Update WDL model for NNUE #3582
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This updates the WDL model based on the LTC statistics in June this year (10M games), so from pre-NNUE to NNUE based results. (for old results see, official-stockfish#2778) As before the fit by the model to the data is quite good. No functional change
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Some graphs illustrating the model: 1D plot model versus data Fit for the as and bs parameters Data 2D plot: Corresponding model: Data, based on material on the board, instead of ply: This latter plot has changed quite a bit compared to the old results pre-NNUE (see also https://github.com/glinscott/fishtest/wiki/UsefulData#for-positions-grouped-by-move-number) |
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That's a comparison between the old and new models... what eval at a given move is required to have a 50% win chance.
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That's a plot of the 'b' parameter, and this shows that the evals are now more quickly decisive, so deviating from the above 'a' values more likely leads to a win or a draw.
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MichaelB7
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Jul 6, 2021
This updates the WDL model based on the LTC statistics in June this year (10M games), so from pre-NNUE to NNUE based results. (for old results see, official-stockfish#2778) As before the fit by the model to the data is quite good. closes official-stockfish#3582 No functional change
vondele
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Dec 10, 2021
this intends to skip (or more correctly weight) data points that are possibly incorrectly evaluated, i.e. retain data that are more likely to be correct. Was used to train two recent SF nets: official-stockfish/Stockfish#3816 official-stockfish/Stockfish#3808 --no-wld-fen-skipping option can be used to disable the default
vondele
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Apr 15, 2022
This updates the WDL model based on the LTC statistics for the last month (8M games). for old results see: official-stockfish#3582 official-stockfish#2778 the model changed a bit from the past, some images to follow in the PR No functional change.
vondele
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Apr 16, 2022
This updates the WDL model based on the LTC statistics for the last month (8M games). for old results see: official-stockfish#3582 official-stockfish#2778 the model changed a bit from the past, some images to follow in the PR closes official-stockfish#3981 No functional change.
vondele
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This updates the WDL model based on the LTC statistics for the two weeks (3M games). for old results see: official-stockfish#3981 official-stockfish#3582 official-stockfish#2778 closes official-stockfish#4115 No functional change.
PikaCat-OuO
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Oct 7, 2022
This updates the WDL model based on the LTC statistics for the two weeks (3M games). for old results see: official-stockfish/Stockfish#3981 official-stockfish/Stockfish#3582 official-stockfish/Stockfish#2778 closes official-stockfish/Stockfish#4115 No functional change. (cherry picked from commit e639c45)
dav1312
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Oct 21, 2022
This updates the WDL model based on the LTC statistics for the last month (8M games). for old results see: official-stockfish#3582 official-stockfish#2778 the model changed a bit from the past, some images to follow in the PR closes official-stockfish#3981 No functional change.
Joachim26
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Nov 29, 2023
This updates the WDL model based on the LTC statistics for the last month (8M games). for old results see: official-stockfish#3582 official-stockfish#2778 the model changed a bit from the past, some images to follow in the PR closes official-stockfish#3981 No functional change.
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This updates the WDL model based on the LTC statistics in June this year (10M games),
so from pre-NNUE to NNUE based results.
(for old results see, #2778)
As before the fit by the model to the data is quite good.
No functional change