GPL discussion, sense and nonsense

General discussion about computer chess...
hyatt
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Re: GPL discussion, sense and nonsense

Post by hyatt » Sat Jul 10, 2010 9:08 pm

Chris Whittington wrote:
Rebel wrote:
hyatt wrote: Quite simply, in that I know a number of competitors at the time that went to those events. Bruce Moreland was one, and we had talked about a "reduction scheme" during the 1996-1997 (both) ICCA WMCCC events. Bruce talked quite a bit with SMK and he didn't reveal a thing about "reductions" to Bruce, as one example. And in the above window, both Bruce and I were experimenting with this idea as previously mentioned, we just never reached a "happy point".
Your bias is unbelievable :lol:

Have you (yourself) ever spoken with a commercial? I am asking because I never met you on any tournament. You just were never present. I am speaking of 1986 (Munich) and on. Programmers talk on tournaments, the commercial ones included. From several commercial programmers I got: Alpha/Beta, killer heuristic, iterative search, aspiration search, Q-search. I returned as well. They are not much different than you, if you have a passion it's hard to keep your mouth shut especially when you are on an event with your kindred spirits. Just enter a topic and words starts to roll. You should have tried but were not there, so how can you judge so mean?

Ed
An academic is just a commercial unable to find a way to get the masses to pay him, settled for persuading the university bean counters to pay him. The former requires at a bare minimum the ability to fool enough people for enough of the time, the latter the ability to fool one person once and get tenure.
Perhaps one day you might actually do a little research into what "tenure" is all about. It certainly is not about fooling "one person". You would have to fool a couple of dozen on-campus people, some in your department, some not. Plus the majority of your peers at other universities that are working in your field since we require 5-6 _outside_ reviewers as well.

A commercial programmer only has to fool the uninformed public that might buy his product. By a little creative manipulation of tournament results, testing agencies, and the like. I believe the tenure process is _far_ more difficult.

hyatt
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Re: GPL discussion, sense and nonsense

Post by hyatt » Sat Jul 10, 2010 9:10 pm

thorstenczub wrote:
Rebel wrote:
hyatt wrote: I am speaking of 1986 (Munich) and on.
1986 was cologne. i think bob was there.

ed and me were there too.

1993 was munich.
I was not. This was where the ICCA started to stretch the WCCC event out into a long event, right in the middle of a school term. Harry Nelson took time off as personal vacation, and he and Claire went to Europe for 2+ weeks, spending about 1 week at the WCCC operating Cray Blitz. That was the year of Berliner's "they cheated" fiasco...

hyatt
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Re: GPL discussion, sense and nonsense

Post by hyatt » Sat Jul 10, 2010 9:12 pm

Gerd Isenberg wrote:
Rebel wrote:
thorstenczub wrote:
Rebel wrote:
hyatt wrote: I am speaking of 1986 (Munich) and on.
1986 was cologne. i think bob was there.

ed and me were there too.

1993 was munich.
Cologne yes, my bad ;)

But I believe only Harry Nelson of the Cray Blitz team was present.

Could I be wrong twice in one posting? ;)

Ed
Yep, see cpw or your own photos from wccc 1986. Harry Nelson and Albert Gower. The last time Bob probably was in Europe was 1984 - the match against Levy at Advances in Computer Chess 4 in London.

Image

Something is wrong there. Harry went to Cologne. Bert Gower and I were in Birmingham and operated the Cray and communicated moves back and forth to Harry in Cologne. Bert and I were both in London for the 1984 Levy challenge match. I went to Paris later to do a chess demo, but unrelated to any WCCC/WMCCC event.

hyatt
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Re: GPL discussion, sense and nonsense

Post by hyatt » Sat Jul 10, 2010 9:19 pm

Chris Whittington wrote:
hyatt wrote:
Sentinel wrote:
Harvey Williamson wrote:How do you know he did not discuss it with others at maybe an ICGA event?
This is just ridiculous.
He might have also discussed it with his wife, or brother or whoever, but that is completely irrelevant.
I would even go as far to claim that if Bob doesn't know for a certain "contribution", then real contribution does not even exist.
What does a chess community has out of private discussion of couple of ICGA participants (if that really happened and is not just another Harvey's manipulation) which nobody can actually confirm???
Nothing at all, nada, zero, zip, zilch is the answer.
In the "good old days" we always had a panel discussion at each ACM computer chess tournament, and at some (at least in North America) ICCA events as well. Those were specifically to discuss ideas and such. We often had paper sessions where various more in-depth presentations were made. And the ICCA Journal was _formed_ to provide a written forum for dissemination of computer chess papers. Add 'em all up (ICCA/ICGA papers) and then count the commercial authors. Donninger is the only commercial author that comes to mind. In the late 80's and thru the 90's we had r.g.c.c. Go look at old posts there and see what was discussing actual algorithms and ideas, and who just discussed general topics with no specific ideas of any kind revealed. For all I know, computer chess might have reached the same point we are at today, with nothing but commercial authors. But the key is "for all I know" because they were certainly not heavy contributors to the body of knowledge related to computer chess.

