torch.nn.Hardsigmoid

原型

CLASS torch.nn.Hardsigmoid(inplace=False)

参数

• inplace (bool) – 默认为 False

定义

$$\text{Hardsigmoid}(x)=\{\begin{array}{ll}0& \text{if }x\le -3,\\ 1& \text{if }x\ge +3,\\ x/6+1/2& \text{otherwise}\end{array}$$

图

代码

import torch
import torch.nn as nn

m = nn.Hardsigmoid()
input = torch.randn(2)
output = m(input)
print("input: ", input)    # input:  tensor([ 1.6288, -0.0689])
print("output: ", output)  # output:  tensor([0.7715, 0.4885])

【参考】

Hardsigmoid — PyTorch 1.13 documentation