Hi,
thanks for the reply.
>> * We can easily get >15000 projects from freebase [1], even along
>> with
>> Wikipedia keys, but which of the multiple keys are the ones used in
>> dbpedia? Is there any fixed rule/heuristics which to use?
>
> What exactly do you mean by "key"? DBpedia URIs correspond to
> Wikipedia
> articles, i.e. http://dbpedia.org/resource/$something contains
> information about the object described at
> http://en.wikipedia.org/wiki/$something. We took care not to change
> the
> Wikpedia article URIs.
>
> I don't know how Freebase handles it. There was some discussion that
> the
> Freebase guys want to publish their data as Linked Data and
> interlink it
> with DBpedia, but as far as I know that has not happened yet. Freebase
> does have dumps, which (they claim) can be easily converted to RDF.
> That
> might be a starting point.
OK, so I will ask the freebase mailing list how they handle this.
>> * The dbpedia data on buildings seems richer - but I can't find out
>> how to retrieve ALL architectural projects in dbpedia. I tried [2]
>> athttp://dbpedia.org/sparql
>> , but it stops athttp://dbpedia.org/resource/Beijing_Zoo
>
> There is a limit of 1000 results on the SPARQL endpoint. So either you
> have to use limit and offset or you just download the complete YAGO
> file
> and grep for http://dbpedia.org/class/yago/Building102913152. The data
> set is called "YAGO classes" and can be downloaded from the DBpedia
> download page [1].
OK, thanks. I found 12.627 buildings in the Yago classes file, quite
nice.
>> * Also, I find it hard to find out which properties buildings
>> typically have in dbpedia. How do you do that? Just inspect lots of
>> instances? Any tricks there?
>
> Basically yes. They are available as Linked Data, e.g. you can just
> call
> http://dbpedia.org/resource/Beijing_Zoo in your browser. The available
> topics are determined by Wikipedia and in particular the infoboxes.
> The
> Beijing_Zoo page [2] does not have an infobox, so you won't get much
> building specific information there. You could watch out for common
> Wikipedia infoboxes related to buildings (if those exist) to find
> typical properties.
I feared so :) Thanks!
Beste Grüße,
mo
°
Moritz Stefaner
+49 179 - 525 21 26
http://der-mo.net
http://well-formed-data.net
°
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