Neural network

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Neural network (n.)
An artificial neural network is a computing system vaguely inspired by the biological neural networks that constitute animal brains.

It is based on collections of nodes called artificial neurons, which loosely model the neurons in a biological brain. Each connection can transmit a signal to other neurons which then processes it and can signal neurons connected to it. The “signal” at a connection is a real number, and the output of each neuron is computed by some non-linear function of the sum of its inputs. The connections are called “edges”. Neurons and edges typically have a weight that adjusts as learning proceeds.