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Re: [ontology-summit] Criteria for evaluating ontologies at different le

To: ontology-summit@xxxxxxxxxxxxxxxx
From: John F Sowa <sowa@xxxxxxxxxxx>
Date: Sun, 30 Dec 2012 00:27:21 -0500
Message-id: <50DFD0B9.2090402@xxxxxxxxxxx>
Dear Matthew,    (01)

In an earlier note, I said that our disagreements seemed to be about
a choice of words.  And indeed, after examining your ontology, my
complaints vanished.  I might quibble about some of the details,
but the general organization of your ontology looks OK.    (02)

JFS
>> Can you post that ontology on the wiki or other web site?    (03)

MW
> The data model (but not the explanation) is available on the web at:
> http://homepages.rya-online.net/matthew-west/hqdm_framework/    (04)

In my complaints about the word 'individual', I thought you were using
it as a metalevel term for talking about the ontology.    (05)

But I see that you use the word 'individual' as a name for a category
in your ontology with the following informal definition:    (06)

Definition of 'individual' in the HQDM Framework:
> A spatio_temporal_extent that is not a proper temporal_part_of any
> other individual of the same kind.  Note: In standard mereology
> a spatio_temporal_extent is a part of itself. Parts of an individual
> excluding itself are called proper parts.    (07)

The point I was trying to make is that the *metalevel* terms should
be limited to the words used to describe the syntactic units of the
logic -- eg, 'relation', 'quantifier', 'variable', 'Boolean operator'.    (08)

I would not recommend the word 'individual' as a metalevel term.
But if you want to make it the name of a category in the ontology,
that's your prerogative.    (09)

But you still have to relate those terms in the upper level ontology
to the words that the domain experts or SMEs use to talk about their
subject.  I agree with Doug Lenat that the mid level and lower level
ontology is the most important for applications.    (010)

John    (011)

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