On 02/22/2013 07:21 PM, Ian Kelly wrote:
On Fri, Feb 22, 2013 at 4:41 AM, Chris Angelico <ros...@gmail.com> wrote:
That's not artificial intelligence, though. It's artificial program
generation based on a known target output. The "Fitness" calculation
is based on a specific target string. This is fine for devising a
program that will produce the entire works of Shakespeare, since there
is a target string for that (actually, several targets, plus you have
to work out whether you want the works of Shakespeare or the works of
some guy named Bacon... mmm bacon), but I suggest that a more
sophisticated and useful goal be implemented.
Indeed, it seems to me that this is basically Richard Dawkins' weasel
program, with the addition of a transformation step in the fitness
function that amounts to running the string through a Brainfuck
interpreter. There is a rather large gap between this and getting
computers to generate programs that do anything interesting.
I am curious about how he deals with infinite loops in the generated
programs. Probably he just kills the threads after they pass some
time threshold?
I'm under the impression that Python doesn't really allow you to kill a
thread after a time period.
It's not portable to do so....
http://eli.thegreenplace.net/2011/08/22/how-not-to-set-a-timeout-on-a-computation-in-python/
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