Artificial neural network

An artificial neural network (ANN) is a neural network that uses three layers of neurons to perform classification/regression.

Structure

All ANN's consist of three layers of neurons: the input layer, the hidden layer, and the output layer. The number of neurons in each layer determines the complexity of the model, with a larger layer indicating a more complicated model.

As with other neural networks, each neuron takes in information from neurons of the previous layer (and for the case of the input layer, the input). An ANN is considered dense if each neuron takes input from every neuron of the previous layer.