How to use is_lower method in assertpy

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segmentation.py

Source:segmentation.py Github

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1#!/​usr/​bin/​env python32# -*- coding: utf-8 -*-3# Created on Thu Nov 26 19:09:53 20204# Author: zhuoyin94 <zhuoyin94@163.com>5# Github: https:/​/​github.com/​MichaelYin19946# Reference: https:/​/​github.com/​someus/​7"""8本模块(textrank.segmentation)提供了用于中文分词的WordSegmentation类。9"""10import pkuseg11import unicodedata12SENTENCE_DELIMITERS = ["?", "!", ";", "？", "、", ",", ":",13 "！", "。", "；", "……", "…", "\n", "\t"]14ALLOW_WORD_TAGS = ["an", "i", "j", "l", "n",15 "nr", "nrfg", "ns", "nt",16 "nz", "t", "v", "vd", "vn", "eng"]17# cop = re.compile(u"[^\u4e00-\u9faf^*^a-z^A-Z^0-9]")18class WordSegmentation():19 """分词辅助。依据给定条件，将包含句子的列表切分为词的有序集合。20 @Parameters:21 ----------22 is_lower: {bool-like}23 是否将文本中的英文字符置为小写，默认开启。24 is_use_stop_words: {bool-like}25 是否将待处理文本中的停用词滤除，停用词表由stop_words_vocab确定。26 is_use_word_tags_filter: {bool-like}27 是否根据词性对切分后的词语进行清洗。28 allow_word_tags: {list-like}29 允许的词性列表。30 delimiters: {list-like}31 区分段落中句子的分隔符。32 stop_words_vocab: {list-like}33 用户停用词表，默认为空。34 user_vocab: {list-like}35 用户专业词表，默认为空，若是传值则在切词过程中pkuseg不对这些词进行切分。36 @References:37 ----------38 [1] https:/​/​github.com/​letiantian/​TextRank4ZH39 [2] https:/​/​github.com/​lancopku/​pkuseg-python40 """41 def __init__(self,42 is_lower=True,43 is_use_stop_words=False,44 is_use_word_tags_filter=False,45 allow_word_tags=None,46 delimiters=None,47 user_vocab=None,48 stop_words_vocab=None):49 # 针对输入stop_words的预处理50 self.stop_words = stop_words_vocab or []51 self.stop_words = [word.strip() for word in self.stop_words]52 self.stop_words = set(self.stop_words)53 self.default_user_vocab = user_vocab54 # 类参数55 self.is_lower = is_lower56 self.is_use_stop_words = is_use_stop_words57 self.is_use_word_tags_filter = is_use_word_tags_filter58 if not allow_word_tags:59 self.default_allow_word_tags = list(set(ALLOW_WORD_TAGS))60 else:61 self.default_allow_word_tags = list(set(allow_word_tags))62 if not delimiters:63 self.default_delimiters = list(set(SENTENCE_DELIMITERS))64 else:65 self.default_delimiters = list(set(delimiters))66 # {句子：切分的句子}67 self.sentence_cutted_dict = {}68 self.sentence_cutted_postag_dict = {}69 # TODO(zhuoyin94@163.com): pkuseg的postag需要internet连接获取词表70 self.seg = pkuseg.pkuseg(user_dict=user_vocab, postag=True)71 def segment_sentence(self, sentence,72 is_lower=None,73 is_use_stop_words=None,74 is_use_word_tags_filter=None):75 """对单个句子(sentence)进行分词，以list类型返回分词后的结果。76 @Parameters:77 ----------78 sentence: {str-like}79 需要被分词的句子（字符串类型）。80 is_lower: {bool-like}81 见全局注释。82 is_use_stop_words: {bool-like}83 见全局注释。84 is_use_word_tags_filter: {bool-like}85 见全局注释。86 @Raises:87 ----------88 TypeError: 输入的不是字符串导致类型错误89 @Returns:90 ----------91 pkuseg分词后的单词列表。