- From: Dan Brickley <danbri@danbri.org>
- Date: Thu, 20 Jul 2006 14:49:51 +0200
- To: finin@cs.umbc.edu
- Cc: public-xg-geol@w3.org, semantic-web@w3.org, Li Ding <dingli1@cs.umbc.edu>
Tim Finin wrote: > Dan Brickley wrote: >> ... I’d be very interested to know more about how the namespace >> described in http://www.w3.org/2003/01/geo/ has been used in practice >> (perhaps after consulting the new XG to find out what questions to ask!). >> In particular, we might want to know things like: which >> namespaces it often co-occurs with. What other properties its classes >> are used as domain or range of. Whether people use appropriate values >> (dots vs commas, negative values, etc), whether literals are all plain >> or if folk have used datatypes. >> Also given the nature of the data, I’d guess that there would be >> significant interest in getting data dumps that could be plotted on >> maps and so-on. But mainly I’m most interested simply in how the >> namespace has been used. Hmm can you plot adoption/usage over time, too? > > Dan -- I'm at AAAI this week, but will put together some data when I > get back. Most of this data can be colleced via the Swoogle Web > interface. We keep 'metadata' type infomation on all of the 1.6M > RDF documents in our database, but not the 300M triples. So, to > analyze all of the values used with geo tags, we'd have to (1) use > swoogle find which documents use these terms; (2) access those > documents and collect the values; and (3) do some analysis of the > set. > > The results of a Swoogle query are available in RDF as well as HTML, > so one can process the RDF form of a result with, for example, a > SPARQL query. We limit the number of query results unless you get > a Swoogle API key from us, which is free of course. > > My plan (aka good intention) is to get you this data, and then > show (via a post) exactly how I did it, so that other could use > it as an example in case they would like to investigate the > usage patterns of other RDF terms. That would be fantastic! Thanks for this high-level overview too, hope it helps others find their way around the information offered by Swoogle. cheers, Dan
Received on Thursday, 20 July 2006 12:50:18 UTC