org.dllearner.utilities.examples
Class AutomaticNegativeExampleFinderSPARQL2

java.lang.Object
  org.dllearner.utilities.examples.AutomaticNegativeExampleFinderSPARQL2

public class AutomaticNegativeExampleFinderSPARQL2
extends Object

Utility class for automatically retrieving negative examples from a SPARQL endpoint given a set of positive examples.

Author:

Jens Lehmann, Sebastian Hellmann

Constructor Summary

AutomaticNegativeExampleFinderSPARQL2(SparqlEndpoint se)

Method Summary

SortedSet<String>

getNegativeExamples(String classURI, SortedSet<String> positiveExamples) Get negative examples when learning the description of a class, i.e.

Methods inherited from class java.lang.Object

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

Constructor Detail

AutomaticNegativeExampleFinderSPARQL2

public AutomaticNegativeExampleFinderSPARQL2(SparqlEndpoint se)

Method Detail

getNegativeExamples

public SortedSet<String> getNegativeExamples(String classURI,
                                             SortedSet<String> positiveExamples)

Get negative examples when learning the description of a class, i.e. all positives are from some known class. Currently, the method implementation is preliminary and does not allow to configure internals.

Parameters:

classURI - The known class of all positive examples.

positiveExamples - The existing positive examples.