Re: [computer-go] Computer go in 7x7

2006-10-10 Thread Rémi Coulom
[EMAIL PROTECTED] wrote: Hello all, I am wondering about Go in 7x7. I know that the game in this size has no real interest in itself. However, I think that the level of computer go programs is much higher in 7x7 than in 9x9, and it could be interesting to see until where we can go in 7x7.

Re: [computer-go] CGOS server for 7x7

2006-10-18 Thread Rémi Coulom
Don Dailey wrote: I reported earlier that Lazarus wins as white with 8.5 komi. Out of 256 games the win percentage was 53.9 percent. I tripled the level and ran off 179 games. Now BLACK wins by 54.2 percent. 179 is not enough games, but it appears to be a turnaround. Of course black SHOULD

Re: [computer-go] UCT

2006-11-03 Thread Rémi Coulom
Peter Drake wrote: I've decided to bite the bullet and implement UCT in Orego, since (a) everyone else appears to be using it and (b) not being a statistician, improving on this is probably not where I'm likely to make a contribution. Here's my understanding of UCT. It is an algorithm for cho

Re: [computer-go] UCT

2006-11-03 Thread Rémi Coulom
Peter Drake wrote: On Nov 3, 2006, at 8:10 AM, Rémi Coulom wrote: You can try multiplying uncertainty by a well-chosen constant value. This way, you can tune how selective your search is. I found that using a constant < 1 improves the search on 9x9 for Crazy Stone (I use 1/sqrt(10), i

[computer-go] Positions illustrative of computer stupidity ?

2006-11-22 Thread Rémi Coulom
Hi, I am in search of Go positions that are easy to understand for humans, and difficult for computers. I will have to give a talk soon about computer Go to an audience of computer-science researchers who do not know the game. My objective is to try to make them understand why writing a Go-p

Re: [computer-go] Positions illustrative of computer stupidity ?

2006-11-23 Thread Rémi Coulom
steve uurtamo wrote: i think that these won't be terribly easy for your audience to parse. part of the problem is that gnugo is actually better than a beginner, for instance. A beginner cannot beat GNU Go, but it should be easy to make up positions where a beginner can find the right move an

Re: [computer-go] Positions illustrative of computer stupidity ?

2006-11-23 Thread Rémi Coulom
John Tromp wrote: On 11/23/06, *Rémi Coulom* <[EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]>> wrote: I have come up with a simple position where GNU Go fails: it is a position with two ladders. The best move is a double-purpose ladder breaker at the intersection of the

Re: [computer-go] Positions illustrative of computer stupidity ?

2006-11-23 Thread Rémi Coulom
David Fotland wrote: Many Faces plays L10, which looks like it also breaks both ladders. -David Thanks for testing. What if Black replies with K9 ? It looks like K9 restores both ladders (to my naive eye). What about the first position I posted, where more tempting moves are available elsew

Re: [computer-go] Miai

2006-11-26 Thread Rémi Coulom
Sanghyeon Seo wrote: Recently Remi Coulom asked for Go positions that are easy to understand for humans, and difficult for computers. I missed the thread at the time, so here's my late two cents. GNU Go passes as black. White plays C1. Now A1 and E1 are miai. White wins 1 point. (There are same

Re: [computer-go] Positions illustrative of computer stupidity ?

2006-11-26 Thread Rémi Coulom
alain Baeckeroot wrote: Le mercredi 22 novembre 2006 20:44, Rémi Coulom a écrit : Hi, Hi Rémi I am in search of Go positions that are easy to understand for humans, and difficult for computers. One incredibly simple example for human, where GNU Go horribly fails. The only

Re: [computer-go] Monte-Carlo is the future of 19x19

2006-11-30 Thread Rémi Coulom
Chrilly wrote: I believe that MC will be the only way to write a GO program in the near future leaving the other stuff in the dust (like Mogo has with 9x9 Monte Carlo Go.)This happened in computer chess several times, someone came up with some breakthrough idea, proved it with actual resul

Re: [computer-go] Anchor Player

2006-12-22 Thread Rémi Coulom
Don Dailey wrote: Hi Steve, What you fail to take into considerations is that a monte/carlo player may ruin it's chances before the weaker player has a chance to play a bad move. The monte carlo player sees all moves as losing and will play almost randomly. I don't agree. Here is the winning

Re: [computer-go] Fw: Compensation for handicap plays?

