Some definitions for IVOAT?

Brian Thomas thomas at astro.umd.edu
Mon Dec 3 13:59:55 PST 2007


	Hi all,

	I took a stab at trying to do some exact matches between wordnet defs,
	and the concepts (using prefLabels) in the IVOAT. I got 780 matches,
	and generated an RDF file (in psuedo-skos) with the defs themselves.
	This file may be found at : http://archive.astro.umd.edu/IVOAT/wordnet_matches.rdf

	It is perhaps not suprising that there are many concepts which have multiple
	definitions, and these have to be trimmed down to unique values. This
	has yet to be done in the file which is listed above. 

	If there is any interest in merging these definitions into the IVOAT, then
	I would be happy to edit the copy down. I would also be happy to share the
	editing work with any other eager beavers interested in this aspect.

	One wrinkle I found from this is that there are not a few concepts where we
	might have need to specify their meaning further..in other words, there are
	several to many concepts which encompass more than one usefull (to astronomy)
	definition. An example of this :

 <skos:Concept rdf:about="#arc">
    <skos:definition rdf:parseType="Resource">
      <rdf:value>Electrical conduction through a gas in an applied electric field</rdf:value>
      <dc:source rdf:resource="http://wordnet.princeton.edu/perl/webwn?s=arc#n#1"/>
    </skos:definition>
    <skos:definition rdf:parseType="Resource">
      <rdf:value>A continuous portion of a circle</rdf:value>
      <dc:source rdf:resource="http://wordnet.princeton.edu/perl/webwn?s=arc#n#2"/>
    </skos:definition>
  </skos:Concept>

	The first concept def is unlikely, but possible, I think, especially in a vocabulary 
	which discusses instrumentation (!).

	=brian





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