbstractMOAObject

copy, measureByteSize, measureByteSize, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface moa.options.OptionHandler

getCLICreationString, getOptions, getPurposeString, prepareForUse, prepareForUse

Methods inherited from interface moa.MOAObject

measureByteSize

Field Detail

minNumInstancesOption

public IntOption minNumInstancesOption

Constructor Detail

DDM

public DDM()

Method Detail

resetLearning

public void resetLearning()

Description copied from class: AbstractChangeDetector

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

Specified by:

resetLearning in interface ChangeDetector

Overrides:

resetLearning in class AbstractChangeDetector

input

public void input(double prediction)

Description copied from class: AbstractChangeDetector

Adding a numeric value to the change detector

The output of the change detector is modified after the insertion of a new item inside.

Specified by:

input in interface ChangeDetector

Specified by:

input in class AbstractChangeDetector

Parameters:

prediction - the number to insert into the change detector

getDescription

public void getDescription(StringBuilder sb,
                  int indent)

Description copied from class: AbstractChangeDetector

Returns a string representation of the model.

Specified by:

getDescription in interface ChangeDetector

Specified by:

getDescription in interface MOAObject

Specified by:

getDescription in class AbstractChangeDetector

Parameters:

sb - the stringbuilder to add the description

indent - the number of characters to indent

prepareForUseImpl

protected void prepareForUseImpl(TaskMonitor monitor,
                     ObjectRepository repository)

Description copied from class: AbstractOptionHandler

This method describes the implementation of how to prepare this object for use. All classes that extends this class have to implement prepareForUseImpl and not prepareForUse since prepareForUse calls prepareForUseImpl.

Specified by:

prepareForUseImpl in class AbstractOptionHandler

Parameters:

monitor - the TaskMonitor to use

repository - the ObjectRepository to use