Re: [pedantic-web] Corrections to recent HCLS notes and SWAN ontology

On 23 Oct 2009, at 20:24, Alexandre Passant wrote:

> Hi Simon,
>
> On 23 Oct 2009, at 19:05, Simon Reinhardt wrote:
>
>>
>> Hello,
>>
>> I have some corrections and remarks on the new HCLS notes [1][2] as  
>> well as the SWAN ontology.
>>
>> First of all the Turtle code has some errors in both of the  
>> documents. The prefixes at the beginning of each block are defined  
>> in SPARQL syntax ("PREFIX blah: <uri...>") however the syntax for  
>> Turtle is different. It should be "@prefix blah:  
>> <uri...> ." (trailing dot!).
>
> Thanks, well spotted.
> I fixed that in svn, I'll see if the W3C team if the published note  
> can be updated.
>
>> Then in [2], section 5.2 you write URIs as literals several times.  
>> This happens with the predicates  
>> swanci:contributionPublicationEnvironment,  
>> swanci:contributionPublisher, swanpav:importedFromSource,  
>> swanci:publishedBy and owl:sameAs. And inspecting the SWAN  
>> ontologies all those are object properties, so the values really  
>> shouldn't be literals.
>
> I fixed that as well - will also check for republishing.

Your two comments have been taken into account (I also figured out  
some missing prefixes) and the notes directly updated, since we are  
within the 24h after publication.
Please note that further comments (if any) could only be taken account  
in a newer version of the note.

Best,

Alex.


>
>> Also this document randomly switches to RDF/XML for one block of  
>> syntax in section 6 while the next block below is Turtle again. Any  
>> particular reason for that? I think that's rather confusing for the  
>> reader.
>>
>> Concerning the SWAN ontologies themselves I noticed that the  
>> namespaces stated in [2], section 1.3, don't resolve to anything. I  
>> would expect that when accessing those URIs I get redirected to the  
>> particular ontology document (and, since you use namespace URIs  
>> ending in / I would also expect any term URI built from that to  
>> redirect to its ontology). Instead they redirect to URIs like http://swan.mindinformatics.org/ontologies/1.2/discourse-elements/ 
>>  which return a 404.
>
> We were indeed aware of that, and asked the sysadmin to fix it.
> Paolo, do you know the current status of the redirect ?
>
>> Going through the SWAN ontology site [3] I can reach the OWL files,  
>> however when inspecting them I notice that they don't actually use  
>> the PURL namespaces from [2]. Instead they use the URIs those  
>> redirect to directly - so all URIs of the terms defined in there  
>> don't match the URIs of the terms in the W3C document. The HTML  
>> specs provided on the SWAN site also declare those to be the  
>> namespace URIs and not the PURL ones.
>> Finally, all OWL documents appear to be served with MIME type text/ 
>> xml instead of application/rdf+xml so RDF or OWL tools might not  
>> recognise them properly.
>
> Might be also something that can be fixed by the sysadmins from the  
> swan server ?
>
> Best,
>
> Alex.
>
>>
>> Regards,
>> Simon Reinhardt
>>
>>
>> [1] http://www.w3.org/TR/2009/NOTE-hcls-sioc-20091020/
>> [2] http://www.w3.org/TR/2009/NOTE-hcls-swan-20091020/
>> [3] http://swan.mindinformatics.org/ontology.html
>
> --
> Dr. Alexandre Passant
> Digital Enterprise Research Institute
> National University of Ireland, Galway
> :me owl:sameAs <http://apassant.net/alex> .
>
>
>
>
>
>

--
Dr. Alexandre Passant
Digital Enterprise Research Institute
National University of Ireland, Galway
:me owl:sameAs <http://apassant.net/alex> .

Received on Saturday, 24 October 2009 12:03:32 UTC