org.dllearner.algorithms.decisiontrees.heuristics

Class TreeInductionHeuristics

java.lang.Object

org.dllearner.algorithms.decisiontrees.heuristics.TreeInductionHeuristics

public class TreeInductionHeuristics
extends Object

Field Summary

Fields

Modifier and Type	Field and Description
protected static int	NEGATIVE_INSTANCE_CHECK_FALSE
protected static int	NEGATIVE_INSTANCE_CHECK_TRUE
protected static int	NEGATIVE_INSTANCE_CHECK_UNC
protected static int	POSITIVE_INSTANCE_CHECK_FALSE
protected static int	POSITIVE_INSTANCE_CHECK_TRUE
protected static int	POSITIVE_INSTANCE_CHECK_UNC
protected static int	UNCERTAIN_INSTANCE_CHECK_FALSE
protected static int	UNCERTAIN_INSTANCE_CHECK_TRUE
protected static int	UNCERTAIN_INSTANCE_CHECK_UNC

Constructor Summary

Constructors

Constructor and Description
TreeInductionHeuristics()

Method Summary

Modifier and Type	Method and Description
AbstractClassExpressionLearningProblem	getProblem()
AbstractReasonerComponent	getReasoner()
void	init()
org.semanticweb.owlapi.model.OWLClassExpression	selectBestConcept(org.semanticweb.owlapi.model.OWLClassExpression[] concepts, SortedSet<org.semanticweb.owlapi.model.OWLIndividual> posExs, SortedSet<org.semanticweb.owlapi.model.OWLIndividual> negExs, SortedSet<org.semanticweb.owlapi.model.OWLIndividual> undExs, double prPos, double prNeg)
org.semanticweb.owlapi.model.OWLClassExpression	selectBestConceptCCP(org.semanticweb.owlapi.model.OWLClassExpression[] concepts, SortedSet<org.semanticweb.owlapi.model.OWLIndividual> posExs, SortedSet<org.semanticweb.owlapi.model.OWLIndividual> negExs, SortedSet<org.semanticweb.owlapi.model.OWLIndividual> undExs, double prPos, double prNeg)
Couple<org.semanticweb.owlapi.model.OWLClassExpression,MassFunction>	selectBestConceptDST(org.semanticweb.owlapi.model.OWLClassExpression[] concepts, SortedSet<org.semanticweb.owlapi.model.OWLIndividual> posExs, SortedSet<org.semanticweb.owlapi.model.OWLIndividual> negExs, SortedSet<org.semanticweb.owlapi.model.OWLIndividual> undExs, double prPos, double prNeg) Returns the best pair with the lowest non specificity measure.
org.semanticweb.owlapi.model.OWLClassExpression	selectWorstConcept(org.semanticweb.owlapi.model.OWLClassExpression[] concepts, SortedSet<org.semanticweb.owlapi.model.OWLIndividual> posExs, SortedSet<org.semanticweb.owlapi.model.OWLIndividual> negExs, SortedSet<org.semanticweb.owlapi.model.OWLIndividual> undExs, double perPos, double perNeg) Selct the worst concept in terms of information gain.
Couple<org.semanticweb.owlapi.model.OWLClassExpression,MassFunction>	selectWorstConceptDST(org.semanticweb.owlapi.model.OWLClassExpression[] concepts, SortedSet<org.semanticweb.owlapi.model.OWLIndividual> posExs, SortedSet<org.semanticweb.owlapi.model.OWLIndividual> negExs, SortedSet<org.semanticweb.owlapi.model.OWLIndividual> undExs, double prPos, double prNeg) A method which select the worst pair in terms of non-specificity measure.
void	setProblem(AbstractClassExpressionLearningProblem problem)
void	setProblem(PosNegUndLP problem)
void	setReasoner(AbstractReasonerComponent reasoner)
protected void	split(org.semanticweb.owlapi.model.OWLClassExpression concept, SortedSet<org.semanticweb.owlapi.model.OWLIndividual> posExs, SortedSet<org.semanticweb.owlapi.model.OWLIndividual> negExs, SortedSet<org.semanticweb.owlapi.model.OWLIndividual> undExs, SortedSet<org.semanticweb.owlapi.model.OWLIndividual> posExsT, SortedSet<org.semanticweb.owlapi.model.OWLIndividual> negExsT, SortedSet<org.semanticweb.owlapi.model.OWLIndividual> undExsT, SortedSet<org.semanticweb.owlapi.model.OWLIndividual> posExsF, SortedSet<org.semanticweb.owlapi.model.OWLIndividual> negExsF, SortedSet<org.semanticweb.owlapi.model.OWLIndividual> undExsF)

Methods inherited from class java.lang.Object

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

Field Detail

UNCERTAIN_INSTANCE_CHECK_UNC

protected static final int UNCERTAIN_INSTANCE_CHECK_UNC

See Also:

Constant Field Values

NEGATIVE_INSTANCE_CHECK_UNC

protected static final int NEGATIVE_INSTANCE_CHECK_UNC

See Also:

Constant Field Values

POSITIVE_INSTANCE_CHECK_UNC

protected static final int POSITIVE_INSTANCE_CHECK_UNC

See Also:

Constant Field Values

UNCERTAIN_INSTANCE_CHECK_FALSE

protected static final int UNCERTAIN_INSTANCE_CHECK_FALSE

See Also:

Constant Field Values

NEGATIVE_INSTANCE_CHECK_FALSE

protected static final int NEGATIVE_INSTANCE_CHECK_FALSE

See Also:

