如何利用隐士推理器检查ABOX一致性

Question

我试图学习如何正确地使用OWLAPI，但我遇到了一些麻烦：我有一个本体来构造活动（例如个人和社会活动）；我的目标是创建一个简单的不一致性示例，以便使用这个API：我想声明足球是一个单独的活动。IndividualActivity在Protegé中定义为等效于（Activity和（hasActor正好为1人）)。

/// PIECE OF CODE ///

    OWLDataFactory df = Singleton_Ontologia.getFactory();

    IRI soccerIRI=IRI.create(Singleton_Ontologia.getIribase(),"Soccer");
    IRI paoloIRI = IRI.create(Singleton_Ontologia.getIribase(),"Paolo");
    IRI marcoIRI = IRI.create(Singleton_Ontologia.getIribase(),"Marco");

    OWLNamedIndividual soccer = df.getOWLNamedIndividual(soccerIRI);
    OWLNamedIndividual paolo = df.getOWLNamedIndividual(paoloIRI);
    OWLNamedIndividual marco = df.getOWLNamedIndividual(marcoIRI);

    OWLClass person = df.getOWLClass(
            IRI.create(Singleton_Ontologia.getIribase()+"Person"));

    OWLClass individual_activity = df.getOWLClass(
            IRI.create(Singleton_Ontologia.getIribase()+"IndividualActivity"));

    OWLObjectProperty hasActor = df.getOWLObjectProperty(
            IRI.create(Singleton_Ontologia.getIribase()+"hasActor"));

    OWLClassAssertionAxiom assertionAxiom = df.getOWLClassAssertionAxiom(individual_activity, soccer);
    OWLClassAssertionAxiom assertionAxiom2 = df.getOWLClassAssertionAxiom(person, paolo);
    OWLClassAssertionAxiom assertionAxiom3 = df.getOWLClassAssertionAxiom(person, marco);
    OWLObjectPropertyAssertionAxiom assertionAxiom4 = df.getOWLObjectPropertyAssertionAxiom(hasActor, soccer, paolo);
    OWLObjectPropertyAssertionAxiom assertionAxiom5 = df.getOWLObjectPropertyAssertionAxiom(hasActor, soccer, marco);

    Singleton_Ontologia.getManager().addAxiom(ontologiaattuale,assertionAxiom);
    Singleton_Ontologia.getManager().addAxiom(ontologiaattuale,assertionAxiom2);
    Singleton_Ontologia.getManager().addAxiom(ontologiaattuale,assertionAxiom3);
    Singleton_Ontologia.getManager().addAxiom(ontologiaattuale,assertionAxiom4);
    Singleton_Ontologia.getManager().addAxiom(ontologiaattuale,assertionAxiom5);

/// CONSISTENCY CHECK ///

System.out.println("Consistency:"+Singleton_Ontologia.getReasoner().isConsistent());

下面是Hermit Reasoner的配置：

public static void configReasoner() {
    iribase = "http://webmind.dico.unimi.it/CARE/locont.owl#";
    Configuration config=new Configuration();
    config.ignoreUnsupportedDatatypes=true; 
    factory = manager.getOWLDataFactory();
    reasonerFactory = new ReasonerFactory();
    reasoner = reasonerFactory.createReasoner(ont,config);
}

我创建个人Paolo和Marco是为了创建一个以上的Person作为Soccer的Actors，但是isconsistence()方法仍然返回true，而我需要一个false值。另外，我打印了ABOX内容：

___________ABOX___________


/////////////////////// OBJECT number 1 ///////////////////////
ClassAssertion(<http://webmind.dico.unimi.it/CARE/locont.owl#IndividualActivity> <http://webmind.dico.unimi.it/CARE/locont.owl#Soccer>)

/////////////////////// OBJECT number 2 ///////////////////////
ClassAssertion(<http://webmind.dico.unimi.it/CARE/locont.owl#Person> <http://webmind.dico.unimi.it/CARE/locont.owl#Paolo>)

/////////////////////// OBJECT number 3 ///////////////////////
ObjectPropertyAssertion(<http://webmind.dico.unimi.it/CARE/locont.owl#hasActor> <http://webmind.dico.unimi.it/CARE/locont.owl#Soccer> <http://webmind.dico.unimi.it/CARE/locont.owl#Paolo>)

/////////////////////// OBJECT number 4 ///////////////////////
ObjectPropertyAssertion(<http://webmind.dico.unimi.it/CARE/locont.owl#hasActor > <http://webmind.dico.unimi.it/CARE/locont.owl#Soccer> <http://webmind.dico.unimi.it/CARE/locont.owl#Marco>)

/////////////////////// OBJECT number 5 ///////////////////////
ClassAssertion(<http://webmind.dico.unimi.it/CARE/locont.owl#Person> <http://webmind.dico.unimi.it/CARE/locont.owl#Marco>)

___________END_ABOX___________

老实说，我不明白我的错误在哪里，谁能帮助我吗？

Answer 1

你需要指定马可和保罗是不同的个体。没有这个公理，没有什么可以阻止它们成为同一个，并保持本体论的一致性。