Fwd: ITS ontology

-------- Original-Nachricht --------
Betreff: 	ITS ontology
Datum: 	Wed, 08 May 2013 09:11:21 +0200
Von: 	Sebastian Hellmann <hellmann@informatik.uni-leipzig.de>
An: 	Felix Sasaki <fsasaki@w3.org>, David Lewis <dave.lewis@cs.tcd.ie>



Just had a quick look on the ontology and still have the following changes:

Change 1: shouldn't these be DatatypeProperties:

itsrdf:taIdent
     a owl:ObjectProperty .
itsrdf:taSource
     a owl:ObjectProperty .

Change 2:
having rdfs:range xsd:string everywhere can be tricky. Note that you can
not have a language tag and a datatype.
So it is either:
<http://www.w3.org/2005/11/its/rdf#>
<http://www.w3.org/2000/01/rdf-schema#comment> """This is the ITS 2.0 /
RDF ontology"""@en .
XOR
<http://www.w3.org/2005/11/its/rdf#>
<http://www.w3.org/2000/01/rdf-schema#comment> "This is the ITS 2.0 /
RDF ontology"^^<http://www.w3.org/2001/XMLSchema#string> .

During the conversion the language tag gets lost:
<?xml version="1.0" encoding="utf-8"?>
<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
xml:base="file">
   <rdf:Description rdf:about="http://www.w3.org/2005/11/its/rdf#">
     <ns0:comment xmlns:ns0="http://www.w3.org/2000/01/rdf-schema#"
xml:lang="en" rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
>This is the ITS 2.0 / RDF ontology</ns0:comment>
   </rdf:Description>
</rdf:RDF>

is
<http://www.w3.org/2005/11/its/rdf#>
<http://www.w3.org/2000/01/rdf-schema#comment> "This is the ITS 2.0 /
RDF ontology"^^<http://www.w3.org/2001/XMLSchema#string> .
in turtle.

On the other hand, having no datatype entails xsd:string , if I recall
correctly.
More info can be found here:
http://www.w3.org/TR/rdf-concepts/#section-Graph-Literal

Change 3:
inclusion of an annotation property taPropRef in the ontology only (not
the its W3C recommendation)

We might have:
Houston Airports <span
taIdentRef="http://dbpedia.org/ontology/spokesperson"
taClassRef="http://www.w3.org/2002/07/owl#ObjectProperty">spokeswoman</span>
Marlene McClinton .

Change 4:
nif:occursIn has changed to nif:sourceUrl

Change 5 in ITS spec http://www.w3.org/TR/its20/#conversion-to-nif

     nif:occursIn      <http://example.com/exampledoc.html> .
<http://example.com/exampledoc.html#char=11,17>
     rdf:type              nif:RFC5147String;
     rdf:type              nif:RFC5147String ;


    nif:sourceUrl      <http://example.com/exampledoc.html> .
<http://example.com/exampledoc.html#char=11,17>
     rdf:type              nif:String ;
     rdf:type              nif:RFC5147String ;

I also included a property in the nif-core ontology

nif:convertedFrom
     a owl:ObjectProperty ;
     rdfs:label "converted from"@en ;
     rdfs:comment "The URL this string was converted from"@en ;
     rdfs:domain nif:String ;
     rdfs:range nif:String .


-- 
Dipl. Inf. Sebastian Hellmann
Department of Computer Science, University of Leipzig
Events: NLP & DBpedia 2013 (http://nlp-dbpedia2013.blogs.aksw.org,
Deadline: *July 8th*)
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Homepage: http://bis.informatik.uni-leipzig.de/SebastianHellmann
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