I dont know how the email group work. If someone keeps receiving emails out of
interest, please notice me.
Thanks Bryan for the suggestion, it's nice to know, however Im not able to
afford upgrading now.
And Matthias, for your notice of the spawning process
```
(define (randomise-over-fitness accumulated-payoff-percentage population speed)
(for/list ([n (in-range speed)])
[define r (random)] ;; SHOULDN"T THIS LINE BE OUTSIDE OF THE for/list
COMPREHENSION?
(for/and ([p (in-list population)][a (in-list
accumulated-payoff-percentage)]
#:break (< r a))
p)))
```
The randomly generated r has to be inside the for/list loop. Because if it's
outside, then there is only one random number generated at the beginning, and
the newly spawn automata will keep being the same one repeatedly.
For example, when the learning speed is s = 10, it means that, 10 old automata
should be replaced with 10 new ones. And the replacement should be done in 10
different places in the population.
This procedure is called an independent bernoulli draw. We independently draw a
random number (associated with an automaton) for 10 times. How likely an
automaton is chosen depends on its own fitness (its interval in the unit scale
of the accumulated percentages.)
On Monday, 12 October 2015 03:46:05 UTC+2, Matthias Felleisen wrote:
> I have pushed some more cleanups, more speed.
> I added another question to the “spawning” procedure.
>
>
>
>
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