I strongly suspect computer chess would not exist as we know it if not for the early pioneers that did share ideas freely.
Let's re-phrase this shall we? In the pre-1980's when there were no available microprocessors the only people with access to computers were the various university nerds and socioopaths sharing basement space with the cockroaches and whirring discs nobody knew what to do with. They thought "Hey, wow, awesome, now there's meaning to my life of pizza, late nights with the cockroaches and no girls and maybe I can make some headway in the university departmental building game that has so far eluded me!" The goal was a commercial career at the university, nobody having thought what miniaturisation would bring, so publishing 'papers' and 'sharing' nonsense became all the rage. Then those bastard commercials with their microprocessors and low cost of entry came along, surprisingly enough occupying slightly more of the real world space where people and ideas compete for limited wealth and then anyone could do it (beard, body odour, stammering, never washing and total clamminess with the girls being the only requirement).
Is the CC topic about computer chess or computer comedy? Even though you don't realize it, we _did_ have microcomputers in computer chess tournaments in the "pre-1980's". In 1978 I used a z80 to run my electronic chess board that many have seen pictures of. Kathe Spracklen remarked "You have more computer power just sensing squares on your chess board than I have in my program" (I believe she was 6502-based at the time. The z80 was introduced in 1976... I know that in 1978 "Sargon" was playing chess in tournaments, including the ACM event. As always, your history lesson has been "tried and found wanting".

hyatt
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Re: GPL discussion, sense and nonsense

Post by hyatt » Sat Jul 10, 2010 9:23 pm

Rebel wrote:
hyatt wrote:
Rebel wrote:
hyatt wrote:Null-move is about +80 in Crafty. Measured carefully on the cluster. LMR is right at +100 today. By itself with no null-move. Again measured carefully on our cluster. One year ago it was +80, but some recent changes boosted this a bit. But even more importantly, if you already have null-move, LMR is only about +50 more. It is nowhere near +200 or beyond...
You speak of Crafty while I had Rybka, Stockfish and Ippo.* in mind. Apparently they seem to profit a lot more.
Not from null-move and LMR. I tested all of 'em, with and without. Although it is easy enough for anyone to run the tests. The two together are nowhere near +200 Elo...
And yet you again are talking only about the performance of LMR & null-move in Crafty.
No, as I said, I tested this in three programs. Glaurung, Fruit _and_ Crafty. It is easy to turn any of these off by slightly modifying the source code. I have not tested it in the past 12 months, but can do so since LMR has certainly changed a bit. I'd still bet nowhere near +200.


In mine the gain is even less, maximum 20-30 elo each. Just look at the sophisticated LMR implementation of Stockfish & Ippo and add a 50-100-150 elo points to Crafty. Where else do you think Stockfish's big elo jumps are coming from other than sophisticated and new LMR idea's?

BTW, a little bird told me Crafty recently made big elo-jumps as well, 150-200 elo. Is that bird right? Can you elaborate in which area's you made this kind of progress?

Ed
Simple. A _ton_ of eval tuning. Removing ideas that have been considered good in the past (single-reply-to-check, passed-pawn push, recapture search extensions for one example). Absolutely nothing "revolutionary". Just a ton of cleaning up, simplifying where appropriate, and then eval changes.

Gerd Isenberg
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Re: GPL discussion, sense and nonsense

Post by Gerd Isenberg » Sat Jul 10, 2010 9:37 pm

hyatt wrote: Something is wrong there. Harry went to Cologne. Bert Gower and I were in Birmingham and operated the Cray and communicated moves back and forth to Harry in Cologne. Bert and I were both in London for the 1984 Levy challenge match. I went to Paris later to do a chess demo, but unrelated to any WCCC/WMCCC event.
Oups, thank you.

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Re: GPL discussion, sense and nonsense

Post by Rebel » Sat Jul 10, 2010 9:50 pm

hyatt wrote: No, as I said, I tested this in three programs. Glaurung, Fruit _and_ Crafty. It is easy to turn any of these off by slightly modifying the source code. I have not tested it in the past 12 months, but can do so since LMR has certainly changed a bit. I'd still bet nowhere near +200.
We will see.

http://www.open-chess.org/viewtopic.php?f=3&t=423

Ed

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Re: GPL discussion, sense and nonsense

Post by Rebel » Sat Jul 10, 2010 9:58 pm

hyatt wrote: A commercial programmer only has to fool the uninformed public that might buy his product. By a little creative manipulation of tournament results, testing agencies, and the like. I believe the tenure process is _far_ more difficult.
Which was my initial point.

Thanks for saying it so clearly.

Discussion closed, at least for me.

Ed

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Re: GPL discussion, sense and nonsense

Post by Rebel » Sat Jul 10, 2010 10:00 pm

Gerd Isenberg wrote:
hyatt wrote: Something is wrong there. Harry went to Cologne. Bert Gower and I were in Birmingham and operated the Cray and communicated moves back and forth to Harry in Cologne. Bert and I were both in London for the 1984 Levy challenge match. I went to Paris later to do a chess demo, but unrelated to any WCCC/WMCCC event.
Oups, thank you.
The person left on the picture looks like David Levy. Not completely sure.

Ed

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Re: GPL discussion, sense and nonsense

Post by Gerd Isenberg » Sat Jul 10, 2010 10:16 pm

Rebel wrote:
Gerd Isenberg wrote:
hyatt wrote: Something is wrong there. Harry went to Cologne. Bert Gower and I were in Birmingham and operated the Cray and communicated moves back and forth to Harry in Cologne. Bert and I were both in London for the 1984 Levy challenge match. I went to Paris later to do a chess demo, but unrelated to any WCCC/WMCCC event.
Oups, thank you.
The person left on the picture looks like David Levy. Not completely sure.

Ed
Yes, on the picture I posted is Levy and Bob. I meant this picture where I thought the person left was Al Gower :oops:
Maybe Chess journalist Dagobert Kohlmeyer?
Image

Who is the guy behind Berliner by the way?

Gerd

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