fuzzy logic

This is a discussion on fuzzy logic within the A Brief History of Cprogramming.com forums, part of the Community Boards category; hi, i know that this is not the right place for this thread, so forgive me i would really like ...

  1. #1
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    fuzzy logic

    hi, i know that this is not the right place for this thread, so
    forgive me

    i would really like to start with fuzzy logic, does anyone knows
    a book for begginers?

    i know C/C++, assembly for 8086, assembly for z80. are these
    enough for getting me start with fuzzy logic?

    thanks.

  2. #2
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    Just leave logic for five days and it goes fuzzy...
    Works with coffee.

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    The things you need to know depend on the things you want to do. If you want to control a process using a 8086, then you need to know about the 8086. Perhaps you need to know it's assembly, but C is enough for implementing a fuzzy control algorithm.

    There's a lot of online-documents about it. For example:

    www.iau.dtu.dk/~jj/pubs/logic.pdf

    Most good books I know about fuzzy logic are quite expensive. But there are some less expensive:

    An Introduction to Fuzzy Logic for Practical Applications
    K. Tanaka & Kazuo Tanaka
    € 61,92
    Paperback | Springer-Verlag Telos | USA Edition | 1996
    ISBN: 0387948074

    First Course in Fuzzy Logic
    Elbert A. Walker & Hung T. Nguyen
    € 100,64
    Hardcover | CRCS Publications | USA Edition | 1999
    ISBN: 0849316596

    There are many more books, but these are quite good introductions to fuzzy logic. If you don't want to spend much money on books, there's a lot of good info on the internet.
    Last edited by Shiro; 03-10-2002 at 09:42 AM.

  4. #4
    ¡Amo fútbol!
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    What is fuzzy logic?

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    Registered User Aran's Avatar
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    i believe it is logic that involves more than 1 and 0.. true and false.. right and wrong.

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    The 'normal' logic we use in computerprograms is binary, a condition is TRUE or it is FALSE. In fuzzy logic a condition can also be a little TRUE or a little FALSE.

    Take for example the control of temperature in a process. In a simple on/off system we would have a algorithm which could look like:

    If the temperature is too low, then turn heating on,
    else turn heating off.

    In fuzzy logic, a control rule could be:

    If the temperature is a little bit too low, then turn heating a little bit on.

    Fuzzy logic comes near human reasoning. If you take a shower and you are mixing the cold and hot water, you'll think by yourself: "hmmm, it's a bit too cold, let's get some more hot water.' And this process goes on until you've got the preferred temperature.

    In fuzzy logic there are memberfunctions which are used to determine if a condition is TRUE, a little less TRUE, much less TRUE etc.

  7. #7
    Hamster without a wheel iain's Avatar
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    esentially in predicative logic there are two states TRUE, FALSE
    fuzzy logic allows combinatorial logic - ie something is 80 true and 20 false.
    Monday - what a way to spend a seventh of your life

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    cool, thanx for explaining.

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    Linguistic Engineer... doubleanti's Avatar
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    hm... that means that it's _still_ determinstic... though weighted... dang... i would have figured in the past that it wasn't, that it had a sureal element which could not be explained... shucks...
    hasafraggin shizigishin oppashigger...

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