McCulloch-Pitts definition

<artificial intelligence> The basic building block of artificial neural networks. It receives one or more inputs and produces one or more identical outputs, each of which is a simple nonlinear function of the sum of the inputs to the neurone. The nonlinear function is typically a threshhold or step function which is usually smoothed (i.e. a sigmoid) to facilitate learning.

American spelling: McCulloch-Pitts neuron

(01 Mar 1997)