org.dllearner.algorithms.decisiontrees.refinementoperators

Class DLTreesRefinementOperator

java.lang.Object

org.dllearner.algorithms.decisiontrees.refinementoperators.DLTreesRefinementOperator

All Implemented Interfaces:

InstanceBasedRefinementOperator, Component, ReasoningBasedRefinementOperator, RefinementOperator

public class DLTreesRefinementOperator
extends Object
implements InstanceBasedRefinementOperator

The original refinement Operator proposed for inducing Terminological Decision Trees

Author:

Giuseppe Rizzo

Field Summary

Fields

Modifier and Type	Field and Description
static int	ORIGINAL
static int	PSI
static int	RHO

Constructor Summary

Constructors

Constructor and Description
DLTreesRefinementOperator()
DLTreesRefinementOperator(PosNegLP lp, AbstractReasonerComponent reasoner, int beam)

Method Summary

Modifier and Type	Method and Description
SortedSet<org.semanticweb.owlapi.model.OWLClassExpression>	generateNewConcepts(SortedSet<org.semanticweb.owlapi.model.OWLIndividual> posExs, SortedSet<org.semanticweb.owlapi.model.OWLIndividual> negExs, boolean seed)
ArrayList<org.semanticweb.owlapi.model.OWLClass>	getAllConcepts()
ArrayList<org.semanticweb.owlapi.model.OWLObjectProperty>	getAllRoles()
int	getBeam()
PosNegLP	getLp()
org.semanticweb.owlapi.model.OWLClassExpression	getRandomConcept() Random concept generation
int	getRo()
void	init() Method to be called after the component has been configured.
Set<org.semanticweb.owlapi.model.OWLClassExpression>	refine(org.semanticweb.owlapi.model.OWLClassExpression description) Standard refinement operation.
Set<org.semanticweb.owlapi.model.OWLClassExpression>	refine(org.semanticweb.owlapi.model.OWLClassExpression definition, SortedSet<org.semanticweb.owlapi.model.OWLIndividual> posExs, SortedSet<org.semanticweb.owlapi.model.OWLIndividual> negExs)
void	setAllConcepts(ArrayList<org.semanticweb.owlapi.model.OWLClass> allConcepts)
void	setAllRoles(ArrayList<org.semanticweb.owlapi.model.OWLObjectProperty> allRoles)
void	setBeam(int i)
void	setLp(PosNegLP lp)
void	setReasoner(AbstractReasonerComponent reasoner)
void	setReasoner(Reasoner reasoner)
void	setRo(int ro)

Methods inherited from class java.lang.Object

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

Field Detail

ORIGINAL

public static final int ORIGINAL

See Also:

Constant Field Values

RHO

public static final int RHO

See Also:

Constant Field Values

PSI

public static final int PSI

See Also:

Constant Field Values

Constructor Detail

DLTreesRefinementOperator

public DLTreesRefinementOperator()

DLTreesRefinementOperator

public DLTreesRefinementOperator(PosNegLP lp,
                                 AbstractReasonerComponent reasoner,
                                 int beam)

Method Detail

getRo

public int getRo()

setRo

public void setRo(int ro)

getLp

public PosNegLP getLp()

setLp

public void setLp(PosNegLP lp)

getAllConcepts

public ArrayList<org.semanticweb.owlapi.model.OWLClass> getAllConcepts()

setAllConcepts

public void setAllConcepts(ArrayList<org.semanticweb.owlapi.model.OWLClass> allConcepts)

getAllRoles

public ArrayList<org.semanticweb.owlapi.model.OWLObjectProperty> getAllRoles()

setAllRoles

public void setAllRoles(ArrayList<org.semanticweb.owlapi.model.OWLObjectProperty> allRoles)

getRandomConcept

public org.semanticweb.owlapi.model.OWLClassExpression getRandomConcept()

Random concept generation

Returns:

generateNewConcepts

public SortedSet<org.semanticweb.owlapi.model.OWLClassExpression> generateNewConcepts(SortedSet<org.semanticweb.owlapi.model.OWLIndividual> posExs,
                                                                                      SortedSet<org.semanticweb.owlapi.model.OWLIndividual> negExs,
                                                                                      boolean seed)

refine

public Set<org.semanticweb.owlapi.model.OWLClassExpression> refine(org.semanticweb.owlapi.model.OWLClassExpression description)

Description copied from interface: RefinementOperator

Standard refinement operation.

Specified by:

refine in interface RefinementOperator

Parameters:

description - The description, which will be refined.

Returns:

A set of refinements.

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).

setReasoner

public void setReasoner(AbstractReasonerComponent reasoner)

setReasoner

public void setReasoner(Reasoner reasoner)

Specified by:

setReasoner in interface ReasoningBasedRefinementOperator

refine

public Set<org.semanticweb.owlapi.model.OWLClassExpression> refine(org.semanticweb.owlapi.model.OWLClassExpression definition,
                                                                   SortedSet<org.semanticweb.owlapi.model.OWLIndividual> posExs,
                                                                   SortedSet<org.semanticweb.owlapi.model.OWLIndividual> negExs)

Specified by:

refine in interface InstanceBasedRefinementOperator

setBeam

public void setBeam(int i)

getBeam

public int getBeam()