Search found 533 matches

by gladius
Wed Dec 19, 2018 4:39 am
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Policy training in Alpha Zero, LC0 ..
Replies: 26
Views: 2279

Re: Policy training in Alpha Zero, LC0 ..

Input of a training example consists of position value plus probability for each legal move And how do you know the probability for each legal move from a PGN? You don't. In the normal training of AlphaZero and LC0, your training samples are written at the end of a search, and the visit count of ea...
by gladius
Sun Nov 18, 2018 6:49 pm
Forum: Computer Chess Club: General Topics
Topic: Houston: We have lift off ...
Replies: 55
Views: 6675

Re: Houston: We have lift off ...

That self play graph :shock: Almost total fiction. They even have some inversions on long spans of self-Elo versus real-Elo. Nonetheless, the progress overall is real, on very long spans. Since I am following it, 1.5 days, the self-Elo improved by 650 (!!!) Elo points, but against SF8 (real-Elo) by...
by gladius
Thu Apr 19, 2018 8:39 pm
Forum: Computer Chess Club: General Topics
Topic: LCzero sacs a knight for nothing
Replies: 106
Views: 14487

Re: LCzero sacs a knight for nothing

Are you telling me that this is not a problem for L0 or A0, and that it can be solved with bigger net and more training !? The purpose of the experiment it to find out... We are only at the beginning. Seriously. I think you should give LC0 some time. I know you have shown that MCTS is a disaster in...
by gladius
Thu Apr 19, 2018 7:40 pm
Forum: Computer Chess Club: General Topics
Topic: LCzero sacs a knight for nothing
Replies: 106
Views: 14487

Re: LCzero sacs a knight for nothing

Are you telling me that this is not a problem for L0 or A0, and that it can be solved with bigger net and more training !? The purpose of the experiment it to find out... We are only at the beginning. Seriously. I think you should give LC0 some time. I know you have shown that MCTS is a disaster in...
by gladius
Thu Apr 19, 2018 6:44 pm
Forum: Computer Chess Club: Programming and Technical Discussions
Topic: Stockfish evaluation elo rating
Replies: 18
Views: 3556

Re: Stockfish evaluation elo rating

LC0 plays quite reasonable chess using only its evaluation I was talking about a minimax searcher, as standard Stockfish is. But even LC0 doesn't just evaluate a non-quiescent position and use that eval to choose moves. My understanding is it does a form of Monte Carlo tree search and that does not...
by gladius
Thu Apr 19, 2018 4:51 pm
Forum: Computer Chess Club: General Topics
Topic: about an idea to learn better for LC0
Replies: 20
Views: 2855

Re: about an idea to learn better for LC0

The strategy you advocate is fundamentally flawed. The point is that different network topologies might have wildly different performance. In such a situation it pays to try things in parallel. Suppose there are two methods, A requiring effort 1, and B requiring effort 3, but I don't know which is ...
by gladius
Sun Apr 15, 2018 6:46 am
Forum: Computer Chess Club: General Topics
Topic: Run LC Zero in LittleBlitzerGUI
Replies: 14
Views: 2396

Re: Run LC Zero in LittleBlitzerGUI

But using the GPU would be not fair for the opponent engines, which are running on CPU only, of course. Lol. What is so funny about the fact, that a valid testing and rating means, each engine should have access on the same resources?!? LC Zero can use the GPU for its learning and improving. But no...
by gladius
Sat Apr 14, 2018 9:55 pm
Forum: Computer Chess Club: General Topics
Topic: Run LC Zero in LittleBlitzerGUI
Replies: 14
Views: 2396

Re: Run LC Zero in LittleBlitzerGUI

But using the GPU would be not fair for the opponent engines, which are running on CPU only, of course. Lol. What is so funny about the fact, that a valid testing and rating means, each engine should have access on the same resources?!? LC Zero can use the GPU for its learning and improving. But no...
by gladius
Thu Apr 12, 2018 11:15 pm
Forum: Computer Chess Club: General Topics
Topic: LCZero on 10x128 now
Replies: 0
Views: 751

LCZero on 10x128 now

Thanks to all contributors! Huge effort by Error323 and KillerDucky especially. There will be a slight drop in game speed on GPUs, so you should run a full tune with the new network. CPUs take more of a hit unfortunately. But the new network should have a pretty high ceiling hopefully :). 10x128 mea...
by gladius
Sat Apr 07, 2018 6:50 pm
Forum: Computer Chess Club: General Topics
Topic: LCZero: Progress and Scaling. Relation to CCRL Elo
Replies: 604
Views: 96889

Re: LCZero: Progress and Scaling. Relation to CCRL Elo

The official list progress as seen here http://lczero.org/networks being statistically inconsistent, I decided to test the "best" up to now ID83 (4694) against the latest ID99 (4635), an apparent regression after a whopping 700,000 games. To test not directly, but on some more objective measures. F...