Introduction to Keras: Build a Neural Network to Classify Digits!

Before we jump into coding, let's understand the problem we are trying to solve. As humans, it is very easy for us to read and recognize a bunch of handwritten digits. Since this recognition is done unconsciously, we don't realize how difficult this problem actually is. Now imagine teaching a computer how to recognize these digits and writing out a set of rules (otherwise known as an algorithm) to tell the computer how to distinguish each digit from another. This proves to be quite a difficult task! Neural networks approach the problem of digit recognition very differently.