Re: meta-information about assertions

On 2008-03 -03, at 04:45, Cristiano Longo wrote:

>
> Hi all,
> i'm trying to merge rdf(more specifically OWL) graphs
> from different sources using collaborative filtering
> and trust related technologies. But my question is:
> what is the proper way to encode a "meta assertion"
> like "A says X about B", in order to deal with
> contraddictory assertions?

Full Notation3 extends RDF to allow literal graphs, for just this
purpose.

who:Joe  ex:says {  :B rdf:type :X }.

or more maybe

:doc1   a  doc:Document;
	foaf:maker   [  foaf:name "Joe" ];
	ex:asserts   {  :B rdf:type :X }.

See Primer - Getting into the semantic web and RDF using N3
http://www.w3.org/2000/10/swap/Primer.html
http://www.w3.org/2000/10/swap/doc/

Tim BL


>
>
> Reification? Using SKOS? Something else?
>
> Thank you in advance.
>
>
>      ___________________________________
> L'email della prossima generazione? Puoi averla con la nuova Yahoo!  
> Mail: http://it.docs.yahoo.com/nowyoucan.html