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 NodeTypeInfo &get_type_info() const

Returns the NodeTypeInfo for the node’s class. During transition to type_info, returns a dummy type_info for Node if the class has not been updated yet.