Dear Jena user group, I've a problem to get property values from an individual. I use the getPropertyValues method of Individual to get a list history objects ...
I ran into that problem when I was creating an InfModel on top of my OntModel because I didn't realize that the OntModel is an InfModel. Give us the part of...
I'm trying to map some ontologies and instance data. In order to get the information correctly mapped, I need to add a couple of custom rules to my inference...
Hi all£¬ Can anybody give code snippets to generate such an OWL file as the following : <?xml version="1.0"?> <rdf:RDF ...
fji
jlfeng@...
Apr 2, 2005 6:23 am
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Hi everyone, I'm new for Jena. Now I studying the automatic semantic web service composition. I would like to use Jena to translate service description in...
Hello I thought you might be interested about some particularities of the http:///www.osar.ch/ (swiss refugee council) website which has just been relaunched: ...
Well I tried creating the model with a reasoner, OntModel model = ModelFactory.createOntologyModel(OntModelSpec.OWL_MEM_RULE_INF, null); and I have been...
Well I tried creating the model with a reasoner, OntModel model = ModelFactory.createOntologyModel(OntModelSpec.OWL_MEM_RULE_INF, null); and I have been...
Hi, The time taken to run OntModel m.listClasses on the wine and food ontologies is quite long. Is there any way to reduce the time taken for processing it? I...
Rent-A-Pro.com consulting marketplace offers on demand staffing and service delivery for information technology projects. We represents a wide variety of...
I want to delete some individuals in owl file. How can I delete an individual in the model? I have try some time and failed. Can someone help me? ... Do You...
... It's not a null class, it's an anonymous class expression. The class is not null, the *name* (ie URI) is null. ... The class owl:Nothing represents the...
... In that case you really should read the OWL introductory material. It's a moderately complex language with some non-obvious subtleties. There are also a...
Hi Arunkumar ... What's happening here is that the listClasses is being delegated to the DL reasoner via the DIG interface. When you ask Racer for a list of...
... Probably the easiest way is to list all of the statements (i.e. RDF triples) that have your class as subject: OntClass c = .... your ontclass ...; for...
... Since you are using your own ruleset, my guess is that you have created a non-terminating loop in your rules. Try reducing the rules in some rigorous way...
Hi Mark, ... You would need some way to get the default namespace for a model. I think (I haven't checked this, should be easy to test though) that if you ask...
... N3, Notation 3, is an alternative way of writing RDF (and of doing rulesy things with it). It is typically mroe compact than RDF/XML and some people find...
Hi Ralf, ... You didn't quite provide a runnable example, but I did try your code on my system after filling in the missing bits. The only property that will...
... No. So arrange not to be in this awkward situation. If you tell us more about what you're trying to do, we may be able to be more constructive. PS I don't...
