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Subject: Re: brilliant post! Maybe comps should show margin of error with evaluatio?

Author: Brian Richardson

Date: 06:05:12 01/03/06

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<snip>
>
>Indeed, Rybka already thinks in winning % rather than centipawns. It's just that
>current GUIs expect centipawns, so this is what is output. (This may change.)
>
>(The only minor issue here is "distance to mate".)
>

Any chance you would be willing to post a formula estimating centipawns score
calculated from winning percentage?

Perhaps it something like
f(x) = 1/(1+exp(-x/150))
for graph see
http://www.compute.uwlax.edu/calc/output/137500/

or
f(x) = (1+tanh(x*.33/100))/2
http://www.compute.uwlax.edu/calc/output/137503/

Thanks,
Brian

• Re: brilliant post! Maybe comps should show margin of error with evalua Stuart Cracraft 13:28:06 01/03/06

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