So, the current strong programs are more like AMAF instead of UCT, right? Fuming
On Sat, Jan 1, 2011 at 11:32 AM, David Fotland <fotl...@smart-games.com>wrote: > I still have a UCB term, but it's probably because I depend more on Many > Face's move generator. I have a rave term, but it's contribution is small. > It seems that if the RAVE term is large, then Rave creates enough > exploration by itself. > > David > > > -----Original Message----- > > From: computer-go-boun...@dvandva.org [mailto:computer-go- > > boun...@dvandva.org] On Behalf Of Petr Baudis > > Sent: Friday, December 31, 2010 6:27 PM > > To: computer-go@dvandva.org > > Subject: Re: [Computer-go] Fwd: News on Tromp-Cook ? > > > > Hi! > > > > On Fri, Dec 31, 2010 at 07:02:35PM +0800, Fuming Wang wrote: > > > Now I know Remi is the first to utilize MCTS. Guess I need to read > > papers > > > more carefully. I do have a question though. I thought UCT is the > > foundation > > > of the current strong programs, I know that a RAVE term is added to the > > > original UCB term, i.e. sqrt(t_total/t_i), but the UCB term is still > > there > > > right? Could you eleborate a bit on why do you say "UCT is not good for > > Go"? > > > This is quite contradictory to a lot of material on the internet > > regarding > > > the lastest bread of go programs. > > > > Most likely not all (e.g. it seems not ManyFaces?), but at least many > > programs use exploration coefficients that are either zero or negligibly > > small. > > > > In Pachi, I'm using 0 as the exploration coefficient in the end, it > > seems to work the best. But this probably also depends on the fact that > > I have slight forceful randomization of playouts. 0.02 can work well on > > 9x9 too, but it also depends on the priors, etc. > > > > Overally, it is a question of the overall tuning of the program. But > > right now, reasonably strong play with only RAVE and no UCB1 is > > certainly possible. > > > > -- > > Petr "Pasky" Baudis > > Computer science education cannot make an expert programmer any more > > than studying brushes and pigment can make an expert painter. --esr > > _______________________________________________ > > Computer-go mailing list > > Computer-go@dvandva.org > > http://dvandva.org/cgi-bin/mailman/listinfo/computer-go > > _______________________________________________ > Computer-go mailing list > Computer-go@dvandva.org > http://dvandva.org/cgi-bin/mailman/listinfo/computer-go >
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