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Re: Linked Data available

From: Hugh Glaser <hg@ecs.soton.ac.uk>
Date: Tue, 06 Nov 2007 19:26:49 +0000
To: Tim Berners-Lee <timbl@w3.org>
CC: Linking Open Data <linking-open-data@simile.mit.edu>, SW-forum Web <semantic-web@w3.org>, Ian Millard <icm@ecs.soton.ac.uk>
Message-ID: <C3567079.F3F6%hg@ecs.soton.ac.uk>

Thanks Tim, good questions.
Sorry the questions were necessary.

For example, if you go to http://nsf.rkbexplorer.com/
You will find the Browse and Query buttons on the top right, and in the
text.
So put in Berners in the browse box.
You get some matches.
The top one is 
http://nsf.rkbexplorer.com/id/person-6092a2a72319fc9437583fb2d04733ea
Which (I hope) 303s in the browser to an html page that has two instances of
you that have been identified as the same (we are doing the co-referent
analysis ourselves, as the existing resources cannot in general be trusted,
and then pollute things). Seems the RDF target is broken at the moment - see
below.
It shows two projects you were involved with (again, hope they are right).
If you want the full RDF that the triple came from (on their way to the
triplestore), the Source column on the right has a link (>>) to the file.
These can be quite large files, of course.
Browsing for "Semantic Web" will get all sorts of things in cordis and
citeseer (which includes ACM), although it takes a while on dblp for the
rendering of the results.
Here are some more randomish URIs:
http://dblp.rkbexplorer.com/description/books/sp/GeroimenkoC02
http://southampton.rkbexplorer.com/id/eprints-13347
http://newcastle.rkbexplorer.com/description/person-4
There isn't really a starting point on any of the stores.
Basically they are resolvable URIs and SPARQL, on top of which browsing can
be built (as with the explorer we are developing).
Hope that helps.
Hugh

On 6/11/07 17:29, "Tim Berners-Lee" <timbl@w3.org> wrote:

> Hugh,
> 
> Where does one start browsing?  I haven't been able to find an
> example object.
> For each one, do you have RDF URIs for (a) a typical thing example
> described by the database, and (b) a central or starting-point thing
> from which I would expect to be able to find everything there?
> 
> Tim
> 
> On 2007-11 -06, at 11:00, Hugh Glaser wrote:
> 
>> 
>> Hi,
>> 
>> We have constructed some rdf resources and an application that uses
>> them,
>> that can be found at:
>> http://www.rkbexplorer.com/
>> 
>> Each resource has a different domain, to make it easy to use, and
>> emphasising the fact that these are in fact completely separate
>> knowledge
>> bases.
>> 
>> For each resource, you can access it in the following ways:
>> 
>> Browse it, looking at the RDF triples;
>> Query it, using SPARQL;
>> Resolve each of the unique URIs for resources: depending on content
>> negotiation, RDF or HTML will be returned;
>> Query the associated CRS (Consistent Reference Service), to find
>> out which
>> other URIs are considered to be the same non-information resource.
>> 
>> We currently have the following:
>> 
>> http://budapest.rkbexplorer.com
> 
> If I browse that, I don't know where to start.
> 
> http://citeseer.rkbexplorer.comhttp://cordis.rkbexplorer.com
>> http://darmstadt.rkbexplorer.com
>> http://dblp.rkbexplorer.com
>> http://deepblue.rkbexplorer.com
>> http://eurecom.rkbexplorer.com
>> http://ft.rkbexplorer.com
> http://bm.rkbexplorer.com
> http://ieee.rkbexplorer.com
> http://irit.rkbexplorer.com
> http://italy.rkbexplorer.com
> http://kaunas.rkbexplorer.com
> http://laas.rkbexplorer.com
> http://lisbon.rkbexplorer.com
> http://newcastle.rkbexplorer.com
> http://nsf.rkbexplorer.com
> http://pisa.rkbexplorer.com
> http://roma.rkbexplorer.com
> http://southampton.rkbexplorer.com
> http://ulm.rkbexplorer.com
> http://wiki.rkbexplorer.com
>> 
> 
>> There are some quite big resources here: citeseer, cordis, dblp and
>> nsf are
>> a good size.
>> 
>> They all use the same ontology (AKT Reference Ontology, with some
>> small
>> additions), which hopefully makes them a useful resource for
>> applications
>> that use ontology-mediated separate knowledge bases.
>> 
>> There is also such an application:
>> http://www.rkbexplorer.com/explorer/
>> Since we have rebuilt the knowledge bases to conform to linked data
>> standards, the search and CRS information is still being analysed,
>> and thus
>> this version of the RKB explorer does not yet present as unified a
>> view as
>> we would like.
>> For a better unified view, please see the old version at
>> http://resist.ecs.soton.ac.uk/explorer/
>> 
>> Best
>> Hugh
>> 
>> -- 
>> Hugh Glaser,  Reader
>>               Dependable Systems & Software Engineering
>>               School of Electronics and Computer Science,
>>               University of Southampton,
>>               Southampton SO17 1BJ
>> Work: +44 (0)23 8059 3670, Fax: +44 (0)23 8059 3045
>> Mobile: +44 (0)78 9422 3822, Home: +44 (0)23 8061 5652
>> http://www.ecs.soton.ac.uk/~hg/
>> 
>> 
>> 
>> 
>> 
> 
Received on Tuesday, 6 November 2007 19:36:49 UTC

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