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我就废话不多说了,大家还是直接看代码吧!
import keras from keras.datasets import cifar10 from keras.preprocessing.image import ImageDataGenerator from keras.models import Sequential from keras.layers import Dense, Dropout, Activation, Flatten from keras.layers import Conv2D, MaxPooling2D, BatchNormalization from keras import optimizers import numpy as np from keras.layers.core import Lambda from keras import backend as K from keras.optimizers import SGD from keras import regularizers #import data (x_train, y_train), (x_test, y_test) = cifar10.load_data() x_train = x_train.astype('float32') x_test = x_test.astype('float32') y_train = keras.utils.to_categorical(y_train, 10) y_test = keras.utils.to_categorical(y_test, 10) weight_decay = 0.0005 nb_epoch=100 batch_size=32 #layer1 32*32*3 model = Sequential() model.add(Conv2D(64, (3, 3), padding='same', input_shape=(32,32,3),kernel_regularizer=regularizers.l2(weight_decay))) model.add(Activation('relu')) model.add(BatchNormalization()) model.add(Dropout(0.3)) #layer2 32*32*64 model.add(Conv2D(64, (3, 3), padding='same',kernel_regularizer=regularizers.l2(weight_decay))) model.add(Activation('relu')) model.add(BatchNormalization()) model.add(MaxPooling2D(pool_size=(2, 2))) #layer3 16*16*64 model.add(Conv2D(128, (3, 3), padding='same',kernel_regularizer=regularizers.l2(weight_decay))) model.add(Activation('relu')) model.add(BatchNormalization()) model.add(Dropout(0.4)) #layer4 16*16*128 model.add(Conv2D(128, (3, 3), padding='same',kernel_regularizer=regularizers.l2(weight_decay))) model.add(Activation('relu')) model.add(BatchNormalization()) model.add(MaxPooling2D(pool_size=(2, 2))) #layer5 8*8*128 model.add(Conv2D(256, (3, 3), padding='same',kernel_regularizer=regularizers.l2(weight_decay))) model.add(Activation('relu')) model.add(BatchNormalization()) model.add(Dropout(0.4)) #layer6 8*8*256 model.add(Conv2D(256, (3, 3), padding='same',kernel_regularizer=regularizers.l2(weight_decay))) model.add(Activation('relu')) model.add(BatchNormalization()) model.add(Dropout(0.4)) #layer7 8*8*256 model.add(Conv2D(256, (3, 3), padding='same',kernel_regularizer=regularizers.l2(weight_decay))) model.add(Activation('relu')) model.add(BatchNormalization()) model.add(MaxPooling2D(pool_size=(2, 2))) #layer8 4*4*256 model.add(Conv2D(512, (3, 3), padding='same',kernel_regularizer=regularizers.l2(weight_decay))) model.add(Activation('relu')) model.add(BatchNormalization()) model.add(Dropout(0.4)) #layer9 4*4*512 model.add(Conv2D(512, (3, 3), padding='same',kernel_regularizer=regularizers.l2(weight_decay))) model.add(Activation('relu')) model.add(BatchNormalization()) model.add(Dropout(0.4)) #layer10 4*4*512 model.add(Conv2D(512, (3, 3), padding='same',kernel_regularizer=regularizers.l2(weight_decay))) model.add(Activation('relu')) model.add(BatchNormalization()) model.add(MaxPooling2D(pool_size=(2, 2))) #layer11 2*2*512 model.add(Conv2D(512, (3, 3), padding='same',kernel_regularizer=regularizers.l2(weight_decay))) model.add(Activation('relu')) model.add(BatchNormalization()) model.add(Dropout(0.4)) #layer12 2*2*512 model.add(Conv2D(512, (3, 3), padding='same',kernel_regularizer=regularizers.l2(weight_decay))) model.add(Activation('relu')) model.add(BatchNormalization()) model.add(Dropout(0.4)) #layer13 2*2*512 model.add(Conv2D(512, (3, 3), padding='same',kernel_regularizer=regularizers.l2(weight_decay))) model.add(Activation('relu')) model.add(BatchNormalization()) model.add(MaxPooling2D(pool_size=(2, 2))) model.add(Dropout(0.5)) #layer14 1*1*512 model.add(Flatten()) model.add(Dense(512,kernel_regularizer=regularizers.l2(weight_decay))) model.add(Activation('relu')) model.add(BatchNormalization()) #layer15 512 model.add(Dense(512,kernel_regularizer=regularizers.l2(weight_decay))) model.add(Activation('relu')) model.add(BatchNormalization()) #layer16 512 model.add(Dropout(0.5)) model.add(Dense(10)) model.add(Activation('softmax')) # 10 sgd = SGD(lr=0.01, decay=1e-6, momentum=0.9, nesterov=True) model.compile(loss='categorical_crossentropy', optimizer=sgd,metrics=['accuracy']) model.fit(x_train,y_train,epochs=nb_epoch, batch_size=batch_size, validation_split=0.1, verbose=1)
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