From fc9b867dd9c9a6d38d7fe478217060e11b9e7e1b Mon Sep 17 00:00:00 2001
From: Joseph Redmon <pjreddie@gmail.com>
Date: Wed, 16 Nov 2016 08:15:46 +0000
Subject: [PATCH] :fire: :fire: :dragonite:
---
src/blas.c | 21 ++++++++++++++++++++-
1 files changed, 20 insertions(+), 1 deletions(-)
diff --git a/src/blas.c b/src/blas.c
index 9d42562..c6d59ea 100644
--- a/src/blas.c
+++ b/src/blas.c
@@ -1,11 +1,12 @@
#include "blas.h"
#include "math.h"
#include <assert.h>
+#include <float.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
-void reorg(float *x, int size, int layers, int batch, int forward)
+void flatten(float *x, int size, int layers, int batch, int forward)
{
float *swap = calloc(size*layers*batch, sizeof(float));
int i,c,b;
@@ -179,3 +180,21 @@
return dot;
}
+void softmax(float *input, int n, float temp, float *output)
+{
+ int i;
+ float sum = 0;
+ float largest = -FLT_MAX;
+ for(i = 0; i < n; ++i){
+ if(input[i] > largest) largest = input[i];
+ }
+ for(i = 0; i < n; ++i){
+ float e = exp(input[i]/temp - largest/temp);
+ sum += e;
+ output[i] = e;
+ }
+ for(i = 0; i < n; ++i){
+ output[i] /= sum;
+ }
+}
+
--
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