From 729ce43e6ec45cfdb58e06e227428a0f81c5de0f Mon Sep 17 00:00:00 2001
From: Joseph Redmon <pjreddie@gmail.com>
Date: Fri, 10 Jun 2016 00:20:31 +0000
Subject: [PATCH] stuff
---
src/activations.h | 13 ++++++++++++-
1 files changed, 12 insertions(+), 1 deletions(-)
diff --git a/src/activations.h b/src/activations.h
index 05f7bca..fed2908 100644
--- a/src/activations.h
+++ b/src/activations.h
@@ -4,7 +4,7 @@
#include "math.h"
typedef enum{
- LOGISTIC, RELU, RELIE, LINEAR, RAMP, TANH, PLSE, LEAKY, ELU, LOGGY, STAIR
+ LOGISTIC, RELU, RELIE, LINEAR, RAMP, TANH, PLSE, LEAKY, ELU, LOGGY, STAIR, HARDTAN
}ACTIVATION;
ACTIVATION get_activation(char *s);
@@ -25,6 +25,12 @@
if (n%2 == 0) return floor(x/2.);
else return (x - n) + floor(x/2.);
}
+static inline float hardtan_activate(float x)
+{
+ if (x < -1) return -1;
+ if (x > 1) return 1;
+ return x;
+}
static inline float linear_activate(float x){return x;}
static inline float logistic_activate(float x){return 1./(1. + exp(-x));}
static inline float loggy_activate(float x){return 2./(1. + exp(-x)) - 1;}
@@ -41,6 +47,11 @@
return .125*x + .5;
}
+static inline float hardtan_gradient(float x)
+{
+ if (x > -1 && x < 1) return 1;
+ return 0;
+}
static inline float linear_gradient(float x){return 1;}
static inline float logistic_gradient(float x){return (1-x)*x;}
static inline float loggy_gradient(float x)
--
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