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[Bug-gnubg] Alternative weights files

From: Philippe Michel
Subject: [Bug-gnubg] Alternative weights files
Date: Tue, 18 Sep 2012 00:54:02 +0200 (CEST)
User-agent: Alpine 2.00 (BSF 1167 2008-08-23)

I have uploaded new weights at http://www.gnubg.org/media/nn-training/pmichel/nets/20120907/

The difference since what I posted in June is mostly further training of the contact net, and this time the result is statistically significantly better than the current nets.

new @ 0ply won 50.19% of 5 pts matches against current @ 0ply (1M trials)

new @ 2ply won 50.69% of 5 pts matches against current @ 2ply (100k trials)

The latter, if not an outlier, would be a great result. A possible explanation for the bigger improvement compared to 0ply could be that with the new nets, 1ply evaluation works adequately (wins 52.8% of 10k 5ptrs against 0ply) when it is apparently not the case with the current nets.

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