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SKOS deployment stats - data from Sindice RDF crawler

From: Dan Brickley <danbri@danbri.org>
Date: Sat, 10 Jan 2009 17:12:10 +0100
Message-ID: <4968C8DA.1000803@danbri.org>
To: SWD WG <public-swd-wg@w3.org>

Hi folks

I've just written up a suggestion I made in yesterday's SWCG call:

	http://danbri.org/words/2009/01/10/386
	SKOS deployment stats from Sindice

Excerpted below, or see post for hyperlinks to the Sindice searches.

Hoping this might be useful,

Dan

[[
I suggested drawing a distinction between the use of SKOS to publish 
thesauri (ie. SKOS schemes), and the use of SKOS in RDFS/OWL schemas, 
for example subclassing of skos:Concept or defining properties whose 
range or domain are skos:Concept. A full treatment would look for a 
variety of constructs (eg. new properties that declare themselves 
subPropertyOf something in SKOS).

An example of such a use of SKOS is the new sioc:Category class, 
recently added to the SIOC namespace.

Here are some quick experiments with Sindice.

Search results for advanced “* 
<http://www.w3.org/2000/01/rdf-schema#domain> 
<http://www.w3.org/2004/02/skos/core#Concept>”, found 10

Search results for advanced “* 
<http://www.w3.org/2000/01/rdf-schema#range> 
<http://www.w3.org/2004/02/skos/core#Concept>”, found 10

Search results for advanced “* 
<http://www.w3.org/2000/01/rdf-schema#subClassOf> 
<http://www.w3.org/2004/02/skos/core#Concept>”, found 18

Here’s a query that finds all mentions of skos:Concept in an object role 
within an RDF statement:

Search results for advanced “* * 
<http://www.w3.org/2004/02/skos/core#Concept>”, found about 432.32 thousand

This all seems quite healthy, although I’ve not clicked through to 
explore many of these results yet.

BTW I also tried using the proposed (but retracted - see CR request 
notes) new SKOS namespace,
http://www.w3.org/2008/05/skos#Concept (unless I’m mistaken). I couldn’t 
find any data in Sindice yet that was using this namespace.
]]
Received on Saturday, 10 January 2009 16:12:50 GMT

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