What is meant by Neural Networks?

Neural Network is a key idea in Artificial Intelligence (AI) and machine learning. It is a computer model inspired by how the human brain works with its biological neural networks. This layered network enables machines empowered with neural networks to recognise patterns, categorise inputs, predict outcomes, etc. Neural networks can also be referred to as a type of machine learning process that uses interconnected nodes or neurons in a layered structure resembling the human brain. At the core, a neural network comprises of artificial neurons or nodes which accept user input, process it and produce a meaningful output using an activation function.