[Computer-go] replacing dynamic komi with a scoring function

[David Fotland]

middle game playouts are far out of the joseki library, and in any case the
joseki library moves are not used in the playouts, only the uct tree.

David

> -----Original Message-----
> From: computer-go-bounces at dvandva.org [mailto:computer-go-
> bounces at dvandva.org] On Behalf Of steve uurtamo
> Sent: Sunday, January 08, 2012 8:23 PM
> To: computer-go at dvandva.org
> Subject: Re: [Computer-go] replacing dynamic komi with a scoring function
> 
> even with the joseki libraries, MCTS prefers center?
> 
> that seems to favor the idea of center actually being good.
> 
> s.
> 
> On Sun, Jan 8, 2012 at 8:13 PM, David Fotland <fotland at smart-games.com>
> wrote:
> > Yes.  That's why MCTS prefers the center.  Sometimes the playouts let an
> > invasion work, so corner territory is not evaluated as being as secure
as
> it
> > should be.  It seems easier for MCTS to kill groups in the center in the
> > playouts.
> >
> > David
> >
> >> -----Original Message-----
> >> From: computer-go-bounces at dvandva.org [mailto:computer-go-
> >> bounces at dvandva.org] On Behalf Of steve uurtamo
> >> Sent: Sunday, January 08, 2012 8:03 PM
> >> To: computer-go at dvandva.org
> >> Subject: Re: [Computer-go] replacing dynamic komi with a scoring
function
> >>
> >> underestimation?
> >>
> >> s.
> >>
> >> On Sun, Jan 8, 2012 at 7:30 PM, Yamato <yamato_cg at yahoo.co.jp> wrote:
> >> > (2012/01/09 9:56), Jouni Valkonen wrote:
> >> >>
> >> >> There is indeed a problem with Dynamic komi with Zen. Zen often
loses
> >> >> the handicap games if black tries to minimize the move count. Often
if
> >> >> it is possible to bring game to small yose in around move 180 or so
> and
> >> >> if not too much behind, then Zen most likely will lose. I have
played
> >> >> few games where Zen noted only when filling last dames that it is
> > losing
> >> >> the game by few or half points and then resign. Although, one game
was
> >> >> that I lost by ½ points, because I accidentally defended
unnecessarily
> >> >> instead of taking the last dame. One game was that i was about ten
> >> >> points behind around move 180, but then Zen played a slack small
yose,
> >> >> and lost by 2½ points. Also good and very easy strategy against zen
in
> >> >> handicap games is to take all the sides and give center territory to
> > the
> >> >> Zen. Zen almost always will take the center territory as too small
and
> >> >> gives sides as too big.
> >> >
> >> >
> >> > I think people often confuse the evaluation problem and the dynamic
> komi
> >> > problem. A more urgent problem is the underestimation of the edge and
> >> > corner territory.
> >> >
> >> > --
> >> > Yamato
> >> > _______________________________________________
> >> > Computer-go mailing list
> >> > Computer-go at dvandva.org
> >> > http://dvandva.org/cgi-bin/mailman/listinfo/computer-go
> >> _______________________________________________
> >> Computer-go mailing list
> >> Computer-go at dvandva.org
> >> http://dvandva.org/cgi-bin/mailman/listinfo/computer-go
> >
> > _______________________________________________
> > Computer-go mailing list
> > Computer-go at dvandva.org
> > http://dvandva.org/cgi-bin/mailman/listinfo/computer-go
> _______________________________________________
> Computer-go mailing list
> Computer-go at dvandva.org
> http://dvandva.org/cgi-bin/mailman/listinfo/computer-go