Hi Riccardo, Thanks for the test data, ee are looking into this issue.
Note the schema and data files you provided where both missing a ">" tag at the end of the "rdf:RDF" element types, which need to be added for them to parse in an RDF/XML validator or load in Virtuoso ... Best Regards Hugh Williams Professional Services OpenLink Software Web: http://www.openlinksw.com Support: http://support.openlinksw.com Forums: http://boards.openlinksw.com/support Twitter: http://twitter.com/OpenLink On 30 Sep 2010, at 00:06, Riccardo Tasso wrote: > Hi Hhugh, > I've tried to reproduce the simplest example testing it still > doesn't work. I'm using Virtuoso Version: 06.01.3127 (installed from > Ubuntu 10.10 repositories). > > This is my schema (schema.rdfs): > > <?xml version="1.0"?> > <rdf:RDF > xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"; > xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#"; > xml:base="http://example.org/schema.rdfs#"; >> > > <rdfs:Class rdf:ID="Person"/> > <rdfs:Class rdf:ID="Administrator"> > <rdfs:subClassOf> > <rdfs:Class rdf:ID="Person"/> > </rdfs:subClassOf> > </rdfs:Class> > > <rdf:Property rdf:ID="hasAdministrator"> > <rdfs:domain rdf:resource="#Organization"/> > <rdfs:range rdf:resource="#Administrator"/> > </rdf:Property> > > </rdf:RDF> > > This is my dataset (data.rdf): > > <?xml version="1.0"?> > <rdf:RDF > xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"; > xmlns:gs="http://example.org/schema.rdfs#"; >> > <gs:Organization rdf:about="http://example.org/data.rdf#o1";> > <gs:hasAdministrator rdf:resource="http://example.org/data.rdf#p5"/> > </gs:Organization> > </rdf:RDF> > > My query is: > > rdfs_rule_set('http://example.org/schema.rdfs', > 'http://example.org/schema.rdfs'); > > SPARQL > define input:inference "http://example.org/schema.rdfs"; > SELECT * > FROM <http://example.org/data.rdfs> > WHERE {<http://example.org/data.rdfs#p5> ?p ?o} > > And I would like to infer that, p5 is an Administrator, (because it is > in the range of hasAdministrator property), then that it is a Person > (simple subClassOf inference, which is working in other examples). > > Thank you for your help, > Riccardo > > On 29/09/2010 15:06, Hugh Williams wrote: >> Hi Riccardo, >> >> Can you provide RDFs data being used for the rule so we can load and attempt >> to recreate in-house ? Please also provide details of the Virtuoso version >> being used (virtuoso-t -?) >> >> Best Regards >> Hugh Williams >> Professional Services >> OpenLink Software >> Web: http://www.openlinksw.com >> Support: http://support.openlinksw.com >> Forums: http://boards.openlinksw.com/support >> Twitter: http://twitter.com/OpenLink >> >> On 29 Sep 2010, at 11:18, Riccardo Tasso wrote: >> >> >>> Dear Hugh, >>> I can't understand why, in my schema it seems not working. >>> These are the steps I followed: >>> >>> 1) Default graph: http://ex.org/schema.rdfs >>> >>> ASK {<http://ex.org/schema.rdfs#hasActiveAdministrator> >>> <http://www.w3.org/2000/01/rdf-schema#range> >>> <http://ex.org/schema.rdfs#ActiveAdministrator>} >>> >>> returns true; >>> >>> 2) rdfs_rule_set('http://ex.org/schema.rdfs', 'http://ex.org/schema.rdfs'); >>> >>> 3) The following query: >>> >>> Default graph: http://ex.org/data.rdf >>> >>> define input:inference "http://ex.org/schema.rdfs"; >>> SELECT * >>> WHERE {?s<http://ex.org/schema.rdfs#hasActiveAdministrator> ?o} >>> >>> returns: >>> >>> <http://ex.org/data.rdf#o1> <http://ex.org/data.rdf#p5>; >>> >>> 4) The following query: >>> >>> Default graph: http://ex.org/data.rdf >>> >>> define input:inference "http://ex.org/schema.rdfs"; >>> SELECT * >>> WHERE {?s<http://ex.org/schema.rdfs#hasActiveAdministrator> ?o. ?o a >>> <http://ex.org/schema.rdfs#ActiveAdministrator>} >>> >>> returns empty set; >>> >>> I expected to have in my result set<http://ex.org/data.rdf#o1> >>> <http://ex.org/data.rdf#p5>; as in the previous query, because the range >>> of hasActiveAdministrator is ActiveAdministrator, also if in my dataset >>> p5 is a Person which is a superclass of ActiveAdministrator. >>> >>> Moreover in documentation >>> (http://docs.openlinksw.com/virtuoso/rdfsparqlrule.html and >>> http://virtuoso.openlinksw.com/dataspace/dav/wiki/Main/VOSVirtuoso6FAQ#What%20inferencing%20is%20supported?) >>> there is no mention of domain and ranged inferencing. Maybe I missed >>> something... >>> >>> Best regards, >>> Riccardo >>> >>> On 29/09/2010 02:44, Hugh Williams wrote: >>> >>>> Hi Ricardo, >>>> >>>> Yes, Virtuoso does support RDFS Domain and Ranged inferencing, have to >>>> read the Virtuoso inferencing documentation: >>>> >>>> http://docs.openlinksw.com/virtuoso/rdfsparqlrule.html >>>> >>>> Best Regards >>>> Hugh Williams >>>> Professional Services >>>> OpenLink Software >>>> Web: http://www.openlinksw.com >>>> Support: http://support.openlinksw.com >>>> Forums: http://boards.openlinksw.com/support >>>> Twitter: http://twitter.com/OpenLink >>>> >>>> On 28 Sep 2010, at 23:40, Riccardo Tasso wrote: >>>> >>>> >>>> >>>>> Hello, >>>>> I'm interested in using Virtuoso server as a triple store. My >>>>> question is if does it support RDFS domain and range inference, because >>>>> this has some relevance to my use case. >>>>> >>>>> I didn't found any trace of this kind of inference inside Virtuoso >>>>> documentation, neither in the mailing list, but I really would like to >>>>> be sure. >>>>> >>>>> Thank you, >>>>> Riccardo >>>>> >>>>> ------------------------------------------------------------------------------ >>>>> Start uncovering the many advantages of virtual appliances >>>>> and start using them to simplify application deployment and >>>>> accelerate your shift to cloud computing. >>>>> http://p.sf.net/sfu/novell-sfdev2dev >>>>> _______________________________________________ >>>>> Virtuoso-users mailing list >>>>> Virtuoso-users@lists.sourceforge.net >>>>> https://lists.sourceforge.net/lists/listinfo/virtuoso-users >>>>> >>>>> >>>> >>> >>> ------------------------------------------------------------------------------ >>> Start uncovering the many advantages of virtual appliances >>> and start using them to simplify application deployment and >>> accelerate your shift to cloud computing. >>> http://p.sf.net/sfu/novell-sfdev2dev >>> _______________________________________________ >>> Virtuoso-users mailing list >>> Virtuoso-users@lists.sourceforge.net >>> https://lists.sourceforge.net/lists/listinfo/virtuoso-users >>> >> > > > ------------------------------------------------------------------------------ > Start uncovering the many advantages of virtual appliances > and start using them to simplify application deployment and > accelerate your shift to cloud computing. > http://p.sf.net/sfu/novell-sfdev2dev > _______________________________________________ > Virtuoso-users mailing list > Virtuoso-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/virtuoso-users
