Sign

Versioned name : Sign-1

Category : Arithmetic unary

Short description : Sign performs element-wise sign operation on a given input tensor.

Detailed description : Sign performs element-wise sign operation on a given input tensor, based on the following mathematical formula:

\[a_{i} = sign(a_{i})\]

Attributes : Sign operation has no attributes.

Inputs

  • 1 : A tensor of type T and arbitrary shape. Required.

Outputs

  • 1 : The result of element-wise Sign operation. A tensor of type T with mapped elements of the input tensor to -1 (if it is negative), 0 (if it is zero), or 1 (if it is positive).

Types

  • T : any numeric type.

Example

<layer ... type="Sign">
    <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>