Thanks, Lorenz!That allows me to get around it.
Jaana
Date: Thu, 31 Jul 2014 21:52:39 +0200
From: buehm...@informatik.uni-leipzig.de
To: virtuoso-users@lists.sourceforge.net
Subject: Re: [Virtuoso-users] DBpedia SERVICE queries acting unexpectedly
The labels are contained in the DBpedia ontology.
Lorenz
On 07/31/2014 12:27 PM, Jaana Takis
wrote:
Hi Hugh,
this does not work unfortunately, I get the exact same
issue running your query on my local Virtuoso sparql endpoint:
p
label
http://purl.org/dc/terms/subject
"Subject"@en
http://dbpedia.org/ontology/PopulatedPlace/areaTotal
"Subject"@en
http://dbpedia.org/ontology/abstract
"Subject"@en
http://dbpedia.org/ontology/areaCode
"Subject"@en
In fact, that is the reason why I ended downloading the
mapping-based properties DBpedia data set
http://wiki.dbpedia.org/Downloads39#h283-1 hoping that it
would solve things but there are no property labels there.
Maybe there are other data sets I could download that would
solve this issue but I haven't been able to identify one.
I really don't get it why I have this issue. It is very
puzzling :/ Any ideas?
Thanks!
Jaana
Subject: Re: [Virtuoso-users]
DBpedia SERVICE queries acting unexpectedly
From: hwilli...@openlinksw.com
Date: Thu, 31 Jul 2014 02:52:39 +0100
CC: virtuoso-users@lists.sourceforge.net
To: jaana...@hotmail.com
Hi Janna,
What datasets are loaded in your local Virtuoso
instance as I see you reference the <http://dbpedia.org> graph
in it
, so do you already have some DBpedia datasets loaded ?
Note the query you are running locally is not the
same as what you are running against the canonical
dbpedia endpoint ie http://dbpedia.org/sparql,
which should be:
SELECT distinct ?p ?label
WHERE
{
SERVICE <http://dbpedia.org/sparql>
{<http://dbpedia.org/resource/Tallinn>
?p ?o . ?p rdfs:label ?label . FILTER (lang(?label) =
'en') }
}
limit 10
ie all triple patterns should be in the "SERVICE"
part for remote execution, unless you have local DBpedia
data load in which case I would suggest it does not
contain the expected data possibly ?
See following live example from our LOD Server that
works:
http://lod.openlinksw.com/sparql/?default-graph-uri=&qtxt=SELECT+distinct+%3Fp+%3Flabel+%0D%0AWHERE%0D%0A%7B%0D%0A++++%0D%0A++++SERVICE+%3Chttp%3A%2F%2Fdbpedia.org%2Fsparql%3E+%7B%3Chttp%3A%2F%2Fdbpedia.org%2Fresource%2FTallinn%3E+%3Fp+%3Fo+.+%3Fp+rdfs%3Alabel+%3Flabel+.+FILTER+%28lang%28%3Flabel%29+%3D+%27en%27%29+%7D%0D%0A%7D%0D%0Alimit+10&format=text%2Fhtml&CXML_redir_for_subjs=121&CXML_redir_for_hrefs=&timeout=30000&debug=on
Short URL: http://bit.ly/XhuK2o
Best Regards
Hugh Williams
Professional Services
OpenLink Software, Inc. //
http://www.openlinksw.com/
Weblog -- http://www.openlinksw.com/blogs/
LinkedIn --
http://www.linkedin.com/company/openlink-software/
Twitter -- http://twitter.com/OpenLink
Google+ --
http://plus.google.com/100570109519069333827/
Facebook --
http://www.facebook.com/OpenLinkSoftware
Universal Data Access,
Integration, and Management
Technology Providers
On 30 Jul 2014, at 17:30, Jaana Takis <jaana...@hotmail.com>
wrote:
Hi!
For a few days now I have tried to make the
following query work on my local Open Source
Virtuoso and it does not produce the expected
results, I am at loss as what to do!
SELECT distinct ?p ?label FROM <http://dbpedia.org>
WHERE
{
<http://dbpedia.org/resource/Tallinn>
?p ?o .
SERVICE <http://DBpedia.org/sparql>
{ ?p rdfs:label ?label . FILTER
(lang(?label) = 'en') }
}
limit 10
When I
execute this then I get repetitive labels
and I don't understand why:
p
label
http://dbpedia.org/ontology/areaCode
"area code"@en
http://dbpedia.org/ontology/elevation
"area code"@en
http://dbpedia.org/ontology/isPartOf
"area code"@en
http://dbpedia.org/ontology/leaderParty
"area code"@en
Yet, when I run a similar kind of query on
DBpedia, the output is as expected:
p
label
dbpedia:ontology/PopulatedPlace/areaTotal
"area total (km2)"@en
dbpedia:ontology/abstract
"has abstract"@en
dbpedia:ontology/areaCode
"area code"@en
dbpedia:ontology/areaTotal
"area total (m2)"@en
The local graph I have here is a DBpedia
dump of mappings but it really does not seem
to matter in this case, I could run both the
queries remotely and I still get repetitive
labels.
What am I missing here?
Any help much appreciated!
Jaana
------------------------------------------------------------------------------
Infragistics Professional
Build stunning WinForms apps today!
Reboot your WinForms applications with our
WinForms controls.
Build a bridge from your legacy apps to the
future.
http://pubads.g.doubleclick.net/gampad/clk?id=153845071&iu=/4140/ostg.clktrk_______________________________________________
Virtuoso-users mailing list
Virtuoso-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/virtuoso-users
------------------------------------------------------------------------------
Infragistics Professional
Build stunning WinForms apps today!
Reboot your WinForms applications with our WinForms controls.
Build a bridge from your legacy apps to the future.
http://pubads.g.doubleclick.net/gampad/clk?id=153845071&iu=/4140/ostg.clktrk
_______________________________________________
Virtuoso-users mailing list
Virtuoso-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/virtuoso-users
------------------------------------------------------------------------------
Infragistics Professional
Build stunning WinForms apps today!
Reboot your WinForms applications with our WinForms controls.
Build a bridge from your legacy apps to the future.
http://pubads.g.doubleclick.net/gampad/clk?id=153845071&iu=/4140/ostg.clktrk
_______________________________________________
Virtuoso-users mailing list
Virtuoso-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/virtuoso-users
------------------------------------------------------------------------------
Infragistics Professional
Build stunning WinForms apps today!
Reboot your WinForms applications with our WinForms controls.
Build a bridge from your legacy apps to the future.
http://pubads.g.doubleclick.net/gampad/clk?id=153845071&iu=/4140/ostg.clktrk
_______________________________________________
Virtuoso-users mailing list
Virtuoso-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/virtuoso-users
