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Re: [Bug-gnubg] An evalutaion of the pruning nets

From: Nis Jorgensen
Subject: Re: [Bug-gnubg] An evalutaion of the pruning nets
Date: Mon, 25 Oct 2004 20:32:30 +0200
User-agent: Mozilla Thunderbird 0.8 (Windows/20040913)

Øystein Johansen wrote:
> Jim Segrave wrote:
> | Given the enormous speed increase from the pruning nets, I am inclined
> | to agree with Joseph Heled that we should simply remove reduced
> | analysis.
> Me too! I also agree that the reduced evaluations can be removed. I
> believe that the "old" reduced evaluation gives more deviations from the
> "ordinary" nets than the pruning net reduction.

I still have my suggested "fractional ply" code lying around, which uses
the "reduced" settings. Not sure whether they can be merged with the
current code though.

I never got around to actually testing whether it was improving on the
playing strength. I have a hope that it can work in combination with the
pruned nets - together allowing us to achieve better playing strength in
the same timespan.

My compilation environment is broken, so it might take some time before
I can get this working again. And I still don't have a framework for
testing playing strength. But I would definitely be sad to see reduced
evaluation being removed from the code.

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