org.dllearner.kb.sparql
Class SparqlQueryDescriptionConvertRDFS

java.lang.Object
  org.dllearner.kb.sparql.SparqlQueryDescriptionConvertRDFS

public class SparqlQueryDescriptionConvertRDFS
extends Object

Author:

Sebastian Hellmann Enables RDFS reasoning for the DL2SPARQL class by concept rewriting

Constructor Summary

SparqlQueryDescriptionConvertRDFS()

Method Summary

static String

conceptRewrite(String descriptionKBSyntax, SPARQLTasks st, int maxDepth) replaces each String representing a concept in descriptionKBSyntax with a union of the subclasses ex: (c sub b); (b sub a ) then: (a AND b) will be ((a OR b OR c) AND (b OR a))

Methods inherited from class java.lang.Object

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

Constructor Detail

SparqlQueryDescriptionConvertRDFS

public SparqlQueryDescriptionConvertRDFS()

Method Detail

conceptRewrite

public static String conceptRewrite(String descriptionKBSyntax,
                                    SPARQLTasks st,
                                    int maxDepth)

replaces each String representing a concept in descriptionKBSyntax with a union of the subclasses ex: (c sub b); (b sub a ) then: (a AND b) will be ((a OR b OR c) AND (b OR a))

Parameters:

descriptionKBSyntax -

maxDepth - determines the depth of retrieval, if 1 classes are replaced by direct subclasses only, 1 is HIGHLY RECOMMENDED FOR LARGE HIERARCHIES)

Returns:

the altered String