His tests are so simple that he's not really testing anything. For some real analysis of how neural nets stand up to other player prediction models, check this out:
In particular, read the paper titled "Opponent Modeling in Poker: Learning and Acting in a Hostile Environment". Section 4 outlines several prediction methods, one of which is a neural net.
http://spaz.ca/poker/
In particular, read the paper titled "Opponent Modeling in Poker: Learning and Acting in a Hostile Environment". Section 4 outlines several prediction methods, one of which is a neural net.