vmlselu - SELU activation

Math Vector Library Machine Learning Extension
Programming Reference Manual Fortran
Version 1.0 DD-00004-110

4.23 vmlselu - SELU activation

subroutine vmlselu (n, y, incy, l, a, x, incx);
subroutine vmlseluf(n, y, incy, l, a, x, incx);

Given an input vector $x$ , a result vector $y$ and constants $λ$ and $α$ this function computes the SELU activation function of the values in the $x$ vector and stores the result in the $y$ vector.

{α(ex-1) wherex <0 y .= λ x wherex ≥0

4.23.1 Parameters

N - INTEGER: ENTRY: Number of elements of $x$ and $y$ .
CONSTRAINT: $n ≥1$ .
Y - ARRAY OF REAL: EXIT: Result vector $y$ .
CONSTRAINT: Must contain $n× incy$ elements.
CONSTRAINT: Must not overlap with array $x$ .
INCY - INTEGER: ENTRY: Stride for the vector $y$ .
CONSTRAINT: $incy> 0$ .
L - REAL: ENTRY: Constant $λ$ .
A - REAL: ENTRY: Constant $α$ .
X - ARRAY OF REAL: ENTRY: Input vector $x$ .
CONSTRAINT: Must contain $n× incx$ elements.
CONSTRAINT: Must not overlap with array $y$ .
INCX - INTEGER: ENTRY: Stride for the vector $x$ .
CONSTRAINT: $incx> 0$ .

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