Jürgen Jakobitsch wrote: > > predication : in a couple of years, everything will be rdf - but vocabularies > will only be understood > in limited geographical areas - gone be the vision of global > communication. > > http://dbpedia.org/page/New_York_City -> dbpprop:latd (xsd:integer) > http://dbpedia.org/page/Paris -> dbpprop:latLong -> > dbpedia:Paris/latLong/coord -> dbpprop:coordProperty (some xsd:integer - not > interpretable) > http://dbpedia.org/page/Berlin -> dbpprop:latD -> (xsd:double) > http://dbpedia.org/page/Oslo -> dbpprop:latDeg -> (xsd:integer) > http://dbpedia.org/page/Babylon -> geo:lat -> (xsd:float) >
Personally, I'd disregard any dbpprop predicates. These were generated with the old infobox extractor and are indeed rather messy. The new MappingBasedExtractor is based on an ontology which actually specifies a formal hierachy and valid data types etc. Regarding "global communication": there needs to be some convention or formalisation of vocabularies used there. Ontologies can do that for you. For example, geo:lat is defined here: http://www.w3.org/2003/01/geo/wgs84_pos#lat Multiple data sets can be linked: http://linkeddata.org/ In particular, this seems to be a good tutorial: http://www4.wiwiss.fu-berlin.de/bizer/pub/LinkedDataTutorial/ I'm not sure if I understand your point of "vocabularies will only be understood in limited geographical areas" - do you say that because all those cities have different properties to express their geographical location? Regards, Michael ------------------------------------------------------------------------------ Enter the BlackBerry Developer Challenge This is your chance to win up to $100,000 in prizes! For a limited time, vendors submitting new applications to BlackBerry App World(TM) will have the opportunity to enter the BlackBerry Developer Challenge. See full prize details at: http://p.sf.net/sfu/blackberry _______________________________________________ Dbpedia-discussion mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/dbpedia-discussion
