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Subject: Re: Fritz5 disaster !

Author: Ernst A. Heinz

Date: 08:09:44 03/03/98

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On March 03, 1998 at 10:35:49, Robert Hyatt wrote:

>Not necessarily.  IE what would you expect if You entered "X" in a
>tournament
>and it played me (me, Bob Hyatt, not me, Crafty) and I won.  And the
>next week
>we meet again, same colors, and I play the same opening and win again?

We are not talking about only the same openings but about complete
doubles
which translate to identical samples from the viewpoint of statistics.

>I call that stupid programming.  "doubles" are something that a good
>program
>avoids if it is losing those games, And I think that statistically, it
>is
>something that probably evens out except for those programs that learn.
>But
>even a learner will play doubles since the "learning" isn't going to be
>shared (with crafty, it can be shared, but it is doubtful that anyone
>doing
>SSDF testing would take the time to do so).

Yes, the disturbances caused by identical samples (doubles) will
eventually
even out if their overall ratio decreases steadily over time with ever
more
games (samples) being played.

Has anybody shown or at least investigated this?

If not, according doubts seem to be perfectly okay.

=Ernst=



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