- From: Hugh Glaser <hg@ecs.soton.ac.uk>
- Date: Sun, 28 Apr 2013 09:48:53 +0000
- To: Sebastian Hellmann <hellmann@informatik.uni-leipzig.de>
- CC: Denny Vrandečić <denny.vrandecic@wikimedia.de>, semantic-web at W3C <semantic-web@w3c.org>, Tadej Stajner <tadej.stajner@ijs.si>, Felix Sasaki <fsasaki@w3.org>, David Lewis <dave.lewis@cs.tcd.ie>
I'm not sure its-ta-class-ref is what I meant. Your example (simplified a little): <p><span its-ta-class-ref="http://nerd.eurecom.fr/ontology#Location" its-ta-ident-ref="http://dbpedia.org/resource/Dublin">Dublin</span> is the capital of Ireland.</p> Sort of thing I meant: <p><span its-ta-ident-ref="http://dbpedia.org/resource/Dublin">Dublin</span> is a <span its-ta-ident-ref="http://nerd.eurecom.fr/ontology#Location">Location</span> in Ireland.</p> I am guessing I would need to do that, rather than use its-ta-class-ref. (Assuming you can guess what I think I might be achieving!) One says that this is a resource from a class, and the other says that this is a class. On 27 Apr 2013, at 19:13, Sebastian Hellmann <hellmann@informatik.uni-leipzig.de> wrote: > Hi Hugh, > > Am 27.04.2013 18:47, schrieb Hugh Glaser: >> Actually, your example <span its-ta-ident-ref="http://usefulinc.com/ns/doap#developer">someone who works on</span> is quite interesting as #developer is an rdf:property. This might actually be problematic later in RDF as it causes OWL Full, when used as an object. >> Ah - I think that is why I put it in - to see what happened :-) >> I was thinking of putting a Class in as well, but I guess that makes less difference. > > Classes are tackled with its-ta-class-ref . Named Entity Recognition and Linking (i.e class (Person, etc.) and entity link) are a much more common use case than relation extraction, which is why we included it from the start. This was a given separation done by language tools, any how. Making a distinction between instances, properties (object, datatype), classes and annotations is OWL specific, so the motivation+rationale comes from a different domain. > -- Sebastian >
Received on Sunday, 28 April 2013 09:50:06 UTC