Statistics for Data Science

Defining neural network

Our approach is to always start with a solid definition. So--what exactly is an artificial neural network? Perhaps:

A computer system modeled on the human brain and nervous system.

A popular understanding or, if we check online for a definition:

In machine learning and cognitive science, artificial neural networks (ANNs) are a family of models inspired by biological neural networks (the central nervous systems of animals, in particular, the brain) and are used to estimate or approximate functions that can depend on a large number of inputs and are generally unknown.

So there are many definitions, but in summarization, the common theme through all of the definitions you'll find for an  ANNs is that it is defined as ...