Re: [computer-go] RAVE in MoGo paper
Hi, 2007/10/8, Benjamin Teuber [EMAIL PROTECTED]: Hi everybody - especially Sylvain =) I'm wondering whether the formula to determine the balance between RAVE and UCT, beta = sqrt(c / 3 * parentVisits + c), has any mathematical background - or is it just a best guess for something that starts at 1 and is 1/2 after a certain number of visits? No it is just a tuning :) Another question is about the prior integration. Apparently the prior, RAVE and UCT values are three different estimators for the winning probability. So why not use the above formula for prior vs. RAVE balancing, too, instead of initializing RAVE with it? Our prior is actually classical and equivalent to a Dirichlet prior for the RAVE value. Of course we could put the prior in other ways, put I strongly believe that at this point the relevance of the prior is more important that the way you use it. Cheers, Sylvain ___ computer-go mailing list computer-go@computer-go.org http://www.computer-go.org/mailman/listinfo/computer-go/
[computer-go] Mertin's private 9×9 19×1 9 tournament
Hello all, is something known about this tournament yet? In http://www.computer-go.info/events/future.html is stated that this tournament would take place this year in Germany, but so far no news. Does somebody have more information? Edward _ Probeer Live.nl Probeer Live.nl: zoekmachine van de makers van MSN! ___ computer-go mailing list computer-go@computer-go.org http://www.computer-go.org/mailman/listinfo/computer-go/
Re: [computer-go] Mertin's private 9×9 19×19 tournam ent
In message [EMAIL PROTECTED], Edward de Grijs [EMAIL PROTECTED] writes Hello all, is something known about this tournament yet? In http://www.computer-go.info/events/future.html is stated that this tournament would take place this year in Germany, but so far no news. Does somebody have more information? This is Stefan Mertin. He runs tournaments by getting copies of go-playing programs and playing them against each other. He has told me of his plans to run one this year, but he may have decided that with CGOS working so well, it would be superfluous. He has posted to this list, so let's hope he sees this thread. Nick -- Nick Wedd[EMAIL PROTECTED] ___ computer-go mailing list computer-go@computer-go.org http://www.computer-go.org/mailman/listinfo/computer-go/
Re: [computer-go] Former Deep Blue Research working on Go
2007/10/9, Eric Boesch [EMAIL PROTECTED]: On 10/8/07, Tapani Raiko [EMAIL PROTECTED] wrote: May sound unpolite. But Deep Blue reached a very important step in IA. They will be known for ever. But, from a research point of view, they didn't much really. It was mainly a technological/technical achivement. Maybe they will reimplement Mogo, try a null-move tweak, use a supercomputer, and claim to have the strongest computer Go player ever. :-) Naive null move is unhelpful because throughout much of a go game, almost every move is better than passing, I think this is not the point of null move. Null move is if pass is good enough to an alpha cut, then will be a _better_ move. It is not important if pass is the worse move, is important that there is a better (=) move than pass (not zugzwang). Then you bet searching not so deep. But null nove is not a trick in Go, because pass is always a legal move. There isn't zugzwang in Go. Andrés Sorry my bad english ___ computer-go mailing list computer-go@computer-go.org http://www.computer-go.org/mailman/listinfo/computer-go/
Re: [computer-go] Former Deep Blue Research working on Go
2007/10/10, Don Dailey [EMAIL PROTECTED]: Andrés, You are right about null move of course. The assumption that other moves are = to the value of a pass is much stronger in GO than in Chess, yet ironically it's not as effective in Go. That was what i was trying to say. Pass is one of the worst moves (except final) is good for null-move on Go. Of course you have reduced depth, probably bad with alpha-beta with a bad evaluation function, but looks interesting with UCT reducing the number of simulations and increasing the % value. I don't use UCT, so I haven't tried it. Andrés ___ computer-go mailing list computer-go@computer-go.org http://www.computer-go.org/mailman/listinfo/computer-go/
