Write a paper on analyzing the MNIST data set with XGBoost, Keras and Tensorflw
Section 1 introduction to the MNIST dataset
http://yann.lecun.com/exdb/mnist/
https://en.wikipedia.org/wiki/MNIST_database
Section 2 Apply XGBoost to the MNIST dataset
Section 3 Apply Keras & Tensorflow to the MNIST dataset
https://colab.research.google.com/drive/1iTGGKIfxRRrhWpQQUqHdfVMrfqkdE0un
https://colab.research.google.com/github/tensorflow/tpu/blob/master/tools/colab/keras_mnist_tpu.ipynb