From 481b57a96a9ef29b112caec1bb3e17ffb043ceae Mon Sep 17 00:00:00 2001
From: Joseph Redmon <pjreddie@gmail.com>
Date: Sun, 25 Sep 2016 06:12:54 +0000
Subject: [PATCH] So I have this new programming paradigm.......
---
src/softmax_layer.c | 18 ++++++++++++------
1 files changed, 12 insertions(+), 6 deletions(-)
diff --git a/src/softmax_layer.c b/src/softmax_layer.c
index ea22d05..20bc07f 100644
--- a/src/softmax_layer.c
+++ b/src/softmax_layer.c
@@ -19,14 +19,20 @@
l.outputs = inputs;
l.output = calloc(inputs*batch, sizeof(float));
l.delta = calloc(inputs*batch, sizeof(float));
+
+ l.forward = forward_softmax_layer;
+ l.backward = backward_softmax_layer;
#ifdef GPU
+ l.forward_gpu = forward_softmax_layer_gpu;
+ l.backward_gpu = backward_softmax_layer_gpu;
+
l.output_gpu = cuda_make_array(l.output, inputs*batch);
l.delta_gpu = cuda_make_array(l.delta, inputs*batch);
#endif
return l;
}
-void softmax_array(float *input, int n, float *output)
+void softmax_array(float *input, int n, float temp, float *output)
{
int i;
float sum = 0;
@@ -35,12 +41,12 @@
if(input[i] > largest) largest = input[i];
}
for(i = 0; i < n; ++i){
- sum += exp(input[i]-largest);
+ sum += exp(input[i]/temp-largest/temp);
}
- if(sum) sum = largest+log(sum);
+ if(sum) sum = largest/temp+log(sum);
else sum = largest-100;
for(i = 0; i < n; ++i){
- output[i] = exp(input[i]-sum);
+ output[i] = exp(input[i]/temp-sum);
}
}
@@ -50,7 +56,7 @@
int inputs = l.inputs / l.groups;
int batch = l.batch * l.groups;
for(b = 0; b < batch; ++b){
- softmax_array(state.input+b*inputs, inputs, l.output+b*inputs);
+ softmax_array(state.input+b*inputs, inputs, l.temperature, l.output+b*inputs);
}
}
@@ -58,7 +64,7 @@
{
int i;
for(i = 0; i < l.inputs*l.batch; ++i){
- state.delta[i] = l.delta[i];
+ state.delta[i] += l.delta[i];
}
}
--
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