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Re: [gnugo-devel] Revise TODO?

From: Gunnar Farnebäck
Subject: Re: [gnugo-devel] Revise TODO?
Date: Sun, 11 Nov 2007 23:35:39 +0100
User-agent: Mozilla-Thunderbird (X11/20071008)

Ben Lambrechts wrote:
I don't want to hack in the code, but if I can create a new fuseki-
I am willing to help.
I don't think a new full-board database would be of much value at this
time. As described in my other mail, smaller scale patterns have much
more potential.

However, I believe patterns/extract_fuseki.c, the code used to generate
the fullboard patterns, has a mode to also generate halfboard patterns.
It could be interesting to generate a collection of such patterns from a
set of strong games, which then could be used in an Elo pattern rating

Do you think it would be usefull to generate a new fuseki19.dbz from a much
larger game-database? I tried the first moves by hand:

F-H0-1 3977 pd
F-H0-2 1136 pc
F-H0-3 201 od
F-H0-4 158 jj
F-H0-5 137 qe
F-H0-6 101 qc
F-H0-7 46 oe

from the original file becomes

F-H0-1 31494 pd
F-H0-2 15635 qd
F-H0-3 782 oc
F-H0-4 633 nd
F-H0-5 609 jj
F-H0-6 482 od
F-H0-7 394 qc
F-H0-8 291 oe

with the database I have atm.
The fuseki19.dbz would become much larger, but it has much more strong
fuseki within it.

No, I don't think it would be very useful to generate a bigger fuseki19.dbz, at least not useful enough to include it in the distribution. But there are other possibilities. We could e.g. offer a bigger fuseki database as a separate download.

It is also today relatively straightforward to test the effect of a bigger fuseki database. Just put up two GNU Go which only differ in the fuseki database on the 19x19 cgos server (see If the effect is significant enough, adding it to the distribution would be considered.


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