Understanding Neural Networks: From Activation Function To Back Propagation

This article aims to provide an overview of neural networks. It outlines fundamental concepts of following key areas:

• What Are Neural Networks?
• What Are The Main Components Of Neural Networks?
• How Do Neural Networks Work?
• What Is An Activation Function?
• What Is Back Propagation?
• What Are The Different Types Of Neural Networks?

If you want to know how machine learning works in general then please read “Machine Learning In 8 Minutes” article.

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What Are Neural Networks?

Artificial Neural Networks (ANN) concept has been inspired by biological neural network.

First and foremost, neural network is a concept. It is not a machine or a physical box.

In a biologic neural network, multiple neurons work together, receive input signals, process information and fire an…