# Copyright (c) 2020 PaddlePaddle 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.# TODO: define loss functions of neural network # __all__ = ['bpr_loss',# 'center_loss',# 'cross_entropy',# 'dice_loss',# 'edit_distance',# 'huber_loss',# 'iou_similarity',# 'kldiv_loss',# 'log_loss',# 'margin_rank_loss',# 'mse_loss',# 'nce',# 'npair_loss',# 'rank_loss',# 'sampled_softmax_with_cross_entropy',# 'sigmoid_cross_entropy_with_logits',# 'sigmoid_focal_loss',# 'smooth_l1',# 'softmax_with_cross_entropy',# 'square_error_cost',# 'ssd_loss',# 'teacher_student_sigmoid_loss']