我正在使用owlapi和java开发我的本体,但在这种情况下我无法找到解决方案:
这里我有一个类结构,例如:
我为这些类创建了与其类同名的人。由于电子类有一个名为电子产品的个人。
分类:电子产品
相当于:关键字{" electronics"} 。
分类:方便
Dataproperty:关键字
数据属性值:"方便" ,类型:字符串
我使用隐士搜索个人关键字{" electronics"," handy"} 。
我把正确的人当作电子设备并且方便。
当我想在我的Java代码中列出个人的dataproperty 关键字值时,我无法获得电子设备的关键字值。 结果如下:
如何获取电子类的数据表值,以及如何计算匹配的关键字。
我想将查询结果显示为:
谢谢。
这是我的本体论:
<?xml version="1.0" encoding="UTF-8"?>
<Ontology xml:base="http://www.semanticweb.org/2015/ipek_ontology" ontologyIRI="http://www.semanticweb.org/2015/ipek_ontology">
<Prefix name="" IRI="http://www.w3.org/2002/07/owl#"/>
<Prefix name="owl" IRI="http://www.w3.org/2002/07/owl#"/>
<Prefix name="rdf" IRI="http://www.w3.org/1999/02/22-rdf-syntax-ns#"/>
<Prefix name="xsd" IRI="http://www.w3.org/2001/XMLSchema#"/>
<Prefix name="rdfs" IRI="http://www.w3.org/2000/01/rdf-schema#"/>
<Declaration>
<Class IRI="#Electronics"/>
</Declaration>
<Declaration>
<Class IRI="#Handy"/>
</Declaration>
<Declaration>
<Class IRI="#Radio"/>
</Declaration>
<Declaration>
<DataProperty IRI="#GTIP_number"/>
</Declaration>
<Declaration>
<DataProperty IRI="#Keyword"/>
</Declaration>
<Declaration>
<NamedIndividual IRI="#Electronics"/>
</Declaration>
<Declaration>
<NamedIndividual IRI="#handy"/>
</Declaration>
<Declaration>
<NamedIndividual IRI="#radio"/>
</Declaration>
<EquivalentClasses>
<Class IRI="#Electronics"/>
<DataHasValue>
<DataProperty IRI="#Keyword"/>
<Literal datatypeIRI="http://www.w3.org/1999/02/22-rdf-syntax-ns#PlainLiteral">electronics</Literal>
</DataHasValue>
</EquivalentClasses>
<SubClassOf>
<Class IRI="#Handy"/>
<Class IRI="#Radio"/>
</SubClassOf>
<SubClassOf>
<Class IRI="#Radio"/>
<Class IRI="#Electronics"/>
</SubClassOf>
<ClassAssertion>
<Class IRI="#Electronics"/>
<NamedIndividual IRI="#Electronics"/>
</ClassAssertion>
<ClassAssertion>
<Class IRI="#Handy"/>
<NamedIndividual IRI="#handy"/>
</ClassAssertion>
<ClassAssertion>
<Class IRI="#Radio"/>
<NamedIndividual IRI="#radio"/>
</ClassAssertion>
<DataPropertyAssertion>
<DataProperty IRI="#GTIP_number"/>
<NamedIndividual IRI="#Electronics"/>
<Literal datatypeIRI="http://www.w3.org/2001/XMLSchema#string">20.12 </Literal>
</DataPropertyAssertion>
<DataPropertyAssertion>
<DataProperty IRI="#GTIP_number"/>
<NamedIndividual IRI="#handy"/>
<Literal datatypeIRI="http://www.w3.org/2001/XMLSchema#string">20.12.15.47</Literal>
</DataPropertyAssertion>
<DataPropertyAssertion>
<DataProperty IRI="#Keyword"/>
<NamedIndividual IRI="#handy"/>
<Literal datatypeIRI="http://www.w3.org/2001/XMLSchema#string">handy</Literal>
</DataPropertyAssertion>
<DataPropertyAssertion>
<DataProperty IRI="#GTIP_number"/><NamedIndividual IRI="#radio"/>
<Literal datatypeIRI="http://www.w3.org/2001/XMLSchema#string">20.12.15</Literal>
</DataPropertyAssertion>
<DataPropertyRange>
