Question to the operator of "Fueogo9 bot" on LittleGolem: What are hardware and thinking times? (Best would be to mention it in the account - like done with "Valkyria9 bot")
Ingo. -------- Original-Nachricht -------- > Datum: Tue, 21 Jun 2011 09:29:34 +0200 > Von: [email protected] > An: [email protected] > Betreff: Re: [Computer-go] Thoughts about bugs and scalability > Quoting Martin Mueller <[email protected]>: > > > The main limitation of Fuego, and I suspect all other MCTS programs, > > is in the playouts, not in the search. I wrote up my impressions > > and some analysis after the matches vs strong humans in Barcelona > > last year. > > Yes, I noted that Fuego has some weaknesses Valkyria does not have in > the playouts. And my feeling is that these weaknesses pop up a lot in > games between Valkyria and Fuego. One example is Nakade in seki (also > with false eyes that are true eyes in a seki). > > A recent example of this problem from a Little Golem 9x9 game: > > http://www.littlegolem.net/jsp/game/game.jsp?gid=1334704 > > The evaluation was 70% for Valkyria for a long time but about 50% for > Fuego. > > Note that I am not sure the version of Fuego is the latest. > > The version of Valkyria playing on LG is not the same as tested on CGOS. > I have done some things to try to overcome the noise problem of MCTS > and memory limitations. The games on LG is played with up 12-24 hours > using 2 threads (several positions are searched in parallel as games > are played in parallel on LG) on a 4 core machine. > > This version of Valkyria is currently undefeated (there have been > losses in the past due to operating mistake and with short times and > the standard search). > > I cannot make a strong statement of scalability of this version of > Valkyria. I just see that a few moves into the games the evaluation is > monotonically increasing at a rate dependent of the mistakes of the > opponents. With white (komi is 5.5 favoring black strongly) the > evaluation may drop slowly as long as the opponents play good moves, > but so far Valkyria seems to be able to make the game complex enough > to make strong players make little mistakes that finally add up to > winning the game. > > Note that I describe here i purely anecdotal. The number of games > against really strong player is really low. Still my experience is > that many humans are able to play a really strong opening so many > games have been good tests. > > Magnus > > > > _______________________________________________ > Computer-go mailing list > [email protected] > http://dvandva.org/cgi-bin/mailman/listinfo/computer-go -- NEU: FreePhone - kostenlos mobil telefonieren! Jetzt informieren: http://www.gmx.net/de/go/freephone _______________________________________________ Computer-go mailing list [email protected] http://dvandva.org/cgi-bin/mailman/listinfo/computer-go
