W3C home > Mailing lists > Public > public-lod@w3.org > August 2010

Re: DBpedia endpoint vs LOD endpoint ?

From: Alexandre Passant <alexandre.passant@deri.org>
Date: Tue, 17 Aug 2010 20:59:56 +0100
Cc: Linked Data community <public-lod@w3.org>
Message-Id: <7E21EA4C-7712-4C55-AB21-594D6A24F6DA@deri.org>
To: Patrick van Kleef <pkleef@openlinksw.com>

On 17 Aug 2010, at 17:07, Patrick van Kleef wrote:

> Hi Alexandre,
> 
>> 
>> Running SPARQL queries on the DBpedia endpoint [1] produces different results than queries on the LOD one [2] when restricting to the dbpedia graph.
>> Which one contains the latest datasets ?
>> 
>> NB: Is there a voiD description associated to these endpoints ?
>> 
>> [1] http://dbpedia.org/sparql
>> [2] http://lod.openlinksw.com/sparql
> 
> 
> Both dbpedia.org and lod.openlinksw.com contain the same DBpedia 3.5.1 dataset, however in LOD certain datafiles are loaded in their own graph at this time:

Thanks - but how comes that I have different results on the endpoints while indicating http://dbpedia.org as the default graph in both queries ?
For instance, when running 

SELECT ?o count(?o) as ?c WHERE {
  ?s rdf:type ?o 
} 
ORDER BY DESC(?c)
LIMIT 50

I have

http://dbpedia.org/class/yago/LivingPeople	236951

As a result on the DBpedia endpoint, but not on the LOD one.
Are the Yago mappings loaded in the http://dbpedia.org graph (and not on the Yago one, as you mention below) in the DBpedia endpoint ?

Thanks

Alex.

> 
> bookmashup_links.nt.gz     http://dbpedia.org/bookmashup
> dailymed_links.nt.gz       http://dbpedia.org/dailymed
> dblp_links.nt.gz           http://dbpedia.org/dblp
> diseasome_links.nt.gz      http://dbpedia.org/diseasome
> drugbank_links.nt.gz       http://dbpedia.org/drugbank
> eurostat_links.nt.gz       http://dbpedia.org/eurostat
> factbook_links.nt.gz       http://dbpedia.org/factbook
> flickr_links.nt.gz         http://dbpedia.org/flickr
> freebase_links.nt.gz       http://dbpedia.org/freebase
> geonames_links.nt.gz       http://dbpedia.org/geonames
> gutenberg_links.nt.gz      http://dbpedia.org/gutenberg
> musicbrainz_links.nt.gz    http://dbpedia.org/musicbrainz
> nyt_links.nt.gz            http://dbpedia.org/nyt
> opencyc_links.nt.gz        http://dbpedia.org/opencyc
> revyu_links.nt.gz          http://dbpedia.org/revyu
> sider_links.nt.gz          http://dbpedia.org/sider
> tcm_links.nt.gz            http://dbpedia.org/tcm
> uscensus_links.nt.gz       http://dbpedia.org/uscensus
> wikicompany_links.nt.gz    http://dbpedia.org/wikicompany
> wordnet_links.nt.gz        http://dbpedia.org/wordnet
> yago_links.nt.gz           http://dbpedia.org/yago
> yagoclasses_links.nt.gz    http://dbpedia.org/yagoclasses
> 
> 
> All other dbpedia data files are loaded in http://dbpedia.org
> 
> 
> Best regards,
> 
> Patrick

--
Dr. Alexandre Passant
Digital Enterprise Research Institute
National University of Ireland, Galway
:me owl:sameAs <http://apassant.net/alex> .
Received on Tuesday, 17 August 2010 20:00:33 UTC

This archive was generated by hypermail 2.3.1 : Sunday, 31 March 2013 14:24:28 UTC