- From: Libby Miller <Libby.Miller@bristol.ac.uk>
- Date: Thu, 16 Jan 2003 14:28:04 +0000 (GMT)
- To: Jos De_Roo <jos.deroo@agfa.com>
- cc: "Libby Miller <Libby.Miller" <Libby.Miller@bristol.ac.uk>, www-rdf-rules <www-rdf-rules@w3.org>
thanks everyone - keep them coming :) Probably best to stick to www-rdf-rules@w3.org though - my fault - I started the cross-post to public-esw (which is the public SWD-Europe mailing list). cheers Libby On Thu, 16 Jan 2003, Jos De_Roo wrote: > > > Hi Libby! > > good question; it seems to us that a query is simply > a set of triples where bnodes play the role of variables > we then basically can apply a resolution process > > [[[ > The resolution process starts with a query. A query is a tripleset. > The query will be matched against the triplesets of the initial > graph G and against the rules. The set unifies with a rule when > one of the triples of the set unifies with the consequent of the > rule. The set unifies with another set if all triples in the set > unify with a triple of the other set. This can possibly be done > in different ways. The result of the unification of two triple > sets is a list of substitutionlists. > ]]] > http://www.agfa.com/w3c/2002/02/thesis/An_inference_engine_for_RDF.html > and this is work done by Guido Naudts in his master thesis > > we also have some running code at http://www.agfa.com/w3c/euler/ > and some testcases starting at http://www.agfa.com/w3c/euler/etc5 > > but there's still a lot to do... > > -- , > Jos De Roo, AGFA http://www.agfa.com/w3c/jdroo/ > > > > Libby Miller > <Libby.Miller@bris To: www-rdf-rules@w3.org > tol.ac.uk> cc: public-esw@w3.org > Sent by: Subject: RDF query testcases? > www-rdf-rules-requ > est@w3.org > > > 2003-01-16 12:40 > AM > > > > > > > > > Hi all > > We have some effort in SWAD-Europe [1] to write a document about RDF > query [see [2]]. Part of this will be FAQ-based - a start is here [3], > (and I'd be grateful for any FAQs or answers). > > The main reason for sending this message it because I've chatted to a > few people who feel that a collection of RDF query testcases would be a > useful thing to have, and I can put some effort into this - maybe as a > minimum, finding out what's already available, and maybe look into some > ways of enabling one query language implementation to use another's > testcases. > > So, would anyone out there like to share their test and their > experiences of writing them? I can infer that Jena and 4suite have > them; I think Mozilla has some too. I've got some here for Inkling: > > http://swordfish.rdfweb.org/rdfquery/tests/ > http://swordfish.rdfweb.org/rdfquery/rdf/ > http://swordfish.rdfweb.org/rdfquery/queries/ > > Basically the test scripts read in > http://swordfish.rdfweb.org/rdfquery/rdf/query-results-manifest.rdf > > which specifies the RDF/XML file to pull in, the query to use and the > expected number of rows in the resulting table. So it's only a very > basic test of whether the query engine is functioning. > > Any more? Any thoughts? > > cheers, > > Libby > > [1] http://www.w3.org/2001/sw/Europe/ > [2] http://www.w3.org/2001/sw/Europe/plan/workpackages/live/esw-wp-7.html > [3] http://www.w3.org/2001/sw/Europe/reports/rdf_ql_comparison_report/ > > > > > > > >
Received on Thursday, 16 January 2003 09:31:18 UTC