Python Deep Learning - Second Edition

An introduction to neurons

A neuron is a mathematical function that takes one or more input values, and outputs a single numerical value:

In this diagram, we can see the different elements of the neuron

The neuron is defined as follows:

1. First, we compute the weighted sum of the inputs x_i and the weights w_i (also known as an activation value). Here, x_i is either numerical values that represent the input data, or the outputs of other neurons ...