a>
[5] Brain.js - @hartur <a href="https://github.com/harthur/brain">https://github.com/harthur/brain</a>
[6] Backpropagation - Wikipedia <a href="http://en.wikipedia.org/wiki/Backpropagation">http://en.wikipedia.org/wiki/Backpropagation</a>
[7] How the backpropagation algorithm works - M.Nielsen <a href="http://neuralnetworksanddeeplearning.com/chap2.html">http://neuralnetworksanddeeplearning.com/chap2.html</a>
[8] Boosting (Machine Learning) - Wikipedia <a href="http://en.wikipedia.org/wiki/Boosting_(mach