- From: Bijan Parsia <bparsia@isr.umd.edu>
- Date: Wed, 2 Nov 2005 03:10:09 -0500
- To: RDF Data Access Working Group <public-rdf-dawg@w3.org>
I just wanted to give some pointers to SPARQL over OWL DL implementation experience. Evren Sirin recently released a new beta of Pellet which now (thanks Andy) has SPARQL query support: http://lists.mindswap.org/pipermail/pellet-devel/2005-November/ 000425.html Some performance stats (no comparison with KAON2 yet, but Boris is going to release some stats soon as he's working on a paper): http://www.mindswap.org/2003/pellet/performance.shtml KAON2 also now has SPARQL support (and since it has limited SWRL support, though much more than Pellet, we have query over SWRL): http://kaon2.semanticweb.org/ These both are focused on conjunctive instance conjunctive query, so no property variables and no (or limited) "schema" queries. With the new semantics I expect the former to be lifted some. RacerPro supports its own query language nRQL, but I expect they will add sparql support at some point (and I shall encourage them :)): http://www.racer-systems.com/products/racerpro/features.phtml I know we will support the SPARQL protocol, both raw HTTP and SOAP. I will encourage KAON2 and RacerPro to do so as well. Cheers, Bijan.
Received on Wednesday, 2 November 2005 08:10:18 UTC