[computer-go] ELO Ratings of move pattern

[Jason House]

On Dec 12, 2007 2:59 PM, Rémi Coulom <Remi.Coulom at univ-lille3.fr> wrote:

> > Do you mean a plot of the prediction rate with only the
> > gamma of interest varying?
>
> No the prediction rate, but the probability of the training data. More
> precisely, the logarithm of that probability.


I still don't know what you mean by this.



> If you have P(x)=A*exp(-x²/2sigma²), then log(P(x))=log(A)-x²/2sigma²,
> and d²(log(P(x)))/dx²=-1/sigma². This means that, for a Gaussian
> probability distribution, the second-order derivative directly gives the
> variance. For distributions that look similar to a Gaussian, the
> second-order derivative is a good approximation.


This part I understand
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