[computer-go] Re: Move Prediction and Strength in Monte-Carlo Go

["荒木伸夫"]

Hello.

Hi,

>I would like to confirm your experiments: I have noticed already that 
>adding shapes of radius > 4 improves prediction a lot, but does not 
>improve playing strength (from progressive widening).
I have not yet tuned progressive widening. This information is helpful for my experiments from now.

>Also, even worse than that, for a given set of features, the pattern 
>urgencies computed by MM are not optimal. That is to say, it is possible 
>to manually tweak urgencies and get a stronger program.
Oh, really!? This is great information. I'll try.

>So, as Gian-Carlo puts it, optimizing a Go program is still black magic. 
>There is no way to avoid playing games to measure playing strength.
O.K. I'll pay attention to this information. 

Thank you very much for much information.

Nobuo Araki