Thanks John and Jenny (01)
Only Google can test the validity of Rudi's theory (02)
I am reading two papers, which take a slighlty different approach (03)
http://avalon.ira.uka.de/iaks-calmet/papers/AT2AI4.pdf (04)
and (05)
Metrics for Objective Ontology Evaluations
DOI 10.1007/0-387-29248-9_11
Book Series IFIP International Federation for Information Processing
Volume Volume 188/2005
Book Industrial Applications of Semantic Web
Authors Robert J. Pefferly, Michael C. Jaeger and Moussa Lo
Subject Collection Computer Science
Abstract ...statistical measures are a necessity; yet very few
ontology based standards mention quantifiable measures such as
entropy, data encapsulation, complexity, efficiency, evolution, or
redundancy. We...
Text PDF (506 kb) (06)
Pdm (07)
On 8/28/07, John F. Sowa <sowa@xxxxxxxxxxx> wrote:
> Jenny,
>
> There are many caveats, but the following is an advantage
> rather than a caveat:
>
> > the same extraction process will provide different results
> > over time - ie a snapshot of an evolving process
>
> Just imagine the shift in co-occurrence patterns for 'automobile'
> and 'horseless carriage' over the past century, 'transistor' and
> 'vacuum tube' over the past 50 years, or 'CRT' and 'LCD' over
> the past 10.
>
> Such techniques are complementary to formal definitions and axioms.
> And I would say that the term 'snapshot' is more appropriate for
> the formal definitions: axioms very precisely characterize one
> particular definition at one instant in time -- such as 'automobile'
> in 1907, which would not be appropriate for 1957 or 2007.
>
> > Goguen... argued instead that if the need for conceptual diversity
> > is accepted, it then follows that 'knowledge engineering should
> > seek ways to support it, rather than ways to overcome, suppress,
> > or subvert it' by providing 'support for multiple evolving
> > ontologies for single domains, accepting that translations among
> > such theories will necessarily be partial and incomplete and
> > providing tools to help construct such partial mappings'.
>
> I agree with everything in that passage except the word 'if'.
> For languages, technology, and people, the absence of change
> is death.
>
> The Académie française tried to freeze the French language as it
> was in 1635. The result was a large discrepancy between the written
> and spoken forms, and it became very difficult for French to adapt,
> evolve, and accommodate new developments. There was always a long
> lag between any innovation and the appearance of an official term
> in the official dictionary. When official terms did appear, they
> were ignored by French speakers, who had already coined their own,
> usually more colorful and meaningful, terms.
>
> English, on the other hand, was blessed with the absence of any
> official authority over the language and with multiple English-
> speaking countries that had no desire to yield to a foreign
> authority, even if any did exist. As a result, English freely
> accepted and borrowed innovations and extensions from every
> imaginable source.
>
> I don't believe there is any dispute about which approach has
> proved to be the more robust, flexible, and successful.
>
> John
>
>
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> (08)
--
Paola Di Maio
School of IT
www.mfu.ac.th
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