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1# Copyright 2019 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"""Additional losses that conform to Keras API.""" 

16 

17from tensorflow_addons.losses.contrastive import contrastive_loss, ContrastiveLoss 

18from tensorflow_addons.losses.focal_loss import ( 

19 sigmoid_focal_crossentropy, 

20 SigmoidFocalCrossEntropy, 

21) 

22from tensorflow_addons.losses.giou_loss import giou_loss, GIoULoss 

23from tensorflow_addons.losses.lifted import lifted_struct_loss, LiftedStructLoss 

24from tensorflow_addons.losses.sparsemax_loss import sparsemax_loss, SparsemaxLoss 

25from tensorflow_addons.losses.triplet import ( 

26 triplet_semihard_loss, 

27 triplet_hard_loss, 

28 TripletSemiHardLoss, 

29 TripletHardLoss, 

30) 

31from tensorflow_addons.losses.quantiles import pinball_loss, PinballLoss 

32 

33 

34from tensorflow_addons.losses.npairs import ( 

35 npairs_loss, 

36 NpairsLoss, 

37 npairs_multilabel_loss, 

38 NpairsMultilabelLoss, 

39) 

40from tensorflow_addons.losses.kappa_loss import WeightedKappaLoss