- From: Hector Ceballos <al780234@mail.mty.itesm.mx>
- Date: Fri, 5 Apr 2002 07:51:48 -0600
- To: <www-rdf-logic@w3.org>, "Soetens Peter" <peter.soetens@vrt.be>
- Cc: "Vassilis Christophides" <christop@ics.forth.gr>
> I'm actually interested in the immediate reasoning on the DB if that is what > you are > suggesting. I want to do intelligent querrying immediately onto the DB > benefitting from the performacne improvement a DB can give me. I mean, I > want to search through my ontology and suggest things to the user to improve > his search using the ontology, but I don't think this is possible with a > large structure using a Description Logic like OIL+DAML. So I thought a DB > would be interesting in this respect. Suggestions are always welcome, thank > you very much for the pointers I allready received. > > peter > I'm using the ICS-FORTH RDFSuite[1]. This suite includes RDF storage in a PostgreSQL DB, and a query language (RQL) that access the stored ontologies. By now, it just let you use RDF, not DAML+OIL. The suite includes tools for storing the RDF file, including classes, properties and instances. > > On April 3, Hector Ceballos writes: > > > You're mentioning initiatives and works for mapping ontologies in > > > databases, but is there any initiative for especifying in certain > > > way a relationship between classes/properties and objects stored in > > > a database? This way, ontologies would remain at web but instances > > > could be stored locally and accesible through intelligent agents or > > > other kind of services. Probably it's not related with original > > > question, but I'd like to know if exist something like this. My last comment arises because I consider convenient to have a fast access "backup" of the ontologies stored in a database, but instances could be accessed directly from other database (a production database, for example) just mapping ontology to that DB. This way, using a common query language you could reference ontology and instances at same time. Greetings Hector G. Ceballos [1] http://139.91.183.30:9090/RDF/index.html
Received on Friday, 5 April 2002 08:53:16 UTC