W3C home > Mailing lists > Public > public-esw-thes@w3.org > November 2004

RE: working around the identity crisis

From: Benjamin Nowack <bnowack@appmosphere.com>
Date: Tue, 16 Nov 2004 18:18:59 +0000
To: "Miles, AJ (Alistair)" <A.J.Miles@rl.ac.uk>
Cc: www-rdf-interest@w3.org, public-esw-thes@w3.org
Message-id: <PM-EV.20041116181859.BEAC7.2.1D@bodkin.nuigalway.ie>

On 16.11.2004 16:58:03, Miles, AJ (Alistair) wrote:
>> The technical problem is that using frag ids raises issues when you
>> have a large set of terms and then try to efficiently GET a term's URI
>> in order to receive a description (or if you would like to
>> provide term
>> descriptions at a term's URI).
>Just to say that, as Dave Reynolds pointed out a little while ago on
>public-esw-thes list, this is not necessarily true, as you can do things
>   http://my.org/knowlegebase/chemistry/water#concept

>    http://my.org/knowlegebase/chemistry/ice#concept

>    http://my.org/knowlegebase/chemistry/water#Water

>    http://my.org/knowlegebase/chemistry/ice#Ice

>... see his posting at

heh, sure. but this is a "fake" solution, as the different URIs *are*
built using slashes ("../water", "../ice"). Dave simply adds an
additional fragment. GETting "../water", "../water#concept", or
"../water#Water" will always return the same result (unless you're
using something like uriqa). These are all different URI(ref)s, but
you wouldn't be able to define a shared namespace for multiple terms
which would still allow to *efficiently* (added on purpose) GET a
(single) term's description. This may not neccessarily apply to SKOS
concept schemes, but it does apply to RDF term sets.

>Not that I'm expressing any sort of opinion on whether hash or slash is best
Me neither ;)
I actually like  #-vocabs very much as they are usually using the
rdf:ID construct which makes them easier to read (and yes, "view-source"-
friendliness *can* help the SemWeb grow ;). but I see the problems that
arise when someone tries to create #-URIs for individuals. using slash,
but auto-adding fragIDs, could be a nice solution both camps could be
happy with, though. (provided that tools supported such a feature. I'll
have a thought or two on that..)


Benjamin Nowack

Kruppstr. 100
45145 Essen, Germany

>> >If this has been discussed to death before, please feel free
>> to tell me
>> >so and/or provide a pointer to such a discussion.
>> one related thread ("pound sign vs. slash as final URI delimiter")
>> starts at [1]
>> [1]
>> http://lists.w3.org/Archives/Public/www-rdf-interest/2004Feb/0117.html

>> regards,
>> benjamin
>> --
>> Benjamin Nowack
>> Kruppstr. 100
>> 45145 Essen, Germany
>> http://www.bnode.org/

>> @ DERI Galway from 2004-10-01 to 2004-12-02
>> http://www.deri.ie/

>> >
>> >Cheers,
>> >
>> >Jeen

Received on Tuesday, 16 November 2004 18:17:45 UTC

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