owl

I am stuck in the middle of ontology creation. I want to create an OWL file using Java which is my objective. I have created the hierarchical clusters but now I have to use those clusters in ontology creation. Thanks in advance. I have tried this so far. I got Dickinson's point. Now this is my code and I am getting an Exception as Exception in thread "main" com.hp.hpl.jena.shared.BadURIException: Only well-formed absolute URIrefs can be included in RDF/XML output: Code: 57/REQUIRED_COMPONENT_MISSING in SCHEME: A component that is required by the scheme is missing. JenaOwl.java public class

I have been using the ROWLEX library to handle RDF-s. It is shipped with a designtime GUI tool called OwlGrinder.exe that can generate C# helper classes (.NET assemblies to be exact) from my OWL ontologies. I wonder if anyone knows if I could do the same programatically in runtime. ROWLEX just became open source, so now you have the chance to actually look inside the code of OwlGrinder.exe and copy the code from there. However, here is a short example: private NC3A.SI.Rowlex.AssemblyGenerator generator; private void RunAssemblyGeneration(XmlDocument ontologyFileInRdfXml) { this.generator = new

I'm having trouble expressing the following situation in my Ontology: Suppose I have four people voting and four votes (so there is a one-to-one mapping between vote and voter). People can either vote yes or no. If I know the outcome of three people's votes, I ought to be able to deduce the fourth person's vote. So to reiterate: John, Bob, Mary, and Carol each vote. Since there are four people there are four votes. The outcome of the vote is a tie (2 yes, and 2 no). Later on the reasoner determines that Bob and John voted no. The reasoner should then be able to deduce that Mary and Carol voted

I try to move an ontology (*.owl file) into neo4j to do queries on it. I found some helpful information here but I am facing with issues in this line: Node thingNode = getOrCreateNodeWithUniqueFactory("owl:Thing"); I don't know to which class the " getOrCreateNodeWithUniqueFactory " belongs. Is this available in some library or should I implement it by myself? What am I missing here? There are several ways to create unique nodes. The probably easiest is to use the UniqueFactory as seen in the Neo4j docs under http://docs.neo4j.org/chunked/milestone/tutorials-java-embedded-unique-nodes.html

I have created the ontology file in the Protege and save it in the RDF/XML format. It also contains the OWL tag. So, the ontology file created by Protege and saved as RDF/XML format are actually the RDF files or the RDF form of the OWL files or the OWL format containing the RDF also or something else ? <?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#" > ]> <rdf:RDF xmlns="http://www

Given a choice between OWL Property Restrictions and SHACL , is there any reason to choose the OWL approach any more? Particularly with respect to cardinality constraints, I'm wondering whether SHACL is considered to supercede OWL. The syntax appears similar, to my casual inspection. I am probably missing the purpose of OWL cardinality constraints. As part of an ontology, they should facilitate inferencing (a separate concern from validation). But how do cardinality constraints facilitate inferencing? The differences between OWL and SHACL are presented in the table below. | OWL | SHACL | |----