2006-12-28 Thread Rémi Coulom
Don Dailey wrote: I'll take a final poll - speak now or forever hold your peace! Should we: 1. Give white N-1 stones at end of game. (where N = handicap) 2. Give white N stones at end of game. (N = handicap) 3. Give white N stones except handicap 1 case. 4. Not worry about giving

[computer-go] f(score) instead of sign(score)

2008-02-27 Thread Rémi Coulom
Hi Jonas, welcome to the list. The idea of using f(score) instead of sign(score) is interesting. Long ago, I tried tanh(K*score) on 9x9 (that was before the 2006 Olympiad, so it may be worth trying again), and I found that the higher K, the stronger the program. Still, I believe that other f

[computer-go] Lockless hash table and other parallel search ideas

2008-03-21 Thread Rémi Coulom
Hi, I have got a lockless hash table to work, and I thought I'd share the results. A lockless hash table is very important, because the usual approach that consists in using a global lock during tree search and update does not scale well, especially on 9x9. But it is possible to create a com

Re: [computer-go] Lockless hash table and other parallel search ideas

2008-03-22 Thread Rémi Coulom
Don Dailey wrote: These are used in parallel chess programs, and it's very common. A pretty good article on this written by Hyatt (Crafty programmer and author of former world computer chess champion Cray Blitz) and it's called "A lock-less transposition table implementation for parallel searc

Re: [computer-go] Lockless hash table and other parallel search ideas

2008-03-23 Thread Rémi Coulom
Olivier Teytaud wrote: Hi, I have got a lockless hash table to work, and I thought I'd share the results. [...] Great! For networks of 4-cores, it is not very useful, but for highly smp machines it could be great - with your grid5000 account, you might run crazystone on a 16-core machine and

[computer-go] CG'2008 paper: Whole-History Ratings

2008-04-08 Thread Rémi Coulom
Hi, This is my CG2008 paper, for statisticians: Whole-History Rating: A Bayesian Rating System for Players of Time-Varying Strength Abstract: Whole-History Rating (WHR) is a new method to estimate the time-varying strengths of players involved in paired comparisons. Like many variations of the

Re: [computer-go] CG'2008 paper: Whole-History Ratings

2008-04-09 Thread Rémi Coulom
Andy wrote: Remi, you mentioned how the other algorithms predicted well and guessed that it's because the great majority of games are between experienced players whose strength is not changing much. I also feel that the existing KGS ratings work well for those players already. So how about f

Re: [computer-go] CG'2008 paper: Whole-History Ratings

2008-04-09 Thread Rémi Coulom
Don Dailey wrote: Hi Rémi, For a while I have considered overhauling the rating system for CGOS. My system is ad-hoc and based on gradually increasing K factor based on your opponents K in the standard ELO formula. I don't know if your idea here is feasible for a computer server, because

[computer-go] Programmers representative (ICGA)

2008-05-19 Thread Rémi Coulom
Hi, I thought I should let you know that I have accepted to serve as programmers representative on the board of the ICGA. That position had been vacant for a while, and the ICGA offered me to be an interim representative until the election of the new board (which will take place in Beijing).

Re: [computer-go] Programmers representative (ICGA)

2008-05-19 Thread Rémi Coulom
Jason House wrote: On May 19, 2008, at 10:09 AM, Rémi Coulom <[EMAIL PROTECTED]> wrote: Hi, I thought I should let you know that I have accepted to serve as programmers representative on the board of the ICGA. That position had been vacant for a while, and the ICGA offered me to

Re: [computer-go] learning algorithms such as TD(lambda)- state of the art

2008-05-20 Thread Rémi Coulom
Carter Cheng wrote: Hi, I have been leafing through a book "Reinforcement Learning" by Sutton and Barto. The book seems to serve as a decent introductory text to some of the issues which are mentioned in parts of Sylvain Gelly's thesis. The book however, is a decade old and I curious if there

[computer-go] Computer Olympiad registration reminder: 11 days left

2008-06-04 Thread Rémi Coulom
Dear Go programmers, I remind you that the deadline for early registration to the ICGA Computer Olympiad is June 15. After that date, registration fees will be doubled. You'll find all information on the web site of the tournament: http://www.grappa.univ-lille3.fr/icga/event.php?id=37 I hope

Re: [computer-go] Computer Olympiad registration reminder: 11 days left

2008-06-04 Thread Rémi Coulom
David Fotland wrote: Thanks! I just registered. Who else is going? David Great that you registered. The list of registered participants will be published on the web site after the deadline for early registration (June 15). I expect it will be an exceptional tournament. According to a pap

Re: [computer-go] Computer Olympiad registration reminder: 11 days left

2008-06-06 Thread Rémi Coulom
John Fan wrote: What is the protocol? GTP? Usually, games are played with whichever protocol both programs support. In 2006 and 2007, some games were played with gogui-twogtp, some were played on KGS, and some were played by hand. Note that the Go rules of the Computer Olympiad for superko

