[computer-go] KO in Hashtable-UCT?

[Peter Drake]

The first option is what we do, too.

Peter Drake
http://www.lclark.edu/~drake/



On May 19, 2007, at 5:30 AM, Don Dailey wrote:

> On Sat, 2007-05-19 at 12:32 +0200, chrilly wrote:
>>>
>>> In the play-outs, I'm pretty sure infinite play-outs due to not  
>>> using
>>> superko are possible - even with the randomness.    But I have a  
>>> limit
>>> on the length of the play-out games because when you use heavy  
>>> play-outs
>>> the games can occasionally last for hundreds of moves.
>> How do you evaluate a game which is stopped by reaching the length- 
>> limit?
>> In UCT-Suzie I stop also when one side has a big material advantage
>> (captured much more stones). The length limit is related with  
>> this, because
>> when a big group is captured the empty points are afterwards  
>> filled up
>> again.
>
> It's a rare occurrence that I have to stop a game early - but when  
> I do
> I simply score the board assuming all stones are alive.
>
> Another thing you could do (if you're the anal type) is to finish the
> game after a certain point with the superko rule turned back on.  You
> would start having to track the keys again.   But this almost seems
> silly because a random game is only a guess anyway.
>
>> Chrilly
>>
>
> _______________________________________________
> computer-go mailing list
> computer-go at computer-go.org
> http://www.computer-go.org/mailman/listinfo/computer-go/

-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://computer-go.org/pipermail/computer-go/attachments/20070519/4fec6235/attachment.htm