chainer.functions.clipped_relu¶

chainer.functions.clipped_relu(x, z=20.0)[source]¶

Clipped Rectifier Unit function.

For a clipping value $z(>0)$ , it computes

$\text{ClippedReLU}(x, z) = \min(\max(0, x), z).$

Parameters

x (Variable or N-dimensional array) – Input variable. A $(s_1, s_2, ..., s_n)$ -shaped float array.
z (float) – Clipping value. (default = 20.0)

Returns

Output variable. A $(s_1, s_2, ..., s_n)$ -shaped float array.

Return type

Variable

Example

>>> x = np.random.uniform(-100, 100, (10, 20)).astype(np.float32)
>>> z = 10.0
>>> np.any(x < 0)
True
>>> np.any(x > z)
True
>>> y = F.clipped_relu(x, z=z)
>>> np.any(y.array < 0)
False
>>> np.any(y.array > z)
False