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Subject: Re: The Validity of CC Testresults - Take my Word for that one!

Author: Günther Simon

Date: 10:49:10 01/20/06

Go up one level in this thread


On January 20, 2006 at 13:41:20, Rolf Tueschen wrote:

>On January 20, 2006 at 11:51:48, Uri Blass wrote:
>
>>On January 20, 2006 at 05:28:47, Rolf Tueschen wrote:
>>
>>>On January 20, 2006 at 04:58:11, enrico carrisco wrote:
>>>
>>>>On January 20, 2006 at 03:14:09, Mike Byrne wrote:
>>>>
>>>>>http://www.chessolympiad-torino2006.org/eng/index.php?cav=1&dettaglio=309
>>>>>
>>>>>good stuff...
>>>>
>>>>Yea -- he even cited the "Anti-computer chess expert" Pablo Ignacio Restrepo.
>>>>What more would we need?
>>>>
>>>>-elc.
>>>
>>> Yes, this, and then also the point that not automatically everything which is
>>>quoted by a GM, here GM Golubev, is similar to Newton's Gravitation Law Paper or
>>>Einstein's paper on Relativity. It's a bogus more or less. I want to add a
>>>single item so that my opinion doesnt look like a cheap arbitrariness.
>>>
>>>The CEGT test guys are mentioned (I think some 15 persons) and it sounds as if
>>>they were a sort of institution for certain questions in CC. Comparable to what
>>>we meant when we spoke of "the new SSDF list" in the 90's. The problem begins if
>>>I question that Rybka is already proven the strongest engine today. Then people
>>>tell me to look at CEGT where that has been proven... This was a few days ago
>>>here in CCC. I must object to such sort of hybris. The truth is that we dont
>>>have statistical methods for making such claims. Even after 700 or maybe over
>>>1000 games the significance is not so sure and if you look at the +/- boundaries
>>>of the so called Elo results then you still have overlappings and you cant say
>>>that Rybka is the clear first. - Nothing against the testers of CEGT. The
>>>presentation of the results is nice. The games download is also well organised.
>>>But all that can't hide the fact that we have certain statistical requirements
>>>which must be respected if one wanted to make clear statements. We are all too
>>>human. In a world of huge uncertainties and big problems overall, we feel the
>>>need to do something for our wellness in such a hobby. Where if not there could
>>>we find our peace of mind? We can test. We can create a whole network of
>>>testers. But if we then want to make clear statements, alas, we are all standing
>>>under the steel hard laws of stats. And basically we cant get what we want to
>>>have. We are bound to believe in our private preferences. We can also assume
>>>that actually, for a short time, Rybka is "certainly" looking like a very strong
>>>engine. But everything above that would be bogus. We should all keep that in
>>>mind. The development in CC is always moving. THere is no such thing as the best
>>>alltime engine for the next 10 years. If I would get the newest super computers
>>>of the US military, it could well be that I become the next World Champion with
>>>Gullydeckel, to give an absurd example, or with my personal shooting star The
>>>Roaring Thunder which was developed in my kitchen for the next WCCC in Torino...
>>>I degress a little bit.
>>
>>Here are the CEGT single processor results
>>
>>I ignore single processor result
>
>It striked me with a sort of importunateness when I read today the campaign by
>Simon/Pittlik? and Lagershausen and when I read your lecture here, dear Uri, I'm
>quite sure that it's impossible to tell people the complex truth, if they are
>used to believe in simple truths. I have learned long enough how careful one
>should be in statistics. Honestly Uri, what you are doing here is unallowed. You
>cant take a list with results and then simply remove certain entries and THEN
>compare with their results included. That is your first crass mistake. Of course
>also I do know that you cant simply compare 1-processor with 2-processor progs.
>And that wasnt at all what I was trying to do.
>
>
>>
>>You can see that single processor programs have less than 2800 when even the 32
>>bit version of rybka has bigger rating than 2815 when the top 64 bit version
>>even has more than 2850.
>>
>>No over lapping
>>
>>1 Rybka 1.01 Beta 9 64-bit opt 2921 73 68 71 80.3 % 2677 33.8 %
>>2 Rybka 1.0 Beta 64-bit 2859 21 21 765 68.4 % 2725 32.7 %
>>4 Rybka 1.0 Beta 32-bit 2825 10 10 3575 68.9 % 2687 31.0 %
>>6 Fruit 2.2.1 2786 8 8 5035 66.0 % 2671 33.1 %
>>7 Fritz 9 2782 11 11 2724 62.8 % 2691 30.2 %
>>9 TogaII 1.1a 2772 14 14 1560 60.3 % 2699 36.3 %
>>10 Hiarcs 10 Hypermodern 2771 22 22 644 53.3 % 2749 35.7 %
>>
>>The only entry of CEGT that in theory can have more than 2800 on one cpu is deep
>>fritz8 but deep fritz8 2 cpu has less than 2800 and it is illogical to expect
>>deep fritz8 on one cpu more than it
>>
>>8 Deep Fritz 8 2CPU 512MB 2772 14 14
>>15 Deep Fritz 8 1CPU 2754 107 104
>>
>>The fact that in part of the other lists rybka is number 1 without an advantage
>>that is significant enough probably also increase the certainty that rybka is
>>the best engine because the probability of something that is not the best to get
>>first place in every serious list is very small.
>>
>
>
>Let's come here to the second crass mistake in your arguments. You see the
>result of first place for Rybka like I do that and you conclude that this must
>have a proof signal as such. That is the mistake already. Because you conclude
>that place one means best strength as such. NB that with stats you measure and
>then you claim that your measurement has a validity. Because you kept everything
>of importance under control. I simply object that this is wrong for the actual
>situation because - as I have already debated with Bob Hyatt - Rybka is in the
>initiative actually while all others must react now or tomorrow. But what the
>results show is the improments of Rybka against unchanged older progs. And I
>claim, without great risks, that any strong program will get in advantage, if
>the others couldnt react yet.

Rating lists don't show ratings of the future versions. I doubt Bob discussed
astrology with you. The thread is about today not about future strength,
no idea why you changed the topic. Ah wait I know why you changed it ;)

Guenther



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