XPost: alt.comp.os.windows-10, alt.home.repair   
   From: the_stan_brown@fastmail.fm   
      
   On Thu, 10 Aug 2023 14:43:42 -0400, micky wrote:   
   > They have computer programs that will "look" at, examine, x-rays etc.   
   > and find medical problems, sometimes ones that the radiologist misses.   
   >   
   > So it's good if both look them.   
   >   
   > But is it AI?   Seems to me it one slightly complicated algorith and   
   > comes nowhere close to AI.  The Turing test for example.   
   >   
      
   An algorithm would be programmed by some (presumably) human   
   programmer as, essentially, a list of rules to follow.   
      
   AI (old name: neural networks) is trained by being given a huge stack   
   of photographs that radiologists have previously examined and   
   pronounced "yes" or "no". The neural net makes guesses about whether   
   each picture is a "yes" or a "no", and somehow learns from its   
   mistakes, so that over time its accuracy becomes better and better.   
      
   While the training is simple in principle: pathways in the neural   
   network that led to a correct result are given a boost and those that   
   led to an incorrect response are depressed -- in practice the result   
   is so complex that nobody can determine what caused the NN to reach a   
   particular decision in a particular case.   
      
   Or, at least, that's how I understand it. A NN product was offered by   
   the company I used to work for, and the programmer explained it to me   
   that way. Nothing I've seen has told me it's different in principle   
   now, though I believe much bigger computers are being used, and with   
   most of the Internet as a training set. But does anybody know exactly   
   why an AI would answer questions like "Who holds the world speed   
   record for walking across the English Channel" with specific name,   
   date, and time? I don't think so.   
      
   --   
   Stan Brown, Tehachapi, California, USA         https://BrownMath.com/   
   Shikata ga nai...   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)