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Subject: Re: Hello from Edmonton (and on Temporal Differences)

Author: James Swafford

Date: 18:33:29 07/31/02

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On July 31, 2002 at 17:49:05, Jay Scott wrote:

>On July 30, 2002 at 22:43:36, James Swafford wrote:
>
>>why isn't
>>everyone doing it??
>
>In my view, it's because top chess programmers are amazingly conservative. Or to
>look at it more positively, they have a lot of time invested in and knowledge
>gained about their traditional manual methods, and they do not believe in making
>big changes. It's hard to argue with success!
>
>Over the years I've posted a bunch of machine learning suggestions (few of them
>original to me) to rec.games.chess.computer and to this forum. Maybe it's my
>writing style or something, but in every single case the general first reaction
>was to ignore or dismiss the idea. That happened even when I pushed opening book
>learning, which was not used in chess programs at the time but has become common
>since. Arthur Samuels' classic checkers program already used a similar kind of
>rote learning, so nobody should call it a radical new idea, but despite
>seemingly obvious advantages it somehow took decades to show up in chess
>programs.
>
>Another problem is that many of the people who've played around with learning
>algorithms were only playing around. It takes serious knowledge to create a good
>learning program, and different serious knowledge to create a good playing
>program, and you have to have both to get really impressive results. Nobody's
>done it yet.
>
>My advice for those who have great new ideas: Implement them yourself and become
>a smashing success. *That's* convincing. The only problem is that to become a
>smashing success, you'll also have to implement a lot of great old ideas.

I agree with you.  I have studied TD-Leaf for a while, and I am definitely
going to pursue creating a strong TD chess player.

One of my biggest concerns was the time to train a complex evaluator.
I spoke with Rich Sutton about this today, and he convinced me that it's
doable.

--
James





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