Re: [Bug-gnubg] Forwarded suggestion from the website

[Joseph Heled]

Jim Segrave wrote:
> On Tue 26 Oct 2004 (23:58 +0200), ??ystein Johansen wrote:
>
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> > - ----8<----
> > Maik Stiebler wrote:
> > Congratulations to this new improvement!
> > Have you considered to use the pruning net as evaluation engine for
> > variance reduction on 0-ply rollouts? Right now I don't use VR on those
> > because it's so expensive relative to the rollout itself. If the pruning
> > net is good enough, that might be much more effective.
> > - ----8<----
> >
> > Heeeeyyyy! What a great idea!
> >
> > I know for sure I won't have the capacity to take this task right now.
> > (Even though I would love to). Anyone?
> >
> > It sure sounds like a great idea to me!
>
>
> I thought Joseph said they only come into play on .gt. 0 ply rollouts
> (they speed up the selection of candidates for the next ply), so
> they'd have no effect on zero ply rollouts.

Yes. but I think the suggestion is to use them for VR. fortunately, they are not 
good enough for that.

BTW, one day I may understand VR and find a method that works. While I have seen 
many people discuss it and lots of hand waving, I never saw it work - i.e. where 
for a fixed time T  it produces a better result than simply doing more trials.

Please, someone prove me wrong ...

-Joseph