Class HDDM_A_Test
- 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.HDDM_A_Test
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- All Implemented Interfaces:
Configurable
,Serializable
,ChangeDetector
,MOAObject
,OptionHandler
public class HDDM_A_Test extends AbstractChangeDetector
Online drift detection method based on Hoeffding's bounds. HDDMA-test uses the average as estimator. It receives as input a stream of real values and returns the estimated status of the stream: STABLE, WARNING or DRIFT.
I. Frias-Blanco, J. del Campo-Avila, G. Ramos-Jimenez, R. Morales-Bueno, A. Ortiz-Diaz, and Y. Caballero-Mota, Online and non-parametric drift detection methods based on Hoeffding's bound, IEEE Transactions on Knowledge and Data Engineering, 2014. DOI 10.1109/TKDE.2014.2345382.
Parameters:
- -d : Confidence to the drift
- -w : Confidence to the warning
- -t : Option to monitor error increments and decrements (two-sided) or only increments (one-sided)
- Author:
- Isvani Frias-Blanco (ifriasb@udg.co.cu)
- See Also:
- Serialized Form
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Field Summary
Fields Modifier and Type Field Description protected double
c_max
protected double
c_min
protected double
cEstimacion
FloatOption
driftConfidenceOption
protected int
n_max
protected int
n_min
protected int
nEstimacion
MultiChoiceOption
oneSidedTestOption
protected double
total_c
protected int
total_n
FloatOption
warningConfidenceOption
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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 HDDM_A_Test()
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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.double
getEstimation()
Gets the prediction of next values.void
input(double value)
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.protected void
updateEstimations()
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Methods inherited from class moa.classifiers.core.driftdetection.AbstractChangeDetector
copy, getChange, getDelay, 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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driftConfidenceOption
public FloatOption driftConfidenceOption
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warningConfidenceOption
public FloatOption warningConfidenceOption
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oneSidedTestOption
public MultiChoiceOption oneSidedTestOption
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n_min
protected int n_min
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c_min
protected double c_min
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total_n
protected int total_n
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total_c
protected double total_c
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n_max
protected int n_max
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c_max
protected double c_max
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cEstimacion
protected double cEstimacion
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nEstimacion
protected int nEstimacion
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Method Detail
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input
public void input(double value)
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:
value
- 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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updateEstimations
protected void updateEstimations()
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getEstimation
public double getEstimation()
Description copied from class:AbstractChangeDetector
Gets the prediction of next values.- Specified by:
getEstimation
in interfaceChangeDetector
- Overrides:
getEstimation
in classAbstractChangeDetector
- Returns:
- a prediction of the next value
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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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