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Re: Refactoring OWL Lite - a proposal based on implementation in rule-based systems

From: Jos De_Roo <jos.deroo.jd@belgium.agfa.com>
Date: Sat, 5 Oct 2002 00:20:02 +0200
To: "Dan Connolly <connolly" <connolly@w3.org>
Cc: ls3 <ls3@aifb.uni-karlsruhe.de>, Raphael Volz <volz@aifb.uni-karlsruhe.de>, Webont <www-webont-wg@w3.org>, www-webont-wg-request@w3.org
Message-ID: <OFDEF3981E.0F7AAFFA-ONC1256C48.00791540-C1256C48.007AB057@agfa.be>

[very insightful paper and clearly captures inconsistencies]

> That would get around some of the problems with enumerations; e.g.
> we can get from
>          :MyBrothers owl:oneOf (:Bob :John).
> to
>          :Bob rdf:type :MyBrothers
> with a rule:
>          statement(X, rdf:type, C) :- statement(C, owl:oneOf, L),
>                    statement(X, owl:member, L).

(thought it was L owl:item X instead of X owl:member L, but anyhow)
and then some supporting rules such as
    statement(L, owl:item, X) :- statement(L, rdf:first, X).
    statement(L, owl:item, X) :- statement(L, rdf:rest, B),
                                 statement(B, owl:item, X).
(although we are using binary predicates, but anyhow)

-- ,
Jos De Roo, AGFA http://www.agfa.com/w3c/jdroo/
Received on Friday, 4 October 2002 18:23:40 UTC

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