Hi, 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 .
Kind Regards Alexandru 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
