From a6b2511a566f77a0838dc1dd0d5f3e3c49a8faa0 Mon Sep 17 00:00:00 2001
From: Joseph Redmon <pjreddie@gmail.com>
Date: Sat, 25 Jun 2016 23:13:54 +0000
Subject: [PATCH] idk
---
src/activations.h | 25 ++++++++++++++++++++++++-
1 files changed, 24 insertions(+), 1 deletions(-)
diff --git a/src/activations.h b/src/activations.h
index 05f7bca..d1b8c37 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, LHTAN
}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 +47,23 @@
return .125*x + .5;
}
+static inline float lhtan_activate(float x)
+{
+ if(x < 0) return .001*x;
+ if(x > 1) return .001*(x-1) + 1;
+ return x;
+}
+static inline float lhtan_gradient(float x)
+{
+ if(x > 0 && x < 1) return 1;
+ return .001;
+}
+
+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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