Re: [computer-go] Computer Olympiad registration reminder: 11 days left

2008-06-06 Thread Rémi Coulom
John Fan wrote: For uct/mc bots rely on the time_left command to dynamically adjust the number of simulations, seems kgs would the preferred protocol. I do not know well enough whether gogui-twogtp tracks time or not. But I guess it does not. Obviously playing by hand is hard to tell the bot h

Re: [computer-go] Computer Olympiad registration reminder: 11 days left

2008-06-08 Thread Rémi Coulom
Carter Cheng wrote: I am actually relatively nearby (Hong Kong) and would like to attend but I may not have a competitive program at this time. Is it possible to attend without a program and machine? Regards, Carter. Usually, access to the tournament is free for the audience. I am not sure

[computer-go] Presentation of Combinatorial Game Theory by Elwyn Berlekamp

2008-06-08 Thread Rémi Coulom
Hi, I just saw this: http://www.usgo.org/resources/downloads/berlekamp.wmv I thought some of you could be interested. References are there: http://math.berkeley.edu/~berlek/cgt/go.html Rémi ___ computer-go mailing list computer-go@computer-go.org http:

[Fwd: Re: [Fwd: Re: [computer-go] Computer Olympiad registration reminder: 11 days left]]

2008-06-09 Thread Rémi Coulom
allowed. However, we don't have confirmation regarding the internet access. The Chinese are busy with it. Best regards, Mark Winands -Original Message- From: Rémi Coulom [mailto:[EMAIL PROTECTED] Sent: Monday, June 09, 2008 10:36 AM To: Winands M (MICC) Subject: [Fwd: Re: [comput

Re: [Fwd: Re: [Fwd: Re: [computer-go] Computer Olympiad registration reminder: 11 days left]]

2008-06-10 Thread Rémi Coulom
Carter Cheng wrote: Thanks Remi. Are standard accommodations being provided by the site organizers or will we have to for the most part make our own arrangements? I guess I have a few more days to decide whether or not to submit a basic program which most likely will not win any games given ho

[computer-go] Participants in the Computer Olympiad

2008-06-23 Thread Rémi Coulom
Rémi Coulom wrote: David Fotland wrote: Thanks! I just registered. Who else is going? David Great that you registered. The list of registered participants will be published on the web site after the deadline for early registration (June 15). I expect it will be an exceptional tournament

Re: [computer-go] Participants in the Computer Olympiad

2008-06-24 Thread Rémi Coulom
Erik van der Werf wrote: On 6/23/08, Rémi Coulom <[EMAIL PROTECTED]> wrote: a schedule was posted too: http://www.grappa.univ-lille3.fr/icga/event_info.php?id=22 Not much details yet in this schedule... I'm interested to participate, but I'd like to know some more

Re: [computer-go] UCB/UCT and moving targets

2008-06-26 Thread Rémi Coulom
Peter Drake wrote: Can anyone point me to a thread, or at least some buzzwords? I'm having little luck googling for words like "recent" and "forget". Thanks, Peter Drake http://www.lclark.edu/~drake/ Try "discounted UCB": http://computer-go.org/pipermail/computer-go/2007-March/009033.html h

[computer-go] KCC Paduk

2008-06-27 Thread Rémi Coulom
Hi, KCC just registered to the 19x19 tournament of the Computer Olympiad: http://www.grappa.univ-lille3.fr/icga/tournament.php?id=181 I remember reading about some plagiarism allegations, for instance there: http://www.msoworld.com/mindzine/news/scandals/scandal0400.html http://web.archive.org/w

[computer-go] 2008 World 9x9 Computer Go Championship in Taiwan

2008-07-01 Thread Rémi Coulom
Hi, This was just announced on the ICGA Tournaments web site: http://go.nutn.edu.tw/eng/main_eng.htm It is right before the Computer Olympiad, and registration is free for participants in the Olympiad. Rémi ___ computer-go mailing list computer-go@c

Re: [computer-go] 2008 World 9x9 Computer Go Championship in Taiwan

2008-07-01 Thread Rémi Coulom
Erik van der Werf wrote: That's a pretty good deal!!! http://64.68.157.89/forum/viewtopic.php?topic_view=threads&p=193819&t=21591 Why isn't there any sponsoring like this for the other tournaments? Erik I considered entering with my chess program for this reason. But since the tournaments a

Re: [computer-go] EGC 2008 computer go event

2008-07-07 Thread Rémi Coulom
[EMAIL PROTECTED] wrote: http://www.computer-go.info/egc2008/ Hi, I see myself listed as possible participant on that page, so I would like to say that I will not participate, sorry. I won't travel to Sweden, and if I am not going to be there in person, then I prefer to participate in KGS

