org.dllearner.kb.sparql

Class ClassBasedSampleGenerator

java.lang.Object

org.dllearner.kb.sparql.AbstractSampleGenerator

org.dllearner.kb.sparql.InstanceBasedSampleGenerator

org.dllearner.kb.sparql.ClassBasedSampleGenerator

public class ClassBasedSampleGenerator
extends InstanceBasedSampleGenerator

Computes a sample fragment of the knowledge base given an OWL class.

Author:

Lorenz Buehmann

Field Summary

Fields inherited from class org.dllearner.kb.sparql.AbstractSampleGenerator

qef, reasoner

Constructor Summary

Constructors

Constructor and Description
ClassBasedSampleGenerator(SparqlEndpointKS ks)

Method Summary

Modifier and Type	Method and Description
Set<org.semanticweb.owlapi.model.OWLIndividual>	getNegativeExamples()
Set<org.semanticweb.owlapi.model.OWLIndividual>	getPositiveExamples()
org.semanticweb.owlapi.model.OWLOntology	getSample(org.semanticweb.owlapi.model.OWLClass cls) Computes a sample fragment of the knowledge base by using instances of the given OWL class and also, if enabled, use some instances that do not belong to the class.
void	setUseNegExamples(boolean useNegExamples)

Methods inherited from class org.dllearner.kb.sparql.AbstractSampleGenerator

addAllowedObjectNamespaces, addAllowedPropertyNamespaces, addIgnoredProperties, getSample, getSampleDepth, getSampleModel, setLoadRelatedSchema, setSampleDepth

Methods inherited from class java.lang.Object

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

Constructor Detail

ClassBasedSampleGenerator

public ClassBasedSampleGenerator(SparqlEndpointKS ks)

Method Detail

getSample

public org.semanticweb.owlapi.model.OWLOntology getSample(org.semanticweb.owlapi.model.OWLClass cls)

Computes a sample fragment of the knowledge base by using instances of the given OWL class and also, if enabled, use some instances that do not belong to the class.

Parameters:

cls - the OWL class

Returns:

a sample fragment

setUseNegExamples

public void setUseNegExamples(boolean useNegExamples)

Parameters:

useNegExamples - whether to use negative examples or not

getPositiveExamples

public Set<org.semanticweb.owlapi.model.OWLIndividual> getPositiveExamples()

Returns:

the positive examples, i.e. instances of the class, used to generate the sample

getNegativeExamples

public Set<org.semanticweb.owlapi.model.OWLIndividual> getNegativeExamples()

Returns:

the negative examples, i.e. individuals that do not belong to the class, used to generate the sample