Fuzzy facts in clips

clips, fuzzy-logic

Solution

By having overlapping ranges it kind of makes sense. But maybe overlapping isn't what you want to do. What about:

(deftemplate fz-knowledge
0 100
( (low (20 1) (40 0))
  (high (60 0) (80 1))
  (med   NOT [ low OR high ] )
))

That way, you can clearly tell when a score is low, or high, and the loosy-goosy `med` just fills in the cracks.

Problem

I made a fuzzy template that will represent a student's knowledge in a certain domain. Problem is that upon declaring a student `John` as `low`, he will also be declared as `med` because low students are also med between 30 and 40. How can I declare a student as being `low`, without being `med`? Note that I know I can do something like `(student (name John) (knowledge (20 0) (21 1) (22 0)))` , but what if I want to declare him using the fuzzy value? ``` (deftemplate fz-knowledge 0 100 ( (low (20 1) (40 0)) (med (30 0) (50 1) (70 0)) (high (60 0) (80 1)) )) (deftemplate student (slot name) (slot knowledge (type FUZZY-VALUE fz-knowledge)) ) (deffacts students (student (name John) (knowledge low) ) ) ```

Original source