[computer-go] Fuego

2008-07-08 Thread Rémi Coulom
Hi, I believe they did not announce it to the list, so in case you don't know, you can find the source code of Fuego there: http://fuego.sourceforge.net/ It seems to be performing very well on CGOS. Rémi ___ computer-go mailing list computer-go@compu

[computer-go] Some recent papers

2008-07-08 Thread Rémi Coulom
Hi, I recently found those papers. The unimaas website seems to be down right now, but I expect it will be back online soon. THE PARALLELIZATION OF MONTE-CARLO PLANNING: http://hal.archives-ouvertes.fr/docs/00/28/78/67/PDF/icin08.pdf Parameter Tuning by the Cross-Entropy Method: http://www.cs

Re: [computer-go] Some recent papers

2008-07-09 Thread Rémi Coulom
Markus Enzenberger wrote: Rémi Coulom wrote: I could not find the link for suggesting updates to the computer go bibliography, so if the people from the University of Alberta read this, they might like to add those papers to their bibliography. I probably won't continue maintainin

Re: [computer-go] Some recent papers

2008-07-09 Thread Rémi Coulom
Urban Hafner wrote: Rémi Coulom wrote: | If nobody at UofA wants to continue, then I can do it. How about using citeulike.org? Someone could create a group for computer-go and people could add new papers. That way it wouldn't be the responsibility of just one person to keep the list

Re: [computer-go] Some recent papers

2008-07-09 Thread Rémi Coulom
Markus Enzenberger wrote: Rémi Coulom wrote: This seems to be a good solution. I have just applied to your computer-go group. We just have to try to import the bibtex file. Markus, can you do it ? Or tell us where to download the bibtex file ? I added a link to the bib-file on the website

Re: [computer-go] gnugo3.7.10_10bis on 19x19 CGOS

2008-07-10 Thread Rémi Coulom
Martin Mueller wrote: This is a message for whoever is running gnugo3.7.10_10bis on 19x19 CGOS. This program does not seem to finish the games under CGOS rules correctly. I believe you need to set options such as --mode gtp --chinese-rules --capture-all-dead For example, look at game 37209.sg

Re: [computer-go] Computer Go tournament at EGC, Leksand, Sweden

2008-07-17 Thread Rémi Coulom
Nick Wedd wrote: CrazyStonepossible possible This is "yes" from my point of view. It all depends on the availability of an operator. What is the komi for the 9x9 tournament ? I would prefer 7.5 because it is also the komi of the Computer Olympiad. Thanks, Rémi ___

Re: [computer-go] Computer Go tournament at EGC, Leksand, Sweden

2008-07-17 Thread Rémi Coulom
Don Dailey wrote: I also feel for the Mac people and also people that have built programs that run on networks of workstations or other potential supercomputer programs that would not be able to participate. - Don Although I am one of the participants with access to non-conventional comput

Re: [computer-go] Computer Go tournament at EGC, Leksand, Sweden

2008-07-17 Thread Rémi Coulom
David Doshay wrote: Someday computer Go will evolve enough to have enough trust for remote computing. But not today, unfortunately. Cheers, David The Computer Olympiad has allowed it, at least in 2006, 2007, and 2008. Rémi ___ computer-go mailing l

Re: [computer-go] Computer Go tournament at EGC, Leksand, Sweden

2008-07-17 Thread Rémi Coulom
David Doshay wrote: Had I known that I might have participated. I thought I would have to ship my cluster, and with my previous traveling cluster I thought it would never get past the US airport security ... is was such a mass of wires and parts that it hardly even looked like a computer. Cheers

Re: [computer-go] linux and windows

2008-07-17 Thread Rémi Coulom
Don Dailey wrote: But all of this presents another issue - most of us don't like to be forced to work in another environment. It really is far more logical to accommodate the programmers when it is not so difficult to do so and especially when it requires much less total effort than making

[computer-go] Olympiad Schedule

2008-07-19 Thread Rémi Coulom
Hi, A schedule for the 9x9 and 19x19 tournaments at the Computer Olympiad has been posted: http://www.grappa.univ-lille3.fr/icga/event_info.php?id=22 Rémi ___ computer-go mailing list computer-go@computer-go.org http://www.computer-go.org/mailman/lis

[computer-go] Monte Carlo evaluation in chess

2008-07-20 Thread Rémi Coulom
Rybka 3 has Monte-Carlo evaluation: http://www.chessbase.com/newsdetail.asp?newsid=4772 Rémi ___ computer-go mailing list computer-go@computer-go.org http://www.computer-go.org/mailman/listinfo/computer-go/

