Class SeqDrift2ChangeDetector
- java.lang.Object
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- moa.AbstractMOAObject
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- moa.options.AbstractOptionHandler
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- moa.classifiers.core.driftdetection.AbstractChangeDetector
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- moa.classifiers.core.driftdetection.SeqDrift2ChangeDetector
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- All Implemented Interfaces:
Configurable
,Serializable
,ChangeDetector
,MOAObject
,OptionHandler
public class SeqDrift2ChangeDetector extends AbstractChangeDetector
SeqDriftChangeDetector.java. This extends Abstract Change Detector as required by MOA. Pears, R., Sakthithasan, S., & Koh, Y. (2014). Detecting concept change in dynamic data streams. Machine Learning, 97(3), 259-293. doi:10.1007/s10994-013-5433-9- Version:
- $Revision: 7 $
- Author:
- Sakthithasan Sripirakas sripirakas363 at yahoo dot com
- See Also:
- Serialized Form
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Nested Class Summary
Nested Classes Modifier and Type Class Description class
SeqDrift2ChangeDetector.Block
class
SeqDrift2ChangeDetector.Repository
class
SeqDrift2ChangeDetector.Reservoir
class
SeqDrift2ChangeDetector.SeqDrift2
SeqDrift2 uses reservoir sampling to build a sequential change detection model that uses statistically sound guarantees defined using Bernstein Bound on false positive and false negative rates.
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Field Summary
Fields Modifier and Type Field Description IntOption
blockSeqDrift2Option
FloatOption
deltaSeqDrift2Option
protected SeqDrift2ChangeDetector.SeqDrift2
seqdrift
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Fields inherited from class moa.classifiers.core.driftdetection.AbstractChangeDetector
delay, estimation, isChangeDetected, isInitialized, isWarningZone
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Fields inherited from class moa.options.AbstractOptionHandler
config
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Constructor Summary
Constructors Constructor Description SeqDrift2ChangeDetector()
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description void
getDescription(StringBuilder sb, int indent)
Returns a string representation of the model.void
input(double inputValue)
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
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Methods inherited from class moa.options.AbstractOptionHandler
getCLICreationString, getOptions, getPreparedClassOption, getPurposeString, prepareClassOptions, prepareForUse, prepareForUse
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Methods inherited from class moa.AbstractMOAObject
copy, measureByteSize, measureByteSize, toString
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Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
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Methods inherited from interface moa.MOAObject
measureByteSize
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Methods inherited from interface moa.options.OptionHandler
getCLICreationString, getOptions, getPurposeString, prepareForUse, prepareForUse
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Field Detail
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seqdrift
protected SeqDrift2ChangeDetector.SeqDrift2 seqdrift
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deltaSeqDrift2Option
public FloatOption deltaSeqDrift2Option
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blockSeqDrift2Option
public IntOption blockSeqDrift2Option
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Method Detail
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input
public void input(double inputValue)
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 interfaceChangeDetector
- Specified by:
input
in classAbstractChangeDetector
- Parameters:
inputValue
- the number to insert into the change detector
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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 interfaceChangeDetector
- Overrides:
resetLearning
in classAbstractChangeDetector
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getDescription
public void getDescription(StringBuilder sb, int indent)
Description copied from class:AbstractChangeDetector
Returns a string representation of the model.- Specified by:
getDescription
in interfaceChangeDetector
- Specified by:
getDescription
in interfaceMOAObject
- Specified by:
getDescription
in classAbstractChangeDetector
- Parameters:
sb
- the stringbuilder to add the descriptionindent
- the number of characters to indent
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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 implementprepareForUseImpl
and notprepareForUse
sinceprepareForUse
callsprepareForUseImpl
.- Specified by:
prepareForUseImpl
in classAbstractOptionHandler
- Parameters:
monitor
- the TaskMonitor to userepository
- the ObjectRepository to use
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