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Re: top tag descriptions, clarifications

From: Felix Sasaki <felix.sasaki@fh-potsdam.de>
Date: Thu, 21 May 2009 19:06:40 +0200
Message-ID: <ba4134970905211006u1dd0cb9asce017d9be52fd0c5@mail.gmail.com>
To: Pierre-Antoine Champin <pierre-antoine.champin@liris.cnrs.fr>
Cc: David Singer <singer@apple.com>, public-media-annotation@w3.org
Hi Pierre-Antoine,

no need to repeat previous discussions about return values ... my concern
was not about the API, but about information in the mapping table, which is
not available yet.

Felix

2009/5/21 Pierre-Antoine Champin <pierre-antoine.champin@liris.cnrs.fr>

> A few comments:
>
> - I think we should not distinguish URN from dereferenceable URIs; this
> debate is out of scope for us. Any URI should be considered as an
> identifier, possibly dereferenceable.
>
> - I think we should allow textual descriptions or URIs, but also be able
> to disinguish between the two
>
> - I think we should allow explicit multiple values
>
> The last two points have been my concerns when developing the toy
> application at [1] (which should be updated now with the top tags).
>
>  pa
>
> [1] http://liris.cnrs.fr/~pchampin/wsgi/mawg/<http://liris.cnrs.fr/%7Epchampin/wsgi/mawg/>
>
> David Singer a écrit :
> > I have an action to improve the descriptions
> > on<http://www.w3.org/2008/WebVideo/Annotations/wiki/Top_Supported_Tags>
> >
> > I'm not quite sure what sort of improvement I should be allowed to do,
> > however.
> >
> > Let's see where I think an improvement might be indicated.
> >
> > For many tags:
> >   -- in what language is this expressed?  Are multiple e.g. titles in
> > different languages allowed?
> >
> > Enumerations:
> >   -- for tags like contributor (contribution role), genre etc.: are we
> > planning to have a defined set of names, some extension capability, or a
> > free-for-all?
> >
> > For names
> >   -- do we allow a de-referencable pointer as well as a textual name?
> > E.g. are <http://www.sony.com> and "Sony Corporation" permitted?  How do
> > we distinguish the two, if so?
> >
> > For couplets (contributor, relation):
> >   -- we need to say how the pairing is done.  Is this textual, e.g. {a,
> b}?
> >
> >
> >
> > ma:creator -- is this the 'human names' of the creator(s), or their
> > unique IDs (e.g. URN) or  de-referencable pointer (e.g. URI to their
> > FaceBook page :-))?
> >
> > ma:keyword -- if there is more than one word, is it a phrase, or are
> > they separate keywords?  Do we need to say phrases are in quotes? Are
> > keywords an 'enumerated space' (as above)?
> >
> > ma:duration -- someone at the meeting was arguing that this might be
> > different from the actual media duration, but I can't remember why. If
> > it's the actual media duration, it's a property rather than annotation.
> >
> > ma:spatialDimension -- we need units, and we need to know if they are
> > uniform.  I would say that the dimensions must be uniform (square grid)
> > and that some unit must be specified (cm, inch, square-pixel, point, ...)
> >
> > ma:genre -- enumeration?  (note typo in the 4th column, 'resrouce')
> >
> > ma:createDate -- can we say that this is a date as defined in ISO 8601
> > string format?  That allows for presentation, comparison, conversion to
> > other date systems etc.  We probably don't need to care about the b.c.e
> > issue.
> >
> > ma:compression -- what namespace is used to name compressors?  Or is
> > this a URI to the spec.?
> >
> > ma:location -- probably an ISO 6709 (Annex H) string, right?  Do we want
> > other possible additional values here (e.g. a human name, "Barcelona")
> > etc.?
> >
> > ma:collection -- rather than a name, wouldn't an identifier (URN or URI)
> > be better?
> >
> > ma:rating -- how is the person or organization identified?
> >
> > ma:targetAudience -- isn't this a triplet?  e.g. "Venezuelan Board of TV
> > Censors", "Permissible broadcast hours", "03h - 04h"?  Why is rating not
> > one of these triples?
> >
> >
>
>
>
Received on Thursday, 21 May 2009 17:07:23 GMT

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