>>> John Boone on Fuzzy Sets
WE> Now if I were to take apple to mean a whole apple, it wouldn't belong.
JB> Ok, now take, an "whole apple" but showing some signs of
JB> wear, rot. Does it belong to the set "whole apple?"
Nope, it is not whole. To be pedantic, the short small connecting stem if
attached, cannot be broken. -)
JB> For example, in smelting, it might take temperature
JB> to be raised "a bit" to increase efficiency. How much
JB> is "a bit" on the Temperature scale?
This is a classic application, but alas, I've just glanced at it. Public
library is weak on this topic. If you have a detailed description of a
thermostat control application we could eke out an answer. That would be an
excellent fuzzy start for us.
WE> Consider also green apples.
JB> I see you took my example .
Racer who jumps the gun is off to a fuzzy start? -)
JB> Kosko, makes the point, fuzzy allows us say a glass belongs
JB> to the set "cup" a bit while belong to the set "glass" more.
Indeed, but ask him to tell you about buckets and leaky cups and how big of a
hole my fuzzy bucket may have and if a tube is nearly a bucket with a hole
for the bottom and hence a fuzzy cup. Now consider a tall and narrow bucket
with a hole for the bottom, what degree of cup would you assign to a hose? -)
How about the saucer? How about a flat disk which is a cup with just the
bottom remaining? Ask him to assign precise degrees of cuppishness.
Language can always outstrip the precise syntactics of mathematics. Is there
something paradoxical about assigning a -precise- degree of whateverness to a
fuzzy notion of -somewhat- like the whatever. -)
... from the marsh, the freshest of stagnate water.
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