Hi Burak,
As you may know, the extraction framework uses Wikipedia articles and a
mapping wiki to produce the data you see.
If you go to our mappings wiki and search for "nationality", you will find
the corresponding ontology property page. Using the "what links here" link
on the left-side menu [1], you can find that the templates "office holder"
and "president" are two of the templates that map to that ontology
property. Inside those mapping pages you will find a reference to the
infobox field "nationality".
Looking at the source article [4], I can't see the field "nationality"
anymore (perhaps because an American president is obviously born American)
[5]. But the field was there in October 2010, for example.
So in order to fix this you might have to work with the source (Wikipedia),
rather than DBpedia.
[1]
http://mappings.dbpedia.org/index.php/Special:WhatLinksHere/OntologyProperty:Nationality
[2] http://mappings.dbpedia.org/index.php/Mapping_en:Infobox_President
[3] http://mappings.dbpedia.org/index.php/Mapping_en:Infobox_officeholder
[4]
http://en.wikipedia.org/w/index.php?title=Dwight_D._Eisenhower&action=edit
[5] http://en.wikipedia.org/wiki/Natural-born-citizen_clause
[6]
http://en.wikipedia.org/w/index.php?title=Dwight_D._Eisenhower&action=edit&oldid=393069420
Cheers,
Pablo
On Wed, Oct 3, 2012 at 9:57 AM, Burak Yönyül <[email protected]> wrote:
> Hello,
>
>
> Result to my dbpedia query :
> SELECT ?president ?party WHERE {
> ?president <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <
> http://dbpedia.org/ontology/President> .
> ?president <http://dbpedia.org/ontology/nationality> <
> http://dbpedia.org/resource/United_States> .
> ?president <http://dbpedia.org/ontology/party> ?party . }
>
> doesn't contain
> <http://dbpedia.org/resource/Dwight_D._Eisenhower<http://dbpedia.org/page/Dwight_D._Eisenhower>>
> resource.
> Because this resource has not anymore <
> http://dbpedia.org/resource/United_States<http://dbpedia.org/page/United_States>>
> property.
> This query is part of FedBench query <
> http://iwb.fluidops.com:7879/resource/fbench:q/cross-domain_3> for
> evaluation. Could you add this property again to this resource plesase ?
>
> Best regards,
> Burak YÖNYÜL
>
>
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--
---
Pablo N. Mendes
http://pablomendes.com
Events: http://wole2012.eurecom.fr
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Deploy New Relic app performance management and know exactly
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