org.hawkular.datamining.forecast

Class AutomaticForecaster.ErrorChangeStrategy

java.lang.Object

org.hawkular.datamining.forecast.AutomaticForecaster.ConceptDriftStrategy

org.hawkular.datamining.forecast.AutomaticForecaster.ErrorChangeStrategy

Enclosing class:

AutomaticForecaster

public static class AutomaticForecaster.ErrorChangeStrategy
extends AutomaticForecaster.ConceptDriftStrategy

Changes model if run accuracy differs by X percent to init accuracy (MSE, MAE).

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	AutomaticForecaster.ErrorChangeStrategy.Statistics

Field Summary

Fields inherited from class org.hawkular.datamining.forecast.AutomaticForecaster.ConceptDriftStrategy

forecaster

Constructor Summary

Constructors

Constructor and Description
ErrorChangeStrategy(int percentageChange, AutomaticForecaster.ErrorChangeStrategy.Statistics statistics)

Method Summary

Modifier and Type	Method and Description
boolean	equals(Object o)
int	getPercentageChange()
AutomaticForecaster.ErrorChangeStrategy.Statistics	getStatistics()
int	hashCode()
void	setError(AccuracyStatistics accuracyStatistics)
boolean	shouldSelectNewModel(int learnSize)

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ErrorChangeStrategy

public ErrorChangeStrategy(int percentageChange,
                           AutomaticForecaster.ErrorChangeStrategy.Statistics statistics)

Method Detail

shouldSelectNewModel

public boolean shouldSelectNewModel(int learnSize)

Specified by:

shouldSelectNewModel in class AutomaticForecaster.ConceptDriftStrategy

Parameters:

learnSize - size of dataSet from learn method

Returns:

true if model should be selected - concept drift is present

getPercentageChange

public int getPercentageChange()

getStatistics

public AutomaticForecaster.ErrorChangeStrategy.Statistics getStatistics()

setError

public void setError(AccuracyStatistics accuracyStatistics)

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object