----- Original Message -----
From: "Dave Dyer" <[email protected]>
To: "computer-go" <[email protected]>
Sent: Saturday, July 11, 2009 10:54 PM
Subject: [computer-go] Re: Dynamic komi in commercial programs
If you are in a lost position, "good play" is play that maximizes
the probability of a turnaround, which is quite different depending
on how far behind you are, and for what reason.
If the status of all the major groups is solid, then concentrating
on tactics which can gain a few points reliably might be the right
thing.
On the other hand, if the status of some groups is less than
immutable, then focusing on changing their status favorably might
be correct. It's hard to see how shifting Komi will influence
the style of play in this direction.
Dynamic komi in a sense means that the bot is deluding itself on purpose.
Obviously this is dangerous medicine, a kind of magic mushroom.
So what could be worse than a deluded bot?
I say, letting a monkey play could be worse.
And monkeys' play is what you get from an mc bot when all possible moves
come back with indistinguishably
wonderful or terrible win rates.
Adding a wishful (or pessimistic) komi will distort reality, but will help
create bigger win rate differences between moves.
It should be possible to assign costs to both dynamic komi and to
insufficiently spreading win rates between moves.
My hypothesis is, that with unstable groups on the board, the win-rate
spread will tend to be larger then with stable groups.
So with proper balancing, the bot should refuse to take dynamic komi when he
sees a chance to win outright.
Stefan
_______________________________________________
computer-go mailing list
[email protected]
http://www.computer-go.org/mailman/listinfo/computer-go/
