속성 값 가져 오기 OWL API를 사용하는 온톨로지에서 두 객체의 교차점

Question

OWL API를 처음 사용하여 실험을 시도했습니다. OWL API를 사용하여 Eclipse에서 protge 및 상호 응용 프로그램에 간단한 온톨로지를 만들었습니다. 다음과 같이 온톨로지 구조는 다음과 같습니다 - 다음과 같이

---------------------------------------------------------------------------------------- 
Class    Object  (Data Property)StringValue ObjectProperty relatedTo  
---------------------------------------------------------------------------------------- 
WordString    WS1     "One"     DS1 
         WS2     "Two"     DS2 
         WS3     "Three"     DS3 

DigiString    DS1     "1" 
         DS2     "2" 
         DS3     "3" 
---------------------------------------------------------------------------- 

전체 온톨로지는 다음과 같습니다 -

<rdf:RDF xmlns="http://localhost:3030/DigiWord.owl#" 
xml:base="http://localhost:3030/DigiWord.owl" 
xmlns:DigiWord="http://localhost:3030/DigiWord.owl#" 
xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#" 
xmlns:owl="http://www.w3.org/2002/07/owl#" 
xmlns:xsd="http://www.w3.org/2001/XMLSchema#" 
xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"> 
<owl:Ontology rdf:about="http://localhost:3030/DigiWord.owl"/> 
<!-- 
// Object Properties 
/////////////////////////////////////////////////////////////////////////////////////// 
--> 
<!-- http://localhost:3030/DigiWord.owl#relatedTo --> 
<owl:ObjectProperty rdf:about="&DigiWord;relatedTo"> 
    <rdfs:domain rdf:resource="&DigiWord;DigiString"/> 
    <rdfs:range rdf:resource="&DigiWord;WordString"/> 
</owl:ObjectProperty> 
<!-- 
// 
// Data properties 
/////////////////////////////////////////////////////////////////////////////////////// 
--> 
<!-- http://localhost:3030/DigiWord.owl#stringValue --> 

<owl:DatatypeProperty rdf:about="&DigiWord;stringValue"> 
    <rdfs:domain rdf:resource="&DigiWord;DigiString"/> 
    <rdfs:domain rdf:resource="&DigiWord;WordString"/> 
    <rdfs:range rdf:resource="&xsd;string"/> 
</owl:DatatypeProperty> 
<!-- 
// Classes 
/////////////////////////////////////////////////////////////////////////////////////// 
--> 
<!-- http://localhost:3030/DigiWord.owl#DigiString --> 
<owl:Class rdf:about="&DigiWord;DigiString"/> 
<!-- http://localhost:3030/DigiWord.owl#WordString --> 
<owl:Class rdf:about="&DigiWord;WordString"/> 
<!-- 
// Individuals 
/////////////////////////////////////////////////////////////////////////////////////// 
--> 
<!-- http://localhost:3030/DigiWord.owl#DS1 --> 
<owl:NamedIndividual rdf:about="&DigiWord;DS1"> 
    <rdf:type rdf:resource="&DigiWord;DigiString"/> 
    <stringValue rdf:datatype="&xsd;string">1</stringValue> 
    <relatedTo rdf:resource="&DigiWord;WS1"/> 
</owl:NamedIndividual> 
<!-- http://localhost:3030/DigiWord.owl#DS2 --> 
<owl:NamedIndividual rdf:about="&DigiWord;DS2"> 
    <rdf:type rdf:resource="&DigiWord;DigiString"/> 
    <stringValue rdf:datatype="&xsd;string">2</stringValue> 
    <relatedTo rdf:resource="&DigiWord;WS2"/> 
</owl:NamedIndividual> 
<!-- http://localhost:3030/DigiWord.owl#DS3 --> 
<owl:NamedIndividual rdf:about="&DigiWord;DS3"> 
    <rdf:type rdf:resource="&DigiWord;DigiString"/> 
    <stringValue rdf:datatype="&xsd;string"></stringValue> 
    <relatedTo rdf:resource="&DigiWord;WS3"/> 
</owl:NamedIndividual> 
<!-- http://localhost:3030/DigiWord.owl#WS1 --> 
<owl:NamedIndividual rdf:about="&DigiWord;WS1"> 
    <rdf:type rdf:resource="&DigiWord;WordString"/> 
    <stringValue rdf:datatype="&xsd;string">One</stringValue> 
</owl:NamedIndividual> 
<!-- http://localhost:3030/DigiWord.owl#WS2 --> 
<owl:NamedIndividual rdf:about="&DigiWord;WS2"> 
    <rdf:type rdf:resource="&DigiWord;WordString"/> 
    <stringValue rdf:datatype="&xsd;string">Two</stringValue> 
</owl:NamedIndividual> 
<!-- http://localhost:3030/DigiWord.owl#WS3 --> 
<owl:NamedIndividual rdf:about="&DigiWord;WS3"> 
    <rdf:type rdf:resource="&DigiWord;WordString"/> 
    <stringValue rdf:datatype="&xsd;string">Three</stringValue> 
</owl:NamedIndividual> 
</rdf:RDF> 

내가 문자열 "1"제공에 DS2 예에 대한 DS1, WS2에 대한 개체 WS1를 검색하고 싶다 "2 "등 내 코드는 각각"One ","Two "를 검색해야합니다. net에서 어떤 유형의 관련 코드도 발견하지 못했습니다. 모든 도움을 주시면 감사하겠습니다. 미리 감사드립니다.

Answer 1

다음의 예 (OWLAPI 4) 도움이 될 것입니다

OWLOntology o = ... your ontology here 
    String ns = "http://localhost:3030/DigiWord.owl#"; 
    OWLDataFactory df = o.getOWLOntologyManager().getOWLDataFactory(); 
    OWLObjectProperty relatedto = df.getOWLObjectProperty(IRI.create(ns + "relatedTo")); 
    OWLDataProperty stringValue = df.getOWLDataProperty(IRI.create(ns + "stringValue")); 
    SimpleRenderer renderer = new SimpleRenderer(); 
    for (OWLNamedIndividual i : o.getIndividualsInSignature()) { 
     for (OWLLiteral lit : EntitySearcher.getDataPropertyValues(i, stringValue, o)) { 
      System.out.println(i + " has values " + renderer.render(lit)); 
     } 
     for (OWLIndividual related : EntitySearcher.getObjectPropertyValues(i, relatedto, o)) { 
      for (OWLLiteral lit : EntitySearcher.getDataPropertyValues(related, stringValue, o)) { 
       System.out.println(i + " related to " + related + " which has values " + renderer.render(lit)); 
      } 
     } 
    } 

편집 : 조회에 일치하는 항목을 찾을 :

for (OWLNamedIndividual i : o.getIndividualsInSignature()) { 
     for (OWLIndividual related : EntitySearcher.getObjectPropertyValues(i, relatedto, o)) { 
      for (OWLLiteral lit : EntitySearcher.getDataPropertyValues(related, stringValue, o)) { 
       if(lit.getLexicalForm().equals("1")){ 
        for (OWLLiteral lit : EntitySearcher.getDataPropertyValues(i, stringValue, o)) { 
         System.out.println(i + " has values " + renderer.render(lit)); 
        } 
       } 
      } 
     } 
    }