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Re: Two concrete/practical cookbook examples of Semantic Tags

From: Antoine Isaac <aisaac@few.vu.nl>
Date: Mon, 4 Feb 2013 16:49:02 +0100
Message-ID: <510FD86E.1020703@few.vu.nl>
To: Leyla Jael García Castro <leylajael@gmail.com>, public-openannotation <public-openannotation@w3.org>
On 2/4/13 4:45 PM, Leyla Jael García Castro wrote:
> Hi Antoine, Paolo,
>
> On Mon, Feb 4, 2013 at 3:08 PM, Antoine Isaac <aisaac@few.vu.nl <mailto:aisaac@few.vu.nl>> wrote:
>
>     On 2/4/13 3:40 PM, Paolo Ciccarese wrote:
>
>         Two concrete/practical examples of Semantic Tags.
>         Please, just look at the RDF and the figure, I still working on the text.
>
>         1) A DBpedia entry used as semantic tag on an image:
>         http://www.w3.org/community/__openannotation/wiki/SE___Semantically_Tagging_an_Image <http://www.w3.org/community/openannotation/wiki/SE_Semantically_Tagging_an_Image>
>         In this case I can attach oa:Tag (oa:SemanticTag?) to the URI directly as it is a DBpedia 'resource.
>
>         2) Two URIs used as semantic tags while bookmarking a webpage
>         http://www.w3.org/community/__openannotation/wiki/__Bookmarking_and_Tagging_a___Webpage#Open_Annotation___Representation <http://www.w3.org/community/openannotation/wiki/Bookmarking_and_Tagging_a_Webpage#Open_Annotation_Representation>
>         The URIs also identify the HTML page for those entities so I used the SpecificResource construct as Rob suggested.
>
>         Should we keep two different constructs?
>         Comments?
>
>
>
>     As already said I don't like the Specific Resource pattern. It messes the message of Specific Resources, by letting one think semantic tags can be obtained by "refining" a source, the same way that other specifiers do. But in the case of semantic tags of course there's nothing analogous to selectors, states, etc.
>
>
> If we do not have selectors, how to model some text selected in a document a related to a semantic tag? I could have a document with a piece of text "Amyloid Beta (A4)", how would I attach a semantic tag just to that selected text?
>


The only answer I can think of (but I'm not 100% sure I understand your question, actually) is the one I've written in my last paragraph -- A.


>
>     Which shows well in your example: there's only oa:hasSource attached to your tag, which renders a bit absurd the use of the SR pattern.
>
>     If one wants to tie a semantic tag to a document that is very closely connected to it (one could say the document defines the concept) I'd recommend using something else. For example foaf:isPrimaryTopicOf:
>     http://xmlns.com/foaf/spec/#__term_isPrimaryTopicOf <http://xmlns.com/foaf/spec/#term_isPrimaryTopicOf>
>     Again, I strongly believe trying to address such generic concept/document problems into the OA machinery itself can only bring problems.
>
>     Antoine
>
>
Received on Monday, 4 February 2013 15:49:30 UTC

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