[Top][All Lists]

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [Bug-gnubg] Neural nets current state

From: Joseph Heled
Subject: Re: [Bug-gnubg] Neural nets current state
Date: Wed, 21 Feb 2007 07:09:04 +1300

On 2/21/07, George Stephanopoulos <address@hidden> wrote:
Hi all , just subscribed.
I would like to contribute to the development of gnubg. I am
particularly interested in the
neural net engine. I would like to know what is the current state of
affairs regarding the neural nets. How can we improve on the current
nets? (0.15, i am running the very latest 0.16-mingw-20070219 build
recently posted)
I have googled and found an old page by Joseph describing some of the
techniques he used to train gnubg. But what is the current state? Do
we have a data set of rollouts or 2-ply evaluations from the 0.15
weights version?. In general i would like to start the subject on this
mailing list, i presume there are a lot of ideas but i don't know
where we are currently and what work has been done already.

I don't know of any significant advancements. The methods I developed
seemed to have reached their limit of usefulness, as more iterations
don't produce a better net. (typically worse).

There is one known weakness of gnubg when it plays (or defends) deep
backgames. This turns to be a very hard problem. I tried several times
to attack this with no real success.


Bug-gnubg mailing list

reply via email to

[Prev in Thread] Current Thread [Next in Thread]