Hi all,
I just joined this forum, and this is my first post. I posted a question over
at:
http://answers.semanticweb.com/questions/12198/why-do-the-dbpedia-dumps-contain-data-not-found-in-the-endpoint
no luck with a response yet. I am hoping for help here now. Essentially I am
finding a lot of data in the dbpedia data exports that is not in the live
endpoints. See the above post for one example. Another example query comes
from the relFinder tool, using one of the examples. I modified to just return
a count, rather than first 10 results.
SELECT COUNT(*)
WHERE { <http://dbpedia.org/resource/Albert_Einstein> ?pf1 ?middle .
<http://dbpedia.org/resource/Stuttgart> ?ps1 ?os1 .
?os1 ?ps2 ?middle .
FILTER ((?pf1 != <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> ) && (?pf1
!= <http://www.w3.org/2004/02/skos/core#subject> ) && (?pf1 !=
<http://dbpedia.org/property/wikiPageUsesTemplate> ) && (?pf1 !=
<http://dbpedia.org/property/wordnet_type> ) && (?pf1 !=
<http://dbpedia.org/property/wikilink> ) && (?pf1 !=
<http://www.w3.org/2002/07/owl#sameAs> ) && (?pf1 !=
<http://purl.org/dc/terms/subject> ) && (?ps1 !=
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type> ) && (?ps1 !=
<http://www.w3.org/2004/02/skos/core#subject> ) && (?ps1 !=
<http://dbpedia.org/property/wikiPageUsesTemplate> ) && (?ps1 !=
<http://dbpedia.org/property/wordnet_type> ) && (?ps1 !=
<http://dbpedia.org/property/wikilink> ) && (?ps1 !=
<http://www.w3.org/2002/07/owl#sameAs> ) && (?ps1 !=
<http://purl.org/dc/terms/subject> ) && (?ps2 !=
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type> ) && (?ps2 !=
<http://www.w3.org/2004/02/skos/core#subject> ) && (?ps2 !=
<http://dbpedia.org/property/wikiPageUsesTemplate> ) && (?ps2 !=
<http://dbpedia.org/property/wordnet_type> ) && (?ps2 !=
<http://dbpedia.org/property/wikilink> ) && (?ps2 !=
<http://www.w3.org/2002/07/owl#sameAs> ) && (?ps2 !=
<http://purl.org/dc/terms/subject> ) && (!isLiteral(?middle)) && (?middle !=
<http://dbpedia.org/resource/Albert_Einstein> ) && (?middle !=
<http://dbpedia.org/resource/Stuttgart> ) && (?middle != ?os1 ) &&
(!isLiteral(?os1)) && (?os1 != <http://dbpedia.org/resource/Albert_Einstein> )
&& (?os1 != <http://dbpedia.org/resource/Stuttgart> ) && (?os1 != ?middle ) ). }
in dbpedia this produces 6 results. In the data exports, loaded into a triple
store, it returns 396 results.
Can someone guide me as to what portion of the dbpedia data is loaded into the
SPARQL endpoint?
Thanks,
Tim
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