Jürgen Jakobitsch wrote:

> now what sense does rdf make, if every organization concerned
> with geonames used rdf to build up their own properties
> of longitude and latitude (these are just samples).
> some call them long, lon, l, longDegrees, lonD, lond, longD, longDeg, lDeg, 
> ...
> 

That simply is a mapping problem. DBpedia should (as in "defined in 
their ontology") use RDF Schema for geo locations, ie geo:lat and 
friends. If there is no such assertion for any given entity while there 
are dbpprob:long (or whatever) predicates pointing to a spatial 
location, this would be considered a bug - please report it.

Georgi Kobilarov wrote a blog posting about this problem and how the 
MappingBasedExtractor solved it: 
http://blog.georgikobilarov.com/2008/10/dbpedia-rethinking-wikipedia-infobox-extraction/

Simply put, they're mapping all those long, lon, l, longDegrees, lonD 
etc to RDF Schema.

Does this clear up things a bit?


Regards,

Michael

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