[TagCommons-WG] Async ESP game - collaborative photo tagging for JeromeDL

[Sebastian Kruk]

Dear Richard,

sorry for late response - I also have a huge backlog of emails,  
amassed over the last 4 weeks of traveling.

Your solution makes a lot of sense, and I was thinking about  
something similar.

Two questions however:

1) do you know of any existing vocabulary that we could re-use, I do  
not like to reinvent the wheel when it is not necessary :)
2) what would be the best way to "automate" the process (reasoning?)  
of identifying that some tags over a ROI are the tags of the whole  
picture as well; we would need to define partOf as a transitive  
relation in OWL, right?


Cheers,

S.


On 5 Jun 2007, at 02:59, Richard Newman wrote:

> (Working through my email backlog from oldest to newest; apologies  
> if someone else has already answered this satisfactorily.)
>
> On  29 May 2007, at 11:28 PM, Sebastian Kruk wrote:
>
>> I have identified, however, two issues we will need
>> to address by extending the generic tagging ontology:
>>    * support for regions-of-interest - so that we can tag a part of
>> an object, but the tagging can be inferred on the whole object
>
> The best solution I can think of for this is to identify part of  
> the object (with a URI, as I show here, or with a blank node), and  
> tag that. Informally, in RDF:
>
> # joeInPicture is the region depicting some chap named Joe  
> in :somePicture.
> :joeInPicture tag:...     # tagging info goes here.
> :joeInPicture :partOf :somePicture .
>
> # more detailed relationship to the picture...
> :joeInPicture :pictureRole [
>   :x 40 ; :y 140 ; :width 350 ; ... # describe the polygon, or a  
> bounding box.
>   :picture :somePicture             # relate it to the picture.
> ]
>
> Then you can, if you wish all tags for parts of the picture to  
> apply to the whole, say that:
>
> x :partOf y
> x tag:tag z
> =>
> y tag:tag z
>
> ... better yet, though, you'd search for regions' tags when  
> retrieving tags for an image.
>
> Does that make sense?
>
> -R

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