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plt.xlabel(class_names[train_labels[i][0]])
plt.show()
png
Convolutional Neural Network
# Build the conv model.
print(\"building the convolution model...\")
conv_model = keras.Sequential(
[
keras.layers.Conv2D(32, (3, 3), input_shape=(32, 32, 3), padding=\"same\"),
keras.layers.ReLU(name=\"relu1\"),
keras.layers.MaxPooling2D((2, 2)),
keras.layers.Conv2D(64, (3, 3), padding=\"same\"),
keras.layers.ReLU(name=\"relu2\"),
keras.layers.MaxPooling2D((2, 2)),
keras.layers.Conv2D(64, (3, 3), padding=\"same\"),
keras.layers.ReLU(name=\"relu3\"),
keras.layers.Flatten(),
keras.layers.Dense(64, activation=\"relu\"),
keras.layers.Dense(10),
]
)
# Compile the mode with the necessary loss function and optimizer.
print(\"compiling the convolution model...\")
conv_model.compile(
optimizer=\"adam\",
loss=keras.losses.SparseCategoricalCrossentropy(from_logits=True),
metrics=[\"accuracy\"],
)
# Train the model.
print(\"conv model training...\")
conv_hist = conv_model.fit(train_ds, epochs=20, validation_data=test_ds)
building the convolution model...
compiling the convolution model...
conv model training...
Epoch 1/20
196/196 [==============================] - 16s 16ms/step - loss: 1.6367 - accuracy: 0.4041 - val_loss: 1.3283 - val_accuracy: 0.5275
Epoch 2/20
196/196 [==============================] - 3s 16ms/step - loss: 1.2207 - accuracy: 0.5675 - val_loss: 1.1365 - val_accuracy: 0.5965
Epoch 3/20
196/196 [==============================] - 3s 16ms/step - loss: 1.0649 - accuracy: 0.6267 - val_loss: 1.0219 - val_accuracy: 0.6378
Epoch 4/20
196/196 [==============================] - 3s 16ms/step - loss: 0.9642 - accuracy: 0.6613 - val_loss: 0.9741 - val_accuracy: 0.6601
Epoch 5/20
196/196 [==============================] - 3s 16ms/step - loss: 0.8779 - accuracy: 0.6939 - val_loss: 0.9145 - val_accuracy: 0.6826
Epoch 6/20
196/196 [==============================] - 3s 16ms/step - loss: 0.8126 - accuracy: 0.7180 - val_loss: 0.8841 - val_accuracy: 0.6913
Epoch 7/20
196/196 [==============================] - 3s 16ms/step - loss: 0.7641 - accuracy: 0.7334 - val_loss: 0.8667 - val_accuracy: 0.7049
Epoch 8/20
196/196 [==============================] - 3s 16ms/step - loss: 0.7210 - accuracy: 0.7503 - val_loss: 0.8363 - val_accuracy: 0.7089
Epoch 9/20
196/196 [==============================] - 3s 16ms/step - loss: 0.6796 - accuracy: 0.7630 - val_loss: 0.8150 - val_accuracy: 0.7203
Epoch 10/20
196/196 [==============================] - 3s 15ms/step - loss: 0.6370 - accuracy: 0.7793 - val_loss: 0.9021 - val_accuracy: 0.6964
Epoch 11/20
196/196 [==============================] - 3s 15ms/step - loss: 0.6089 - accuracy: 0.7886 - val_loss: 0.8336 - val_accuracy: 0.7207
Epoch 12/20
196/196 [==============================] - 3s 15ms/step - loss: 0.5723 - accuracy: 0.8022 - val_loss: 0.8326 - val_accuracy: 0.7246
Epoch 13/20
196/196 [==============================] - 3s 15ms/step - loss: 0.5375 - accuracy: 0.8144 - val_loss: 0.8482 - val_accuracy: 0.7223
Epoch 14/20
196/196 [==============================] - 3s 15ms/step - loss: 0.5121 - accuracy: 0.8230 - val_loss: 0.8244 - val_accuracy: 0.7306
Epoch 15/20
196/196 [==============================] - 3s 15ms/step - loss: 0.4786 - accuracy: 0.8363 - val_loss: 0.8313 - val_accuracy: 0.7363
Epoch 16/20
196/196 [==============================] - 3s 15ms/step - loss: 0.4518 - accuracy: 0.8458 - val_loss: 0.8634 - val_accuracy: 0.7293
Epoch 17/20
196/196 [==============================] - 3s 16ms/step - loss: 0.4403 - accuracy: 0.8489 - val_loss: 0.8683 - val_accuracy: 0.7290
Epoch 18/20
196/196 [==============================] - 3s 16ms/step - loss: 0.4094 - accuracy: 0.8576 - val_loss: 0.8982 - val_accuracy: 0.7272
Epoch 19/20
196/196 [==============================] - 3s 16ms/step - loss: 0.3941 - accuracy: 0.8630 - val_loss: 0.9537 - val_accuracy: 0.7200
Epoch 20/20
196/196 [==============================] - 3s 15ms/step - loss: 0.3778 - accuracy: 0.8691 - val_loss: 0.9780 - val_accuracy: 0.7184
Involutional Neural Network
# Build the involution model.
print(\"building the involution model...\")
inputs = keras.Input(shape=(32, 32, 3))
x, _ = Involution(
channel=3, group_number=1, kernel_size=3, stride=1, reduction_ratio=2, name=\"inv_1\"
)(inputs)
x = keras.layers.ReLU()(x)
x = keras.layers.MaxPooling2D((2, 2))(x)
x, _ = Involution(
channel=3, group_number=1, kernel_size=3, stride=1, reduction_ratio=2, name=\"inv_2\"
)(x)
x = keras.layers.ReLU()(x)
x = keras.layers.MaxPooling2D((2, 2))(x)
x, _ = Involution(
channel=3, group_number=1, kernel_size=3, stride=1, reduction_ratio=2, name=\"inv_3\"
)(x)
x = keras.layers.ReLU()(x)
x = keras.layers.Flatten()(x)
x = keras.layers.Dense(64, activation=\"relu\")(x)
outputs = keras.layers.Dense(10)(x)