From 0305fb4d99cf1efc7d4aa4d2ee2d65d54500d437 Mon Sep 17 00:00:00 2001
From: Joseph Redmon <pjreddie@gmail.com>
Date: Thu, 26 Nov 2015 19:48:01 +0000
Subject: [PATCH] Some changes

---
 src/parser.c |  157 +++++++++++++++++++++++++++++++++++-----------------
 1 files changed, 105 insertions(+), 52 deletions(-)

diff --git a/src/parser.c b/src/parser.c
index b9f6cb6..277c6e2 100644
--- a/src/parser.c
+++ b/src/parser.c
@@ -14,8 +14,8 @@
 #include "softmax_layer.h"
 #include "dropout_layer.h"
 #include "detection_layer.h"
-#include "region_layer.h"
 #include "avgpool_layer.h"
+#include "local_layer.h"
 #include "route_layer.h"
 #include "list.h"
 #include "option_list.h"
@@ -28,6 +28,7 @@
 
 int is_network(section *s);
 int is_convolutional(section *s);
+int is_local(section *s);
 int is_deconvolutional(section *s);
 int is_connected(section *s);
 int is_maxpool(section *s);
@@ -38,7 +39,6 @@
 int is_crop(section *s);
 int is_cost(section *s);
 int is_detection(section *s);
-int is_region(section *s);
 int is_route(section *s);
 list *read_cfg(char *filename);
 
@@ -109,6 +109,27 @@
     return layer;
 }
 
+local_layer parse_local(list *options, size_params params)
+{
+    int n = option_find_int(options, "filters",1);
+    int size = option_find_int(options, "size",1);
+    int stride = option_find_int(options, "stride",1);
+    int pad = option_find_int(options, "pad",0);
+    char *activation_s = option_find_str(options, "activation", "logistic");
+    ACTIVATION activation = get_activation(activation_s);
+
+    int batch,h,w,c;
+    h = params.h;
+    w = params.w;
+    c = params.c;
+    batch=params.batch;
+    if(!(h && w && c)) error("Layer before local layer must output image.");
+
+    local_layer layer = make_local_layer(batch,h,w,c,n,size,stride,pad,activation);
+
+    return layer;
+}
+
 convolutional_layer parse_convolutional(list *options, size_params params)
 {
     int n = option_find_int(options, "filters",1);
@@ -124,8 +145,9 @@
     c = params.c;
     batch=params.batch;
     if(!(h && w && c)) error("Layer before convolutional layer must output image.");
+    int batch_normalize = option_find_int_quiet(options, "batch_normalize", 0);
 
-    convolutional_layer layer = make_convolutional_layer(batch,h,w,c,n,size,stride,pad,activation);
+    convolutional_layer layer = make_convolutional_layer(batch,h,w,c,n,size,stride,pad,activation, batch_normalize);
 
     char *weights = option_find_str(options, "weights", 0);
     char *biases = option_find_str(options, "biases", 0);
@@ -167,21 +189,19 @@
     int coords = option_find_int(options, "coords", 1);
     int classes = option_find_int(options, "classes", 1);
     int rescore = option_find_int(options, "rescore", 0);
-    int joint = option_find_int(options, "joint", 0);
-    int objectness = option_find_int(options, "objectness", 0);
-    int background = 0;
-    detection_layer layer = make_detection_layer(params.batch, params.inputs, classes, coords, joint, rescore, background, objectness);
-    return layer;
-}
-
-region_layer parse_region(list *options, size_params params)
-{
-    int coords = option_find_int(options, "coords", 1);
-    int classes = option_find_int(options, "classes", 1);
-    int rescore = option_find_int(options, "rescore", 0);
     int num = option_find_int(options, "num", 1);
     int side = option_find_int(options, "side", 7);
-    region_layer layer = make_region_layer(params.batch, params.inputs, num, side, classes, coords, rescore);
+    detection_layer layer = make_detection_layer(params.batch, params.inputs, num, side, classes, coords, rescore);
+
+    layer.softmax = option_find_int(options, "softmax", 0);
+    layer.sqrt = option_find_int(options, "sqrt", 0);
+
+    layer.coord_scale = option_find_float(options, "coord_scale", 1);
+    layer.forced = option_find_int(options, "forced", 0);
+    layer.object_scale = option_find_float(options, "object_scale", 1);
+    layer.noobject_scale = option_find_float(options, "noobject_scale", 1);
+    layer.class_scale = option_find_float(options, "class_scale", 1);
+    layer.jitter = option_find_float(options, "jitter", .2);
     return layer;
 }
 
