Using the pizza ontology, I want to be able to look up all the toppings for American pizza. If I open the ontology in Protégé, I can see that American pizza has the following restrictions:
I am generating an RDF file programmatically in Jena i.e. when I am inserting data in the rdf (instances) i need to have an unique URI (which will refer to the resource), somewhat like primary key in
below is my .rdfs file. i need to get YYYY if my input is XXXX. How do i do it. <rdfs:Class rdf:about=\"&kb;XXXX\"
how can i add xsl stylesheet in XML out stream provided by SPARQLResultsXMLWriter? RepositoryConnection con = repository.getConnection();
currently, I found out that I can query using model (Model) syntax in Jena in a rdf after loading the model from a file, it gives me same output if I apply a sparql query. So, I want to know that , is
This might be a rather novice question but RDF graphs and sparql queries just confuse me. This is the relevant part of an (EARL, Evaluation And Report Language) RDF file that I need to search:
Is it possible to run a Jena TDB database from a Python app to store a large amount of RDF data? What wou开发者_JS百科ld be a native alternative in Python?An alternative is to use a SPARQL endpoint su
I\'m new here,and i have some problem about FOAF. I use jena create a FOAF like this : <rdf:type rdf:resource=\"http://xmlns.com/foaf/0.1/Person\"/>
In my application, i used the SPARQL database is SDB of Jena, and the database server is DB2. but i find the query performance of SPARQL is very low.
I am working on a Performance analysis on Ontology based Context Management and Process based Context Management.
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