https://goodfeli.github.io/dlbook/
http://neuralnetworksanddeeplearning.com/
http://arxiv.org/abs/1305.0445
https://aindrasystems.wordpress.com/2015/04/11/deep-learning-online-courses-reading-materials-and-software-packages/
http://www.cse.buffalo.edu/~hungngo/classes/2015/705/
http://www.analyticbridge.com/group/books/forum/topics/free-deep-learning-book-mit-press