Hi! On Mon, Feb 01, 2016 at 01:38:28PM +0000, Aja Huang wrote: > On Mon, Feb 1, 2016 at 11:38 AM, Petr Baudis <pa...@ucw.cz> wrote: > > > > That's right, but unless I've overlooked something, I didn't see Fan Hui > > create any complicated fight, there wasn't any semeai or complex > > life&death (besides the by-the-book oonadare). This, coupled with the > > fact that there is no new mechanism to deal with these (unless the value > > network has truly astonishing generalization capacity, but it just > > remembering common tsumego and joseki shapes is imho a simpler > > explanation), leads me to believe that it remains a weakness. > > > > If you check Myungwan Kim 9p's comments in the video, in the 4th game there > was a semeai that AlphaGo read out at top side. See the game at > > http://britgo.org/deepmind2016/summary
(It's at ~1:33:00+ https://www.youtube.com/watch?v=NHRHUHW6HQE) Well, there was a potential semeai, but did AlphaGo read it out? I don't know, you probably do. :-) > Unfortunately before the Lee match I'm not allowed to answer some of the > interesting questions raised in this thread, or mention how strong is > AlphaGo now. But for now what I can say is that in the nature paper (about > 5 months ago) AlphaGo reached nearly 100% win rate against the latest > commercial versions of Crazy Stone and Zen, and AlphaGo still did well even > on 4 handicap stones, suggesting AlphaGo may do much better in tactical > situations than Crazy Stone and Zen. But CrazyStone and Zen are also pretty bad at semeai and tsumego, it's a bit of a self-play problem; when playing against MCTS programs, some mistakes aren't revealed. (I guess that you probably played tens of games against AlphaGo yourself, so you'll have a pretty good idea about its capabilities. I just can't imagine how will the value network count and pick liberties or tsumego sequence combinations; it might just have more memory capacity than we'd imagine.) > I understand you bet on Lee but I hope you will enjoy watching the match. :) I certainly will! And in my heart, maybe I root for AlphaGo too :) -- Petr Baudis If you have good ideas, good data and fast computers, you can do almost anything. -- Geoffrey Hinton _______________________________________________ Computer-go mailing list Computer-go@computer-go.org http://computer-go.org/mailman/listinfo/computer-go
