Re: Using the Ontology for Media Resources in the Semantic Web

Raphaël,

thanks for the notification and the question.

Personally (ie, with my activity lead hat off) the only approach I see for the problem you site is to use some sort of an extra syntax to express what we currently refer to as 'named graphs' within, say, Turtle. But, as you well know, there is no standard syntax for something like that at this moment. 

Although nothing is decided yet, this issue is most probably one of the items that a new RDF 'Next' Working Group will pick up, at least if we look at the results of the RDF Questionnaire[1]. But nothing is decided yet, and whatever solution that WG might provide will not come in time for your work to complete.

Other members of the CG may have better ideas...

Sincerely

Ivan

[1] http://www.w3.org/2002/09/wbs/1/rdf-2010/results


On Sep 9, 2010, at 17:17 , Raphaël Troncy wrote:

> Dear Ivan, SW coordination group,
> 
> The W3C Media Annotations WG has discussed your review [1] and in particular how to use the Ontology for Media Resources in the Semantic Web. Please, note that you will receive from Thierry a detailed answer to all your questions in a separate email. Please, note also that an RDF/OWL version of the ontology will be included in an Appendix in the next publication of this document.
> 
> I'm contacting you, now, to get your input and feedback on one of our issue: how to associate a complex annotation (typically represented as an RDF graph) to a media resource?
> 
> To be a bit more precise, the Ontology for media resources allows:
> 
>  1/ Free text annotation using the ma:description property, e.g.:
> 
> @prefix ma: <http://www.w3.org/ns/ma-ont>.
> <http://www.w3.org/2008/WebVideo/Fragments/media/fragf2f.ogv#t=12,21>
>  a ma:Video;
>  ma:description "Raphael is explaining what is a media fragment URI and it should be processed".
> 
>  2/ (More) Complex semantic annotation using the ma:relation property, e.g.:
> 
> @prefix ma: <http://www.w3.org/ns/ma-ont>.
> <http://www.w3.org/2008/WebVideo/Fragments/media/fragf2f.ogv#t=12,21>
>  a ma:Video;
>  ma:relation [
>    ma:relID <http://www.example.com/annotation-1.ttl>;
>    ma:relNature "Semantic Annotation";
>  ]
>  ma:description "The audience is applauding".
> 
> <http://www.example.com/annotation-1.ttl> being a Named Graph that would contain the statement:
> <http://dbpedia.org/resource/Audience> ex:humanActivity <http://dbpedia.org/resource/Applause>
> 
> Here, we point to a named graph that would contain a potentially complex graph annotation. The Media Annotations WG would like to explore the possibility to have *embedded* semantic annotation directly into the media description and ask suggestions of how to do this?
> Could you provide us any input?
> 
> Tracker, this is ACTION-271 [2]
> Best regards.
> 
>  Raphaël ... on behalf of the Media Annotations WG
> 
> [1] http://lists.w3.org/Archives/Public/public-media-annotation/2010Jul/0017.html
> [2] http://www.w3.org/2008/WebVideo/Annotations/track/actions/271
> 
> -- 
> Raphaël Troncy
> EURECOM, Multimedia Communications Department
> 2229, route des Crêtes, 06560 Sophia Antipolis, France.
> e-mail: raphael.troncy@eurecom.fr & raphael.troncy@gmail.com
> Tel: +33 (0)4 - 9300 8242
> Fax: +33 (0)4 - 9000 8200
> Web: http://www.eurecom.fr/~troncy/
> 


----
Ivan Herman, W3C Semantic Web Activity Lead
Home: http://www.w3.org/People/Ivan/
mobile: +31-641044153
PGP Key: http://www.ivan-herman.net/pgpkey.html
FOAF: http://www.ivan-herman.net/foaf.rdf