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Subject: Re: A curve fitting experiment with many chess evaluation parameters

Author: Dann Corbit

Date: 09:51:52 11/27/01

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On November 27, 2001 at 00:42:21, Stephen A. Boak wrote:
[snip]
>Unfortunately, I think, analysis by a single parameter at a time will not
>readily indicate the best overall combination of parameters (used in
>combination)--but it may stimulate ideas on how to best combine certain
>parameters.
>
>I contemplate that individually optimized parameters may not work well together.
> However, available time & resources naturally limit all experiments.
>
>The experiment will produce 'results'.  The 'meaning' of those results will be
>debatable, until further experiments attempt to utilize multiple parameters in
>combination.
>
>Nevertheless, I am interested in the experiment--what it is intended to gather,
>and what are the possible interpretations of the results.
>
>Good luck!
>Please let us know more--thanks for this interesting and thought provoking
>experiment.

Here is a post in the Winboard forum with some explanation:
http://f11.parsimony.net/forum16635/messages/18447.htm

There may be a sort of simulated annealing approach.  Clearly, the parameters
may interact.  However, as I iterate through the parameters from one depth to
the next, I keep the minimum calculated for the previous parameter.  So (in
theory) I might be seeking a gradient towards an optimum.  Of course, I might be
totally screwed up, since I don't really know how the parameters might interact,
or even if they combat each other.



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