mindspore.ops.hardswish

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mindspore.ops.hardswish(input)[source]

Hard Swish activation function. The input is a Tensor with any valid shape.

Hard swish is defined as:

\[\begin{split}\text{Hardswish}(input) = \begin{cases} 0, & \text{ if } input \leq -3, \\ input, & \text{ if } input \geq +3, \\ input*(input + 3)/6, & \text{ otherwise } \end{cases}\end{split}\]

HSwish Activation Function Graph:

../../_images/HSwish.png
Parameters

input (Tensor) – The input Tensor.

Returns

Tensor, with the same type and shape as the input.

Raises

  • TypeError – If input is not a Tensor.

  • TypeError – If input is neither int nor float.

Supported Platforms:

Ascend GPU CPU

Examples

>>> import mindspore
>>> import numpy as np
>>> from mindspore import Tensor, ops
>>> input = Tensor(np.array([-1, -2, 0, 2, 1]), mindspore.float16)
>>> output = ops.hardswish(input)
>>> print(output)
[-0.3333  -0.3333  0  1.667  0.6665]