Earlier quoted context omitted.
'>' doesn't "work"; it doesn't do anything on HN. It's just a convention that readers recognize as indicating quotation. HN does not use Markdown.
I noticed people were doing this and wrote a userscript a while ago to make it work. I kind of wish HN supported it. https://gist.github.com/kennethrapp/7a21c0187fedd6f47e7c
Lee Sedol Beats AlphaGo in Game 4
361–370 of 471 posts
Re: Lee Sedol Beats AlphaGo in Game 4
#362Would it not be beneficial to the deepmind team to open at least the non-distributed version to the public to allow for training on more players? I was surprised to learn that the training set was strong amateur internet play, why not train on the database of the history of pro games?
Alphago learns mostly from playing against itself. (And in the future they are planning to remove the crutch of starting with human generated data entirely.)
Re: Lee Sedol Beats AlphaGo in Game 4
#363Earlier quoted context omitted.
Yep! As someone who was rooting for DeepMind, I like this result, for two reasons: Lee Sedol earned it - he's behaved like a true sportsman all the way - and it gives us some interesting information (yesterday we only had a lower bound on AlphaGo's strength; today we also have an upper bound).
>yesterday we only had a lower bound on AlphaGo's strength; today we also have an upper bound I think it's premature, establishing bounds with good confidence interval requires tens or hundreds of games. Specifically, 3:2 result would be really inconclusive.
To use an analogy, having confirmation of contact by even a single alien species would be hugely important, way more so than exactly nailing down the number of alien species. Knowing that something is even possible is oftentimes the most important aspect that needs to be ascertained, and contact (or a win, in Lee's case) does that unequivocally.
Re: Lee Sedol Beats AlphaGo in Game 4
#364Earlier quoted context omitted.
I think mostly people forget that > works and that therefore you can do > quotes like this since it's markdown - often you get commentish things that allow limited HTML plus indented code blocks, and people get used to using the latter as the only thing that works everywhere
'>' doesn't "work"; it doesn't do anything on HN. It's just a convention that readers recognize as indicating quotation. HN does not use Markdown.
Pre is broken on mobile, forcing users to scroll a horizontal line which is incredibly annoying if it's a long line.
Here's a screen shot: http://imgur.com/Ru56wMKAnd pre with very long unbroken lines is even worse.
Re: Lee Sedol Beats AlphaGo in Game 4
#365This game is a great example for the people that said that AlphaGo didnt play mistakes when it had a better position because it lowered the margin, because it only looks at winning probability. AlphaGo made a mistake and realized it was behind, and crumbled because all moves are "mistakes"(they all lead to loss) so any of them is as good as any other. Im very suprrised and glad to see Humans still have something agai…
That doesn't make sense to me. Even if the objective function is win probability, it's used to order all potential moves. Thus given a menu of bad options, it should choose the least-bad one, not start choosing at random. I think there's something more subtle going on.
Re: Lee Sedol Beats AlphaGo in Game 4
#366In the post-game press conference I think Lee Sedol said something like "Before the matches I was thinking the result would be 5-0 or 4-1 in my favor, but then I lost 3 straight... I would not exchange this win for anything in the world." Demis Hassabis said of Lee Sedol: "Incredible fighting spirit after 3 defeats" I can definitely relate to what Lee Sedol might be feeling. Very happy for both sides. The fact that p…
I've read some articles in Korean press that suggested AlphaGo team picked Lee as their match and not Ke Jie (currently #1 ranked, 19 years young) because there's a lot more public records of Lee's plays over his much longer pro career (nearly 20 years now). Thus more material for AlphaGo to train with and against. So it's not totally arrogant of Ke Jie to suggest he could beat AlphaGo. AlphaGo has not much 'experien…
Personally I want to see a discussion game with the top Go experts (including both Lee Sedol and Ke Jie amongst others) competing against the next version of AlphaGo, in a game with much longer time limits.
Re: Lee Sedol Beats AlphaGo in Game 4
#367Re: Lee Sedol Beats AlphaGo in Game 4
#368Was it AlphaGo losing the game, or Lee Sedol winning it?
Lee Sedol winning, and keeping his cool and not make any mistakes. AlphaGo, on the other hand, went bonker especially towards the end but it got into bad territory not because of silly mistakes but brilliant play by Lee Sedol. Could it possibly be that both of the mistakes were bugs? Perhaps it suggested a non-sensical position such as (25.23, 13.15), and it was snapped to (19, 13) :D
Alphago doesn't work like that..
Re: Lee Sedol Beats AlphaGo in Game 4
#369Earlier quoted context omitted.
Living flesh is not meat. Meat is what we call dead flesh. A living brain is made of neural nano-processors.
This is a matter of perspective. If you were a tiger, you would consider anything that walks or crawls to be "meat".
Re: Lee Sedol Beats AlphaGo in Game 4
#370My friends and I (many of us are enthusiastic Go lovers/players) have been following all of the games closely. AlphaGo's mid game today was really strange. Many experts have praised Lee's move 78 as a "divine-inspired" move. While it was a complex setup, in terms of number of searches I can't see it be any more complex than the games before. Indeed because it was a very much a local fight, the number of possible move…
Given the 78 was a "divine inspired" move, and Demis tweeted that AlphaGo's mistake was move 79, my guess is that Black 78 was not in AlphaGo's search tree at all. It had pruned that move as being too "unlike what a human pro would do", and had not considered play beyond that point. Then it had to suddenly backtrack, drop its entire search tree, and start rebuilding from scratch. It took only a couple minutes to do s…