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- import tensorflow as tf
- from keras import layers
- from keras import models
- import matplotlib as plt
- model = models.Sequential()
- model.add(layers.Conv2D(32, (3, 3), activation='relu', input_shape=(32, 32, 3)))
- model.add(layers.MaxPooling2D((2, 2)))
- model.add(layers.Conv2D(64, (3, 3), activation='relu'))
- model.add(layers.MaxPooling2D((2, 2)))
- model.add(layers.Conv2D(64, (3, 3), activation='relu'))
- model.add(layers.Flatten())
- model.add(layers.Dense(64, activation='relu'))
- model.add(layers.Dense(10, activation='softmax'))
- model.summary()
- from keras.datasets import cifar10
- from keras.utils import to_categorical
- (train_images, train_labels), (test_images, test_labels) = cifar10.load_data()
- # print(len(train_images))
- # print(len(test_labels))
- train_images = train_images.reshape((50000, 32, 32, 3))
- train_images = train_images.astype('float32') / 255
- test_images = test_images.reshape((10000, 32, 32, 3))
- test_images = test_images.astype('float32') / 255
- train_labels = to_categorical(train_labels)
- test_labels = to_categorical(test_labels)
- model.compile(optimizer='adam', loss='categorical_crossentropy', metrics=['accuracy'])
- model.fit(train_images, train_labels, epochs=5, batch_size=64)
- test_loss, test_acc = model.evaluate(test_images, test_labels)
- print('test_acc = ', test_acc)
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