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Subject: Re: move ordering

Author: Robert Hyatt

Date: 21:35:15 05/11/03

Go up one level in this thread


On May 10, 2003 at 21:23:00, Omid David Tabibi wrote:

>On May 10, 2003 at 20:32:10, Matthias Gemuh wrote:
>
>>On May 10, 2003 at 17:49:01, Mike Siler wrote:
>>
>>>When Sjeng finishes a search, it displays among its stats a move ordering
>>>percentage. Does anyone know how this is calculate?
>>>
>>>Michael
>>
>>
>>In most programs, it is the ratio FailHigh_on_fist_move/All_FailHighs.
>>
>
>Why not use a more general figure:
>ratio of "first move being the best" / "all (interior) nodes" ?

on "fail low" (or "all nodes") you don't fail high.  You would simply
be artificially lowering the move ordering "score"...

Move ordering only needs to be good on nodes where you will fail high,
otherwise move ordering is irrelevant...


>
>
>
>>/Matthias.



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