<DataProperty IRI="#GTIP_number"/>
<Datatype abbreviatedIRI="xsd:string"/>
</DataPropertyRange>
<DataPropertyRange>
<DataProperty IRI="#Keyword"/>
<Datatype abbreviatedIRI="xsd:string"/>
</DataPropertyRange>
<AnnotationAssertion>
<AnnotationProperty abbreviatedIRI="rdfs:label"/><IRI>#Electronics</IRI>
<Literal datatypeIRI="http://www.w3.org/2000/01/rdf-schema#Literal">Electronics</Literal>
</AnnotationAssertion>
<AnnotationAssertion>
<AnnotationProperty abbreviatedIRI="rdfs:label"/>
<IRI>#GTIP_number</IRI>
<Literal datatypeIRI="http://www.w3.org/2000/01/rdf-schema#Literal">GTIP_number</Literal>
</AnnotationAssertion>
<AnnotationAssertion>
<AnnotationProperty abbreviatedIRI="owl:deprecated"/><IRI>#Keyword</IRI>
<Literal datatypeIRI="http://www.w3.org/2000/01/rdf-schema#Literal">Keyword</Literal>
</AnnotationAssertion>
<AnnotationAssertion>
<AnnotationProperty abbreviatedIRI="rdfs:label"/><IRI>#Radio</IRI>
<Literal datatypeIRI="http://www.w3.org/2000/01/rdf-schema#Literal">Radio</Literal>
</AnnotationAssertion>
<AnnotationAssertion>
<AnnotationProperty abbreviatedIRI="rdfs:comment"/>
<AbbreviatedIRI>rdfs:isDefinedBy</AbbreviatedIRI>
<Literal datatypeIRI="http://www.w3.org/2001/XMLSchema#string">Product Code</Literal>
</AnnotationAssertion>
<AnnotationAssertion>
<AnnotationProperty abbreviatedIRI="rdfs:isDefinedBy"/>
<AbbreviatedIRI>rdfs:isDefinedBy</AbbreviatedIRI>
<Literal datatypeIRI="http://www.w3.org/2001/XMLSchema#Name">Funda</Literal>
</AnnotationAssertion>
<AnnotationAssertion>
<AnnotationProperty abbreviatedIRI="owl:versionInfo"/>
<AbbreviatedIRI>rdfs:isDefinedBy</AbbreviatedIRI>
<Literal datatypeIRI="http://www.w3.org/2001/XMLSchema#string">1.0</Literal>
</AnnotationAssertion>
</Ontology>
<!-- Generated by the OWL API (version 3.4.2) http://owlapi.sourceforge.net
- &gt;`以下是我在java中的一些代码,我将indivduals的关键字值与KeywordArray元素进行比较:
public static String RankEntity(OWLEntity entity){ //rank results
StringBuilder sb=new StringBuilder();
OWLDataProperty p = factory.getOWLDataProperty(IRI.create(base + "keyword"));
String keyword="";
Set<OWLNamedIndividual> result = entity.getIndividualsInSignature();
for (OWLNamedIndividual owlNamedIndividual : result) {
for (OWLClassExpression eclass:EntitySearcher.getTypes(owlNamedIndividual, ontology)){
for (OWLLiteral lit: EntitySearcher .getDataPropertyValues(owlNamedIndividual,p,ontology)){
for (int j=0;j<KeywordArray.length;j++){
if (KeywordArray[j]!=null){
if(lit.getLiteral().equals(KeywordArray[j]))
{
if (keyword=="")
keyword+= " " + KeywordArray[j];
else
keyword+= ", " + KeywordArray[j];
erank++;
}
}
}
}
}
System.out.println("Rank: [ " + erank + " ]\t " +
"keywords: [ " + keyword + " ]");
}
return ("Rank: [ " + erank + " ]\t " +
"Keywords: [ " + keyword + " ]");
}'