... This FAQ entry is reflecting the practicalities of JDBC connections. It is a feature of JDBC drivers for the major databases that the default behaviour is...
I have some questions about how the forward engine resolves conflicts (using non-monoton rules). I beg your pardon if anyone has ased this before. Which is the...
... Unfortunately, you've asked this question on the first day of Dave's holiday; he's Mr Rule Engine. I had a quick look at the code; it looks like it just...
... prefixes ... UpdateRequest extends Prologue and Proglogue has the .setPrefix (Query extends Prologue as well). Is that what you mean? Query.setPrefix is...
... Dave's ... Well, if two (or more) rules are ready to fire, which rule will fire first, second, ... ? Or fire all of them? Without a concrete conflict ...
... Only if your rules are non-monotonic. You implied yours were, but didn't say how or why. Tell us more about your problem; we may be able to answer it...
Hi, I think my question is very simple: Suppose a OWL-DL ontology with: class "Person" with a restriction on property "hasFather" of "exactly 1" (cardinality...
... No, because it is possible that that information is somewhere else ... Since you create the individual "me" and said it is of class Person, the reasoner...
... Because It is an open world assumption, right? ... Understood. ... But it seems to me that this might be a very common task in many applications. For...
Dear All, As some of you know I have been doing some work on integrating DL ontologies and Argumentation. Argumentation is a (reasonably new) approach to...
Matt Williams
matthew.williams@...
Aug 2, 2007 12:21 am
30374
... Ah, perfect! I don't know why I didn't see that one... Thanks! ... An initial binding for the entire request would be nice, similar to ...
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Hi, we are looking for an OWL reasoning engine with rule support, so we tried Jena and OWLIM. At first, we liked Jena better because of the possibility to...
Hello Bernd, ... Rule reasoning and efficiency is really in Dave's remit, but he's not in the office at the moment. When you say the "default OWL reasoner" for...
... It's not clear from what Bernd says whether they're trying to load triples /into an inference model/. I suspect that this is sub-optimal and that they'd be...
The issue was identified...the use of blank nodes for resource URIs were causing us to fail. Once we started using 'named' URIs, all was well. Thanks! Birch...
Hi, When i setup an iterator from an inference model, and when i iterate over it, i get com.hp.hpl.jena.reasoner.ReasonerException: Internal error in LP ...
Ahmet YILDIRIM
ahmet.yil@...
Aug 3, 2007 7:55 am
30382
... No idea, but if you can construct a minimal complete example, Dave will be able to look at it when he's available. Knowing /which/ inference model and...
Ok, I will give a try, by the way, this error occurs after peace of code below runs : m =com.hp.hpl.jena.rdf.model.ModelFactory.createDefaultModel(); ...
Ahmet YILDIRIM
ahmet.yil@...
Aug 3, 2007 9:00 am
30384
... (By the way -- which version of Jena are you running?) ... ("piece") ... Not that it has anything to do with your problem [1], but why are you using the...
Hi all, I got a question regarding the behaviour of the generic rule engine in case of updates to the underlying base model. Here my example: *** // first the...
... That's right. ... Really? That /does/ surprise me. Minimal complete example, please? ... Yes. The inference model doesn't watch for changes to the base...
First of all, many thanks for your instant replies! ... Well, sorry, i should have been more precise. When i said "default OWL reasoner", i meant the most...
Hi Chris, interesting...when constructing the minimal complete example, it "suddenly" worked as expected. I have already found the problem causer - I...
... If you can do with less, use less; most expressive also means most resource-intensive. Depending on exactly what you're trying to do, you might be able to...
Hi list, Forgive me if this is a simple question, but I have no worked with the Jena API for awhile, and have become somewhat unfamiliar with it. I've looked...
Daniel Gresh
dgresh@...
Aug 3, 2007 8:10 pm
30391
... Yes. ... OntModel.listClasses() and similar methods ... If you just want to list the classes, and don't care about reasoning over the class hierarchy, then...
Hello, after code Model m = ModelFactory.createOntologyModel(OntModelSpec.OWL_MEM); RDFReader r = m.getReader("GRDDL"); r.setProperty("GRDDL.RDFA", "true"); i...
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