|To:||"[ontolog-forum] " <ontolog-forum@xxxxxxxxxxxxxxxx>|
|From:||Pat Hayes <phayes@xxxxxxx>|
|Date:||Wed, 27 Feb 2008 14:28:31 -0600|
At 3:17 PM -0500 2/27/08, John F. Sowa wrote:
Just to emphasize: in Cyc, 'microtheories' are now a central methodology, precisely because there is no "single concept scheme covering all things", but instead, concepts must be 'tuned' or 'fitted' to particular contexts or tasks or topics. The concept of nucleus for example has a lot in common between biology, atomic physics, astronomy and linguistics, but all these fields use the term with different exact meanings and emphases. Simply distinguishing bio-nucleus from physics-nucleus, etc., as distinct concepts, loses the commonality; treating them all as instances of one super-concept leads to confusion and inconsistency.
After 20 years (around 2004), they had defined an ontology with
We (a university-based consortium led by SRI) also beat Cyc in the RKF competition, largely because we used a graphical human interface rather then a text-based one. Natural language, it turns out, is a lousy way to communicate with a computer.
40 South Alcaniz St.
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