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Edit comment LC-2403 for Media Annotations Working Group

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Comment LC-2403
:
Commenter: Phil Archer <phil@philarcher.org> on behalf of POWDER

or
Resolution status:

Hi Thierry, everyone,

You asked for review of your LCWDs from a POWDER perspective. IU've
taken a look at both documents and don't have any substantive comments
on either since they are some distance removed from what POWDER was
designed to do (which is good because it means there's been no pointless
duplication of effort!).

The document that perhaps has most relevance is your Ontology for Media
Resources. You might consider adding a short section in the manner that
was done for mobileOK [1], or elsewhere in your group output, to show
how a publisher can easily apply terms from the ontology to multiple
resources. Recall that a key feature of POWDER is its ability to derive
semantic meaning from URIs that are otherwise completely "dumb" from a
machine's perspective.

For example, a human would have no difficulty interpreting this URI

http://example.com/movies/sci-fi/

as being the base for perhaps a whole catalogue of science fiction
films. Specific URIs might then be:

http://example.com/movies/sci-fi/alien.mpg
http://example.com/movies/sci-fi/aliens.mpg
http://example.com/movies/sci-fi/alient3.mpg
http://example.com/movies/sci-fi/alienresurrection.wmv
http://example.com/movies/sci-fi/bladerunner.mov

A POWDER document could be constructed to make various assertions about
these films available to Semantic Web clients>

<?xml version="1.0"?>
<powder xmlns="http://www.w3.org/2007/05/powder#"
xmlns:ma="http://www.w3.org/ns/ma-ont#">

<attribution>
<issuedby src="http://example.com/company.rdf#me" />
<issued>2007-12-14T00:00:00</issued>
</attribution>

<dr>
<iriset>
<includehosts>example.com</includehosts>
<includepathstartswith>/movies/sci-fi/</includepathstartswith>
</iriset>

<descriptorset>
<ma:genre src="http://example.com/ontology.rdf#sf />
<ma:publisher src="http://example.com/company.rdf#me" />
<displaytext>Movies in this section of the website are all
in the science fiction genre</displaytext>
<displayicon src="http://example.com/sf-icon.png" />
</descriptorset>
</dr>
</powder>

You can add in further description resources to say things about all the
Alien films, or all those that end in .mpg. Given this information a
POWDER processor can return triples that describe specific URIs.

HTH

Phil


[1] http://www.w3.org/TR/mobileOK/#sec_mobileOK_Labels
(space separated ids)
(Please make sure the resolution is adapted for public consumption)


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