source: src/ai/activation.c @ 1b9fe24

feature/crepe
Last change on this file since 1b9fe24 was 387a5b1, checked in by Paul Brossier <piem@piem.org>, 3 years ago

[activation] add sigmoid and relu, in-place

  • Property mode set to 100644
File size: 403 bytes
Line 
1#include "aubio_priv.h"
2#include "fmat.h"
3#include "ai/tensor.h"
4
5void aubio_activation_relu(aubio_tensor_t *t)
6{
7  uint_t i;
8  AUBIO_ASSERT(t);
9  for (i = 0; i < t->size; i++) {
10    t->buffer[i] = MAX(0, t->buffer[i]);
11  }
12}
13
14void aubio_activation_sigmoid(aubio_tensor_t *t)
15{
16  uint_t i;
17  AUBIO_ASSERT(t);
18  for (i = 0; i < t->size; i++) {
19    t->buffer[i] = 1. / (1. + EXP( - t->buffer[i] ));
20  }
21}
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