[computer-go] Terminology: MC-UCT vs MCTS vs MC-BFS

2008-07-29 Thread Rémi Coulom
Don Dailey wrote: I hate to keep calling this MC-UCT because many programs do not use UCT so until we come up with better terminology I'm going to call it MC-BFS for Monte Carlo with Best First Search. I think "Monte Carlo Tree Search" is a good name. The University of Maastricht peop

Re: [computer-go] August KGS bot tournament

2008-07-29 Thread Rémi Coulom
Nick Wedd wrote: In message <[EMAIL PROTECTED]>, Jason House <[EMAIL PROTECTED]> writes Option C sounds best to me too. (C.) Hold it on August 17th. Unless people here persuade me otherwise, I tend to prefer (C). Nick Ok, C is carried unanimously. August 17 it will be. Another problem

[computer-go] Reports on UEC Cup and Japanese Computer-Games Workshop

2008-07-30 Thread Rémi Coulom
Nick Wedd wrote: My impression is that in Japan, there are conferences like that. Nick Your message reminds me that I had not told the list yet about those reports I wrote for the ICGA Journal: http://remi.coulom.free.fr/reports/ICGAJ-GPW.pdf http://remi.coulom.free.fr/reports/ICGAJ-UECCup.

Re: [computer-go] What Do You Need Most?

2008-07-31 Thread Rémi Coulom
Hideki Kato wrote: Mark Boon: <[EMAIL PROTECTED]>: Opposed to removing 9x9. In favor of adding 13x13 wthout removing 9x9. Me too. If, however, limited two 9x9 and 13x13 might be better now as 19x19 is not so utilized, IMHO. It's just early this year many programs started being run

Re: [computer-go] Gui,GTP, and exploration of internal nodes states.

2008-07-31 Thread Rémi Coulom
Denis fidaali wrote: Hi there. To my best knowledge, most people do use Gogui and gtp. This provides interesting ways to see analysis results. But only in a "flat" way. You'll find a tool for visualizing MC trees in gogui, on Guillaume's page: http://www.cs.unimaas.nl/g.chaslot/ Rémi ___

Re: [computer-go] Strange problem while connecting to CGOS

2008-08-06 Thread Rémi Coulom
Thomas Lavergne wrote: 15:02:10E->C =c5 15:02:10Apparently, engine crashed But there is no sign of crash in my engine, all goes like if the cgos client have interrupt my engine. Maybe you should send "= c5" (with a space) instead of "=c5". Rémi

Re: [computer-go] mogo beats pro!

2008-08-07 Thread Rémi Coulom
Well done, Mogo team ! terry mcintyre wrote: moves,” like those in the lower right-hand corner, where Moyogo took Typo :-) Rémi ___ computer-go mailing list computer-go@computer-go.org http://www.computer-go.org/mailman/listinfo/computer-go/

Re: [computer-go] What's happening at the European Go Congress?

2008-08-10 Thread Rémi Coulom
Gian-Carlo Pascutto wrote: Hi all, there doesn't seem to be any news from the European Go Congress. Nevertheless, I see that partial results were posted: 19 x 19 Results 1stCrazy Stone6/6 2nd Leela 5/6 3rdMany Faces of Go 4/6 9 x 9 Results 1stLee

Re: [computer-go] Re: What's happening at the European Go Congress?

2008-08-11 Thread Rémi Coulom
Nick Wedd wrote: Looking at LeelaBot's games on KGS since the tournament, I see only two: the one I posted, against sestir, and one against egc1p with 0.5 komi, which I cannot open, as it was not finished by the players and KGS is treating it as escaped. Nick The link I sent yesterday wor

Re: [computer-go] Re: What's happening at the European Go Congress?

2008-08-11 Thread Rémi Coulom
Gian-Carlo Pascutto wrote: In message <[EMAIL PROTECTED]>, This was foolish of me because I had resumed the game, and was allowing LeelaBot's time to pass. I have carelessly destroyed the evidence of LeelaBot's remaining time. There is now only my word (and perhaps the operator's) fo

Re: [computer-go] Re: What's happening at the European Go Congress?

