de.viadee.discretizers4j

Class AbstractSupervisedDiscretizer

java.lang.Object

de.viadee.discretizers4j.AbstractDiscretizer

de.viadee.discretizers4j.AbstractSupervisedDiscretizer

All Implemented Interfaces:

Discretizer, Serializable, Function<Serializable,Double>

Direct Known Subclasses:

AmevaDiscretizer, FUSINTERDiscretizer, MDLPDiscretizer

public abstract class AbstractSupervisedDiscretizer
extends AbstractDiscretizer

See Also:

Serialized Form

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	AbstractSupervisedDiscretizer(boolean isSupervised) Constructs the instance

Method Summary

Modifier and Type	Method and Description
protected List<Interval>	equalClassSplit(List<AbstractMap.SimpleImmutableEntry<Double,Double>> keyValuePairs) generates initial Intervals.
protected abstract List<DiscretizationTransition>	fitCreateTransitions(List<AbstractMap.SimpleImmutableEntry<Double,Double>> keyValuePairs) Fits on the data
protected List<DiscretizationTransition>	fitCreateTransitions(Serializable[] values, Double[] labels) Fits on the data

Methods inherited from class de.viadee.discretizers4j.AbstractDiscretizer

apply, fit, fit, getDiscretizationTransitionsFromCutPoints, getTransitions

Methods inherited from class java.lang.Object

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

Methods inherited from interface de.viadee.discretizers4j.Discretizer

apply, getTransition

Methods inherited from interface java.util.function.Function

andThen, compose, identity

Constructor Detail

AbstractSupervisedDiscretizer

protected AbstractSupervisedDiscretizer(boolean isSupervised)

Constructs the instance

Parameters:

isSupervised - true, if this is a supervised discretizer

Method Detail

equalClassSplit

protected List<Interval> equalClassSplit(List<AbstractMap.SimpleImmutableEntry<Double,Double>> keyValuePairs)

generates initial Intervals. Values with same class are merged to a Interval. If a value has several classes, all index with this value will be a separate Interval.

Parameters:

keyValuePairs, - Array of Attribute Class.

Returns:

initial List of Intervals

fitCreateTransitions

protected final List<DiscretizationTransition> fitCreateTransitions(Serializable[] values,
                                                                    Double[] labels)

Description copied from class: AbstractDiscretizer

Fits on the data

Specified by:

fitCreateTransitions in class AbstractDiscretizer

Parameters:

values - the values to be fitted on

labels - the labels. != null, iff supervised

Returns:

a Collection containing the DiscretizationTransitions

fitCreateTransitions

protected abstract List<DiscretizationTransition> fitCreateTransitions(List<AbstractMap.SimpleImmutableEntry<Double,Double>> keyValuePairs)

Fits on the data

Parameters:

keyValuePairs - the values and labels to be fitted

Returns:

a Collection containing the DiscretizationTransitions