Hi Blake,
Blake Shepard wrote:
There seems to be a consensus that the RDF/OWL representation of WordNet
2.0 (as described at http://www.w3.org/TR/wordnet-rdf/ ) is not a
representation of the world at large but is rather a representation of a
language-level system that in turn represents the world at large. In
light of that, and based on some of the suggestions that have surfaced
in the course of this thread, I've discussed some options with David
Baxter here at Cycorp. In my mind, those discussions have led to the
proposal I describe below.
Good summary; +1.
In OpenCyc (in accord with Hugh's suggestion) include entities that
correspond directly with RDF WordNet Synset resources, and publish
owl:sameAs links between these entities and RDF WordNet resources, as
appropriate. Also publish links from ordinary Cyc entities to the RDF
Wordnet resources using rdfs:seeAlso (in accord with suggestions from
Fred and Matthias). Finally, publish links between the OpenCyc entities
that correspond directly with RDF WordNet Synset resources and the
corresponding RDF WordNet Synset resources with a new property defined
in Cyc, openCyc:synsetDenotes. "FOO openCyc:synsetDenotes BAR" will mean
that FOO is a synset that denotes the entity BAR.
For example, for the case of
<http://www.w3.org/2006/03/wn/wn20/instances/synset-India-noun-1>, we
would introduce an Cyc term to denote that object,
<http://sw.opencyc.org/2008/06/10/concept/en
<http://sw.opencyc.org/2008/06/10/concept/en/India>/wn-20-synset-India-noun-1
<http://www.w3.org/2006/03/wn/wn20/instances/synset-India-noun-1>>. We
would then publish the following links:
(1)
"<http://sw.opencyc.org/2008/06/10/concept/en
<http://sw.opencyc.org/2008/06/10/concept/en/India>/wn-20-synset-India-noun-1
<http://www.w3.org/2006/03/wn/wn20/instances/synset-India-noun-1>>
openCyc:synsetDenotes <http://sw.opencyc.org/2008/06/10/concept/en/India>"
(meaning that the NounSynset for the first sense form of "India" denotes
India)
(2)
"<http://sw.opencyc.org/2008/06/10/concept/en
<http://sw.opencyc.org/2008/06/10/concept/en/India>/wn-20-synset-India-noun-1
<http://www.w3.org/2006/03/wn/wn20/instances/synset-India-noun-1>>
owl:sameAs
<http://www.w3.org/2006/03/wn/wn20/instances/synset-India-noun-1>".
(3)
"<http://sw.opencyc.org/2008/06/10/concept/en/India> rdfs:seeAlso
<http://www.w3.org/2006/03/wn/wn20/instances/synset-India-noun-1>".
By including rdfs:seeAlso links, we will accomodate the existing
technologies that seek out and leverage such links.
By including owl:sameAs links, we will accomodate the existing
technologies that seek out and leverage those links.
By including openCyc:synsetDenotes links, we will make it clear that the
synset entities in the WordNet ontology are at least quasi-linguistic
things which can mean or signify (denote) the "world at large" objects
described by the OpenCyc ontology.
I'd very much appreciate hearing about any red flags this proposal
raises for anyone. I also thank all of you for your input in helping us
to arrive at what seems like a principled and workable approach.
Wow, this does sound like a bit of work, but it also is very
responsive and shows a commitment by OpenCyc to continue to play
a central role in linked data going forward.
You have our full-fledged support for this or similar, after your
review and input is complete. If we can help in any way making
this proposal actionable, just holler.
Mike
Blake