2008-08-11 Thread Rémi Coulom
Basti Weidemyr wrote: What would you have done in a case like this? :) You could not declare that game a win for the computer and survive. Rémi ___ computer-go mailing list computer-go@computer-go.org http://www.computer-go.org/mailman/listinfo/com

Re: [computer-go] Seki in playouts

2008-08-12 Thread Rémi Coulom
Martin Mueller wrote: I did not realize that his program, even with a large tree, would not be able to recognize the seki. I knew of course that the original Mogo playouts had this problem, but I thought all strong programs had solved it by now... Hello Erik, seki in playouts is still an un

[computer-go] Depth-first UCT

2008-08-12 Thread Rémi Coulom
Gian-Carlo Pascutto wrote: The *paper* about MTD(f) is extremely interesting because it shows that many best-first algorithms can be rewritten as depth-first algorithms. It happened for SSS, it happened for proof-number search. Who will make it happen for UCT? Actually, there was a pape

[computer-go] rz-74 on CGOS ?

2008-08-18 Thread Rémi Coulom
Hi, Anybody knows what is rz-74? It is playing very strong at 19x19, and it looks like nothing I have seen before. Monte-Carlo with a lot of domain knowledge, maybe. A very strong classical program converted to Monte-Carlo would be my guess. Probably not MonteGNU. Handtalk? Go++? Very intere

Re: [computer-go] rz-74 on CGOS ?

2008-08-18 Thread Rémi Coulom
Don Dailey wrote: I was curious about that too, who is rz-74? The name is perhaps a clue. Is it at version 74?I haven't been watching the games, but are you saying it behaves like a Monte Carlo program? - Don After watching more games, I am less impressed by its strength. It is def

Re: [computer-go] rz-74 on CGOS ?

2008-08-18 Thread Rémi Coulom
Magnus Persson wrote: I looked at the last games played by rz-74, and it looks like a MC-program given how how it plays in the opening (odd moves in the center). I also doubt there are any traditional programs who can get 90% against gnugo on 19x19. Are there? I agree that the winning rate a

Re: [computer-go] http://www.grappa.univ-lille3.fr/icga/ site down?

2008-08-20 Thread Rémi Coulom
Ian Osgood wrote: I haven't been able to access the ICGA tournament site for over a week. Anyone know anything about it? Ian ___ computer-go mailing list computer-go@computer-go.org http://www.computer-go.org/mailman/listinfo/computer-go/ Sorry fo

Re: [computer-go] http://www.grappa.univ-lille3.fr/icga/ site down?

2008-08-20 Thread Rémi Coulom
Ian Osgood wrote: I haven't been able to access the ICGA tournament site for over a week. Anyone know anything about it? Ian ___ computer-go mailing list computer-go@computer-go.org http://www.computer-go.org/mailman/listinfo/computer-go/ The websi

Re: [computer-go] 2008 Olympiad

2008-08-21 Thread Rémi Coulom
Ian Osgood wrote: Thanks! I see that KCC Paduk is no longer on the list of participants for 2008. Have they withdrawn? Ian Their registration was rejected because of "past problems with [this] program in other computer Go tournaments" (these are the words of David Levy). The ICGA will ma

Re: [computer-go] Counting the final score with seki

2008-08-25 Thread Rémi Coulom
Jacques Basaldúa wrote: But when self atari is avoided in the playouts, groups live in seki and counting dame points really fast is required. You should not worry about that kind of speedup. Looking at neighbors has a very small cost. Negligible in comparison to the playout. Especially if

Re: [computer-go] reminder, there is another possible computer go contest in Taizhou

2008-08-27 Thread Rémi Coulom
David Fotland wrote: In late september there is a computer go contest in Taizhou, with cash prizes. They might cancel this contest due to lack of participation, so if you are thinking of going, please let them know today or tomorrow. David How many participants do they have ? In the last mess

Re: [computer-go] reminder, there is another possible computer go contest in Taizhou

2008-08-27 Thread Rémi Coulom
Erik van der Werf wrote: I already booked my flights; Steenvreter will only participate in the official ICGA events. Personally I think it is bad to have 3 competing tournaments so close to each other. I must say that I'm quite puzzled by the behavior of the local organizers in China. In my opi

Re: [computer-go] reminder, there is another possible computer go contest in Taizhou

2008-08-27 Thread Rémi Coulom
No need of translation: http://219.142.86.87/English/index.asp This is the location, as indicated in the invitation e-mail: http://maps.google.com/maps?q=%E5%8F%B0%E5%B7%9E&ie=UTF8&oe=utf-8&client=firefox-a&ll=24.846565,120.058594&spn=67.50517,125.683594&z=3 Rémi

Re: [computer-go] yet a mogo vs human game

2008-08-27 Thread Rémi Coulom
Don Dailey wrote: On Wed, 2008-08-27 at 14:56 -0700, Bob Hearn wrote: The MoGo team has said that MoGo wins 62% of its games against a baseline version when the processing power doubles. That's about half a stone (if you assume you can generalize to human opponents). Yes, I believe

