自定义本体和RDF-Java 学习之路

我使用Protege创建了一个自定义OWL本体，它以基于树的RDF / XML格式序列化 .

我想要做的是从自定义本体中的预定义类创建RDF三元组并将它们存储在RDF文件中 . 并使用SPARQL查询这些三元组 . 我怎样才能做到这一点？

===更新===

这就是我的自定义本体，它具有Comment类和isAbout对象属性 .

<?xml version="1.0"?>


<!DOCTYPE rdf:RDF [
    <!ENTITY owl "http://www.w3.org/2002/07/owl#" >
    <!ENTITY xsd "http://www.w3.org/2001/XMLSchema#" >
    <!ENTITY rdfs "http://www.w3.org/2000/01/rdf-schema#" >
    <!ENTITY rdf "http://www.w3.org/1999/02/22-rdf-syntax-ns#" >
    <!ENTITY reviews_2 "http://review-analyzer.local/ontologies/reviews_2.owl#" >
]>


<rdf:RDF xmlns="http://review-analyzer.local/ontologies/reviews_2.owl#"
     xml:base="http://review-analyzer.local/ontologies/reviews_2.owl"
     xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#"
     xmlns:reviews_2="http://review-analyzer.local/ontologies/reviews_2.owl#"
     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://review-analyzer.local/ontologies/reviews_2.owl"/>



    <!-- 
    //
    // Object Properties
    //
     -->




    <!-- http://review-analyzer.local/ontologies/reviews_2.owl#isAbout -->

    <owl:ObjectProperty rdf:about="&reviews_2;isAbout">
        <rdf:type rdf:resource="&owl;FunctionalProperty"/>
        <rdfs:range rdf:resource="&reviews_2;Feature"/>
        <rdfs:domain rdf:resource="&reviews_2;Review"/>
    </owl:ObjectProperty>



    <!-- 
    //
    // Data properties
    //
     -->




    <!-- http://review-analyzer.local/ontologies/reviews_2.owl#comment -->

    <owl:DatatypeProperty rdf:about="&reviews_2;comment">
        <rdf:type rdf:resource="&owl;FunctionalProperty"/>
        <rdfs:domain rdf:resource="&reviews_2;Review"/>
        <rdfs:range rdf:resource="&xsd;string"/>
    </owl:DatatypeProperty>



    <!-- http://review-analyzer.local/ontologies/reviews_2.owl#rating -->

    <owl:DatatypeProperty rdf:about="&reviews_2;rating">
        <rdf:type rdf:resource="&owl;FunctionalProperty"/>
        <rdfs:domain rdf:resource="&reviews_2;Review"/>
        <rdfs:range rdf:resource="&xsd;integer"/>
    </owl:DatatypeProperty>



    <!-- http://review-analyzer.local/ontologies/reviews_2.owl#type -->

    <owl:DatatypeProperty rdf:about="&reviews_2;type">
        <rdf:type rdf:resource="&owl;FunctionalProperty"/>
        <rdfs:domain rdf:resource="&reviews_2;Feature"/>
    </owl:DatatypeProperty>



    <!-- 
    //
    // Classes
    //
     -->




    <!-- http://review-analyzer.local/ontologies/reviews_2.owl#Battery -->

    <owl:Class rdf:about="&reviews_2;Battery">
        <rdfs:subClassOf rdf:resource="&reviews_2;Feature"/>
    </owl:Class>



    <!-- http://review-analyzer.local/ontologies/reviews_2.owl#Body -->

    <owl:Class rdf:about="&reviews_2;Body">
        <rdfs:subClassOf rdf:resource="&reviews_2;Feature"/>
    </owl:Class>



    <!-- http://review-analyzer.local/ontologies/reviews_2.owl#Camera -->

    <owl:Class rdf:about="&reviews_2;Camera">
        <rdfs:subClassOf rdf:resource="&reviews_2;Feature"/>
    </owl:Class>



    <!-- http://review-analyzer.local/ontologies/reviews_2.owl#Display -->

    <owl:Class rdf:about="&reviews_2;Display">
        <rdfs:subClassOf rdf:resource="&reviews_2;Feature"/>
    </owl:Class>



    <!-- http://review-analyzer.local/ontologies/reviews_2.owl#Feature -->

    <owl:Class rdf:about="&reviews_2;Feature"/>



    <!-- http://review-analyzer.local/ontologies/reviews_2.owl#Memory -->

    <owl:Class rdf:about="&reviews_2;Memory">
        <rdfs:subClassOf rdf:resource="&reviews_2;Feature"/>
    </owl:Class>



    <!-- http://review-analyzer.local/ontologies/reviews_2.owl#Platform -->

    <owl:Class rdf:about="&reviews_2;Platform">
        <rdfs:subClassOf rdf:resource="&reviews_2;Feature"/>
    </owl:Class>



    <!-- http://review-analyzer.local/ontologies/reviews_2.owl#Review -->

    <owl:Class rdf:about="&reviews_2;Review"/>



    <!-- http://review-analyzer.local/ontologies/reviews_2.owl#front -->

    <owl:Class rdf:about="&reviews_2;front">
        <rdfs:subClassOf rdf:resource="&reviews_2;Camera"/>
    </owl:Class>



    <!-- 
    //
    // Individuals
    //
     -->




    <!-- http://review-analyzer.local/ontologies/reviews_2.owl#Battery -->

    <owl:NamedIndividual rdf:about="&reviews_2;Battery">
        <rdf:type rdf:resource="&reviews_2;Battery"/>
        <type rdf:datatype="&xsd;string">battery</type>
    </owl:NamedIndividual>



