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 Professional Services OpenLink Software, Inc. // http://www.openlinksw.com/ Weblog -- http://www.openlinksw.com/blogs/ LinkedIn -- http://www.linkedin.com/company/openlink-software/ Twitter -- http://twitter.com/OpenLink Google+ -- http://plus.google.com/100570109519069333827/ Facebook -- http://www.facebook.com/OpenLinkSoftware Universal Data Access, Integration, and Management Technology ProvidersOn 29 Jul 2013, at 16:13, Kayhan Uludemirciler <kayhan.uludemirci...@sohard.de <mailto: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 Softwareentwicklung SOHARD Software GmbH Würzburger Str. 197 90766 Fürth Phone: +49 (0) 911 97341-568E-Mail: kayhan.uludemirci...@sohard.de <mailto:kayhan.uludemirci...@sohard.de>www.sohard.de <http://www.sohard.de> Geschäftsführer: Peter Feltens, Sebastian Schnitzenbaumer Sitz der Gesellschaft: Fürth Registergericht: Amtsgericht Fürth; HRB 11478 USt.-Id.-Nr.: DE 2 60 32 91 34 Steuernummer: 218/137/60174 ------------------------------------------------------------------------------ See everything from the browser to the database with AppDynamics Get end-to-end visibility with application monitoring from AppDynamics Isolate bottlenecks and diagnose root cause in seconds. Start your free trial of AppDynamics Pro today! http://pubads.g.doubleclick.net/gampad/clk?id=48808831&iu=/4140/ostg.clktrk _______________________________________________ Virtuoso-users mailing list Virtuoso-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/virtuoso-users------------------------------------------------------------------------------ Get your SQL database under version control now! Version control is standard for application code, but databases havent caught up. So what steps can you take to put your SQL databases under version control? Why should you start doing it? Read more to find out. http://pubads.g.doubleclick.net/gampad/clk?id=49501711&iu=/4140/ostg.clktrk _______________________________________________ Virtuoso-users mailing list Virtuoso-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/virtuoso-users
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