如：92 "我是中国公民" --->> [”我“, "是", "中国", "公民"]93 """94 if not isinstance(sentence, str):95 raise TypeError(("The input sentence type should be str, turns " +96 "out to be: {}".format(type(sentence))))97 if not is_lower:98 is_lower = self.is_lower99 if not is_use_stop_words:100 is_use_stop_words = self.is_use_stop_words101 if not is_use_word_tags_filter:102 is_use_word_tags_filter = self.is_use_word_tags_filter103 # 调用pkuseg，切分句子104 if sentence in self.sentence_cutted_dict and \105 sentence in self.sentence_cutted_postag_dict:106 word_list = self.sentence_cutted_dict[sentence]107 postag_list = self.sentence_cutted_postag_dict[sentence]108 else:109 sentence_cutted = self.seg.cut(sentence)110 word_list = [item[0] for item in sentence_cutted]111 postag_list = [item[1] for item in sentence_cutted]112 self.sentence_cutted_dict[sentence] = word_list113 self.sentence_cutted_postag_dict[sentence] = postag_list114 # STEP 1: 依据词性滤除不满足词性要求的词汇115 if is_use_word_tags_filter:116 word_list_tmp = []117 for i, word in enumerate(word_list):118 if postag_list[i] in self.default_allow_word_tags:119 word_list_tmp.append(word)120 word_list = word_list_tmp121 # STEP 2: 滤除文本中的特殊符号122 word_list = [word.strip() for word in word_list]123 word_list = [word for word in word_list if len(word) > 0]124 # STEP 3: 转换英文的大小写125 if is_lower:126 word_list = [word.lower() for word in word_list]127 # STEP 4: 依据要求滤除停用词128 if is_use_stop_words:129 word_list_tmp = []130 for i, word in enumerate(word_list):131 if word not in self.stop_words:132 word_list_tmp.append(word)133 word_list = word_list_tmp134 return word_list135 def segment_sentence_list(self, sentence_list,136 is_lower=None,137 is_use_stop_words=None,138 is_use_word_tags_filter=None):139 """对包含句子集合的列表内的每一个句子进行切分。140 @Parameters:141 ----------142 sentence_list: {list-like}143 需要被分词的句子集合（list类型）。list的每一个元素为一个未被分词的句子。144 is_lower: {bool-like}145 见全局注释。146 is_use_stop_words: {bool-like}147 见全局注释。148 is_use_word_tags_filter: {bool-like}149 见全局注释。150 @Raises:151 ----------152 TypeError: 方法输入不是句子的列表集合导致类型错误153 @Returns:154 ----------155 分词或者分句之后的结果。代码实现参考了文献[1]。分词结果例如：156 [[”我“, "是", "中国", "公民"],157 ...158 ["北京", "工业", "大学"]]159 """160 if not isinstance(sentence_list, list):161 raise TypeError("Invalid input sentence list !")162 if not is_lower:163 is_lower = self.is_lower164 if not is_use_stop_words:165 is_use_stop_words = self.is_use_stop_words166 if not is_use_word_tags_filter:167 is_use_word_tags_filter = self.is_use_word_tags_filter168 sentence_cutted_list = []169 for sentence in sentence_list:170 sentence_cutted_list.append(171 self.segment_sentence(sentence,172 is_lower,173 is_use_stop_words,174 is_use_word_tags_filter))175 return sentence_cutted_list176 def segment_paragraph(self, paragraph=None,177 is_lower=None,178 is_use_stop_words=None,179 is_use_word_tags_filter=None):180 """对广义的文章（句子段落也被认为是文章）依据分割符，切分为句子的列表。181 @Parameters:182 ----------183 paragraph: {str-like}184 需要被分词的句子集合（list类型）。list的每一个元素为一个未被分词的句子。185 is_lower: {bool-like}186 见全局注释。187 is_use_stop_words: {bool-like}188 见全局注释。189 is_use_word_tags_filter: {bool-like}190 见全局注释。191 @Returns:192 ----------193 切分后的句子列表。