Quoting [EMAIL PROTECTED]:
Now my feeling is that the "improving random simulations" part of
this work is
promising. We have only done very few steps in this direction, and it gives
quite convincing results. It was what I meant in the "random distribution"
discussions we have in this list. I am pretty sure that making improvements
in this direction would increase a lot the level of MC players even (or
especially) in 19x19. And this can be done very soon (well, perhaps not
before sunday :)).
I just read through your paper eagerly, and found that the your changes to the
random simulations are pretty much exactly the same in principle as
most things
Valkyria does. The difference is that my hardcoded patterns are fewer simply
because I have not implemeted all yet. Valkyria also checks stones freshly in
atari for good moves to save them and tests hardcoded patterns directly near
the last move.
The reason this is important for MC is that otherwise move sequences
that never
occur in real game occur frequently such as cutting a diagonal connection
without a double threat. Without such knowledge about basic patterns MC
program
tends to play too strong shapes.
I am now currently working with a system for matching larger but netherthelees
very fast patterns, which I might be able to use in the random simualations as
well as in the UCT-tree.
The things that were different from Valkyria was a little difficult to get the
first time but I will read it through more carefully soon and come back with
more comments.
-Magnus
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