    <!-- http://review-analyzer.local/ontologies/reviews_2.owl#OLED -->

    <owl:NamedIndividual rdf:about="&reviews_2;OLED">
        <rdf:type rdf:resource="&reviews_2;Display"/>
        <type rdf:datatype="&xsd;string">OLED</type>
    </owl:NamedIndividual>



    <!-- http://review-analyzer.local/ontologies/reviews_2.owl#amoled -->

    <owl:NamedIndividual rdf:about="&reviews_2;amoled">
        <rdf:type rdf:resource="&reviews_2;Display"/>
        <type rdf:datatype="&xsd;string">amoled</type>
    </owl:NamedIndividual>



    <!-- http://review-analyzer.local/ontologies/reviews_2.owl#fCameraReview -->

    <owl:NamedIndividual rdf:about="&reviews_2;fCameraReview">
        <rdf:type rdf:resource="&reviews_2;Review"/>
        <rating rdf:datatype="&xsd;integer">3</rating>
        <comment rdf:datatype="&xsd;string">awesome</comment>
        <isAbout rdf:resource="&reviews_2;frontCamera"/>
    </owl:NamedIndividual>



    <!-- http://review-analyzer.local/ontologies/reviews_2.owl#frontCamera -->

    <owl:NamedIndividual rdf:about="&reviews_2;frontCamera">
        <rdf:type rdf:resource="&reviews_2;front"/>
        <type rdf:datatype="&xsd;string">front camera</type>
    </owl:NamedIndividual>



    <!-- http://review-analyzer.local/ontologies/reviews_2.owl#review -->

    <owl:NamedIndividual rdf:about="&reviews_2;review">
        <rdf:type rdf:resource="&reviews_2;Review"/>
        <rating rdf:datatype="&xsd;integer">3</rating>
        <comment rdf:datatype="&xsd;string">great</comment>
        <isAbout rdf:resource="&reviews_2;amoled"/>
    </owl:NamedIndividual>



    <!-- http://review-analyzer.local/ontologies/reviews_2.owl#tt -->

    <owl:NamedIndividual rdf:about="&reviews_2;tt">
        <rdf:type rdf:resource="&reviews_2;Review"/>
        <rating rdf:datatype="&xsd;integer">3</rating>
        <comment rdf:datatype="&xsd;string">nice one</comment>
        <isAbout rdf:resource="&reviews_2;amoled"/>
    </owl:NamedIndividual>



    <!-- http://review-analyzer.local/ontologies/reviews_2.owl#tt2 -->

    <owl:NamedIndividual rdf:about="&reviews_2;tt2">
        <rdf:type rdf:resource="&reviews_2;Review"/>
        <rating rdf:datatype="&xsd;integer">2</rating>
        <comment rdf:datatype="&xsd;string">dfgh</comment>
        <isAbout rdf:resource="&reviews_2;amoled"/>
    </owl:NamedIndividual>



    <!-- http://review-analyzer.local/ontologies/reviews_2.owl#xx -->

    <owl:NamedIndividual rdf:about="&reviews_2;xx">
        <rdf:type rdf:resource="&reviews_2;Review"/>
        <rating rdf:datatype="&xsd;integer">4</rating>
        <comment rdf:datatype="&xsd;string">great battery</comment>
        <isAbout rdf:resource="&reviews_2;Battery"/>
    </owl:NamedIndividual>



    <!-- http://review-analyzer.local/ontologies/reviews_2.owl#xx2 -->

    <owl:NamedIndividual rdf:about="&reviews_2;xx2">
        <rdf:type rdf:resource="&reviews_2;Review"/>
        <rating rdf:datatype="&xsd;integer">1</rating>
        <comment rdf:datatype="&xsd;string">fghjk</comment>
        <isAbout rdf:resource="&reviews_2;frontCamera"/>
    </owl:NamedIndividual>



    <!-- 
    //
    // General axioms
    //
     -->

    <rdf:Description>
        <rdf:type rdf:resource="&owl;AllDisjointClasses"/>
        <owl:members rdf:parseType="Collection">
            <rdf:Description rdf:about="&reviews_2;Battery"/>
            <rdf:Description rdf:about="&reviews_2;Body"/>
            <rdf:Description rdf:about="&reviews_2;Camera"/>
            <rdf:Description rdf:about="&reviews_2;Display"/>
            <rdf:Description rdf:about="&reviews_2;Memory"/>
            <rdf:Description rdf:about="&reviews_2;Platform"/>
        </owl:members>
    </rdf:Description>
</rdf:RDF>

我的RDF文件看起来像

<?xml version="1.0"?>
<rdf:RDF
      xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
      xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#"
      xmlns:foaf="http://xmlns.com/foaf/0.1/"
      xmlns:cmnt="http://review-analyzer.local/ontologies/reviews_2.owl#"
      xmlns:admin="http://webns.net/mvcb/">

<cmnt:Comment rdf:ID="me">
    <cmnt:review>Great one!</cmnt:review>
    <cmnt:raitng>5</cmnt:raitng>
    <cmnt:isAbout>
      <cmnt:Display rdf:ID="amoled">
        <cmnt:type>amoled</cmnt:type>
      </cmnt:Display>
    </cmnt:isAbout>
</cmnt:Comment>
</rdf:RDF>

所以我无法想出一种评论哪种方法是从Comment类创建的 .

我不能写点什么吗？

select *
where {
  ?Comment rdf:type ns:Review ;
}

1 回答

2

RDF / XML是RDF . 任何接受SPARQL查询的存储库或库也应该通过库支持的任何加载机制接受该文件 . 例如，Jena和ARQ将能够将其作为库处理，而Fuseki作为SPARQL endpoints 处理 .

回复于 2024-05-09T09:08:30+08:00

自定义本体和RDF

1 回答

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