Fuzzy Sets or defuzzified crisp values


Subject: Fuzzy Sets or defuzzified crisp values
From: Otto Cordero (ocordero@cti.espol.edu.ec)
Date: Thu Oct 19 2000 - 08:52:40 MET DST


Hi, i need some advise on this issue...
I am using linguistic terms for my expert system in wich each linguistic
term is associated with a fuzzy set, but, operations of reasoning becomes
quite more complicated if performed over fuzzy sets than if i use
defuzzyfied those sets before (with centroid of area for ex.) to get crisp
values and then operate on those.
My question is, in general, what do i loose if i defuzzyfy sets before and
use crisp values instead of fuzzy sets, what are the pros and cons...?
thanks.

Otto

=========================================
Otto Cordero
Centro de Tecnologías de Información - ESPOL
Campus Prosperina
Telf: 269 - 775
e-mail: ocordero@cti.espol.edu.ec
http://www.cti.espol.edu.ec
=========================================

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