Sigmoid

Versioned name: Sigmoid-1

Category: Activation function

Short description: Sigmoid element-wise activation function.

Detailed description: Reference

Attributes: Sigmoid operation has no attributes.

Mathematical Formulation

For each element from the input tensor calculates corresponding element in the output tensor with the following formula:

\[sigmoid( x ) = \frac{1}{1+e^{-x}}\]

Inputs:

• 1: Input tensor x of any floating-point type. Required.

Outputs:

• 1: Result of Sigmoid function applied to the input tensor x. Floating-point tensor with shape and type matching the input tensor.

Example

 <layer ... type="Sigmoid">
     <input>
         <port id="0">
             <dim>256</dim>
             <dim>56</dim>
         </port>
     </input>
     <output>
         <port id="1">
             <dim>256</dim>
             <dim>56</dim>
         </port>
     </output>
 </layer>