Re: ANN: DBpedia Version 2014 released

On 9/10/14 6:01 AM, Bernard Vatant wrote:
> Hi all
>
> Following an off-list answer to Kingsley on the G+ LOV community 
> conversation [1]
>
> - The current state of affair needs to follow the ov:defines 
> predicates in the ontology description to each of its elements to get 
> the full description of the ontology content (classes and propertie). 
> I tried to replace those by owl:imports predicates and submit the file 
> to Protégé, but after more than one hour it was still struggling with 
> importing the 3480 elements from their URI, with so many queries on 
> DBpedia servers. Cleraly not the good solution.
>
> - So I tried otherwise, sending to the SPARQL endpoint this very basic 
> query.
>
> CONSTRUCT {?s ?p ?o}
>
> WHERE {   ?s rdfs:isDefinedBy <http://dbpedia.org/ontology/>.
>                   ?s ?p ?o}
>
> This is a compact URI for this query result (in RDF/XML) 
> http://bit.ly/1xHzpv5 which I successfully submitted to either Protégé 
> or the LOV-Bot.
> So, seems to me if the ontology namespace had a conneg to such a query 
> it would be all we need.
> Or, if you keep the things as they are, we will take internally in LOV 
> such a URI to feed the LOV-Bot.
>
> [1] https://plus.google.com/+BernardVatant/posts/jVVSVbxuDfq

Bernard,

Alternatively, we can implement the following, which basically leverages 
the much underutilized <http://www.w3.org/2007/05/powder-s#describedby> 
relation as a mechanism for incorporating an external (outside quad 
store) ontology terms description document into the DBpedia Ontology 
description:

## DBpedia Ontology Fix

# Ontology IRI: <http://dbpedia.org/ontology/>
# Named Graph IRI: <http://dbpedia.org/ontology/definitions#>
# Ontology Definitions Document URLs: 
<http://dbpedia.org/ontology/data/definitions.ttl>,
# <http://dbpedia.org/ontology/data/definitions.jsonld>, etc..
# URL Re-write rule:
# for all lookups requests for: <http://dbpedia.org/ontology/>
# resolve to (subject to Accept: headers), a SPARQL URL for:
# DESCRIBE <http://dbpedia.org/ontology/> FROM 
<http://dbpedia.org/ontology/definitions#>
#
# HTTP/WebDAV accessible Docs, generated by internal indirection of 
SPARQL DESCRIBE or CONSTRUCT:
#  <http://dbpedia.org/ontology/data/definitions.ttl>,
#  <http://dbpedia.org/ontology/data/definitions.jsonld>, etc..

  INSERT
   {GRAPH  <http://dbpedia.org/ontology/definitions#>
          {
               ?s rdfs:isDefinedBy <http://dbpedia.org/ontology/>.
               <http://dbpedia.org/ontology/> 
<http://open.vocab.org/terms/defines> ?s.
               <http://dbpedia.org/ontology/> a owl:Ontology .
               ?s <http://www.w3.org/2007/05/powder-s#describedby> 
<http://dbpedia.org/ontology/data/definitions.ttl> .
<http://dbpedia.org/ontology/dqta/definitions.ttl> 
<http://open.vocab.org/terms/describes> ?s .
           }
   }
   WHERE
   {GRAPH <http://dbpedia.org/ontology/definitions#>
           {
               {?s rdfs:subClassOf ?o}
               UNION
               {?s rdfs:subPropertyOf ?o}
               UNION
               {?s owl:equivalentClass ?o}
               UNION
               {?s owl:equivalentProperty ?o}
               UNION
               {?s a ?o}
           }
    }

ETA for this going live:  next 20 - 60 minutes.

Kingsley
>
> 2014-09-09 23:51 GMT+02:00 Kingsley Idehen <kidehen@openlinksw.com 
> <mailto:kidehen@openlinksw.com>>:
>
>     On 9/9/14 9:43 AM, Bernard Vatant wrote:
>>     Understood, great!
>>
>>     Please ping us when this is done, and/or suggest the ontology URI
>>     to http://lov.okfn.org/dataset/lov/suggest/
>>
>>     Looking forward for a LOV-ed DBpedia ontology :)
>>
>
>     Done.
>
>     [1] http://dbpedia.org/c/9BV46KCN - DBpedia Ontology
>
>     [2] http://dbpedia.org/c/9336LB2 - Class description
>
>     [3] http://dbpedia.org/ontology/PoloLeague -- HTTP URI that
>     identifies a class.
>
>     -- 
>     Regards,
>
>     Kingsley Idehen 
>     Founder & CEO
>     OpenLink Software
>     Company Web:http://www.openlinksw.com
>     Personal Weblog 1:http://kidehen.blogspot.com
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>
>
>
>
> -- 
> *Bernard Vatant
> *
> Vocabularies & Data Engineering
> Tel : + 33 (0)9 71 48 84 59
> Skype : bernard.vatant
> http://google.com/+BernardVatant
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-- 
Regards,

Kingsley Idehen 
Founder & CEO
OpenLink Software
Company Web: http://www.openlinksw.com
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