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RE: [Bug-gnubg] One-sided database - Help Analysis Speeds?

From: Ian Shaw
Subject: RE: [Bug-gnubg] One-sided database - Help Analysis Speeds?
Date: Fri, 2 Dec 2005 09:22:34 -0000

> -----Original Message-----
> From: Øystein Johansen
> Sent: 01 December 2005 17:49
> Lukas Bradley wrote:
> > Will the one sided database help on analysis?  Or is it 
> only good for 
> > playing?
> The race neural net is really close to 'just as good', and 
> the race neural net is much faster than accessing a database 
> on the harddrive.
> You can of course make a bigger database for longer races. I 
> believe it will work for both analysis and play. It's 
> documented in the code.
> I suggeest you stick to the one sided bearoff database 
> (default) in memory.
I agree with Øystein, but would add that you can speed up rollouts 
(particularly 2-ply) if you select to stop at the databases. 

Also, the databases are the only way to see the effective pip count, so they 
are great if you use epc methods for evaluating races.

-- Ian

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