de.viadee.discretizers4j.impl

Class MDLPDiscretizer

java.lang.Object

de.viadee.discretizers4j.AbstractDiscretizer

de.viadee.discretizers4j.AbstractSupervisedDiscretizer

de.viadee.discretizers4j.impl.MDLPDiscretizer

All Implemented Interfaces:

Discretizer, Serializable, Function<Serializable,Double>

public class MDLPDiscretizer
extends AbstractSupervisedDiscretizer

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
MDLPDiscretizer() Constructs the MDLP Discretizer, MDLP works without any Parameters.

Method Summary

Modifier and Type	Method and Description
protected List<DiscretizationTransition>	fitCreateTransitions(List<AbstractMap.SimpleImmutableEntry<Double,Double>> keyValuePairs) Implementation of MDLP, 1.

Methods inherited from class de.viadee.discretizers4j.AbstractSupervisedDiscretizer

equalClassSplit, fitCreateTransitions

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

MDLPDiscretizer

public MDLPDiscretizer()

Constructs the MDLP Discretizer, MDLP works without any Parameters.

Method Detail

fitCreateTransitions

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

Implementation of MDLP, 1. Sort all values. 2. Determine all useful cut points (useful if the class changes at this point) 3. Search for cut point which splits the values into the best "bi-partition". 4. Repeat [3] for each part until no improvement is possible (recursive)

Specified by:

fitCreateTransitions in class AbstractSupervisedDiscretizer

Parameters:

keyValuePairs - List of Values and Labels

Returns:

list of DiscretizationTransition determined to have the highest Ameva value