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Re: RDF query testcases?

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>
Message-ID: <Pine.GSO.4.44.0301161426480.9686-100000@mail.ilrt.bris.ac.uk>


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 GMT

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