Talking about pseudo-liberties :).
On 12/11/06, Łukasz Lew <[EMAIL PROTECTED]> wrote:
At the time of Your post I've had it already implemented and regarded
it like "my sweet secret" :) , so I was expecting that when You
published it everybody will appreciate, and start using. But I guess
it wasn't easy to see benefits.
I wonder how many really good ideas came through this list unnoticed.
Best Regards,
Lukasz
On 12/11/06, House, Jason J. <[EMAIL PROTECTED]> wrote:
> Wow. Did some of my early posts on liberties/chains actually get used
> by someone? Or did the idea of pseudo-liberties and union sets exist
> before my post(s) on the topic? I remember a lot of negative feedback
> on pseudo-liberties at the time of my post.
>
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] On Behalf Of Lukasz Lew
> Sent: Monday, December 11, 2006 1:31 PM
> To: [EMAIL PROTECTED]
> Cc: computer-go
> Subject: Re: [computer-go] Fast Board implementation
>
> Pseudo liberties of a group is a sum of liberties of each stone,
> example:
>
> OOOOO
> OXXXO
> OX.XO
> OXXXO
> OOOOO
>
> "X" group have 4 pseudo liberties.
>
> If You merge two groups just add pseudo liberties.
> If PL = 0 then group should be removed.
>
> This is simple and sufficient :)
>
> Lukasz
> On 12/11/06, Don Dailey <[EMAIL PROTECTED]> wrote:
> >
> >
> > On Mon, 2006-12-11 at 18:22 +0100, Łukasz Lew wrote:
> > > - pseudo liberties at top of union-set tree
> >
> >
> > Refresh my memory on this. I remember talking about this a long
> time
> > ago. A psuedo liberty is an upper bound on how many liberties there
> are
> > for a given string, correct? Sometimes a liberty gets counted twice
> or
> > more?
> >
> > But if it goes to zero or one it's correct for any given string?
> >
> > Is the idea that it's lightning fast to update incrementally?
> >
> > - Don
> >
> >
> >
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