Rules over complex examples (Was: OWL vs RDF)

On 10/24/06, Ivan Herman < ivanw3.org">ivanw3.org>; wrote:

HI Adrian & all,

yes, I can see your point and indeed, if a rule system was around, it
may do the trick in simple cases. Another (non-exclusive) approach is
what I briefly mentioned at the F2F: is the development of a kind of an
intermediate layer between RDFS and OWL; a layer that would allow some
extra information to be added to the knowledge base without forcing the
usage of a DL reasoner. There are several approaches for this, and we (I
mean, W3C) may want to look into this more closely next year...

Ivan

Adrian Walker wrote:
>; Hi Ivan, Kerstin & All --
>
&gt; A quick thought about "you are a perfectly decent Semantic Web citizen
&gt; even if you do not use OWL".
>
> We have found that, even in rather simple cases, it's quite hard for a
> programmer to check that inferences over RDF are producing correct results.
&gt;
> An approach that we have found useful is to reason over RDF using rules
> in executable, open vocabulary English.
&gt;
> With this extra English semantics attached, we can have the system
>; explain, in English, at the business or scientific level, how it derived
&gt; a result.
&gt;
> There's&nbsp; a simple example at
>
&gt;
> https://www.reengineeringllc.com/demo_agents/RDFQueryLangComparison1.agent
>
> You can view, edit, and run the example (and others) by pointing a
> browser to reengineeringllc.com <http://reengineeringllc.com >; and
> selecting the example RDFQueryLangComparison1 .
>
>; HTH,  -- Adrian
>;
>
> Internet Business Logic (R)
> Executable open vocabulary English
&gt; Online at www.reengineeringllc.com <http://www.reengineeringllc.com>
> Shared use is free
>
> Adrian Walker
>; Reengineering
> Phone: USA 860 830 2085
>
>

--

Ivan Herman, W3C Semantic Web Activity Lead
URL: http://www.w3.org/People/Ivan/
PGP Key: http://www.cwi.nl/%7Eivan/AboutMe/pgpkey.html
FOAF: http://www.ivan-herman.net/foaf.rdf