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Subject: Re: Testresults WAC, LCT II, WM (K)

Author: Drexel,Michael

Date: 17:09:35 09/29/03

Go up one level in this thread


On September 29, 2003 at 18:50:07, Jeroen van Dorp wrote:

>On September 29, 2003 at 16:22:06, Drexel,Michael wrote:
>
>
>>What are you talking about?
>
>You are writing your question directly under the answer. I repeat it for your
>convenience. You cannot prove that an engine finding the right move for the
>wrong reason is the strongest engine.

Strongest? Prove?
That was never my intention.
I just did some automated tests to get an idea myself and posted the results.
Everyone can decide for himself what to do with that.

>
>You stated yourself that it's quite possible that an engine changes the PV and
>evaluation after a longer time. Anyone with experience with test results knows
>this is not a "statistical" or "hypothetical" question, but a very valid
>situation that often occurs.
>
>That's why you were given the advice to repeat the suite with the full time, and
>see it for yourself.

Why should I? I am convinced that my results are sufficient to get some insight.
As expected I got exactly the same results with extra ply 99 at WAC for 2
engines.
288/300 0.09s/0.13s for Chessmaster Pillen
and 279/300 0.38s/0.42s for Shredder 7.04
Not surprising of course (1 sec maximal solution time).

>
>
>>In most of the cases an engine finds the right move for the right reason.
>>This is just a question of probability.
>>There are cases when it finds the right move for the wrong reason, but that is
>>true for all the other programs as well.
>
>And so how do they compare to each other? After all that is what you were trying
>to assess. You were making a comparison between engines, and chose one engine
>from the batch:
>
><quote>
>Q: Why?
>A: to get an idea which programs are best suitable for interactive Analysis.
></quote>
>
>The method you use is not a proper method. If that remark bothers you, it
>doesn't mean the people mentioning it are wrong and you are right. It simply
>bothers you. In that case it would be better not to make the claims you have
>made, to avoid irritation.

Show me where I made any claims that my method is the right method.
You are the person who makes claims and they are not justified.

Just read carefully.
I would like to get an _idea_, not a final verdict.
IMO my method is sufficient to get an idea.

>
>
>>How often do I have to repeat it?
>>It is not important for me whether the PV is wrong or not or whether it discards
>>the move or not later on and never returns again.
>
>There's a bell ringing somewhere that you wanted "to get an idea which programs
>are best suitable for interactive Analysis". If the PV is wrong the analysis is
>wrong.
>
>Now you claim that it's not relevant if the PV is wrong or right. Yet you claim
>to test for finding the best engine determining the right PV in the shortest
>time.
>

Huh? Where did I claim that?

>
>
>>Yes
>>Eventually I do exactly the same during interactive Analysis.
>
>Then your interactive analysis is wrong also. But that doesn't matter. We're
>talking about methods here, not your notion of practical useability.
>If you feel "some move and PV returned from the engine with some evaluation" is
>sufficient for you, that is _no_ problem. It's _your_ choice.
>However the method you use constinues to stay not the right one for answering
>your original question.
>
>
>>It is my task to find the right move with the correct assessment.
>
>You're welcome. As long as you're aware that you started this thread with a
>statement about finding out which _engine_ was the best for that, and with the
>results you presented you stated that the _test suite_ gave you the answer to
>your question.
No.

I just posted a result. Nothing more or less.
I even didnt post my own conclusions.

It was not about your task finding a move with the correct
>assessment with your own brain.
>
>If you have found the engine that caters you, that's okay. It doesn't mean your
>test method is valid.
>
>If that bothers you, simply don't publish the test results.
>

What bothers me is, that some people tell me that my method is wrong and their
method is right.
This is utter nonsense.

Michael

>
>
>J.



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