Can you explain how SPARQL construct queries can be chained together as in
forward chaining? I'm interested in doing something like that.
Thanks,
Jim
On Wednesday, July 31, 2013, Kingsley Idehen wrote:
> On 7/31/13 7:29 AM, Hugh Williams wrote:
>
> Hi Kayhan,
>
> Virtuoso rule sets for setting up inference and reasoning can be setup
> as detailed at:
>
> http://docs.openlinksw.com/virtuoso/rdfsparqlrule.html
>
>
> What we are missing right now is a custom rules (via views) feature that
> basically amounts to a transient (backward-chained) variant of SPARQL
> CONSTRUCT. For now, you can forward-chain (materialize) data via purpose
> specific SPARQL-CONTRUCTs.
>
> In some cases, you might be able to use SPARQL 1.1 property graphs and
> transitivity to similar effect, but I need to make time to write some
> examples of what's possible etc..
>
>
> Kingsley
>
>
> Best Regards
> Hugh Williams
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> On 29 Jul 2013, at 16:13, Kayhan Uludemirciler <
> kayhan.uludemirci...@sohard.de> wrote:
>
> Hello,
>
> we are trying to do some OWL reasoning based on owl:propertyChainAxiom.
> Since that predicate is not supported, is there a way to define external
> rules,
> so that the built-in reasoner can use them?
>
> Regards
>
> Kayhan Uludemirciler
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> Regards,
>
> Kingsley Idehen
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>
--
Jim McCusker
Programmer Analyst
Krauthammer Lab, Pathology Informatics
Yale School of Medicine
james.mccus...@yale.edu | (203) 785-4436
http://krauthammerlab.med.yale.edu
PhD Student
Tetherless World Constellation
Rensselaer Polytechnic Institute
mcc...@cs.rpi.edu
http://tw.rpi.edu
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