W3C home > Mailing lists > Public > public-lod@w3.org > June 2009

Re: ANN: sameas.org

From: Richard Cyganiak <richard@cyganiak.de>
Date: Thu, 4 Jun 2009 00:54:54 +0100
Cc: Semantic Web <semantic-web@w3.org>, Linked Data community <public-lod@w3.org>, Ian Millard <icm@ecs.soton.ac.uk>
Message-Id: <8CCDBF06-E92F-4450-87AE-41C5339EE12E@cyganiak.de>
To: Hugh Glaser <hg@ecs.soton.ac.uk>
Hugh, Ian,

Great work -- simple, visually attractive, does what it says on the  
tin. A pleasure to use.

Question: What can you say about the provenance of the sameAs data?  
The about page doesn't reveal much about this. This is sort of  
important to know before we can decide where and how to use the  
service -- anything that helps me judging the quality of the data  
would be useful. Is it hand-curated, does it contain wild triples from  
the Web, can it be spammed etc.

Comments about the RDF output.

The general RDF graph has the shape
   <U1> owl:sameAs <U1>, <U2>, <U3>, <U4> .

I think it would be pretty cool to make it
   <#this> owl:sameAs <U1>, <U2>, <U3>, <U4> .

That way, I could add a nice triple to my FOAF file:

   <#cygri> owl:sameAs
       <http://sameas.org/rdf?uri=http://richard.cyganiak.de/foaf.rdf%23cygri#this 
 > .

(Okay, I like this mostly because of the recursive cleverness of the  
idea. In reality, an rdfs:seeAlso would probably do just fine. But  
isn't owl:sameAs sooo much sexier?)

I think the RDF output could do with some extra triples. First, a  
meaningful dc:title for the document URI would be quite nice:

   <http://sameas.org/rdf?uri=http://richard.cyganiak.de/foaf.rdf%23cygri 
 >
       dc:title "Co-references from sameAs.org for foaf.rdf#cygri" .

Then, a foaf:primaryTopic triple would make several tools (most of all  
Tabulator) very happy:

   <http://sameas.org/rdf?uri=http://richard.cyganiak.de/foaf.rdf%23cygri 
 >
       foaf:primaryTopic <http://richard.cyganiak.de/foaf.rdf#cygri> .

Furthermore, what about dc:license?

In the case of /rdf?q=xxx, some nod in the direction of Sindice, e.g.  
via dc:source pointing to the Sindice RDF result, would be nice.

You might want to put a higher-resolution logo graphic somewhere, so  
that people who use your service can display it, similar to how you  
use the Sindice logo.

Again, thanks for this service.

Richard



On 3 Jun 2009, at 20:48, Hugh Glaser wrote:

> We are pleased to offer http://sameas.org/ as a service to provide  
> you with
> help finding URIs.
>
> It sort of does what it says:- if you provide a URI, it will give  
> you back
> URIs that may well be co-referent, should any be known to it.
> In addition, by using sindice.com, if you give it a string, it will  
> provide
> bundles of URIs that correspond to looking up the string at Sindice  
> and
> processing them at <sameas>.
>
> Apart from the obvious use of the service through the web-form,  
> simple URIs
> can be provided to do lookups:
> http://sameas.org/?uri=http://dbpedia.org/resource/London
> http://sameas.org/?q=London
> The following formats are also supported:
> rdf+xml, text/n3, application/json, text/plain
> both through content negotiation and also as a specific URI.
> For example:
> http://sameas.org/rdf?uri=http://dbpedia.org/resource/London
> http://sameas.org/n3?uri=http://dbpedia.org/resource/London
> http://sameas.org/html?uri=http://dbpedia.org/resource/London
> http://sameas.org/json?uri=http://dbpedia.org/resource/London
> http://sameas.org/text?uri=http://dbpedia.org/resource/London
>
> We believe that the Semantic Web and Linked Data need to develop  
> clear,
> focussed, services that only do one or two things, so that they can be
> composed and utilised by the more complex services, as well as  
> facilitating
> re-use.
> We hope that <sameas> fits into that category, and that Linked Data
> application builders will find it an appropriate and useful service  
> for the
> important task of discovering co-referent URIs.
> In addition, by providing formats oriented towards non-Linked Data
> application, we hope that the use of Linked Data can be spread even  
> wider.
>
> We currently have about 18M URIs, with an average of 3 URIs per  
> bundle.
>
> Best
>
> Ian Millard and Hugh Glaser
>
>
> -- 
> 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)75 9533 4155, Home: +44 (0)23 8061 5652
> http://www.ecs.soton.ac.uk/people/hg
>
> "If we have a correct theory but merely prate about it, pigeonhole  
> it, and
> do not put it into practice, then the theory, however good, is of no
> significance."
>
>
Received on Wednesday, 3 June 2009 23:55:44 UTC

This archive was generated by hypermail 2.3.1 : Sunday, 31 March 2013 14:24:21 UTC