Neural network with error backpropagation - C implementation

A piece of code that creates a NN, trains it and tests it in a set of examples by Zalando Research as found on kaggle.com

Accuracy

The accuracy with 60,000 images on 10,000 test images is 53%, rising to 76% when trained multiple (10) times on the same set.

Compile

gcc nn_bp.c -o nn_bp -lm -O3

Todo:

• Make the number of hidden layers flexible
• Include multiple activation functions to choose from