softshrink¶

paddle.fluid.layers. softshrink ( x, alpha=None ) [源代码] ¶

Softshrink激活函数

\[\begin{split}out = \begin{cases} x - \alpha, \text{if } x > \alpha \\ x + \alpha, \text{if } x < -\alpha \\ 0, \text{otherwise} \end{cases}\end{split}\]

参数¶

x (Variable0 - 张量（Tensor）

alpha (float) - 上面公式中alpha的值

返回¶

张量(Tensor)

返回类型¶

变量(Variable)

代码示例¶

          import paddle.fluid as fluid
data = fluid.data(name="input", shape=[None, 784])
result = fluid.layers.softshrink(x=data, alpha=0.3)

         