Re: Fuzzy Pattern Recognition

WSiler (wsiler@aol.com)
Sat, 6 Jun 1998 23:24:38 +0200 (MET DST)

You wrote:

> Actually, the number of possible rules grows exponentially with >the number
of inputs, i.e. n inputs with m fuzzy sets -> m^n rules.

I had posted a reference to the Combs method, by William Combs of Boeing in
Seattle, which enables the number of rules to increase linearly with the number
of variables rather than exponentially. Unfortunately, the Combs method has
received the same treatment among fuzzy persons that fuzzy math has received
among non-fuzzy persons; i.e., nearly total inattention.

While the Combs method seems quite counter-intuitive, I tried it out, and it
works! There is a recent article in PCAI which describes the method briefly,
and Combs has a chapter coming out in Earl Cox's new book which goes into more
detail.

William Siler

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