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neural net input, hidden and output units

Posted By: Michael Petch
Date: Friday, 19 August 2011, at 8:32 a.m.

In Response To: neural net input, hidden and output units (Frank Berger)

I do believe TD-Gammon did use 40 Hidden Nodes, and yes the observation that Gerald didn't take into account Backgammons always fascinated me - I'm not sure why either.

For those (others beside Frank) who may be curious the 4 outputs from TD were Player X wins, Player O wins, Player X Gammons, Player O Gammons. The bots with 5 outputs use wins, gammon wins, backgammon wins, gammon losses and backgammon losses. The number of losses can be computed from the wins so isn't necessary.

GNUBG's inputs are 4 inputs per player per 25 positions, and an additional 50 pseudo type inputs.

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