Re: [computer-go] yet a mogo vs human game

2008-08-28 Thread Rémi Coulom
Don Dailey wrote: I don't really believe the ELO model is "very wrong." I only believe it is a mathematical model that is "somewhat" flawed for chess and presumable also for other games. Do you have an alternative that might be more accurate? - Don I don't have very precise data about

Re: [computer-go] yet a mogo vs human game

2008-08-28 Thread Rémi Coulom
This was my post about multi-dimensional Elo: http://www.mail-archive.com/computer-go@computer-go.org/msg06267.html I have not tried it since that time. Rémi ___ computer-go mailing list computer-go@computer-go.org http://www.computer-go.org/mailman/li

Re: [computer-go] Kaori-Crazystone

2008-09-04 Thread Rémi Coulom
[EMAIL PROTECTED] wrote: Wasn't it today that Crazystone had a match against a professional player? During the FIT2008 conference at Keio University? Does anyone know the result and if the game is available somewhere? Jonas ___ computer-go mailing lis

Re: [computer-go] Kaori-Crazystone

2008-09-04 Thread Rémi Coulom
terry mcintyre wrote: Congratulations! Thanks. I'm dying for details! What was the time limit? The organizers asked that the program should play at a constant time (30 second) per move. The sgf file contains time stamps (you can see the time with gogui, for instance). I don't know what

Re: [computer-go] Kaori-Crazystone

2008-09-04 Thread Rémi Coulom
Don Dailey wrote: I'm thinking that if we estimate Aoba at 10d amateur and CrazyStone wins with 8 stone handicap, it is roughly equivalent to beating a 2d player without handicap and that we can subtract 2 stones to say that with pretty high confidence CrazyStone is playing at least 1 kyu (but t

Re: [computer-go] Kaori-Crazystone

2008-09-04 Thread Rémi Coulom
Andy wrote: I'm excited to see a computer reach 1d as well. For me I'm waiting to see a bot hold a 1d rating consistently on kgs. Right now CrazyStone has been rated 1d briefly, but hasn't been able to maintain it. It's currently 1k. I put a small table of the progress of a few bot's ratin

Re: [computer-go] Kaori-Crazystone

2008-09-04 Thread Rémi Coulom
Nick Wedd wrote: When mandelbrot resigns, saying "I was pwned", it appears to me that he is ahead. If he plays at q11 instead of resigning, I think he can kill Crazy Stone's s12 group - but it's difficult, and I'm not sure. Bots are strong at psychological wins :-) Rémi __

Re: [computer-go] Time controls in bots vs human matches

2008-09-04 Thread Rémi Coulom
Gian-Carlo Pascutto wrote: Andy wrote: Same thing for bots on KGS. As far as I understand, GTP only supports canadian byo-yomi which is not so popular. Leela should support it but I have never tried. The problem is not GTP, but the KGS client. The time_left of kgsgtp does not give

Re: [computer-go] 9x9 to 19x19 scaling strangeness

2008-09-09 Thread Rémi Coulom
David Fotland wrote: I made a change over the weekend, which looks like it makes 9x9 150 ELO weaker and 19x19 over 200 ELO stronger. Very strange. David ___ computer-go mailing list computer-go@computer-go.org http://www.computer-go.org/mailman/listi

Re: [computer-go] 9x9 to 19x19 scaling strangeness

2008-09-09 Thread Rémi Coulom
David Fotland wrote: Can you put crazystone back on 19x19 so I can see if it is just a fluke against fuego? I added locality to the light playouts - play near last or second to last move, and some code to handle long ladders in playouts. I don’t think this is anything unusual. I think you h

[computer-go] Re: books recommend

2008-10-25 Thread Rémi Coulom
Sihai Zhang wrote: > Are there some good books for computer Go course? Thanks! Hi, I am not aware of a book that would cover modern go-programming techniques (ie Monte-Carlo). You'll find plenty of ressources in the Computer-go bibliography: http://www.citeulike.org/group/5884/library Maybe

Re: [computer-go] computer-go textbook ?

