I want to modify the existing ontology in protege tool and then add individuals into it. After development of the framework in Protege i want to add lots of individuals to it (more than thousands).
So, for adding individuals i am planning to use RDF Jena Api.
Is it possible to extend the already build ontology from jena api?
Please provide some example..
Hello,
typically, you need to
1) Load an existing ontology into the memory
2) Add some classes, relations or individuals (assuring uniqueness of URIs)
3) Save back the model into a file
Multiple examples are in Jena API documentation. You may also take a look at
http://www.programcreek.com/java-api-examples/index.php?api=com.hp.hpl.jena.ontology.Individual
Best regards
You can populate your ontology by providing URIs to your classes from already populated knowledge bases, for example from Dbpedia knowledge base.
Once, you use your reasoner, all individuals belonging to these classes (which URIs are imported from other datasets) are loaded into your ontology.
The following open source application based on Jena API uses this principle:
https://sourceforge.net/projects/authpubli-citations-app/
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