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Subject: Re: F7 no learning - how weird

Author: karen Dall Lynn

Date: 11:20:01 01/26/02

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On January 26, 2002 at 13:59:51, Mogens Larsen wrote:

>On January 26, 2002 at 13:35:14, karen Dall Lynn wrote:
>
>>Yes, we have something here.
>>
>>I am starting to work with the hypothesis that Fritz 7 evaluates its own book
>>moves in a much more strict manner than Fritz 6 - which quicly changes the
>>weights. When I made the tests I played fast bullet against Fritz with random
>>moves. And resigned. It is not impossible that the whole string of moves may
>>have looked to Fritz as rubbish and rubbish it surely was.
>
>:-))
>
>I don't think Fritz have sufficient AI to make a distinction between winning
>against someone playing rubbish moves and someone losing the old fashioned way
>:-).
>
>>However it is still obscure for me why Fritz does not change the evaluation of
>>the white moves when I play black against it and lose, with ordinary average
>>player's black moves in a non-rated game. In this case there is no rubbish yet
>>the weights remain unrevised.
>
>It is possible that learning is restricted to rated games when it comes to Fritz
>7. With Nimzo 8 learning seem to be working without insisting on a rated game,
>eg. a normal blitz game. The only other thing I can think of would be the book
>options, where the learning strength might be set too low. I'm certain that
>you've checked that already.
>
>>Thank you for your reply.
>
>No problem. I'm sorry that I can't be of more help. But I don't own Fritz 7.
>
>Good luck,
>Mogens

You have been of great help!

I believe you are right about Fritz's built in AI; it certainly should not be
enough to sharply distinguishing between an extraordinarily well thought blunder
and ordinary random wood-pushing.

As to the non-learning problem - what scares me is not a possible regular
feature of Fritz, restricting the automatic learning (althought Fritz help
folders don't say a word about that). I fear the bad functioning, the little
glitch that may hide an entire potential collapse in crucial moments like
time-bombing.

It is like fungus in systemic, organic wholes: an apple with a small fungus spot
is as contaminated as a an apple all black for fungus. Fritz is highly organic
and so far it bears a nagging fungus, IMHO.

Thank you again and bye for now,

Karen



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