Hi Rajeev,
The inference costs are directly related to the complexity of the
inference rules. For subclass, and subproperty we haven't see
anything significant based on theYago rules applied to DBpedia
recently. Is their a specific case/instance in which you are
encountering a performance loss using inferencing ? For instance, we
inference on owl:samAs, which when enabled means smush/mesh/combine
two identical URIs that have similar and dissimilar datagraphs e.g.
imagine you had two blogs an old and a new one, if owl:sameAs is
declared via a rule, and the owl:sameAs inferencing is enabled via
SPARQL pragma, you will end up with blog posts from both blog systems
via the URI of either. In this case, the data retrieved is larger,
and at an expected cost, but it this isn't due to the actual act of
"inferencing", but the results of inferencing.
Best Regards
Hugh Williams
Professional Services
OpenLink Software
On 12 Jun 2008, at 12:32, Rajeev J Sebastian wrote:
Hi,
Is there any performance loss when using the option inference in a
triple pattern, when the class does not have any subclasses ?
Regards
Rajeev J Sebastian
----------------------------------------------------------------------
---
Check out the new SourceForge.net Marketplace.
It's the best place to buy or sell services for
just about anything Open Source.
http://sourceforge.net/services/buy/index.php
_______________________________________________
Virtuoso-users mailing list
Virtuoso-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/virtuoso-users
