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mnist.py
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mnist.py
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# Copyright 2019 The FastEstimator Authors. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# ==============================================================================
from typing import Tuple
import tensorflow as tf
from fastestimator.dataset.numpy_dataset import NumpyDataset
def load_data(image_key: str = "x", label_key: str = "y") -> Tuple[NumpyDataset, NumpyDataset]:
"""Load and return the MNIST dataset.
Args:
image_key: The key for image.
label_key: The key for label.
Returns:
(train_data, eval_data)
"""
(x_train, y_train), (x_eval, y_eval) = tf.keras.datasets.mnist.load_data()
train_data = NumpyDataset({image_key: x_train, label_key: y_train})
eval_data = NumpyDataset({image_key: x_eval, label_key: y_eval})
return train_data, eval_data