Neural Networks bias node

Always use bias nodes!!!
Cross-Network Interactions in So I've learned a lesson over the last few days. First of all, I noticed looking at the last few versions of my trading program that there are serious inconsistencies that just didn't make sense. It seemed that no matter how I fit the training set I did could not get consistent trades in the test set. Also, by making simple changes to training weights and such, I would see radical changes in performance.
I was thinking of how to add some consistency to the performance of my system. I did some reading into the Neural Network research, and thought about bias nodes. Originally I didn't use them. It's difficult to find a good explanation of exactly what they do for the network. I was under the assumption that they were only necessary if you were using some sort of supervised training method, such as back-propagation. How wrong I was... I decided to implement bias into my system, and the change was immediate. Suddenly I'm starting to see profitable test sets. That's a very good sign to the viability of my methods. I won't have good data probably until tomorrow, but watching the samples come in things look really good.
By the way, if you don't know what a bias is in a neural network, biases basically act as additional nodes in the input and hidden levels, with

Source: AI in Finance Blog

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1. This loan will provide the necessary capital to purchase software, marketing materials and entrepreneurial educational tool taught by master entrepreneur and CEO of Nouveau Riche University, Jim Piccolo. With the ability to now focus full-time as opposed to free-time I expect to increase my income to a respectable $1,800/month.
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