[computer-go] 19x19 Study

[Sylvain Gelly]

>
> but not linearly and you can see a nice gradual curve in the plot.
>
> Now we have something we can argue about for weeks.   Why is it not
> mostly linear?   Could it be the memory issue I just mentioned?
>

Hi Don and all participants to that study, that is very interesting!

The memory constrains are certainly a valid hypothesis, especially the
default settings of the release are rather conservative on that side,
because it seemed better to have a weaker player than begin to make the
player's machine swapping... Those settings are rather fitting your memory
constrains as well, so it is fine.

Reading your email and looking at the curve, I wonder if one possible
explanation could be an artifact on how the ratings are computed? My
question is: what curve would we see for that study if the involved players
were exactly linearly scalable? That seems silly, but I wondered if there
were an underestimating of higher levels, because of the way the bayeselo
works. I am also looking at the curve after the 5-6th level (~gnugo), as
behavior may be different for very low levels.

I don't know if my hypothesis makes sense.
Sylvain
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