Artificial Neural Network:

Deep learning is a subfield of machine learning concerned with algorithm inspired by the structure and function of the brain called "Artificial Neural Network". In a nutshell, below is the function of a neuron. Axon: is a stem for processing output. Perceptron's work in a similar way like Neuron, it takes input and perform transformations and produces the results. Inside the perceptron, we typically calculate the step function.