Hi Andrea,
that makes me think of the Fair use policy that applies to the Virtuoso
instance used for SPARQL queries on DBpedia.
Please check [1], [2] and [3]
[1] http://wiki.dbpedia.org/OnlineAccess
[2] http://sourceforge.net/mailarchive/message.php?msg_id=30412765
[3] http://sourceforge.net/mailarchive/message.php?msg_id=29172307
Regards
Andrea
2013/5/29 Andrea Splendiani <andrea.splendi...@intellileaf.com>
> Hi,
>
> I was trying a bit of queries on DBPedia, but different runs of the
> following queries yield different results! Any explanation ?
>
> best,
> Andrea Splendiani
>
> SELECT distinct * WHERE {
> ?x a <http://dbpedia.org/ontology/City>
> optional {?x <http://dbpedia.org/ontology/populationTotal> ?p}
> optional {?x <http://dbpedia.org/ontology/country> ?y .
> ?y <http://dbpedia.org/property/populationCensus> ?p2}
> filter(?p>?p2)
> }
>
> order by ?p
>
>
>
>
> SELECT distinct * WHERE {
> ?x a <http://dbpedia.org/ontology/City>
> optional {?x <http://dbpedia.org/ontology/populationTotal> ?p}
> optional {?x <http://dbpedia.org/ontology/country> ?y .
> ?y <http://dbpedia.org/property/populationCensus> ?p2}
> filter(?p2<?p)
> }
>
> order by ?p
>
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