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Subject: Re: SSDF list says: Fritz5.32 still number 1...

Author: KarinsDad

Date: 09:43:26 09/28/99

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On September 27, 1999 at 07:41:39, Lin Harper wrote:

>      Fritz 5.32 has, I believe, a 'book learning function'. This means
>    that it will avoid lines that it does'nt get good results from.
>      Presumably this means that if any of us were to purchase a new copy
>    of Fritz off the shelf, it would'nt play as strongly as SSDF's Fritz,
>    because there's has played a lot of games, and therefore plays stronger.
>      Unless I'm mistaken, this can only mean that SSDF's evaluation of
>    Fritz (and a few others) is rather meaningless.

This is like saying that a new car that the manufacturer asks you to break in
and keep under 55 miles per hour is not as good as a 6 month old exact same make
and model car that is already broken in.

Just because a program has a learning function to improve it's book does not
mean that the engine is any stronger or weaker. So, if you were using Fritz for
analysis, the version the SSDF is using would be the same as the version you are
using (assuming identical hardware and settings).

What a learning program can do is avoid certain lines. However, that does not
invalidate the tests. In fact, the exact opposite occurs. The more games that
are played, the more the tests validate the effectiveness (or ineffectiveness)
of a learning program (in other words, the more games played, the closer you
will get to a more accurate approximation of the rating).

A program is a summation of it's parts, not just the strength of it's engine.
So, the results become "meaningless" only when the person reviewing the results
does not take in the overall picture and makes an implication that the results
are equivalent to engine strength (which is a false premise).

KarinsDad :)



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