Hello Juan, all
DBpedia Live had some scaling issues and we had to proxy all our requests
to http://dbpedia-live.openlinksw.com/sparql.
The problem was fixed and we silently removed the proxy for testing 1-2
days before your email.
The issue is described in detail in
https://github.com/dbpedia/extraction-framework/issues/239.
Unfortunately the mirrors (e.g. http://dbpedia-live.openlinksw.com/sparql)
cannot auto heal and the errors remain in the db.
We are currently working on a fix to generate a dbpedia Live dump that will
be loaded on the mirrors and get them back to sync
Sorry for any inconvenience this might caused but we are working on this
Best,
Dimitris
On Fri, Jun 27, 2014 at 10:22 PM, Paul Houle <ontolo...@gmail.com> wrote:
> If you want to run DBpedia queries against your own cloud instance, I
> suggest you try
>
> https://aws.amazon.com/marketplace/pp/B00KQPGYYA/
>
> This has the data pre-loaded and you can be doing queries in ten
> minutes. There are other AMIs out there, but with perfectly matched
> hardware and software, this is the only one to meet the requirements
> for the AWS marketplace.
>
> On Fri, Jun 27, 2014 at 9:52 AM, Rumi <rtsek...@openlinksw.com> wrote:
> > Hi Juan,
> >
> >
> > On 27-Jun-14 9:06 AM, Juan Lucas Domínguez Rubio wrote:
> >
> > charset=unicode" http-equiv=Content-Type>
> > Hello,
> > Very surprising results. The difference is so big that if you choose a
> > random resource from the large result set, then it will probably not
> exist
> > in the small result set. Have you tried?
> >
> > By the way, how do the live endpoints (http://live.dbpedia.org/sparql,
> > http://dbpedia-live.openlinksw.com/sparql) compare to the standard
> endpoit
> > (http://dbpedia.org/sparql) in terms of:
> >
> > - Amount of data
> > - Response time
> > - Availability
> >
> > Anybody knows about that?
> >
> >
> > http://live.dbpedia.org/sparql is currently pointing to
> > http://dbedia-live.openlinksw.com/sparql so contain the same data.
> > This data is updated regularly with the latest changes from Wikipedia
> > itself.
> >
> > Statistics on the update process can be found at
> > http://dbpedia-live.openlinksw.com/live/
> >
> > http://dbpedia.org/sparql/ is based on the 3.9 dataset as published by
> the
> > dbpedia team.
> > It is a static dataset that is refreshed about once a year ...
> >
> > So live.dbpedia.org has the newest data but in some cases dbpedia.org
> has
> > some extra data from other datasets that live will not have.
> >
> > As for Response time and Availability, it is a best effort project, so we
> > make sure it runs most of the time, but we will not give guarantees for
> > uptime and availability.
> >
> > There are rate limiters and ACLs in place to make sure everyone gets a
> fair
> > shot at running queries.
> >
> > Those limits can cause problems for certain kind of analysis as such
> queries
> > may timeout before giving meaningful data back.
> > In such cases we strongly recommend users to setup a version of dbpedia
> in
> > the cloud so they can have the same data but without competing with
> queries
> > from other users.
> >
> > Hope this helps.
> >
> >
> > Best Regards,
> > Rumi Kocis
> >
> >
> > Regards,
> > Juan Lucas
> >
> >
> >
> > ________________________________
> > De: A Shruti [mailto:shruti_atr...@yahoo.com]
> > Enviado el: jue 26/06/2014 20:42
> > Para: dbpedia-discussion@lists.sourceforge.net
> > Asunto: [Dbpedia-discussion] DBpedia Live End points return different
> > datafor same query
> >
> > Hi,
> > I ran the following query against the two DBPedia live endpoints
> mentioned
> > on the DBpedia Live website (http://live.dbpedia.org/) and I get very
> > different results. Does anyone know why this could be happening? Do the
> > graphs "<http://dbpedia.org>" on these end points not contain the same
> data
> > set?
> >
> > Query:
> > PREFIX dbo: <http://dbpedia.org/ontology/>
> > PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
> > PREFIX dbpprop: <http://dbpedia.org/property/>
> >
> > SELECT count(*)
> > FROM <http://dbpedia.org>
> > WHERE
> > { ?person rdf:type dbo:Person .
> > ?person dbpprop:name ?name .
> > ?person dbo:birthDate ?birthDate .
> > ?person dbo:abstract ?abstract .
> > ?person dbo:wikiPageID ?wikiPageID .
> > ?person dbo:wikiPageRevisionID ?wikiPageRevisionID
> > OPTIONAL
> > { ?person dbo:wikiPageModified ?wikiPageModified }
> > OPTIONAL
> > { ?person dbo:wikiPageExtracted ?wikiPageExtracted }
> > FILTER langMatches(lang(?abstract), "en")
> > }
> >
> > Result when run on end point http://live.dbpedia.org/sparql: 3792391
> >
> > Result when run on end point http://dbpedia-live.openlinksw.com/sparql:
> > 63450663
> >
> > Thanks,
> > Shruti
> > ________________________________
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>
> --
> Paul Houle
> Expert on Freebase, DBpedia, Hadoop and RDF
> (607) 539 6254 paul.houle on Skype ontolo...@gmail.com
>
>
> ------------------------------------------------------------------------------
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> Turn processes into business applications with Bonita BPM Community Edition
> Quickly connect people, data, and systems into organized workflows
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------------------------------------------------------------------------------
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http://p.sf.net/sfu/Bonitasoft
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