Datasets could be downloaded from:
* static MNIST:
http://www.cs.toronto.edu/~larocheh/public/datasets/binarized_mnist/binarized_mnist_train.amat
http://www.cs.toronto.edu/~larocheh/public/datasets/binarized_mnist/binarized_mnist_valid.amat
http://www.cs.toronto.edu/~larocheh/public/datasets/binarized_mnist/binarized_mnist_test.amat
