Hi, A set of horn clauses forms a horn logic program. A horn clauses looks like: A1 and A2 and .... An -> H1 and H2 ... Hn well that sort of idea. This is in a...
Hi, I am a newbie to this arena, and I need your help. Can you direct me to a simple example of JENA inference engine, forward or backward? How does this...
Hi, I found the following document a must read when first starting with jena's inference engine... http://jena.sourceforge.net/inference/index.html Thanks Phil...
Hi, I have the following Java Code to generate an XML Schema File: OntModel m = ModelFactory.createOntologyModel(ProfileRegistry.RDFS_LANG); ...
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Matt Williams
matthew.williams@...
Feb 1, 2006 3:27 pm
Dear Jenas, Does anyone know where the Jena Rule Engine fails to meet the SWRL specification (apart from 1: non xml-syntax and 2: not drawing on inferred...
... An /XML/ Schema file? Are you sure that's what you mean? ... If you want the `actors` object to be the `akteure` property of the `zurueck_melden` subject, ...
1. Find all restrictions which mention the property to be ... Thanks again, now, I can find all the triples which mention the property by model.listStatements(...
Hi All, I try to write a (SPARQL) query using a default graph and a named graph. The first part of the query is to find ?z values from the named graph. The...
... What was the failure? Looks to me as if it there is a programming language syntax error and also a SPARQL error. ... I hope you have all the PREFIXes...
... Andy, Thank you for your quick response. Actualy it was not a failure but this should give me the result. but it only prints the header. Sorry, the...
Hi all, I want to congratulate myself with u for the really good work on the JENA APIs. They are fantastic! Just a thing. I was performing some test using this...
Hi, I'm using the OWL-S api which makes use of Jena, and I'm posting this inconcurrent with another msg to teh OWL-S api mailinglist. I'm using one of the...
... You added both statements to the model yourself. The way not to add the statement "Alice loves Bob" to the model is ... to not add it to the model, ie,...
... I'd guess that the version of Jena some code was compiled with and the version it's running with are not the same; likely the code is running with an older...
... It's hard to help without seeing the actual code that fails (cut down to a minimum) and the full details of the error. At the least, you should print out...
... Horn refers to the form of statements, LP refers to semantics. Horn LP is Horn restricted to only deriving ground facts. ... Yes, and by the backward...
... and ... What's the "header"? Please remembver I can't see the data nor do I have the background of the problem you are solving. ... If there are no...
... Phil has already pointed you to the documentation. ... There are somethings you can express in rules which you can't express in OWL and vice versa. For...
... Well it is not trying to meet the SWRL specification - it predates SWRL and is intended for different purposes. You can write Jena rules which refer to...
... If the listStatements is returning empty then you have no such statements in your model and there is nothing to replace. Given you are expecting such...
