Re: [computer-go] Ladders and UCT
No, if no patterns or tactics are triggered all moves has the same priority and are played uniformly as usual. It is only sequences that trigger forced moves that are deterministic, and in many cases two or more moves with the same priority is triggered too and then there is random choice between these moves. -Magnus Quoting Peter Drake <[EMAIL PROTECTED]>: Without the 10% random moves, would every playout from a given leaf be identical? Peter Drake http://www.lclark.edu/~drake/ On Jun 17, 2008, at 3:14 AM, Magnus Persson wrote: Valkyria plays uniformily the highest ranked move. Ladders as a response to the last move are almost always ranked above all else. But it has a parameter that makes it play any move with 10% probability no matter what the tactical situation is on the board. I have not tested if these really is beneficial. If it is it is probably really a small change to winning rate. Magnus Quoting Carter Cheng <[EMAIL PROTECTED]>: I hope you don't mind me chiming in here. I think I asked this question quite recently on the mailing list and the reply I received from Magnus Persson (I hope I am not misquoting him) was that Valkyria adjusts the probability distribution based on a simple ladder readout which is a function which returns either success fail or unknown in order to feed this information into the playout process. --- On Mon, 6/16/08, Peter Drake <[EMAIL PROTECTED]> wrote: From: Peter Drake <[EMAIL PROTECTED]> Subject: Re: [computer-go] Ladders and UCT To: "computer-go" Date: Monday, June 16, 2008, 10:13 PM Mark: Can you say more? Do you mean ALWAYS play such moves first if they are available, do so with some probability, or what? Peter Drake http://www.lclark.edu/~drake/ On Jun 16, 2008, at 4:09 PM, Mark Boon wrote: play ladder-capturing and ladder-escaping moves during playout___ computer-go mailing list computer-go@computer-go.org http://www.computer-go.org/mailman/listinfo/computer-go/ ___ computer-go mailing list computer-go@computer-go.org http://www.computer-go.org/mailman/listinfo/computer-go/ -- Magnus Persson Berlin, Germany ___ computer-go mailing list computer-go@computer-go.org http://www.computer-go.org/mailman/listinfo/computer-go/ -- Magnus Persson Berlin, Germany ___ computer-go mailing list computer-go@computer-go.org http://www.computer-go.org/mailman/listinfo/computer-go/
Re: [computer-go] Ladders and UCT
On 17-jun-08, at 22:26, Peter Drake wrote: Without the 10% random moves, would every playout from a given leaf be identical? I have not exprimented with introducing randomness. I always play ladder-capturing and ladder-escaping moves. But that does not imply at all that all playouts become identical from a given leaf. Only the next move is always identical, after that usually a random move follows. Mark ___ computer-go mailing list computer-go@computer-go.org http://www.computer-go.org/mailman/listinfo/computer-go/
[computer-go] Congress tournament: you can send a proxy
For the tournament at the US Go Congress: Please remember that you can send someone else to run your program if you can't attend yourself. You might consider finding someone who is attending anyway and would be willing to run your program. Is there anyone attending the Congress who does NOT have a program and would be willing to stand in for someone else? (I have some research assistants who may be able to help with this.) On a related note, please consider entering even if your program is weak. You don't have to come out on top to win something, and I haven't yet heard from MoGo, CrazyStone, or any other programs known to be very strong. You might do better than you think! Peter Drake http://www.lclark.edu/~drake/ ___ computer-go mailing list computer-go@computer-go.org http://www.computer-go.org/mailman/listinfo/computer-go/
Re: [computer-go] Congress tournament: you can send a proxy
I can provide a pre-built executable for my bot if I know the target hardware and who to give it to. Sent from my iPhone On Jun 18, 2008, at 1:09 PM, Peter Drake <[EMAIL PROTECTED]> wrote: For the tournament at the US Go Congress: Please remember that you can send someone else to run your program if you can't attend yourself. You might consider finding someone who is attending anyway and would be willing to run your program. Is there anyone attending the Congress who does NOT have a program and would be willing to stand in for someone else? (I have some research assistants who may be able to help with this.) On a related note, please consider entering even if your program is weak. You don't have to come out on top to win something, and I haven't yet heard from MoGo, CrazyStone, or any other programs known to be very strong. You might do better than you think! Peter Drake http://www.lclark.edu/~drake/ ___ computer-go mailing list computer-go@computer-go.org http://www.computer-go.org/mailman/listinfo/computer-go/ ___ computer-go mailing list computer-go@computer-go.org http://www.computer-go.org/mailman/listinfo/computer-go/
