Hi, I don't think any work has been done on this. I don't know if any of the regular developers have time, but DBpedia is an open source project, so anybody is welcome to fork it, write some code and send a pull request. :-)
The datatypes are not listed on the mappings wiki but in a Scala class [1]. Nonetheless, they should be dereferencable, and they should be in the ontology. Here's what should be done: 1. Modify OntologyOWLWriter.scala [2] to also write the datatypes to the OWL file. I guess this would take between two and twenty hours. 2. The OpenLink guys load the new OWL file into the dbpedia.org endpoint and update the Virtuoso settings to make the datatypes dereferencable. 3. In the long run, datatypes should be editable on the mappings wiki. This will be more work, probably between 5 and 15 days. Maybe a Google Summer of Code project. JC [1] https://github.com/dbpedia/extraction-framework/blob/master/core/src/main/scala/org/dbpedia/extraction/ontology/OntologyDatatypes.scala#L127 [2] https://github.com/dbpedia/extraction-framework/blob/master/core/src/main/scala/org/dbpedia/extraction/ontology/io/OntologyOWLWriter.scala On 22 March 2013 16:09, Christoph Lauer <[email protected]> wrote: > Hello everyone, > Any progress on the issue? I have a problem which I think is related to > this. I was looking for the property netIncome [1], which has the range > xsd:double. However, values of this property (e.g. from Apple [2]) are > marked as usDollar, meaning that a query gets 0 results if I add a > datatype filter, which searches only for xsd:doble values of netIncome. > > Cheers, > Christoph > > [1] http://dbpedia.org/ontology/netIncome > [2] http://dbpedia.org/page/Apple_Inc. > > Am 14.12.2012 14:21, schrieb Dimitris Kontokostas: >> It is a bug because it is not dereferencable and not in the Ontology:) >> >> Dimitris >> >> ---- >> Send from my mobile >> >> Στις 14 Δεκ 2012 3:01 μ.μ., ο χρήστης "Heiko Paulheim" >> <[email protected] <mailto:[email protected]>> έγραψε: >> >> Dear Dimitris, >> >> I'm a bit puzzled by your answer: if it is an existing datatype, >> then what do you mean by "I guess it is a bug"? Is it a bug that it >> is used in the n3, or that its URI cannot be resolved? >> >> Best, >> Heiko >> >> >> Am 14.12.2012 11:07, schrieb Dimitris Kontokostas: >>> Hi Heiko, >>> >>> Thanks for the report, this is an existing datatype so I guess it >>> is a bug >>> http://mappings.dbpedia.org/index.php/DBpedia_Datatypes >>> >>> we'll try to fix this asap >>> >>> Best, >>> Dimitris >>> >>> >>> >>> On Fri, Dec 14, 2012 at 11:47 AM, Heiko Paulheim >>> <[email protected] <mailto:[email protected]>> >>> wrote: >>> >>> Dear DBpedians, >>> >>> occasionally, we have encountered a datatype called >>> http://dbpedia.org/datatype/usDollar, e.g., here [1]. This >>> datatype is >>> neither represented by a dereferencable URI, nor defined in >>> the DBpedia >>> ontology. >>> >>> Is that a bug or a feature? E.g., is there a list of >>> definitions of >>> non-standard datatypes used in DBpedia? >>> >>> Best, >>> Heiko >>> >>> [1] http://dbpedia.org/data/Gone_with_the_Wind_(film).n3 >>> <http://dbpedia.org/data/Gone_with_the_Wind_%28film%29.n3> >>> >>> -- >>> Dr. Heiko Paulheim >>> Knowledge Engineering Group >>> Technische Universität Darmstadt >>> Phone: +49 6151 16 6634 <tel:%2B49%206151%2016%206634> >>> Fax: +49 6151 16 5482 <tel:%2B49%206151%2016%205482> >>> http://www.ke.tu-darmstadt.de/staff/heiko-paulheim >>> >>> >>> >>> ------------------------------------------------------------------------------ >>> LogMeIn Rescue: Anywhere, Anytime Remote support for IT. Free >>> Trial >>> Remotely access PCs and mobile devices and provide instant support >>> Improve your efficiency, and focus on delivering more >>> value-add services >>> Discover what IT Professionals Know. Rescue delivers >>> http://p.sf.net/sfu/logmein_12329d2d >>> _______________________________________________ >>> Dbpedia-discussion mailing list >>> [email protected] >>> <mailto:[email protected]> >>> https://lists.sourceforge.net/lists/listinfo/dbpedia-discussion >>> >>> >>> >>> >>> -- >>> Kontokostas Dimitris >> >> -- >> Dr. Heiko Paulheim >> Knowledge Engineering Group >> Technische Universität Darmstadt >> Phone:+49 6151 16 6634 <tel:%2B49%206151%2016%206634> >> Fax:+49 6151 16 5482 <tel:%2B49%206151%2016%205482> >> http://www.ke.tu-darmstadt.de/staff/heiko-paulheim >> >> >> >> ------------------------------------------------------------------------------ >> LogMeIn Rescue: Anywhere, Anytime Remote support for IT. Free Trial >> Remotely access PCs and mobile devices and provide instant support >> Improve your efficiency, and focus on delivering more value-add services >> Discover what IT Professionals Know. Rescue delivers >> http://p.sf.net/sfu/logmein_12329d2d >> >> >> >> _______________________________________________ >> Dbpedia-discussion mailing list >> [email protected] >> https://lists.sourceforge.net/lists/listinfo/dbpedia-discussion >> > > ------------------------------------------------------------------------------ > Everyone hates slow websites. So do we. > Make your web apps faster with AppDynamics > Download AppDynamics Lite for free today: > http://p.sf.net/sfu/appdyn_d2d_mar > _______________________________________________ > Dbpedia-discussion mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/dbpedia-discussion ------------------------------------------------------------------------------ Everyone hates slow websites. So do we. 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