W3C home > Mailing lists > Public > semantic-web@w3.org > February 2007

Re: RFC on 'Semantic Web Locationary'

From: Chris Bizer <chris@bizer.de>
Date: Wed, 7 Feb 2007 09:08:06 +0100
Message-ID: <003301c74a8f$19376cf0$c4e84d57@named4gc1asnuj>
To: "Pipian" <pipian@pipian.com>, "Joshua Shinavier" <parcour@gmail.com>, <semantic-web@w3.org>

Hi Ian,

I agree with Joshua and also think that you are working completely into the 
right direction.

I have added your site to the dataset collection 
of the SWEO community project "Linking Open Data on the Semantic Web"

Maybe our link collections to related projects, tools and other data sets 
can give you some more ideas for improving your project.

You are also more then welcome to participate in the effort. Maybe yu should 
also discuss your stuff with Marc and Bernard from Geonames.

Keep on the good work!



Chris Bizer
Freie Universitšt Berlin
+49 30 838 54057
----- Original Message ----- 
From: "Joshua Shinavier" <parcour@gmail.com>
To: "Pipian" <pipian@pipian.com>; <semantic-web@w3.org>
Sent: Wednesday, February 07, 2007 2:12 AM
Subject: Re: RFC on 'Semantic Web Locationary'

> Hi Ian,
> IMH, newbie O, this is good and useful stuff.  I really appreciate the
> human-friendly URIs.  You asked for feedback, so here are some issues
> I ran into:
> 1) The web service response does not have a URI (e.g. the
> CC:SuccessfulReply in http://www.pipian.com/rdf/places/country/Asia),
> so it's not straightforward to find statements about it.
>  <CC:SuccessfulReply>
>    <CC:inReplyTo>
>      <CC:Request>
>        <dc:subject>
>          <wail:Place>
>            <wail:name>Asia</wail:name>
>            <dc:type>continent</dc:type>
>          </wail:Place>
>        </dc:subject>
>      </CC:Request>
>    </CC:inReplyTo>
>    <rdfs:seeAlso rdf:resource="#Asia" />
>  </CC:SuccessfulReply>
> 2) When I dereference a continent, region or planet URI in one of the
> pipian namespaces, I get a number of statements about that URI, and my
> (forward-traversing) app is happy.  However, when I dereference a
> country or subdiv (for instance,
> <http://www.pipian.com/rdf/places/country/AZ#AZ>) I get statements
> about a different URI with an owl:sameAs edge to the original URI:
>    <urn:iso:3166-1:AZ> owl:sameAs
> <http://www.pipian.com/rdf/places/country/AZ#AZ>
>    <http://www.pipian.com/rdf/places/country/AZ#AZ> rdf:type rdfs:Resource
> The point is that most of the information I get back is about
> <urn:iso:3166-1:AZ> instead of the handy HTTP URI.  Why not turn the
> owl:sameAs around and make statements about
> <http://www.pipian.com/rdf/places/country/AZ#AZ> instead?
> 3) The graphs you return contain a lot of what seem to me to be
> unnecessary, redundant statements (for instance, statements about Asia
> in the graph about Azerbaijan).  If I want information about Asia, I
> can just dereference Asia's URI.
> 4) I noticed a circular owl:sameAs statement in each country and
> region graph, dunno about other types.  I also don't know whether it
> matters.
>    <http://www.pipian.com/rdf/places/continent/Asia#Asia> owl:sameAs
> <http://www.pipian.com/rdf/places/continent/Asia#Asia>
> 5) The namespace declaration for the SWEET Space ontology is missing a
> '#', which breaks a few URIs:
>         xmlns:sweet = "http://sweet.jpl.nasa.gov/ontology/space.owl"
> Josh
Received on Wednesday, 7 February 2007 08:08:11 UTC

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