rectified units

from: http://en.wikipedia.org/wiki/Rectifier_(neural_networks)

In the context of artificial neural networks, the rectifier is an activation function defined as

Noisy ReLUs[edit]

Rectified linear units can be extended to include Gaussian noise, making them noisy ReLUs, giving^[3]

Noisy ReLUs have been used with some success in restricted Boltzmann machines for computer vision tasks.^[3]