avenger@caen.engin.umich.edu (Aaron Paul Williams) (12/19/90)
Could someone either mail me or post what exactly is fuzzy logic. Thanks. Aaron P. Williams avenger@caen.engin.umich.edu [Moderator's Note: That's what they say is wrong with my thinking most of the time, particularly when discussing slamming. Care to come over and do a brain scan to get more background on the matter? The grey matter, that is. PAT]
billg@uunet.uu.net (Bill Gundry) (12/20/90)
From article <15480@accuvax.nwu.edu>, by avenger@caen.engin.umich.edu (Aaron Paul Williams): > Could someone either mail me or post what exactly is fuzzy logic. > Thanks. > [Moderator's Note: That's what they say is wrong with my thinking most > of the time, particularly when discussing slamming. Care to come over > and do a brain scan to get more background on the matter? The grey > matter, that is. PAT] Fuzzy Logic is design methodology originated at UC Berkeley. It basically attempts to solve problems by making decisions based on input's value "degree of membership" in a defined set. An example is that of an air conditioning system. The input value, temperature, would be evaluated as HOT, COLD or WARM, not so much as a absolute value above or below a set point. The designer defines the parameters of HOT, COLD, and WARM using the X axis for the input value and the Y axis as the "degree of membership" of the value for the particular set on a scale of zero to 1. An input value of 68F may evaluated as .9 in the WARM set, and a control condition may then be activated. These rules are usually "anded" together for different input values to evaluate and respond to conditions. Proponents of fuzzy claim faster and smoother response to stimula resulting in better system effeciency, less energy, smoother operation etc. There is much more to it, but I don't think this is the right group for detailed discussion(as much as I enjoy reading it!). As this is more popular in Japan than in the US I don't think that there is newsgroup for it, perhaps comp.misc. Bill Gundry Hitachi America - Semiconductor & IC Div. ...uunet!hitachi!billg