@@ -213,6 +233,7 @@
     int noadjust = option_find_int_quiet(options, "noadjust",0);
 
     crop_layer l = make_crop_layer(batch,h,w,c,crop_height,crop_width,flip, angle, saturation, exposure);
+    l.shift = option_find_float(options, "shift", 0);
     l.noadjust = noadjust;
     return l;
 }
@@ -312,6 +333,8 @@
     if (strcmp(s, "constant")==0) return CONSTANT;
     if (strcmp(s, "step")==0) return STEP;
     if (strcmp(s, "exp")==0) return EXP;
+    if (strcmp(s, "sigmoid")==0) return SIG;
+    if (strcmp(s, "steps")==0) return STEPS;
     fprintf(stderr, "Couldn't find policy %s, going with constant\n", s);
     return CONSTANT;
 }
@@ -337,9 +360,36 @@
     net->policy = get_policy(policy_s);
     if(net->policy == STEP){
         net->step = option_find_int(options, "step", 1);
-        net->gamma = option_find_float(options, "gamma", 1);
+        net->scale = option_find_float(options, "scale", 1);
+    } else if (net->policy == STEPS){
+        char *l = option_find(options, "steps");   
+        char *p = option_find(options, "scales");   
+        if(!l || !p) error("STEPS policy must have steps and scales in cfg file");
+
+        int len = strlen(l);
+        int n = 1;
+        int i;
+        for(i = 0; i < len; ++i){
+            if (l[i] == ',') ++n;
+        }
+        int *steps = calloc(n, sizeof(int));
+        float *scales = calloc(n, sizeof(float));
+        for(i = 0; i < n; ++i){
+            int step    = atoi(l);
+            float scale = atof(p);
+            l = strchr(l, ',')+1;
+            p = strchr(p, ',')+1;
+            steps[i] = step;
+            scales[i] = scale;
+        }
+        net->scales = scales;
+        net->steps = steps;
+        net->num_steps = n;
     } else if (net->policy == EXP){
         net->gamma = option_find_float(options, "gamma", 1);
+    } else if (net->policy == SIG){
+        net->gamma = option_find_float(options, "gamma", 1);
+        net->step = option_find_int(options, "step", 1);
     } else if (net->policy == POLY){
         net->power = option_find_float(options, "power", 1);
     }
@@ -375,6 +425,8 @@
         layer l = {0};
         if(is_convolutional(s)){
             l = parse_convolutional(options, params);
+        }else if(is_local(s)){
+            l = parse_local(options, params);
         }else if(is_deconvolutional(s)){
             l = parse_deconvolutional(options, params);
         }else if(is_connected(s)){
@@ -385,8 +437,6 @@
             l = parse_cost(options, params);
         }else if(is_detection(s)){
             l = parse_detection(options, params);
-        }else if(is_region(s)){
-            l = parse_region(options, params);
         }else if(is_softmax(s)){
             l = parse_softmax(options, params);
         }else if(is_normalization(s)){
@@ -401,14 +451,15 @@
             l = parse_dropout(options, params);
             l.output = net.layers[count-1].output;
             l.delta = net.layers[count-1].delta;
-            #ifdef GPU
+#ifdef GPU
             l.output_gpu = net.layers[count-1].output_gpu;
             l.delta_gpu = net.layers[count-1].delta_gpu;
-            #endif
+#endif
         }else{
             fprintf(stderr, "Type not recognized: %s\n", s->type);
         }
         l.dontload = option_find_int_quiet(options, "dontload", 0);
+        l.dontloadscales = option_find_int_quiet(options, "dontloadscales", 0);
         option_unused(options);
         net.layers[count] = l;
         free_section(s);
@@ -439,9 +490,9 @@
 {
     return (strcmp(s->type, "[detection]")==0);
 }
-int is_region(section *s)
+int is_local(section *s)
 {
-    return (strcmp(s->type, "[region]")==0);
+    return (strcmp(s->type, "[local]")==0);
 }
 int is_deconvolutional(section *s)
 {
@@ -494,24 +545,6 @@
     return (strcmp(s->type, "[route]")==0);
 }
 
-int read_option(char *s, list *options)
-{
-    size_t i;
-    size_t len = strlen(s);
-    char *val = 0;
-    for(i = 0; i < len; ++i){
-        if(s[i] == '='){
-            s[i] = '\0';
-            val = s+i+1;
-            break;
-        }
-    }
-    if(i == len-1) return 0;
-    char *key = s;
-    option_insert(options, key, val);
-    return 1;
-}
-
 list *read_cfg(char *filename)
 {
     FILE *file = fopen(filename, "r");
@@ -608,19 +641,13 @@
 #endif
             int num = l.n*l.c*l.size*l.size;
             fwrite(l.biases, sizeof(float), l.n, fp);
-            fwrite(l.filters, sizeof(float), num, fp);
-        }
-        if(l.type == DECONVOLUTIONAL){
-#ifdef GPU
-            if(gpu_index >= 0){
-                pull_deconvolutional_layer(l);
+            if (l.batch_normalize){
+                fwrite(l.scales, sizeof(float), l.n, fp);
+                fwrite(l.rolling_mean, sizeof(float), l.n, fp);
+                fwrite(l.rolling_variance, sizeof(float), l.n, fp);
             }
-#endif
-            int num = l.n*l.c*l.size*l.size;
-            fwrite(l.biases, sizeof(float), l.n, fp);
             fwrite(l.filters, sizeof(float), num, fp);
-        }
-        if(l.type == CONNECTED){
+        } if(l.type == CONNECTED){
 #ifdef GPU
             if(gpu_index >= 0){
                 pull_connected_layer(l);
@@ -628,6 +655,16 @@
 #endif
             fwrite(l.biases, sizeof(float), l.outputs, fp);
             fwrite(l.weights, sizeof(float), l.outputs*l.inputs, fp);
+        } if(l.type == LOCAL){
+#ifdef GPU
+            if(gpu_index >= 0){
+                pull_local_layer(l);
+            }
+#endif
+            int locations = l.out_w*l.out_h;
+            int size = l.size*l.size*l.c*l.n*locations;
+            fwrite(l.biases, sizeof(float), l.outputs, fp);
+            fwrite(l.filters, sizeof(float), size, fp);
         }
     }
     fclose(fp);
@@ -657,6 +694,11 @@
         if(l.type == CONVOLUTIONAL){
             int num = l.n*l.c*l.size*l.size;
             fread(l.biases, sizeof(float), l.n, fp);
+            if (l.batch_normalize && (!l.dontloadscales)){
+                fread(l.scales, sizeof(float), l.n, fp);
+                fread(l.rolling_mean, sizeof(float), l.n, fp);
+                fread(l.rolling_variance, sizeof(float), l.n, fp);
+            }
             fread(l.filters, sizeof(float), num, fp);
 #ifdef GPU
             if(gpu_index >= 0){
@@ -683,6 +725,17 @@
             }
 #endif
         }
+        if(l.type == LOCAL){
+            int locations = l.out_w*l.out_h;
+            int size = l.size*l.size*l.c*l.n*locations;
+            fread(l.biases, sizeof(float), l.outputs, fp);
+            fread(l.filters, sizeof(float), size, fp);
+#ifdef GPU
+            if(gpu_index >= 0){
+                push_local_layer(l);
+            }
+#endif
+        }
     }
     fprintf(stderr, "Done!\n");
     fclose(fp);

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