For scoring, you could use integral instead of boolean outcomes again, which would solve some of the problems you descibed... This might be a great idea for programs that must deal with Japanese scoring, but for our reseach the best thing is just to stick to Chinese rules :)
On 11/5/07, Don Dailey <[EMAIL PROTECTED]> wrote: > > It would be tricky indeed to implement Japanese scoring with Monte Carlo > programs. > > Monte Carlo programs are very strong and thus they are not naive about > what the situation is. But I view them as "relativistic players" - > whether a group is dead or alive depends on your point of view! A > group is dead if it needs to be dead to win. > > This makes it a difficult fit for scoring dead groups. A monte carlo > go program might even play a move that makes it possible to win your > dead group back if it's not relevant to it's winning chances. So > dead group analysis must be done by external methods in my opinion. > > Also, Japanese scoring is problematic because it gives meaning to moves > which should be considered meaningless. Monte Carlo only cares about > meaningful moves - moves which increase the winning chances. Some of > the moves that Monte Carlo considers worthless are considered to be > negative worth in Japanese scoring. > > When a monte carlo program thinks the game is dead won or lost, you can > stop playing - but you can't necessarily get a correct bean count of the > position. > > So I don't think Japanese scoring is compatible with Monte Carlo methods > - although with some cleverness I'm sure it's possible to impose it. > > It occurred to me that you could build your play-outs to use Japanese > counting. I'm sure this would weaken the program considerably > however. Japanese scoring would impose a lot of "noise" on the > positions. > > > - Don > >
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