Hi Alexandru, > It would be quite nice to get an answer about this issue from > someone at > OpenLink since it seems that they do read this mailing list and this > is > a known issue. > BTW I need to correct the title of this mail. The issue is not with > the > DBpedia VAD, it is with Virtuoso itself since the SPARQL endpoint > returns the same garbled results. So at this time the Virtuoso IRI > handling is broken at least when using SPARQL .
I have passed on your observation to the Virtuoso development team and i am awaiting an answer. Patrick --- OpenLink Software > On 10/18/2011 09:29 AM, Dimitris Kontokostas wrote: >> Hi Alexandru, >> >> This is a known issue and we reported it to virtuoso ~9 months ago. >> Unfortunatelly we use debian packages for our installation which >> usually are a little behind from the latest releases, so we can't say >> if it is fixed >> >> But, IRIs cannot be 100% serialized in RDF/XML. >> So even if Virtuoso fixes the encoding, the rdf might still be >> invalid >> >> Regards, >> Dimitris >> >> On Mon, Oct 17, 2011 at 6:42 PM, Alexandru Todor<[email protected] >> > wrote: >>> Hi, >>> >>> I've recieved a mail a couple of weeks ago from some users of the >>> German >>> DBpedia a few weeks ago who where reporting that they weren't >>> getting >>> any results when querying the endpoint for URIs that contained >>> German >>> umlauts(or any other utf8 characters). I reported the issue to the >>> Jena >>> mailing list and they fixed it, but in the process we also >>> discovered a >>> bug with Virtuoso. >>> >>> There is a problem with the IRI encoding in the DBpedia >>> Internationalization VAD. Namely when querying the SPARQL endpoint >>> the >>> encoding of the IRIs in RDF/XML is garbled. The issue can be found >>> in >>> both Greek and German endpoints. >>> >>> For example: http://de.dbpedia.org/data/Berlin-Dahlem.rdf , in the >>> first >>> XML lines yo you will notice things linke >>> http://de.dbpedia.org/resource/Königin-Luise-Stiftung instead of >>> http://de.dbpedia.org/resource/Königin-Luise-Stiftung or >>> http://de.dbpedia.org/resource/Gernot_Michael_Müller instead of >>> http://de.dbpedia.org/resource/Gernot_Michael_Müller. You will >>> notice >>> simmilar issues if you look at this resource from the Greek DBpedia: >>> http://el.dbpedia.org/data/Αλέξανδρος_ο_Μέγας.rdf . >>> >>> This problems is that when querying the Internationalization >>> Endpoints >>> not only with Jena but with any other SPARQL client, the user is >>> going >>> to getting garbled IRIs if they contain UTF8 characters. >>> >>> >>> Kind Regards, >>> Alexandru Todor >>> >>> >>> ------------------------------------------------------------------------------ >>> All the data continuously generated in your IT infrastructure >>> contains a >>> definitive record of customers, application performance, security >>> threats, fraudulent activity and more. Splunk takes this data and >>> makes >>> sense of it. Business sense. IT sense. Common sense. >>> http://p.sf.net/sfu/splunk-d2d-oct >>> _______________________________________________ >>> Dbpedia-discussion mailing list >>> [email protected] >>> https://lists.sourceforge.net/lists/listinfo/dbpedia-discussion >>> >> >> > > > ------------------------------------------------------------------------------ > All the data continuously generated in your IT infrastructure > contains a > definitive record of customers, application performance, security > threats, fraudulent activity and more. Splunk takes this data and > makes > sense of it. Business sense. IT sense. Common sense. > http://p.sf.net/sfu/splunk-d2d-oct > _______________________________________________ > Dbpedia-discussion mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/dbpedia-discussion ------------------------------------------------------------------------------ All the data continuously generated in your IT infrastructure contains a definitive record of customers, application performance, security threats, fraudulent activity and more. Splunk takes this data and makes sense of it. Business sense. IT sense. Common sense. http://p.sf.net/sfu/splunk-d2d-oct _______________________________________________ Dbpedia-discussion mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/dbpedia-discussion
