Sigmoid  // Elementwise sigmoid operation


Produces a single output tensor of the same element type and shape as arg, where the value at each coordinate of output is the sigmoid of arg at the same coordinate.


Name Element Type Shape
arg Any Any


Name Element Type Shape
output Same as arg Same as arg

Mathematical Definition

\[\mathtt{output}_{i_0, \ldots, i_{n-1}} = \frac{1}{1+\exp(-\mathtt{arg}_{i_0, \ldots, i_{n-1}})}\]

C++ Interface

class Sigmoid : public ngraph::op::util::UnaryElementwiseArithmetic

Public Functions

const std::string &description() const

Get the string name for the type of the node, such as Add or Multiply. The class name, must not contain spaces as it is used for codegen.

A const reference to the node’s type name