使用Jena以编程方式生成OWL类层次结构

时间:2013-07-03 15:15:19

标签: java jena ontology owl

我想通过提供向量以编程方式使用OWL生成本体。我的目标是能够在Protégé中打开生成的OWL文件并使用Jena。

输入矢量
我要传递的向量:
[[layer, network layer, data link layer, physical layer], [network, computer network], [data link], [ontology, ontology extraction]].


预期输出

输出应具有以下树状层次结构:

layer
  -network layer
  -data link layer
  -physical layer
network
  -computer network
ontology
  -ontology extraction
data link

network layer低于layer等等的层次结构非常重要。

这是我想要生成的文件的示例:

<rdf:RDF
    xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
    xmlns:owl="http://www.w3.org/2002/07/owl#"
    xmlns:xsd="http://www.w3.org/2001/XMLSchema#"
    xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#">
  <owl:Class rdf:about="#network"/>
  <owl:Class rdf:about="#ontology"/>
  <owl:Class rdf:about="#physical_layer">
    <rdfs:subClassOf>
      <owl:Class rdf:about="#layer"/>
    </rdfs:subClassOf>
  </owl:Class>
  <owl:Class rdf:about="#data_link_layer">
    <rdfs:subClassOf rdf:resource="#layer"/>
  </owl:Class>
  <owl:Class rdf:about="#network_layer">
    <rdfs:subClassOf rdf:resource="#layer"/>
  </owl:Class>
  <owl:Class rdf:about="#computer_network">
    <rdfs:subClassOf rdf:resource="#network"/>
  </owl:Class>
  <owl:Class rdf:about="#ontology_extraction">
    <rdfs:subClassOf rdf:resource="#ontology"/>
  </owl:Class>
</rdf:RDF>

1 个答案:

答案 0 :(得分:5)

你的问题不是很清楚(参见上面的评论)所以我想猜测你想以编程方式创建一个类层次结构。使用Jena执行此操作的大纲代码为:

OntModel m = ... your model ... ;
NS = "http://your.domain/example#";

// define the various classes

OntClass layer = m.createClass( NS + "Layer" );
layer.setLabel( "layer", "en" );

OntClass networkLayer = m.createClass( NS + "NetworkLayer" );
layer.setLabel( "network layer", "en" );
// ...

// create the class hierarchy

layer.addSubClass( networkLayer );
// ...

// save the file
FileWriter out = null;
try {
    out = new FileWriter( "./test.owl" );
    m.write( out, "RDF/XML-ABBREV" );
}
finally {
    if (out != null) {
        try {out.close()) ) catch (IOException ignore) {}
    }
}
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