194 """195 if not isinstance(paragraph, str):196 raise TypeError("Invalid input paragraph type !")197 if not is_lower:198 is_lower = self.is_lower199 if not is_use_stop_words:200 is_use_stop_words = self.is_use_stop_words201 if not is_use_word_tags_filter:202 is_use_word_tags_filter = self.is_use_word_tags_filter203 # STEP 0: 预处理。尽量将paragraph的符号转换为英文字符，提升切分正确率204 paragraph = unicodedata.normalize("NFKC", paragraph)205 # STEP 1: 依据分隔符，将段落切分为句子列表206 tmp = [paragraph]207 for sep in self.default_delimiters:208 sentence_list = tmp209 tmp = []210 for sentence in sentence_list:211 tmp += sentence.split(sep)212 sentence_list = [s.strip() for s in sentence_list if len(s.strip()) > 0]213 # STEP 2: 对句子列表的每一个句子进行分词214 sentence_list_cutted = self.segment_sentence_list(215 sentence_list, is_lower, is_use_stop_words,216 is_use_word_tags_filter)...

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mvn_tri_test.py

Source:mvn_tri_test.py Github

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1# Copyright 2021 DeepMind Technologies Limited. 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 at6#7# http:/​/​www.apache.org/​licenses/​LICENSE-2.08#9# Unless required by applicable law or agreed to in writing, software10# 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 and13# limitations under the License.14# ==============================================================================15"""Tests for `mvn_tri.py`."""16from absl.testing import absltest17from absl.testing import parameterized18import chex19from distrax._src.distributions.mvn_tri import MultivariateNormalTri20from distrax._src.utils import equivalence21import jax.numpy as jnp22import numpy as np23def _get_scale_tril_from_scale_triu(scale_triu: np.ndarray) -> np.ndarray:24 scale_triu = np.triu(scale_triu)25 scale_triu_t = np.vectorize(np.transpose, signature='(k,k)->(k,k)')(26 scale_triu)27 cov = np.matmul(scale_triu, scale_triu_t)28 return np.linalg.cholesky(cov)29class MultivariateNormalTriTest(30 equivalence.EquivalenceTest, parameterized.TestCase):31 def setUp(self):32 # pylint: disable=too-many-function-args33 super().setUp(MultivariateNormalTri)34 @parameterized.named_parameters(35 ('all inputs are None', {}),36 ('wrong dimension of loc', {37 'loc': np.array(0.),38 }),39 ('scale_tri is 0d', {40 'scale_tri': np.array(1.),41 }),42 ('scale_tri is 1d', {43 'scale_tri': np.ones((4,)),44 }),45 ('scale_tri is not square', {46 'scale_tri': np.ones((4, 3)),47 }),48 ('inconsistent loc and scale_tri', {49 'loc': np.zeros((4,)),50 'scale_tri': np.ones((5, 5)),51 }),52 )53 def test_raises_on_wrong_inputs(self, dist_kwargs):54 with self.assertRaises(ValueError):55 self.distrax_cls(**dist_kwargs)56 @parameterized.named_parameters(57 ('loc provided', {'loc': np.zeros((4,))}),58 ('scale_tri provided', {'scale_tri': np.eye(4)}),59 )60 def test_default_properties(self, dist_kwargs):61 dist = self.distrax_cls(**dist_kwargs)62 self.assertTrue(dist.is_lower)63 self.assertion_fn(rtol=1e-3)(dist.loc, jnp.zeros((4,)))64 