global L1 scaling 0.5 (cifar-specific), softmax scaling for entropy 0.875, L1 scaling 10, entropy scaling 4.5,
8x8 cifar window, 400 units, 11 ista iterations, 1 regularization iterations
learning rate 5e-3, minibatch size 10, 1000 epochs pretraining
decoding_feature_extraction_dictionary rows are fully normalized