Thank you for the responses, these should be useful.
Grant Smith
816-588-2004
________________________________
From: Kingsley Idehen [[email protected]]
Sent: Wednesday, March 06, 2013 6:15 AM
To: [email protected]
Subject: Re: [Dbpedia-discussion] owl:sameAs values inconsistent with internal
resource URIs
On 3/6/13 5:08 AM, Mohamed Morsey wrote:
Hi Grant,
in addition to what Ben mentioned, you can still get the required results using
the following query:
PREFIX dbpedia-owl: <http://dbpedia.org/ontology/><http://dbpedia.org/ontology/>
PREFIX dbpprop: <http://dbpedia.org/property/><http://dbpedia.org/property/>
PREFIX drugbank:
<http://wifo5-04.informatik.uni-mannheim.de/drugbank/resource/drugbank/><http://wifo5-04.informatik.uni-mannheim.de/drugbank/resource/drugbank/>
PREFIX rdf:
<http://www.w3.org/1999/02/22-rdf-syntax-ns#><http://www.w3.org/1999/02/22-rdf-syntax-ns#>
PREFIX rdfs:
<http://www.w3.org/2000/01/rdf-schema#><http://www.w3.org/2000/01/rdf-schema#>
PREFIX owl: <http://www.w3.org/2002/07/owl#><http://www.w3.org/2002/07/owl#>
SELECT * WHERE{
{
SELECT * WHERE {
SERVICE
<http://wifo5-04.informatik.uni-mannheim.de/drugbank/sparql><http://wifo5-04.informatik.uni-mannheim.de/drugbank/sparql>
{?modifiedDrug rdfs:label "Lepirudin"; drugbank:affectedOrganism
?affectedOrganism}
}
}.
{
SELECT IRI(REPLACE(STR(?drug),
"http://www4.wiwiss.fu-berlin.de";<http://www4.wiwiss.fu-berlin.de>,
"http://wifo5-04.informatik.uni-mannheim.de";<http://wifo5-04.informatik.uni-mannheim.de>))
AS ?modifiedDrug WHERE {
SERVICE <http://dbpedia.org/sparql><http://dbpedia.org/sparql>
{?a rdfs:label "Lepirudin"@en; owl:sameAs ?drug;
dbpprop:routesOfAdministration ?routes.}
}
}
}
Great SPARQL-FED utility showcase :-)
Kingsley
Hope it helps.
On 03/06/2013 10:16 AM, Ben Companjen wrote:
Hi Grant,
When I click the link
<http://www4.wiwiss.fu-berlin.de/drugbank/resource/drugs/DB00001><http://www4.wiwiss.fu-berlin.de/drugbank/resource/drugs/DB00001>
I
get redirected to
<http://wifo5-03.informatik.uni-mannheim.de/drugbank/resource/drugs/DB00001><http://wifo5-03.informatik.uni-mannheim.de/drugbank/resource/drugs/DB00001>
(3 instead of 4), so it looks like the "resource" URIs are not stable.
There is no <wifo5-03...> owl:sameAs <wifo5-04...> either so the
resources could be different. The redirect URI should be stable ("Cool
URIs don't change.").
In the page that is returned, I see owl:sameAs to DBpedia drugs, but
those URIs include "www." which I believe is incorrect.
I agree that shared URIs increase the value of different descriptions,
but the Drugbank could use some changes too :)
Besides, DBpedia extracts information from Wikipedia (only, AFAIK), so
changes should be made there. I hope I made my point that the Drugbank
uses inconsistent URIs, so if you do change Wikipedia, there may be
people not agreeing to your edits for this reason.
Regards,
Ben
On 5 March 2013 23:57, Smith, Grant M. (UMKC-Student)
<[email protected]><mailto:[email protected]> wrote:
> PREFIX dbpedia-owl:
> <http://dbpedia.org/ontology/><http://dbpedia.org/ontology/>
> PREFIX dbpprop: <http://dbpedia.org/property/><http://dbpedia.org/property/>
> PREFIX drugbank:
> <http://wifo5-04.informatik.uni-mannheim.de/drugbank/resource/drugbank/><http://wifo5-04.informatik.uni-mannheim.de/drugbank/resource/drugbank/>
> PREFIX rdf:
> <http://www.w3.org/1999/02/22-rdf-syntax-ns#><http://www.w3.org/1999/02/22-rdf-syntax-ns#>
> PREFIX rdfs:
> <http://www.w3.org/2000/01/rdf-schema#><http://www.w3.org/2000/01/rdf-schema#>
> PREFIX owl: <http://www.w3.org/2002/07/owl#><http://www.w3.org/2002/07/owl#>
> SELECT * WHERE{
> {
> SELECT * WHERE {
> SERVICE
> <http://wifo5-04.informatik.uni-mannheim.de/drugbank/sparql><http://wifo5-04.informatik.uni-mannheim.de/drugbank/sparql>
> {?drug rdfs:label "Lepirudin"; drugbank:affectedOrganism ?affectedOrganism}}
> } .
> {
> SELECT ?drug ?routes WHERE {
> SERVICE <http://dbpedia.org/sparql><http://dbpedia.org/sparql>
> {?a rdfs:label "Lepirudin"@en; owl:sameAs ?drug;
> dbpprop:routesOfAdministration ?routes}}
> }}
>
> This query returns no results. However, each subquery within it does return
> results. The results of each subquery are not joinable by the variable
> ?drug because the objects in the owl:sameAs relationships across dbpedia are
> not the actual resource URIs, that are used in other datasets such as
> drugbank. These are the owl:sameAs values for
> <http://dbpedia.org/resource/Lepirudin><http://dbpedia.org/resource/Lepirudin>
>
> http://pt.dbpedia.org/resource/Lepirudina
> http://fr.dbpedia.org/resource/Lépirudine<http://fr.dbpedia.org/resource/L%C3%A9pirudine>
> http://www4.wiwiss.fu-berlin.de/dailymed/resource/ingredient/Lepirudin
> http://www4.wiwiss.fu-berlin.de/drugbank/resource/drugs/DB00001
> freebase:Lepirudin
>
> The actual resource URI used by drugbank is
> <http://wifo5-04.informatik.uni-mannheim.de/drugbank/resource/drugs/DB00001><http://wifo5-04.informatik.uni-mannheim.de/drugbank/resource/drugs/DB00001>.
> Instead of using values that redirect to the resource, dbpedia should use
> the values used by other datasets to represent the resource. Following such
> practices would make federated queries possible, and generally improve the
> quality of the Semantic Web.
>
>
> Grant Smith
>
> Grant Smith
> 816-588-2004
--
Kind Regards
Mohamed Morsey
Department of Computer Science
University of Leipzig
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Symantec Endpoint Protection 12 positioned as A LEADER in The Forrester
Wave(TM): Endpoint Security, Q1 2013 and "remains a good choice" in the
endpoint security space. For insight on selecting the right partner to
tackle endpoint security challenges, access the full report.
http://p.sf.net/sfu/symantec-dev2dev
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