Math Vector Library Machine Learning Extension
Programming Reference Manual C/C++
Version 1.0 DD-00004-010

4.23 vmlselu - SELU activation

#include <mvecml.h>

void vmlselu (int n, double *y, int incy, double l, double a, const double *x, int incx);
void vmlseluf(int n, float *y, int incy, float l, float a, const float *x, int 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  .