Hi Bastian,
the "evil" thing here is easy to explain:
{{Infobox Ort in Argentinien
|Name=Ushuaia
|Provinz=Tierra del Fuego
|Bürgermeister=Federico Sciurano
|URL=http://www.ushuaia.gov.ar/
}}
With a look at the infobox of Ushuaia you can see that the property values
don't contain wikilinks. "Provinz" is mapped to the OntologyProperty:County,
"Bürgermeister" is mapped to OntologyProperty:LeaderName and URL is mapped to
OntologyProperty:WikiPageExternalLink (personally, I would prefer foaf:homepage
btw). All of these three ontology properties are object properties, therefore
they expect a wikilink.
The "Infobox Ort in Argentinien" converts the provinz and the url value into
links, so that at the rendered wikipeda page you found the internal link to
http://de.wikipedia.org/wiki/Tierra_del_Fuego_(Argentinien) and the external
link to the website.
The DBpedia framework extracts the infobox property values and not the
information that is rendered from it, therefore that information is lost.
regards,
paul
-------- Original-Nachricht --------
> Datum: Fri, 1 Apr 2011 12:55:58 +0200
> Von: Bastian Gorholt <[email protected]>
> An: [email protected]
> Betreff: [Dbpedia-discussion] Missing properties after mapping extraction
> Hi everybody,
>
> I encountered another problem after defining new mappings for dbpedia.
> I created a German mapping "Ort in Argentinien":
> http://mappings.dbpedia.org/index.php/Mapping_de:Infobox_Ort_in_Argentinien
>
> As you can see it includes mappings for the properties "Provinz" and
> "URL". Unfortunately when I test the mapping the mapped properties
> province and wikiPageExternalLink are not within the results, at all.
> Furthermore if you have a look at the results of Ushaia and compare
> them with the source text of the corresponding article
> http://de.wikipedia.org/wiki/Ushuaia you will recognize additional
> missing properties: department (Departamento) and leaderName
> (Bürgermeister).
>
> Does anybody spot the root of all evil in this example?
>
> Cheers,
> Bastian
>
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