Thank you for your quick answer. I have a local DBpedia Live Mirror configured to avoid this kind of timeout and I'm getting equivalent results. Also, I've made a full scan of the results and the numbers are the same.
These following queries make me wonder if there is something wrong: PREFIX dbpedia-owl:<http://dbpedia.org/ontology/> PREFIX yago: <http://dbpedia.org/class/yago/> SELECT COUNT(DISTINCT *) FROM <http://dbpedia.org> WHERE { ?entity rdf:type yago:Person100007846. ?entity rdf:type dbpedia-owl:Person. } Results: http://dbpedia.org/sparql: #902428 http://live.dbpedia.org/sparql: #541107 This one must be executed in WikiData SPARQL endpoint https://query.wikidata.org SELECT (COUNT(?entity) AS ?number_of_people) WHERE { ?entity wdt:P31 wd:Q5. } Results: https://query.wikidata.org: #3254187 I am getting what appears to be a more realistic number of results in WikiData than in DBpedia. Any suggestion about what is happening? Regards, J On 10 September 2016 at 23:43, Krzysztof Węcel <krzysztof.we...@gmail.com> wrote: > I guess it is caused by internal time-out for query calculation. But it > is only a guess based on my work with Virtuoso server in another project. > > > > Best regards, > Krzysztof > > > > On 2016-09-10 22:55, Jordi Palá wrote: >> Hi, >> >> Executing the following SPARQL query I am receiving a huge difference >> in the number of results: >> >> PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> >> PREFIX dbpedia-owl:<http://dbpedia.org/ontology/> >> SELECT COUNT (DISTINCT ?uri) >> FROM <http://dbpedia.org> >> WHERE { >> ?uri rdf:type dbpedia-owl:Person. >> } >> >> The counts for each endpoint are: >> http://dbpedia.org/sparql: #1760734 >> http://live.dbpedia.org/sparql: #936709 >> >> Why such a great difference? >> >> Best regards, >> >> J >> >> ------------------------------------------------------------------------------ >> _______________________________________________ >> DBpedia-developers mailing list >> DBpedia-developers@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/dbpedia-developers >> > ------------------------------------------------------------------------------ _______________________________________________ DBpedia-developers mailing list DBpedia-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/dbpedia-developers
