Hands-On Machine Learning with C++

Neurons

The biological neuron consists of a body and processes that connect it to the outside world. The processes along which a neuron receives excitation are called dendrites. The process through which a neuron transmits excitation is called an axon. Each neuron has only one axon. Dendrites and axons have a rather complex branching structure. The junction of the axon and a dendrite is called a synapse. The main functionality of a neuron is to transfer excitation from dendrites to an axon. But signals that come from different dendrites can affect the signal in the axon. A neuron gives off a signal if the total excitation exceeds a certain limit value, which varies within certain limits. If the signal is not sent to the axon, the neuron does ...