- From: Alistair Miles <alistair.miles@zoo.ox.ac.uk>
- Date: Wed, 17 Dec 2008 11:59:21 +0000
- To: Antoine Isaac <aisaac@few.vu.nl>
- Cc: Ed Summers <ehs@pobox.com>, Leonard Will <L.Will@willpowerinfo.co.uk>, "public-swd-wg@w3.org" <public-swd-wg@w3.org>, "public-esw-thes@w3.org" <public-esw-thes@w3.org>
I was going to say the same thing as Ed :) URIs, RDF and SPARQL are useful tools where you want to join data from different sources. You can use them to do things like: http://openflydata.org/search/gene-expression Gene name data from one source (flybase) is used to join data from three other sources. Not a reasoner in sight :) Cheers, Alistair On Tue, Dec 16, 2008 at 06:16:39PM +0100, Antoine Isaac wrote: > > Leonard, Ed, > >>> But if it is just for publication and exchange, why bother putting it into >>> an RDF framework? There are various simpler formats that have been used in >>> the past for the exchange of thesaurus data. I thought that the point of RDF >>> was to make it amenable to machine reasoning. >> >>> From my perspective the really powerful thing that SKOS provides as a >> semantic web application are web identifiers (URIs) for concepts. >> >> Minting URIs for your concept schemes and concepts allows them to be >> referenced and resolved easily. This allows descriptions of resources >> to unambiguously use SKOS concepts, while also providing a means for >> mapping concepts from different concept schemes together. > > And I'd add a graph, [1] at [2]: this is the kind of thing that is more difficult to do without RDF. > As a matter of fact the only two linked-data SKOS examples I know of, [3] and [4], are already connected (ok, partially, but that shows the direction to go!). > > And further RDF is not about reasoning. That's more RDFS and OWL. And even then, reasoning based on incomplete semantic specification can still prove useful... > > Antoine > > > [1] http://www4.wiwiss.fu-berlin.de/bizer/pub/lod-datasets_2008-09-18.html > [2] http://esw.w3.org/topic/SweoIG/TaskForces/CommunityProjects/LinkingOpenData > [3] http://lcsh.info > [4] http://libris.kb.se > -- Alistair Miles Senior Computing Officer Image Bioinformatics Research Group Department of Zoology The Tinbergen Building University of Oxford South Parks Road Oxford OX1 3PS United Kingdom Web: http://purl.org/net/aliman Email: alistair.miles@zoo.ox.ac.uk Tel: +44 (0)1865 281993
Received on Wednesday, 17 December 2008 12:00:11 UTC