Constant Field Values

POSITIVE_INSTANCE_CHECK_FALSE

protected static final int POSITIVE_INSTANCE_CHECK_FALSE

See Also:

Constant Field Values

UNCERTAIN_INSTANCE_CHECK_TRUE

protected static final int UNCERTAIN_INSTANCE_CHECK_TRUE

See Also:

Constant Field Values

NEGATIVE_INSTANCE_CHECK_TRUE

protected static final int NEGATIVE_INSTANCE_CHECK_TRUE

See Also:

Constant Field Values

POSITIVE_INSTANCE_CHECK_TRUE

protected static final int POSITIVE_INSTANCE_CHECK_TRUE

See Also:

Constant Field Values

Constructor Detail

TreeInductionHeuristics

public TreeInductionHeuristics()

Method Detail

getProblem

public AbstractClassExpressionLearningProblem getProblem()

setProblem

public void setProblem(AbstractClassExpressionLearningProblem problem)

getReasoner

public AbstractReasonerComponent getReasoner()

setReasoner

public void setReasoner(AbstractReasonerComponent reasoner)

setProblem

public void setProblem(PosNegUndLP problem)

init

public void init()

selectBestConcept

public org.semanticweb.owlapi.model.OWLClassExpression selectBestConcept(org.semanticweb.owlapi.model.OWLClassExpression[] concepts,
                                                                         SortedSet<org.semanticweb.owlapi.model.OWLIndividual> posExs,
                                                                         SortedSet<org.semanticweb.owlapi.model.OWLIndividual> negExs,
                                                                         SortedSet<org.semanticweb.owlapi.model.OWLIndividual> undExs,
                                                                         double prPos,
                                                                         double prNeg)

selectBestConceptCCP

public org.semanticweb.owlapi.model.OWLClassExpression selectBestConceptCCP(org.semanticweb.owlapi.model.OWLClassExpression[] concepts,
                                                                            SortedSet<org.semanticweb.owlapi.model.OWLIndividual> posExs,
                                                                            SortedSet<org.semanticweb.owlapi.model.OWLIndividual> negExs,
                                                                            SortedSet<org.semanticweb.owlapi.model.OWLIndividual> undExs,
                                                                            double prPos,
                                                                            double prNeg)

split

protected void split(org.semanticweb.owlapi.model.OWLClassExpression concept,
                     SortedSet<org.semanticweb.owlapi.model.OWLIndividual> posExs,
                     SortedSet<org.semanticweb.owlapi.model.OWLIndividual> negExs,
                     SortedSet<org.semanticweb.owlapi.model.OWLIndividual> undExs,
                     SortedSet<org.semanticweb.owlapi.model.OWLIndividual> posExsT,
                     SortedSet<org.semanticweb.owlapi.model.OWLIndividual> negExsT,
                     SortedSet<org.semanticweb.owlapi.model.OWLIndividual> undExsT,
                     SortedSet<org.semanticweb.owlapi.model.OWLIndividual> posExsF,
                     SortedSet<org.semanticweb.owlapi.model.OWLIndividual> negExsF,
                     SortedSet<org.semanticweb.owlapi.model.OWLIndividual> undExsF)

selectBestConceptDST

public Couple<org.semanticweb.owlapi.model.OWLClassExpression,MassFunction> selectBestConceptDST(org.semanticweb.owlapi.model.OWLClassExpression[] concepts,
                                                                                                 SortedSet<org.semanticweb.owlapi.model.OWLIndividual> posExs,
                                                                                                 SortedSet<org.semanticweb.owlapi.model.OWLIndividual> negExs,
                                                                                                 SortedSet<org.semanticweb.owlapi.model.OWLIndividual> undExs,
                                                                                                 double prPos,
                                                                                                 double prNeg)

Returns the best pair with the lowest non specificity measure. To be used with the original refinement operator for DL

Parameters:

concepts -

posExs -

negExs -

undExs -

prPos -

prNeg -

Returns:

selectWorstConceptDST

public Couple<org.semanticweb.owlapi.model.OWLClassExpression,MassFunction> selectWorstConceptDST(org.semanticweb.owlapi.model.OWLClassExpression[] concepts,
                                                                                                  SortedSet<org.semanticweb.owlapi.model.OWLIndividual> posExs,
                                                                                                  SortedSet<org.semanticweb.owlapi.model.OWLIndividual> negExs,
                                                                                                  SortedSet<org.semanticweb.owlapi.model.OWLIndividual> undExs,
                                                                                                  double prPos,
                                                                                                  double prNeg)

A method which select the worst pair in terms of non-specificity measure. To be used jointly with the original refinement operators of DL-LEarner

Parameters:

concepts -

posExs -

negExs -

undExs -

prPos -

prNeg -

Returns:

selectWorstConcept

public org.semanticweb.owlapi.model.OWLClassExpression selectWorstConcept(org.semanticweb.owlapi.model.OWLClassExpression[] concepts,
                                                                          SortedSet<org.semanticweb.owlapi.model.OWLIndividual> posExs,
                                                                          SortedSet<org.semanticweb.owlapi.model.OWLIndividual> negExs,
                                                                          SortedSet<org.semanticweb.owlapi.model.OWLIndividual> undExs,
                                                                          double perPos,
                                                                          double perNeg)

Selct the worst concept in terms of information gain. To be used jointly with

Parameters:

concepts -

posExs -

negExs -

undExs -

perPos -

perNeg -

Returns: