Keras实现经典的卷积神经网络用于cifar10图像分类:NIN,VGG,ResNet,DenseNet,SeNet
代码片段和文件信息
属性 大小 日期 时间 名称
----------- --------- ---------- ----- ----
目录 0 2017-12-20 02:00 cifar-10-cnn-master
目录 0 2017-12-20 02:00 cifar-10-cnn-master1_Lecun_Network
文件 2839 2017-12-20 02:00 cifar-10-cnn-master1_Lecun_NetworkLeNet_dp_da_keras.py
文件 3081 2017-12-20 02:00 cifar-10-cnn-master1_Lecun_NetworkLeNet_dp_da_wd_keras.py
文件 2380 2017-12-20 02:00 cifar-10-cnn-master1_Lecun_NetworkLeNet_dp_keras.py
文件 2119 2017-12-20 02:00 cifar-10-cnn-master1_Lecun_NetworkLeNet_keras.py
目录 0 2017-12-20 02:00 cifar-10-cnn-master2_Network_in_Network
文件 4654 2017-12-20 02:00 cifar-10-cnn-master2_Network_in_NetworkNetwork_in_Network_bn_keras.py
文件 4285 2017-12-20 02:00 cifar-10-cnn-master2_Network_in_NetworkNetwork_in_Network_keras.py
目录 0 2017-12-20 02:00 cifar-10-cnn-master2_Network_in_Network
in
文件 422438 2017-12-20 02:00 cifar-10-cnn-master2_Network_in_Network
inevents.out.tfevents.1501857002.dlsummer-BM1AF-BP1AF-BM6AF
目录 0 2017-12-20 02:00 cifar-10-cnn-master2_Network_in_Network
in_bn
文件 1776892 2017-12-20 02:00 cifar-10-cnn-master2_Network_in_Network
in_bnevents.out.tfevents.1501979688.bg-CGI
目录 0 2017-12-20 02:00 cifar-10-cnn-master3_Vgg19_Network
文件 7645 2017-12-20 02:00 cifar-10-cnn-master3_Vgg19_NetworkVgg19_keras.py
文件 1582 2017-12-20 02:00 cifar-10-cnn-master3_Vgg19_NetworkVgg_prediction.py
目录 0 2017-12-20 02:00 cifar-10-cnn-master3_Vgg19_Network est_pic
文件 82410 2017-12-20 02:00 cifar-10-cnn-master3_Vgg19_Network est_piccat.jpg
文件 8892 2017-12-20 02:00 cifar-10-cnn-master3_Vgg19_Network est_picpuzzle.jpeg
文件 12270 2017-12-20 02:00 cifar-10-cnn-master3_Vgg19_Network est_pic iger.jpeg
目录 0 2017-12-20 02:00 cifar-10-cnn-master4_Residual_Network
文件 5255 2017-12-20 02:00 cifar-10-cnn-master4_Residual_NetworkResNet_keras.py
目录 0 2017-12-20 02:00 cifar-10-cnn-master5_Wide_Residual_Network
文件 5003 2017-12-20 02:00 cifar-10-cnn-master5_Wide_Residual_NetworkWide_ResNet_keras.py
目录 0 2017-12-20 02:00 cifar-10-cnn-master6_ResNeXt
文件 5421 2017-12-20 02:00 cifar-10-cnn-master6_ResNeXtResNeXt_keras.py
目录 0 2017-12-20 02:00 cifar-10-cnn-master7_DenseNet
文件 5248 2017-12-20 02:00 cifar-10-cnn-master7_DenseNetDenseNet_keras.py
目录 0 2017-12-20 02:00 cifar-10-cnn-master8_SENet
文件 6442 2017-12-20 02:00 cifar-10-cnn-master8_SENetSENet_Keras.py
目录 0 2017-12-20 02:00 cifar-10-cnn-master9_Multi-GPU
............此处省略21个文件信息
import keras
import numpy as np
from keras import optimizers
from keras.datasets import cifar10
from keras.models import Sequential
from keras.layers import Conv2D Dense Flatten MaxPooling2D
from keras.callbacks import LearningRateScheduler TensorBoard
from keras.preprocessing.image import ImageDataGenerator
batch_size = 128
epochs = 200
iterations = 391
num_classes = 10
log_filepath = ‘./lenet_dp_da‘
mean = [125.307 122.95 113.865]
std = [62.9932 62.0887 66.7048]
def build_model():
model = Sequential()
model.add(Conv2D(6 (5 5) padding=‘valid‘ activation = ‘relu‘ kernel_initializer=‘he_normal‘ input_shape=(32323)))
model.add(MaxPooling2D((2 2) strides=(2 2)))
model.add(Conv2D(16 (5 5) padding=‘valid‘ activation = ‘relu‘ kernel_initializer=‘he_normal‘))
model.add(MaxPooling2D((2 2) strides=(2 2)))
model.add(Flatten())
model.add(Dense(120 activation = ‘relu‘ kernel_initializer=‘he_normal‘))
model.add(Dense(84 activation = ‘relu‘ kernel_initializer=‘he_normal‘))
model.add(Dense(10 activation = ‘softmax‘ kernel_initializer=‘he_normal‘))
sgd = optimizers.SGD(lr=.1 momentum=0.9 nesterov=True)
model.compile(loss=‘categorical_crossentropy‘ optimizer=sgd metrics=[‘accuracy‘])
return model
def scheduler(epoch):
if epoch <= 60:
return 0.05
if epoch <= 120:
return 0.01
if epoch <= 160:
return 0.002
return 0.0004
if __name__ == ‘__main__‘:
# load data
(x_train y_train) (x_test y_test) = cifar10.load_data()
y_train = keras.utils.to_categorical(y_train num_classes)
y_test = keras.utils.to_categorical(y_test num_classes)
x_train = x_train.astype(‘float32‘)
x_test = x_test.astype(‘float32‘)
# data preprocessing [raw - mean / std]
for i in range(3):
x_train[:::i] = (x_train[:::i] - mean[i]) / std[i]
x_test[:::i] = (x_test[:::i] - mean[i]) / std[i]
# build network
model = build_model()
print(model.summary())
# set callback
tb_cb = TensorBoard(log_dir=log_filepath histogram_freq=0)
change_lr = LearningRateScheduler(scheduler)
cbks = [change_lrtb_cb]
# using real-time data augmentation
print(‘Using real-time data augmentation.‘)
datagen = ImageDataGenerator(horizontal_flip=True
width_shift_range=0.125height_shift_range=0.125fill_mode=‘constant‘cval=0.)
datagen.fit(x_train)
# start traing
model.fit_generator(datagen.flow(x_train y_trainbatch_size=batch_size)
steps_per_epoch=iterations
epochs=epochs
callbacks=cbks
validation_data=(x_test y_test))
# save model
model.save(‘lenet.h5‘)
属性 大小 日期 时间 名称
----------- --------- ---------- ----- ----
目录 0 2017-12-20 02:00 cifar-10-cnn-master
目录 0 2017-12-20 02:00 cifar-10-cnn-master1_Lecun_Network
文件 2839 2017-12-20 02:00 cifar-10-cnn-master1_Lecun_NetworkLeNet_dp_da_keras.py
文件 3081 2017-12-20 02:00 cifar-10-cnn-master1_Lecun_NetworkLeNet_dp_da_wd_keras.py
文件 2380 2017-12-20 02:00 cifar-10-cnn-master1_Lecun_NetworkLeNet_dp_keras.py
文件 2119 2017-12-20 02:00 cifar-10-cnn-master1_Lecun_NetworkLeNet_keras.py
目录 0 2017-12-20 02:00 cifar-10-cnn-master2_Network_in_Network
文件 4654 2017-12-20 02:00 cifar-10-cnn-master2_Network_in_NetworkNetwork_in_Network_bn_keras.py
文件 4285 2017-12-20 02:00 cifar-10-cnn-master2_Network_in_NetworkNetwork_in_Network_keras.py
目录 0 2017-12-20 02:00 cifar-10-cnn-master2_Network_in_Network
in
文件 422438 2017-12-20 02:00 cifar-10-cnn-master2_Network_in_Network
inevents.out.tfevents.1501857002.dlsummer-BM1AF-BP1AF-BM6AF
目录 0 2017-12-20 02:00 cifar-10-cnn-master2_Network_in_Network
in_bn
文件 1776892 2017-12-20 02:00 cifar-10-cnn-master2_Network_in_Network
in_bnevents.out.tfevents.1501979688.bg-CGI
目录 0 2017-12-20 02:00 cifar-10-cnn-master3_Vgg19_Network
文件 7645 2017-12-20 02:00 cifar-10-cnn-master3_Vgg19_NetworkVgg19_keras.py
文件 1582 2017-12-20 02:00 cifar-10-cnn-master3_Vgg19_NetworkVgg_prediction.py
目录 0 2017-12-20 02:00 cifar-10-cnn-master3_Vgg19_Network est_pic
文件 82410 2017-12-20 02:00 cifar-10-cnn-master3_Vgg19_Network est_piccat.jpg
文件 8892 2017-12-20 02:00 cifar-10-cnn-master3_Vgg19_Network est_picpuzzle.jpeg
文件 12270 2017-12-20 02:00 cifar-10-cnn-master3_Vgg19_Network est_pic iger.jpeg
目录 0 2017-12-20 02:00 cifar-10-cnn-master4_Residual_Network
文件 5255 2017-12-20 02:00 cifar-10-cnn-master4_Residual_NetworkResNet_keras.py
目录 0 2017-12-20 02:00 cifar-10-cnn-master5_Wide_Residual_Network
文件 5003 2017-12-20 02:00 cifar-10-cnn-master5_Wide_Residual_NetworkWide_ResNet_keras.py
目录 0 2017-12-20 02:00 cifar-10-cnn-master6_ResNeXt
文件 5421 2017-12-20 02:00 cifar-10-cnn-master6_ResNeXtResNeXt_keras.py
目录 0 2017-12-20 02:00 cifar-10-cnn-master7_DenseNet
文件 5248 2017-12-20 02:00 cifar-10-cnn-master7_DenseNetDenseNet_keras.py
目录 0 2017-12-20 02:00 cifar-10-cnn-master8_SENet
文件 6442 2017-12-20 02:00 cifar-10-cnn-master8_SENetSENet_Keras.py
目录 0 2017-12-20 02:00 cifar-10-cnn-master9_Multi-GPU
............此处省略21个文件信息
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