org.dllearner.algorithms.isle.metrics

Class RelevanceWeightedStableHeuristic

java.lang.Object

org.dllearner.algorithms.isle.metrics.RelevanceWeightedStableHeuristic

All Implemented Interfaces:

Comparator<SearchTreeNode>, ELHeuristic, Component, Heuristic<SearchTreeNode>

public class RelevanceWeightedStableHeuristic
extends Object
implements ELHeuristic

A stable comparator for search tree nodes. Stable means that the order of nodes will not change during the run of the learning algorithm. In this implementation, this is ensured by using only covered examples and tree size as criteria.

Author:

Jens Lehmann

Constructor Summary

Constructors

Constructor and Description
RelevanceWeightedStableHeuristic(org.semanticweb.owlapi.model.OWLClass classToDescribe, List<RelevanceMetric> relevanceMetrics)
RelevanceWeightedStableHeuristic(org.semanticweb.owlapi.model.OWLClass classToDescribe, RelevanceMetric... relevanceMetrics)
RelevanceWeightedStableHeuristic(org.semanticweb.owlapi.model.OWLClass classToDescribe, RelevanceWeightings weightings, List<RelevanceMetric> relevanceMetrics)
RelevanceWeightedStableHeuristic(org.semanticweb.owlapi.model.OWLClass classToDescribe, RelevanceWeightings weightings, RelevanceMetric... relevanceMetrics)

Method Summary

Modifier and Type	Method and Description
int	compare(SearchTreeNode o1, SearchTreeNode o2)
double	getNodeScore(SearchTreeNode node)
void	init() Method to be called after the component has been configured.
void	setClassToDescribe(org.semanticweb.owlapi.model.OWLClass classToDescribe)
void	setRelevanceMetrics(List<RelevanceMetric> relevanceMetrics)
void	setWeightings(RelevanceWeightings weightings)

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Comparator

comparing, comparing, comparingDouble, comparingInt, comparingLong, equals, naturalOrder, nullsFirst, nullsLast, reversed, reverseOrder, thenComparing, thenComparing, thenComparing, thenComparingDouble, thenComparingInt, thenComparingLong

Constructor Detail

RelevanceWeightedStableHeuristic

public RelevanceWeightedStableHeuristic(org.semanticweb.owlapi.model.OWLClass classToDescribe,
                                        RelevanceWeightings weightings,
                                        RelevanceMetric... relevanceMetrics)

RelevanceWeightedStableHeuristic

public RelevanceWeightedStableHeuristic(org.semanticweb.owlapi.model.OWLClass classToDescribe,
                                        RelevanceWeightings weightings,
                                        List<RelevanceMetric> relevanceMetrics)

RelevanceWeightedStableHeuristic

public RelevanceWeightedStableHeuristic(org.semanticweb.owlapi.model.OWLClass classToDescribe,
                                        RelevanceMetric... relevanceMetrics)

RelevanceWeightedStableHeuristic

public RelevanceWeightedStableHeuristic(org.semanticweb.owlapi.model.OWLClass classToDescribe,
                                        List<RelevanceMetric> relevanceMetrics)

Method Detail

setWeightings

public void setWeightings(RelevanceWeightings weightings)

Parameters:

weightings - the weightings to set

setRelevanceMetrics

public void setRelevanceMetrics(List<RelevanceMetric> relevanceMetrics)

Parameters:

relevanceMetrics - the relevanceMetrics to set

setClassToDescribe

public void setClassToDescribe(org.semanticweb.owlapi.model.OWLClass classToDescribe)

Parameters:

classToDescribe - the classToDescribe to set

getNodeScore

public double getNodeScore(SearchTreeNode node)

Specified by:

getNodeScore in interface Heuristic<SearchTreeNode>

compare

public int compare(SearchTreeNode o1,
                   SearchTreeNode o2)

Specified by:

compare in interface Comparator<SearchTreeNode>

init

public void init()
          throws ComponentInitException

Description copied from interface: Component

Method to be called after the component has been configured. Implementation of components can overwrite this method to perform setup and initialisation tasks for this component.

Specified by:

init in interface Component

Throws:

ComponentInitException - This exception is thrown if any exceptions occur within the initialisation process of this component. As component developer, you are encouraged to re-throw occurring exception as ComponentInitException and giving an error message as well as the actually exception by using the constructor ComponentInitException(String, Throwable).