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Re: RDFa for HTML Authors

From: Hugh Glaser <hg@ecs.soton.ac.uk>
Date: Thu, 14 May 2009 21:07:36 +0100
To: David Baxter <retxabd@gmail.com>
CC: "Steven.Pemberton@cwi.nl" <Steven.Pemberton@cwi.nl>, Linking Open Data <public-lod@w3.org>
Message-ID: <EMEW3|55ed28b872aac02e53c9717c3cec2f97l4DL7m02hg|ecs.soton.ac.uk|B14A%hg@ecs.soton.ac.uk>
Thanks David.
To be accurate, there are two services.
The opencyc CRS at http://opencyc.rkbexplorer.com/crs/ which has the
³recommended by opencyc² URI equivalences.
Eg
http://opencyc.rkbexplorer.com/crs/export/?uri=http://sw.opencyc.org/2009/04
/07/concept/en/CityOfAmsterdamNetherlands
(which gives the possible non-deprecated URIs and the recommended "canon").

There is also another (more comprehensive) service at
http://www.rkbexplorer.com/sameAs/
Eg
http://www.rkbexplorer.com/sameAs/?uri=http://sw.opencyc.org/2009/04/07/conc
ept/en/CityOfAmsterdamNetherlands
which gives all the URIs we know about (10 in this case for Amsterdam).
This is a less well-controlled resource, and so may have errors that sources
have told us.
Pour amusé you might like to look at our knowledge of Tim's URIs:
http://www.rkbexplorer.com/sameAs/?format=n3&uri=http://www.okkam.org/ens/id
6c26f9fc-856e-4d6c-aae1-cd80869ff509
Although most of the 63 are our rkb ones, there are at least 10 others.

These services are "as is", as we are trying to find the time to polish and
announce them, but failing.
Lots of people have helped us get the data together, or provided it
unknowingly, and we thank (Ian and I) them.
If you have a bunch of these things, then if you send them to me (lists of
pairs or N3 sameAs preferred), I will try to get them in there.

Best
Hugh


On 14/05/2009 19:03, "David Baxter" <retxabd@gmail.com> wrote:

> On Thu, May 14, 2009 at 7:06 AM, Bernard Vatant <bernard.vatant@mondeca.com>
> wrote:
>> Hello Steven
>> 
>> Discovering your excellent page at
>> http://www.w3.org/MarkUp/2009/rdfa-for-html-authors ... just in time with
>> recent Google's announcement!
>> About "Talking about People, Places and Things", just a remark. You write
>> "The city of Amsterdam doesn't have a URI".
>> Well, not quite so now. The entity "City of Amsterdam" *has* indeed several
>> (too many, actually) coined URIs, such as :
>> 
>> http://dbpedia.org/resource/Amsterdam
>> http://sws.geonames.org/2759793/
>> http://rdf.freebase.com/ns/guid.9202a8c04000641f8000000000004475
>> http://mpii.de/yago/resource/Amsterdam
>> http://sw.opencyc.org/2008/06/10/concept/Mx4rvViJppwpEbGdrcN5Y29ycA
> 
> One note: OpenCyc just by itself has several different URIs for Amsterdam.
> This URI is from the 2008 release of OpenCyc. We recommend using the URIs
> without dates for most purposes, in this case:
> 
>  http://sw.opencyc.org/concept/Mx4rvViJppwpEbGdrcN5Y29ycA
> <http://sw.opencyc.org/concept/Mx4rvViJppwpEbGdrcN5Y29ycA>
> 
> Hugh Glaser is kindly operating a "Coreference Resolution Service" [1] where
> one can enter any OpenCyc URI and see the canonical version as well as current
> alternative versions.
> 
> David Baxter
> 
> [1] http://opencyc.rkbexplorer.com/crs/
>  
>> 
>> 
>> All those being URIs for this same entity, de-referencable along with their
>> RDF description, and parts of the linked data cloud.
>> See http://linkeddata.org for more about it
>> So if your page could include reference to such URIs, it would be great for
>> the linked data community!
>> 
>> Good to keep the blank node approach you explain quite well for those
>> entities with really no URI. But there are less and less of those ...
>> Even Love has a URI ... http://dbpedia.org/resource/Love :-)
>> 
>> Best
>> 
>> Bernard
Received on Thursday, 14 May 2009 20:08:27 UTC

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