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1# Copyright 2015 The TensorFlow Authors. All Rights Reserved. 

2# 

3# Licensed under the Apache License, Version 2.0 (the "License"); 

4# you may not use this file except in compliance with the License. 

5# You may obtain a copy of the License at 

6# 

7# http://www.apache.org/licenses/LICENSE-2.0 

8# 

9# Unless required by applicable law or agreed to in writing, software 

10# distributed under the License is distributed on an "AS IS" BASIS, 

11# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 

12# See the License for the specific language governing permissions and 

13# limitations under the License. 

14# ============================================================================== 

15"""Various learning rate decay functions.""" 

16 

17from tensorflow.python.keras.optimizer_v2 import legacy_learning_rate_decay as learning_rate_decay 

18 

19 

20exponential_decay = learning_rate_decay.exponential_decay 

21piecewise_constant = learning_rate_decay.piecewise_constant 

22polynomial_decay = learning_rate_decay.polynomial_decay 

23natural_exp_decay = learning_rate_decay.natural_exp_decay 

24inverse_time_decay = learning_rate_decay.inverse_time_decay 

25cosine_decay = learning_rate_decay.cosine_decay 

26cosine_decay_restarts = learning_rate_decay.cosine_decay_restarts 

27linear_cosine_decay = learning_rate_decay.linear_cosine_decay 

28noisy_linear_cosine_decay = learning_rate_decay.noisy_linear_cosine_decay