Response to Marc Hoffman's query on Fuzzy in Lisp

Bob Dalton (red@swl.msd.ray.com)
Thu, 18 Nov 1999 15:08:36 +0100 (MET)

Marc: I tried to use your e-mail address, but it didn't work.

I've written some fuzzy pattern recognition programs in
Commonlisp/CLOS, including

1. fuzzy c-means;
2. Dempster-Shafer [necessity, possibility] intervals
for Bayesian conditional recognition probabilities;
3. Fuzzy parsimonious covering for diagnosis.

I'm currently converting (2) to C++, since I lack a good
(Commonlisp/CLOS) compiler here. Later, I hope to convert
c-means as well.

References:
1. Dalton, R. E., "Object recognition with possibilistic
support intervals," Proc. Int. Conf. Moving toward Expert
Systems Globally in the 21st Century, Lisbon/Estoril,
Portugal, 10-14 January, 1994 (Elmsford, NY USA Cognizant
Communications Corp. (1994), pp. 164-168.
2. Dalton, R. E., "Towards a theory of fuzzy causality for
diagnosis," Inf. Sci. B 80(1993), pp. 195-212.

Let me know if you're interested in the Lisp code. If so,
let me know your affiliation.

Regards,

Bob Dalton

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Robert E. Dalton email: red@swl.msd.ray.com

Raytheon Systems Co. M/S: T3MJ21 voice: (978) 858-5927

50 Apple Hill Drive, Tewksbury, MA 01876

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