Chris Bizer wrote:
> Hi Emmanuel,
>
> I think this is definitively useful behaviour. The question which is coming
> to my mind is, what should be the default behaviour?
>
> Should the query engine by default use subproperty and subclass
> relationships, which I guess will slow it significantly down?
>
> My understanding is that Fresnel is about visualizing materialized RDF
> graphs and inferencing (if needed) is done on a lower layer before Fresnel
> gets involved. This is the same approach SPARQL is also taking.
>
> Thus I think (if at all) you should tell the engine explicitly to do
> inferencing using '!' and the none-inferencing case should be the default.
Agreed.
--
Ryan Lee ryanlee_at_w3.org
W3C Research Engineer +1.617.253.5327
http://simile.mit.edu/
Received on Fri Sep 09 2005 - 19:36:52 EDT