self.assertion_fn(rtol=1e-3)(dist.scale_tri, jnp.eye(4))65 @parameterized.named_parameters(66 ('unbatched', (), (4,), (4, 4), True),67 ('batched loc', (7,), (7, 4), (4, 4), True),68 ('batched scale_tri lower', (7,), (4,), (7, 4, 4), True),69 ('batched scale_tri upper', (7,), (4,), (7, 4, 4), False),70 )71 def test_properties(self, batch_shape, loc_shape, scale_tri_shape, is_lower):72 rng = np.random.default_rng(2022)73 loc = rng.normal(size=loc_shape)74 scale_tri = rng.normal(size=scale_tri_shape)75 dist = self.distrax_cls(loc=loc, scale_tri=scale_tri, is_lower=is_lower)76 tri_fn = jnp.tril if is_lower else jnp.triu77 self.assertEqual(dist.batch_shape, batch_shape)78 self.assertEqual(dist.is_lower, is_lower)79 self.assertion_fn(rtol=1e-3)(80 dist.loc, jnp.broadcast_to(loc, batch_shape + (4,)))81 self.assertion_fn(rtol=1e-3)(dist.scale_tri, jnp.broadcast_to(82 tri_fn(scale_tri), batch_shape + (4, 4)))83 @chex.all_variants84 @parameterized.named_parameters(85 ('unbatched, no shape', (), (4,), (4, 4)),86 ('batched loc, no shape', (), (7, 4), (4, 4)),87 ('batched scale_tri, no shape', (), (4,), (7, 4, 4)),88 ('unbatched, with shape', (3,), (4,), (4, 4)),89 ('batched loc, with shape', (3,), (7, 4), (4, 4)),90 ('batched scale_tri, with shape', (3,), (4,), (7, 4, 4)),91 )92 def test_sample_shape(self, sample_shape, loc_shape, scale_tri_shape):93 rng = np.random.default_rng(2022)94 loc = rng.normal(size=loc_shape)95 scale_tri = rng.normal(size=scale_tri_shape)96 dist_kwargs = {'loc': loc, 'scale_tri': scale_tri}97 tfp_dist_kwargs = {'loc': loc, 'scale_tril': scale_tri}98 super()._test_sample_shape(99 dist_args=(), dist_kwargs=dist_kwargs, tfp_dist_kwargs=tfp_dist_kwargs,100 sample_shape=sample_shape)101 @chex.all_variants102 @parameterized.named_parameters(103 ('float32', jnp.float32),104 ('float64', jnp.float64))105 def test_sample_dtype(self, dtype):106 dist_params = {107 'loc': np.array([0., 0.], dtype),108 'scale_tri': np.array([[1., 0.], [0., 1.]], dtype)}109 dist = self.distrax_cls(**dist_params)110 samples = self.variant(dist.sample)(seed=self.key)111 self.assertEqual(samples.dtype, dist.dtype)112 chex.assert_type(samples, dtype)113 @chex.all_variants114 @parameterized.named_parameters(115 ('unbatched, unbatched value', (4,), (4,), (4, 4), True),116 ('unbatched, unbatched value, upper', (4,), (4,), (4, 4), False),117 ('batched loc, unbatched value', (4,), (7, 4), (4, 4), True),118 ('batched scale_tri, unbatched value', (4,), (4,), (7, 4, 4), True),119 ('unbatched, batched value', (3, 7, 4), (4,), (4, 4), True),120 ('batched loc, batched value', (3, 7, 4), (7, 4), (4, 4), True),121 ('batched scale_tri, batched value', (3, 7, 4), (4,), (7, 4, 4), True),122 ('batched scale_tri, batched value, upper',123 (3, 7, 4), (4,), (7, 4, 4), False),124 )125 def test_log_prob(self, value_shape, loc_shape, scale_tri_shape, is_lower):126 rng = np.random.default_rng(2022)127 loc = rng.normal(size=loc_shape)128 scale_tri = rng.normal(size=scale_tri_shape)129 