In the previous chapter, I posited a scenario where you are a postal worker trying to recognize handwriting. In that, we ended up with a neural network built on top of Gorgonia. In this chapter, we'll look at the same scenario, but we'll augment our ideas of what a neural network is and write a more advanced neural network, one that was, until very recently, state of the art.

Specifically, in this chapter, we are going to build a Convolutional Neural Network (CNN). A CNN is a type of deep learning network that has been popular in recent years.