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RE: datatypes without xsd namespace information in ma-ont.rdf

From: Evain, Jean-Pierre <evain@ebu.ch>
Date: Fri, 25 Nov 2011 13:07:51 +0100
To: "'tmichel@w3.org'" <tmichel@w3.org>
CC: "'Höffernig, Martin'" <Martin.Hoeffernig@joanneum.at>, "public-media-annotation@w3.org" <public-media-annotation@w3.org>
Message-ID: <7D1656F54141C042A1B2556AE5237D6001129E431844@GVAMAIL.gva.ebu.ch>
Timely indeed...

I just re-validated it on http://www.w3.org/RDF/Validator/ :-)

It's rev 34 like identified in the specification.  By the way, I tried to validate what is currently in the PR and it doesn't pass the test.

I don't know what happened when.

Apparently the Turtle version is fine but I haven't cross-checked it.

Best regards,

Jean-Pierre

-----Original Message-----
From: Thierry MICHEL [mailto:tmichel@w3.org] 
Sent: vendredi, 25. novembre 2011 12:56
To: Evain, Jean-Pierre
Cc: "'Höffernig, Martin'"; public-media-annotation@w3.org
Subject: Re: datatypes without xsd namespace information in ma-ont.rdf

Jean Pierre could you send me your latest file ?

and I will update the spec before publication.

Thierry

Le 25/11/2011 11:50, Evain, Jean-Pierre a écrit :
> It is true for all xml datatypes and the error is in the rdf in the body of the specification.
>
> Jean-Pierre
>
> -----Original Message-----
> From: Evain, Jean-Pierre [mailto:evain@ebu.ch]
> Sent: vendredi, 25. novembre 2011 11:47
> To: 'Höffernig, Martin'; tmichel@w3.org; public-media-annotation@w3.org
> Subject: RE: datatypes without xsd namespace information in ma-ont.rdf
>
> I am looking at the latest version I have kept where datatypes were expressed as follows
>
>      <rdfs:range rdf:resource="http://www.w3.org/2001/XMLSchema#decimal"/>
>
> With the namespace defined as
>
>      xmlns:xsd="http://www.w3.org/2001/XMLSchema#"
>
> which looks fine to me. I don't know what went wrong and when but you are right the declaration should be there.
>
> Jean-Pierre
>
>
>
> -----Original Message-----
> From: Höffernig, Martin [mailto:Martin.Hoeffernig@joanneum.at]
> Sent: vendredi, 25. novembre 2011 09:21
> To: tmichel@w3.org; public-media-annotation@w3.org
> Subject: AW: datatypes without xsd namespace information in ma-ont.rdf
>
> Hi Thierry, all,
>
> since I have no permission to access the w3 cvs repository, I can't retrieve previous versions of the RDF/XML version of the MA ontology.
> However, I explain in more detail what is missing in the current version.
>
> current version (Turtle serialization)
> :frameRate     a owl:DatatypeProperty;
>    rdfs:comment "Corresponds to 'frameRate' in the Ontology for Media Resources, in frame per second.";
>    rdfs:domain :MediaResource;
>    rdfs:range xsd:decimal .
>
> current version (RDF/XML serialization)
> <owl:DatatypeProperty rdf:about="#frameRate">
> 	<rdfs:comment>Corresponds to 'frameRate' in the Ontology for Media Resources, in frame per second.</rdfs:comment>
>    <rdfs:domain rdf:resource="#MediaResource"/>
>    <rdfs:range rdf:resource="decimal"/>
> </owl:DatatypeProperty>
>
> Above, there are the definitions of ma:frameRate expressed by RDF/XML and Turtle. In RDF/XML version, no namespace information for the range datatype (decimal) is attached explicitly, whereas in the Turtle version, the XSD namespace is attached correctly.
> In a previous version RDF/XML version (the one I used to validate the example files at the F4F meeting in Graz last September), the missing XSD namespace information was present:
> previous version (RDF/XML serialization)
> <owl:DatatypeProperty rdf:about="#frameRate">
> 	<rdfs:comment>Corresponds to 'frameRate' in the Ontology for Media Resources, in frame per second.</rdfs:comment>
>    <rdfs:domain rdf:resource="#MediaResource"/>
>    <rdfs:range rdf:resource="&xsd;decimal"/>
> </owl:DatatypeProperty>
>
> This missing XSD namespace issue applies to all XSD-related datatypes (decimal, date, integer, ...) in the current RDF/XML version of the MA ontology.
> Again, since I haven't read/write access to the current MA versions, someone else should address this issue.
>
> Best,
> Martin
>
>> -----Ursprüngliche Nachricht-----
>> Von: Thierry MICHEL [mailto:tmichel@w3.org]
>> Gesendet: Dienstag, 22. November 2011 15:29
>> An: Höffernig, Martin
>> Cc: public-media-annotation@w3.org
>> Betreff: Re: datatypes without xsd namespace information in ma-ont.rdf
>>
>> Hi martin,
>>
>> You may want to see the diffs using cvslog
>> https://cvs.w3.org/Team/WWW/ns/ma-ont.rdf
>>
>> There you can "select for diffs" from one previous version to the
>> latest.
>>
>> let me know what is missing, that was in a orevious version.
>>
>> thierry
>>
>> Le 22/11/2011 12:18, Höffernig, Martin a écrit :
>>> Dear Thierry, all,
>>>
>>> I just found out that in the current RDF/XML serialization of the ma
>> ontology [1] the xsd namespace information for all xsd datatypes is
>> missing. These xsd datatypes are used to designate the range for
>> several  ma properties.
>>> However, in the Turtle version [2], the xsd namespace is attached to
>> the related xsd datatypes correctly.
>>>
>>> Can anyone confirm my observation?
>>> I'm quite sure that the missing xsd information was present in former
>> versions.
>>>
>>> Best,
>>> Martin
>>>
>>> [1]: http://www.w3.org/ns/ma-ont.rdf
>>> [2]: http://www.w3.org/ns/ma-ont.ttl
>>>
>>> --
>>> Martin Höffernig
>>> Audiovisual Media Group
>>> DIGITAL - Institute for Information and Communication Technologies
>>>
>>> JOANNEUM RESEARCH Forschungsgesellschaft mbH Steyrergasse 17, 8010
>>> Graz, AUSTRIA
>>>
>>> phone:  +43-316-876-1184
>>> general fax: +43-316-876-1191
>>> web:    http://www.joanneum.at/digital
>>> e-mail:
>>> martin.hoeffernig@joanneum.at<mailto:martin.hoeffernig@joanneum.at>
>>>
>>>
>
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Received on Friday, 25 November 2011 12:08:30 GMT

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