NNs have many weaknesses for trading. GAs can work, but there are much simpler ways to make money in the markets...
Intro the Genetic Algorithms: http://www.doc.ic.ac.uk/~nd/surprise_96/journal/vol4/tcw2/report.html
Somemore background: http://www.amazon.com/gp/product/00..._1/103-6716207-6131052?_encoding=UTF8&s=books
Intro the Genetic Algorithms: http://www.doc.ic.ac.uk/~nd/surprise_96/journal/vol4/tcw2/report.html
Somemore background: http://www.amazon.com/gp/product/00..._1/103-6716207-6131052?_encoding=UTF8&s=books