This is on my list of things to try, and I am hoping that other people who try it will describe their experiences in this forum.
What I perceive is that Orego, while "Mogo-like," still has a fairly light playout policy. For example, in the paper, Orego (using the killer-reply-with-forgetting heuristic) defeats Gnugo maybe 87% at 32K trials on 9x9, whereas Pebbles defeats GnuGo 93% using 10K trials. Orego places the killer-reply heuristic as the very first rule applied. I speculate that engines that employ heavier playouts will benefit from placing a killer heuristic farther down the rule set. Anyway, I hope to test something in the next few months, and I will report on results here. Brian -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Jacques Basaldúa Sent: Tuesday, January 11, 2011 1:04 PM To: [email protected] Subject: [Computer-go] Orego 7.08 released : "Power of Forgetting" paper The discussion changed the subject to joseki, but the paper is not about joseki at all. (There is a poster about joseki in the same website.) The "Power of Forgetting" is an improvement to the previous Last-Good Reply idea. The results are spectacular and implementation is super-simple. Looks like RAVE applied to playouts, the simple heuristic that beats more ambitious ideas. It improves a MoGo-like policy: (capture, escape, 3x3) from ~10% to ~35% with 8K playouts and from ~25% to ~65% with 32K playouts. (Winrate against GnuGo) in 19x19! Something i guess, everybody will want to try. I will. Jacques. _______________________________________________ Computer-go mailing list [email protected] http://dvandva.org/cgi-bin/mailman/listinfo/computer-go _______________________________________________ Computer-go mailing list [email protected] http://dvandva.org/cgi-bin/mailman/listinfo/computer-go
