Re: Re: mod_enclosures proposal

On Nov 18, 2004, at 10:03 PM, [email protected] wrote:

> I think it is finally starting to take shape.
> I would like to thank everybody for their help and we
> will be glad to hear any additional remarks and suggestions
> you might have.

I think that you could profit from a less verbose syntax by losing the 
<enc1:children/>. In your proposal the class Enclosures is a class 
which contains a single property which has a Collection class which, 
etc.. I think the semantics should be: item has a property enclosures, 
which is a collection of, etc.. I tested this with a pair of SPARQL 
queries (see below), and as you can see the <enc1:children/> is totally 
redundent and just adds an extra triple pattern to get to where you 
want to be.

SPARQL query using your proposal:
http://tinyurl.com/5jbel

SPARQL query using reduced grammar:
http://tinyurl.com/6fwc5

I'm also not sure what kind of ranges you expect with enc1:quality. The 
numerical value doesn't seem to express much unless you know it's exact 
meaning whilst enc1:quality="high" is maybe subjective, but directly 
apparent in it's meaning.

PREFIX rss: <http://purl.org/rss/1.0/>
PREFIX enc: <http://purl.oclc.org/net/rss_2.0/enc#>
PREFIX enc1: <http://crocodile.org/ns/rss/1.0/enclosures>

SELECT ?url
WHERE
   (?enclosure enc:url ?url)
   (?enclosure enc:type "application/x-bittorrent")
   (?enclosure enc1:quality "high")

Regards,
Suzan Foster.



 
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