chainer.functions.zoneout

chainer.functions.zoneout(h, x, ratio=.5)

Drops elements of input variable and sets to previous variable randomly.

This function drops input elements randomly with probability ratio and instead sets dropping element to their previous variable. In testing mode , it does nothing and just returns x.

Parameters

• h (Variable or N-dimensional array) – Previous variable.

• x (Variable or N-dimensional array) – Input variable.

• ratio (float) – Zoneout ratio.

Returns

Output variable.

Return type

Variable

See the paper: Zoneout: Regularizing RNNs by Randomly Preserving Hidden Activations.