Agenda for DC&P session at Interop

[Frederic V. Hessman]

The SKOS examples that the semantic group has considered has everything you want except antonyms.  Not obivous how useful antonyms will be for the IVOA:  what's the antonym of a galaxy or spectrum?  Well, radio-quiet QSO's are, in some sense, antonyms of radio-loud QSO's, but that's the only example I can think of off-hand and the oppositeness is pretty superficial.

Rick

On 18 May 2012, at 16:49, Brian Thomas wrote:

> On Thursday, May 17, 2012 08:59:52 PM Alberto Accomazzi wrote:
> > Ok, let me try to be more specific: is there somebody willing to 
> > speculate armed with a few slides?  I was thinking of Matthew's 
> > experience with the Biologists and SIMBAD object types and how this may 
> > translate to thesaurus use.
> 
> Well, I use an astronomy dictionary (of my own devising) to determine information 
> content (IC) which allows me to merge various astronomy ontologies. This is critical 
> for me, because  I need to automate the building of a subject ontology (for resolving 
> searches of the registry). Its simply too big a job to do by hand, and without the bridging 
> ontologies which I merge in, the subject ontology comes out pretty flat (e.g. not very useful).
> 
> So, IMO, I think the direction of the project you are discussing should be towards a 
> user-shared 'dictionary' (e.g.has synonyms, antonyms, hypernyms and possibly hyponyms) 
> rather than simply a 'thesaurus' which makes me think it will only have synonyms). To 
> determine the IC between two terms (e.g. how semantically similar they are) you need
> to have both synonyms and hypernyms, at minimum.
> 
> Cheers,
> 
> -brian
> 
> 

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