Abs

Abs  // Elementwise absolute value operation

Description

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

Inputs

Name Element Type Shape
arg Any Any

Outputs

Name Element Type Shape
output Same as arg Same as arg

Mathematical Definition

\[\mathtt{output}_{i_0, \ldots, i_{n-1}} = \left|\mathtt{arg}_{i_0, \ldots, i_{n-1}}\right|\]

Backprop

\[\overline{\mathtt{arg}} \leftarrow \Delta\ \mathrm{sgn}(\mathtt{arg})\]

C++ Interface

class Abs : public ngraph::op::util::UnaryElementwiseArithmetic

Elementwise absolute value operation.

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.

Abs()

Constructs an absolute value operation.

Abs(const Output<Node> &arg)

Constructs an absolute value operation.

Output [d1, ...]

Parameters
  • arg: Output that produces the input tensor.[d1, ...]