Re: [computer-go] Evaluation function / move ordering for gnugo

[Marco Scheurer <marco@xxxxxxxx>]

On Apr 26, 2004, at 4:23 PM, Jeffrey Rainy wrote:
> I've developped an evaluation function for Go that I'd like to test in 
> an
> existing program. Is it easy to replace gnugo's move ordering and/or
> evaluation function by another one ?
> Also, any pointers on which program would be easiest to replace the
> evaluation function, would be glady appreciated.
There are several simple GTP go programs, where replacing the move 
generation should be easy. However they do nothing like tree search 
based on the evaluation (but GNU Go doesn't either). They are listed 
"Other Free Go Programs" section at 
http://www.gnu.org/software/gnugo/gnugo.html . Look for wallyplus or 
randyplus for instance. There's also brown, by Gunnar Farnebäck, at 
http://www.lysator.liu.se/~gunnar/gtp/brown-1.0.tar.gz .

> On average, when compared to human players, the rank it gives to the 
> played
> move (by the human player) is better than the rank of 85% of the other 
> legal
> moves.  I guess there's some (although little) useful information 
> there.
I suppose you're aware of Dave Dyer paper on the subject, Global 
Evaluation Strategies in Go, at 
http://www.andromeda.com/people/ddyer/go/global-eval.html .


Marco Scheurer
Sen:te, Lausanne, Switzerland   http://www.sente.ch
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