wehub-resource-sync
36 lines
1.2 KiB
Python
36 lines
1.2 KiB
Python
# Copyright (c) 2019 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.
|
|
|
|
|
|
class DistributionNumpy:
|
|
"""
|
|
Distribution is the abstract base class for probability distributions.
|
|
"""
|
|
|
|
def sample(self):
|
|
"""Sampling from the distribution."""
|
|
raise NotImplementedError
|
|
|
|
def entropy(self):
|
|
"""The entropy of the distribution."""
|
|
raise NotImplementedError
|
|
|
|
def kl_divergence(self, other):
|
|
"""The KL-divergence between self distributions and other."""
|
|
raise NotImplementedError
|
|
|
|
def log_prob(self, value):
|
|
"""Log probability density/mass function."""
|
|
raise NotImplementedError
|