On Fri, Jun 18, 2010 at 09:28:49AM +0100, Arthur Cater wrote:
> Is there a formal name for this distance metric?
>
> distance=C.(dx+dy+max(dx,dy))
>
> where C may be 1 or 1/2 , it doesn't much matter.
>
> And in which well-known Go program(s) is it used? I'm sure I've seen
> something
> about it recently but damned if I can find it again.
>
> Help much appreciated.
You might have seen it in (Coulom, 2007), and earlier in (Stern, 2006).
Recently, I mentioned it in my "State of art in Computer Go 2009"
presentation.
I'm calling this "the gridcular metric", both in my sources and in a
paper I have submitted recently; anyone else is welcome to call it that
too. I don't think it has any other name attached to it so far.
Most programs relying on gamma-pattern combinations are probably using
this; at least Pachi is for sure, CrazyStone and others apparently too.
--
Petr "Pasky" Baudis
The true meaning of life is to plant a tree under whose shade
you will never sit.
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