Package org.aksw.qa.annotation.sparql

Class SimpleQuantityRanker

java.lang.Object

org.aksw.qa.annotation.sparql.SimpleQuantityRanker

public class SimpleQuantityRanker
extends Object

Field Summary

Fields

Modifier and Type	Field	Description
private static String	DBPEDIA_ONTO_URI
private org.aksw.qa.commons.sparql.SPARQL	sparql

Constructor Summary

Constructors

Constructor	Description
SimpleQuantityRanker()

Method Summary

Modifier and Type	Method	Description
private String	constructQuery(String uri)
boolean	disambiguateOntologyIsClass(String uri)	Checks if String is a class.
boolean	disambiguateOntologyIsProperty(String uri)	Checks if String is a property.
String	rank(Collection<String> uris)	For property, counts how many relations with this property exist.

Methods inherited from class java.lang.Object

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

Field Details

sparql

private org.aksw.qa.commons.sparql.SPARQL sparql

DBPEDIA_ONTO_URI

private static final String DBPEDIA_ONTO_URI

See Also:

Constant Field Values

Constructor Details

SimpleQuantityRanker

public SimpleQuantityRanker()

Method Details

rank

public String rank(Collection<String> uris)

For property, counts how many relations with this property exist. The one with the most relations is returned. For classes, counts how many subtypes of this class are existing. the one with the most subtypes is returned. If properties and classes are among the uris, the one with the biggest count is returned.

Parameters:

uris -

Returns:

constructQuery

private String constructQuery(String uri)

disambiguateOntologyIsProperty

public boolean disambiguateOntologyIsProperty(String uri)

Checks if String is a property. Checks if string begins with: "http://dbpedia.org/ontology/" , if following character is lowercase, its a property. Only works for dbpedia.

Parameters:

uri - String to check.

Returns:

true if string is a property within dbpedia.

disambiguateOntologyIsClass

public boolean disambiguateOntologyIsClass(String uri)

Checks if String is a class. Checks if string begins with: "http://dbpedia.org/ontology/" , if following character is uppercase, its a class. Only works for dbpedia.

Parameters:

uri - String to check.

Returns:

true if string is a property within dbpedia.