From 16d06ec0db241261d0d030722e440206ed8aad77 Mon Sep 17 00:00:00 2001
From: Joseph Redmon <pjreddie@gmail.com>
Date: Mon, 29 Feb 2016 21:54:12 +0000
Subject: [PATCH] stuff
---
src/blas.c | 23 ++++++++++++++++++++---
1 files changed, 20 insertions(+), 3 deletions(-)
diff --git a/src/blas.c b/src/blas.c
index d7948bb..978f1ed 100644
--- a/src/blas.c
+++ b/src/blas.c
@@ -115,13 +115,30 @@
for(i = 0; i < N; ++i) Y[i*INCY] = X[i*INCX];
}
-void smooth_l1_cpu(int n, float *pred, float *truth, float *delta)
+void smooth_l1_cpu(int n, float *pred, float *truth, float *delta, float *error)
{
int i;
for(i = 0; i < n; ++i){
float diff = truth[i] - pred[i];
- if(fabs(diff) > 1) delta[i] = diff;
- else delta[i] = (diff > 0) ? 1 : -1;
+ float abs_val = fabs(diff);
+ if(abs_val < 1) {
+ error[i] = diff * diff;
+ delta[i] = diff;
+ }
+ else {
+ error[i] = 2*abs_val - 1;
+ delta[i] = (diff < 0) ? -1 : 1;
+ }
+ }
+}
+
+void l2_cpu(int n, float *pred, float *truth, float *delta, float *error)
+{
+ int i;
+ for(i = 0; i < n; ++i){
+ float diff = truth[i] - pred[i];
+ error[i] = diff * diff;
+ delta[i] = diff;
}
}
--
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