- From: Jorge Gracia <jgracia@fi.upm.es>
- Date: Fri, 10 May 2013 13:15:07 +0200
- To: John McCrae <jmccrae@cit-ec.uni-bielefeld.de>
- Cc: Philipp Cimiano <cimiano@cit-ec.uni-bielefeld.de>, public-ontolex <public-ontolex@w3.org>
Hi John, > Firstly, we should bear in mind that SKOS is not an ontology: Well, ontologies are resources representing the conceptual model underlying a certain domain, describing it in a declarative fashion cleaningly separated from procedural aspects [1]. In that sense, and also in Grubber's traditional definition [2], SKOS models can be considered ontologies. Although, of course, they are not "formal" ontologies (the spectrum of formality is wide, as in Lassila's classification [3]). > As such, we have two ways to go as a group. We could be in the very > prescriptivist camp of saying "SKOS models are not ontologies, we should > explicitly tell people they have to link to SKOS models differently". > Alternatively, we could be in the permissive camp "Many people use SKOS as > ontologies, we should accommodate this... (and SKOS is close enough to > ontologies that the difference does not really matter)". This is therefore > just a question of documentation, and perhaps the best solution is to say > nothing at all (the prescriptivists aren't upset and the permissivists are > not disallowed). Yes, I agree that is the best option (avoid commitments to any view), although we still have to decide which domain/ranges will have our ontology-lexicon mapping properties (so some commitments made). > Stated equivalence between symbols, e.g., (onto:SamuelClemens owl:sameAs onto:MarkTwain) > Inferred equivalence between symbols, e.g., (onto:Yeti ≡ ⊥ ∏ GreatestNaturalNumber ≡ ⊥ ⊨Yeti ≡ GreatestNaturalNumber) I am not sure if you can entail that two concepts are the same if they share the same (empty) set of instances. Regards, Jorge ---- [1] Philipp Cimiano. Ontology learning and population from text: Algorithms, evaluation and applications. Springer, October 2006 [2] Thomas R. Gruber. Toward principles for the design of ontologies used for knowledge sharing. International Journal Human Computer Studies, vol. 43, pages 907-928, November 1995. [3] Ora Lassila & Deborah L. McGuinness. The Role of Frame-Based Representation on the Semantic Web. Technical report, Knowledge Systems Laboratory Stanford University, KSL-01-02, 2001
Received on Friday, 10 May 2013 11:15:51 UTC