refactor(autoencoder.py): __init__ code de-dup
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@@ -8,6 +8,7 @@ from easyvae.autoencoder import ( # noqa
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AAutoencoder
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)
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from easyvae.activations import LeakyReLU
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from easyvae.utils import dynamic_loss_plot_finish
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def load_mnist() -> list[np.ndarray]:
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@@ -38,15 +39,15 @@ def mnist_train(
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autoencoder = cls(
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[in_len, 256, 2],
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[2, 256, in_len],
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0.001,
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0.0001,
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LeakyReLU()
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)
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def handler(signum, frame):
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print(f"Saving {filename} before exit ...")
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autoencoder.save(filename)
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plt.close()
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plt.ioff()
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if plt.get_fignums():
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dynamic_loss_plot_finish()
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mnist_test(autoencoder)
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exit()
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@@ -62,6 +63,45 @@ def mnist_train(
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return autoencoder
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def plot_mnist_latent_space(autoencoder: AAutoencoder, x: np.ndarray, y,):
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codes = []
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for x in x:
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_, c = autoencoder.forward(x.flatten())
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codes.append(c)
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codes = np.array(codes)
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if codes.shape[1] == 2:
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plt.figure(figsize=(6, 6))
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scatter = plt.scatter(
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codes[:, 0],
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codes[:, 1],
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c=y,
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cmap='tab10',
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s=5,
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alpha=0.7
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)
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plt.colorbar(scatter)
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plt.grid(True)
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plt.show()
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def plot_random_reconstruction(autoencoder: AAutoencoder,
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example: np.ndarray,
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img_shape,
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y):
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output, code = autoencoder.forward(example.flatten())
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plt.subplot(1, 3, 1)
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plt.matshow(
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example.reshape(img_shape),
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fignum=False)
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plt.title(f"Input ({y})")
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plt.subplot(1, 3, 2)
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plt.matshow(
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output.reshape(img_shape),
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fignum=False)
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plt.title(f"Output ({y})")
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print(f'{code=}')
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def mnist_test(model: str | AAutoencoder):
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x_train, _, x_test, y_test = load_mnist()
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in_len = x_train[0].shape[0] * x_train[0].shape[0]
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@@ -76,41 +116,9 @@ def mnist_test(model: str | AAutoencoder):
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autoencoder = model
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idx = np.random.randint(0, len(x_test))
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example: np.ndarray = x_test[idx]
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output, code = autoencoder.forward(example.flatten())
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plt.subplot(1, 3, 1)
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plt.matshow(
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example.reshape(img_shape),
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fignum=False)
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plt.title(f"Input ({y_test[idx]})")
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plt.subplot(1, 3, 2)
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plt.matshow(
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output.reshape(img_shape),
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fignum=False)
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plt.title(f"Output ({y_test[idx]})")
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plt.subplot(1, 3, 3)
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code = np.reshape(code, (code.shape[0], 1))
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plt.matshow(code, fignum=False)
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plt.title(f"Code ({y_test[idx]})")
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plt.show()
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if code.shape[0] == 2:
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codes = []
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for x in x_test:
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_, c = autoencoder.forward(x.flatten())
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codes.append(c)
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codes = np.array(codes)
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if codes.shape[1] == 2:
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plt.figure(figsize=(6, 6))
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scatter = plt.scatter(
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codes[:, 0],
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codes[:, 1],
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c=y_test,
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cmap='tab10',
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s=5,
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alpha=0.7
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)
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plt.colorbar(scatter)
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plt.grid(True)
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plt.show()
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plot_random_reconstruction(autoencoder, example, img_shape, y_test[idx])
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if autoencoder.space_dim == 2:
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plot_mnist_latent_space(autoencoder, x_test, y_test)
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if __name__ == "__main__":
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@@ -122,14 +130,14 @@ if __name__ == "__main__":
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'-e',
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type=int,
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nargs='?',
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default=1000,
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default=30,
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help='Max epochs'
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)
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parser.add_argument(
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'-p',
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type=int,
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nargs='?',
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default=5,
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default=30,
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help='Patience'
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)
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parser.add_argument(
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@@ -141,7 +149,7 @@ if __name__ == "__main__":
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parser.add_argument(
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'-r',
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action='store_true',
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help='Run mode'
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help='Run the model'
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)
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args = parser.parse_args(sys.argv[1:])
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if args.r:
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