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Re: [ontolog-forum] Grover Models

To: <ontolog-forum@xxxxxxxxxxxxxxxx>
From: jmcclure@xxxxxxxxxxxxxx
Date: Wed, 22 May 2013 21:34:26 -0700
Message-id: <f5ed343a5764f0732a7de58ffee476e4@xxxxxxxxxxxxxx>


I really appreciate the amount of your time and the depth of your responses to my questions - you've sharpened my understanding of a few things (and thanks  for the name inspiration). I hope you benefitted also.

  • Grover is a vocabulary of properties - of prepositions plus tenses of 'to-have'
  • explicitly built atop RDF's model ..... "a Resource instance HAS instances of Properties"
  • with "loosely-coupling predicates" to reduce the size of ontologies, their costs and scariness
  • A vocabulary intentionally trivial for anyone to self-master
  • A vocabulary intentionally suitable for modelling document content
  • Grover is a vocabulary of categories - of adjectives & adverbs
  • that uses a highly useful naming scheme... type:topic-name ... (see ISO Topic Maps)
  • that implements the syntax seen here eg past(Statement) must(Statement) etc

John Sowa's right that "RDF and most versions of logic are not polymorphic" meaning that prepositions' semantic rules would, under Grover, depend on the types of subject & predicate nodes present in a triple. But I don't use a property's name/range/domain as validation criteria, I see them as indexes to the formalisms, in other words, I presume the validity of relationships, looking up applicable formalisms as needed -- I think that's what's meant in part by an open-world model.

So, as 'polymorphic properties' seem Sowa's only technical concern, and as I expect little effort dealing with those, I see no impediment to bringing a Grover front-end to my semantic wikis. To the extent he & others believe that Grover is not a recommended practice, that ontologies need to be heavier than what I envision, suggests there's much for us all to learn in the future. For the present, I'll stop this thread.

Thanks again - jmc


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