2008-11-03 Thread Rémi Coulom
Sihai Zhang wrote: Hi all, I am now seeking some good textbooks for computer-go course in my university for undergraduates. I hope I can get some advice from this mailing list, thank you all! Best regards, Jacky Zhang USTC, China ___ computer-go ma

Re: [computer-go] Monte-Carlo and Japanese rules

2008-11-06 Thread Rémi Coulom
Ingo Althöfer wrote: Hello all, two questions. (i) Do there exist strong 9x9-go programs on Monte-Carlo base for Japanese rules? (ii) Having available only programs for Chinese rules, but playing in a tournament with Japanese rules, which special tricks and settings should be used to maximise w

Re: [computer-go] Re: hex robot

2008-11-27 Thread Rémi Coulom
Dave Dyer wrote: At 01:52 AM 11/27/2008, Denis fidaali wrote: ... But what really lacks (or i wasn't able to find anyway) is a strong community like there is for go. A CGOS equivalent. A GTP equivalent. A Gogui equivalent. A Kgs equivalent. I don't think there's a match between you

Re: [computer-go] Re: WMSG - Scoring

2008-12-07 Thread Rémi Coulom
Ingo Althöfer wrote: Concerning the next Computer Olympiad and having in mind the discussion on the last one ("how fair is 7.5 komi for 9x9 computer games?") the WMSG scoring should be worth to be discussed for 9x9. Nobody will want such a scoring in computer go. It is not a matter of addi

Re: [computer-go] UEC cup

2008-12-15 Thread Rémi Coulom
Darren Cook wrote: I was reading a report on the UEC Cup [1] on a (Japanese) blog, and if I understood correctly the results were: 1. Crazy stone 2. Fudogo (?) (Hideki Kato's program) 3. Many Faces 4. Katsunari (Mogo had time trouble and pulled out?) Crazy stone then played against Kaor

Re: Results of the 2nd UEC Cup (Re: [computer-go] UEC cup)

2008-12-17 Thread Rémi Coulom
David Fotland wrote: Congratulations to Remi for Crazystone's second UEC cup victory, and solid win over a professional. David Thank you David. For some reason, games between Crazy Stone and MFG are always complicated and exciting. I watched a few when we were playing on CGOS, and they we

Re: Results of the 2nd UEC Cup (Re: [computer-go] UEC cup)

2008-12-17 Thread Rémi Coulom
jonas.k...@math.u-psud.fr wrote: Although Tei and Aoba Professionals explained the match at the front stage with a projection, the game was so complicated that I couldn't see which is winning until near the end. Another semi-final match, my Fudo Go vs Katsunari, also was shown on the screen but

[computer-go] Format of the UEC Cup

2008-12-18 Thread Rémi Coulom
Shunsuke SOEDA wrote: Another reason we chose the single elimination tournament, is that the finals in the single elimination is the "finals", while in other matching systems, the final game might become a dull game. We know that we are sacrificing accuracy, and do want to know what the particip

Re: [computer-go] Rumors on next Computer-Olympiad

2008-12-20 Thread Rémi Coulom
Ingo Althöfer wrote: PS: Are there any gentlewomen programmers around in computer go ? Yumiko Suzuki participated in the First UEC Cup with Bell. Rémi ___ computer-go mailing list computer-go@computer-go.org http://www.computer-go.org/mailman/list

Re: [computer-go] Nullmoves in MCTS and UCT?

2008-12-20 Thread Rémi Coulom
Ingo Althöfer wrote: Question: Have nullmove-concepts been tried or analysed in MCTS or UCT-settings? Background of the question: Using alpha-beta tree search, the (asymptotic) percentage of nullmove cutoffs may help as an indicator for the "naturality" or "interestingness" of a (newly invented

Re: [computer-go] Nullmoves in MCTS and UCT?

2008-12-23 Thread Rémi Coulom
Gian-Carlo Pascutto wrote: Rémi Coulom wrote: Null-move pruning only make sense in alpha-beta. MCTS/UCT are more like min-max. They do no alpha-beta pruning, so cannot do null-move pruning. Null move works like this: if after passing and a small search the position still looks good

Re: [computer-go] Nullmoves in MCTS and UCT?

2008-12-24 Thread Rémi Coulom
Gian-Carlo Pascutto wrote: Rémi Coulom wrote: Did you manage to get something to work with null move ? When Leela runs the first simulation in a node, it plays 2 moves for the same side, then does a playout. If the playout loses for the not-passing side, I add x lost games to the

Re: [computer-go] 3-4-5 rule

2008-12-30 Thread Rémi Coulom
Don Dailey wrote: You are right, the d3p version rallied to come from behind and staged an exciting and dramatic comeback: Rank Name Elo+- games score oppo. draws 1 d3p 2016 77 7521 52% 20000% 2 base 2000 75 7721 48% 20160% - Don If you'd

Re: [computer-go] 3-4-5 rule

2008-12-30 Thread Rémi Coulom
Don Dailey wrote: I'm not sure I understand - when you say N playouts, do you mean N visits of that node? Because once you visit a node, you expand it, no longer doing playouts from that point. Yes, I mean N visits. In my view, every playout starts at the root. For instance if e5 is pla

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