Esempio n. 1
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model.add(Dropout(0.25))
model.add(BatchNormalization())
model.add(Dense(10, activation='relu'))  # 10 digits classes
model.compile(loss='cce', optimizer=opt)

model.summary()

model_epochs = 5
fit_stats = model.fit(train_data,
                      one_hot(train_label),
                      batch_size=128,
                      epochs=model_epochs,
                      validation_data=(test_data, one_hot(test_label)),
                      shuffle_data=True)

eval_stats = model.evaluate(test_data, one_hot(test_label))

predictions = unhot(model.predict(test_data, True))
print_results(predictions, test_label)
plot_img_results(test_data[:40], test_label[:40], predictions,
                 dataset='mnist')  # truncate to 40 samples

model_name = model.model_name
plot_metric('loss',
            model_epochs,
            fit_stats['train_loss'],
            fit_stats['valid_loss'],
            model_name=model_name)
plot_metric('accuracy',
            model_epochs,
            fit_stats['train_acc'],
Esempio n. 2
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model.add(Dropout(0.2))
model.add(BatchNormalization())
model.add(Dense(100))
model.add(Activation('softmax'))
model.compile(loss = 'cce', optimizer = opt)

model.summary(model_name = 'cifar-100 mlp')

model_epochs = 12 # change to 200 epochs
fit_stats = model.fit(reshaped_train_data,
                      one_hot(train_label),
                      batch_size      = 128,
                      epochs          = model_epochs,
                      validation_data = (reshaped_test_data, one_hot(test_label)),
                      shuffle_data    = True)

eval_stats  = model.evaluate(reshaped_test_data, one_hot(test_label))
predictions = unhot(model.predict(reshaped_test_data, True))
print_results(predictions, test_label)

plot_img_results(test_data, test_label, predictions, dataset = 'cifar', channels = 3)

plot_metric('loss', model_epochs, fit_stats['train_loss'], fit_stats['valid_loss'], model_name = model.model_name)
plot_metric('accuracy', model_epochs, fit_stats['train_acc'], fit_stats['valid_acc'], model_name = model.model_name)
plot_metric('evaluation',
                          eval_stats['valid_batches'],
                          eval_stats['valid_loss'],
                          eval_stats['valid_acc'],
                          model_name = model_name,
                          legend     = ['loss', 'acc'])
Esempio n. 3
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model.add(Dense(10))
model.add(Activation('softmax'))
model.compile(loss='cce', optimizer=opt)

model.summary(model_name='cifar-10 mlp')

model_epochs = 200  # change to 200 epochs
fit_stats = model.fit(transformed_train_data,
                      one_hot(train_label),
                      batch_size=128,
                      epochs=model_epochs,
                      validation_data=(transformed_test_data,
                                       one_hot(test_label)),
                      shuffle_data=True)

eval_stats = model.evaluate(transformed_test_data, one_hot(test_label))
predictions = unhot(model.predict(transformed_test_data, True))
print_results(predictions, test_label)

plot_img_results(test_data,
                 test_label,
                 predictions,
                 dataset='cifar',
                 channels=3)

model_name = model.model_name
plot_metric('loss',
            model_epochs,
            fit_stats['train_loss'],
            fit_stats['valid_loss'],
            model_name=model_name)