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Subject: Re: Missing masses of information and Minimax musings

Author: Dave Gomboc

Date: 00:45:51 06/22/99

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On June 21, 1999 at 21:49:44, Dann Corbit wrote:

>On June 21, 1999 at 20:56:01, Dave Gomboc wrote:
>[snip]
>>You already have the leaf values computed, so the proposed algorithm is
>>inefficient.  Simply do a depth-first search (with cycle detection) and backup
>>scores in a minimax fashion.  Now it takes one pass through the items.
>Is minimax valid when we have missing data points?  I don't want to have to
>generate the billions of missing nodes.
>
>I could use Alpha/Beta cutoff, for that matter (if it works).

Keep track of the computed score for a position separately from the backed-up
score for a position.  If they differ significantly, an important alternative
was overlooked.

Dave



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