value = rng.normal(size=value_shape)130 dist_kwargs = {'loc': loc, 'scale_tri': scale_tri, 'is_lower': is_lower}131 if is_lower:132 tfp_dist_kwargs = {'loc': loc, 'scale_tril': scale_tri}133 else:134 scale_tril = _get_scale_tril_from_scale_triu(scale_tri)135 tfp_dist_kwargs = {'loc': loc, 'scale_tril': scale_tril}136 super()._test_attribute(137 attribute_string='log_prob',138 dist_kwargs=dist_kwargs,139 tfp_dist_kwargs=tfp_dist_kwargs,140 call_args=(value,),141 assertion_fn=self.assertion_fn(rtol=1e-3))142 @chex.all_variants(with_pmap=False)143 @parameterized.named_parameters(144 ('unbatched', (4,), (4, 4)),145 ('batched loc', (7, 4), (4, 4)),146 ('batched scale_tri', (4,), (7, 4, 4)),147 )148 def test_method(self, loc_shape, scale_tri_shape):149 rng = np.random.default_rng(2022)150 loc = rng.normal(size=loc_shape)151 scale_tri = rng.normal(size=scale_tri_shape)152 for method in ['entropy', 'mean', 'stddev', 'variance',153 'covariance', 'mode']:154 for is_lower in [True, False]:155 if method in ['stddev', 'covariance', 'variance']:156 rtol = 2e-2 if is_lower else 5e-2157 else:158 rtol = 1e-3159 dist_kwargs = {'loc': loc, 'scale_tri': scale_tri, 'is_lower': is_lower}160 if is_lower:161 tfp_dist_kwargs = {'loc': loc, 'scale_tril': scale_tri}162 else:163 scale_tril = _get_scale_tril_from_scale_triu(scale_tri)164 tfp_dist_kwargs = {'loc': loc, 'scale_tril': scale_tril}165 with self.subTest(method=method, is_lower=is_lower):166 super()._test_attribute(167 method,168 dist_kwargs=dist_kwargs,169 tfp_dist_kwargs=tfp_dist_kwargs,170 assertion_fn=self.assertion_fn(rtol=rtol))171 @chex.all_variants(with_pmap=False)172 @parameterized.named_parameters(173 ('kl distrax_to_distrax', 'kl_divergence', 'distrax_to_distrax'),174 ('kl distrax_to_tfp', 'kl_divergence', 'distrax_to_tfp'),175 ('kl tfp_to_distrax', 'kl_divergence', 'tfp_to_distrax'),176 ('cross-ent distrax_to_distrax', 'cross_entropy', 'distrax_to_distrax'),177 ('cross-ent distrax_to_tfp', 'cross_entropy', 'distrax_to_tfp'),178 ('cross-ent tfp_to_distrax', 'cross_entropy', 'tfp_to_distrax'))179 def test_with_two_distributions(self, function_string, mode_string):180 rng = np.random.default_rng(2022)181 loc1 = rng.normal(size=(5, 1, 4))182 scale_tri1 = rng.normal(size=(3, 4, 4))183 loc2 = rng.normal(size=(3, 4))184 scale_tri2 = rng.normal(size=(4, 4))185 for is_lower in [True, False]:186 dist1_kwargs = {187 'loc': loc1, 'scale_tri': scale_tri1, 'is_lower': is_lower}188 dist2_kwargs = {189 'loc': loc2, 'scale_tri': scale_tri2, 'is_lower': is_lower}190 if is_lower:191 tfp_dist1_kwargs = {'loc': loc1, 'scale_tril': scale_tri1}192 tfp_dist2_kwargs = {'loc': loc2, 'scale_tril': scale_tri2}193 else:194 tfp_dist1_kwargs = {195 'loc': loc1,196 'scale_tril': _get_scale_tril_from_scale_triu(scale_tri1)197 }198 tfp_dist2_kwargs = {199 'loc': loc2,200 'scale_tril': _get_scale_tril_from_scale_triu(scale_tri2)201 }202 with self.subTest(is_lower=is_lower):203 super()._test_with_two_distributions(204 attribute_string=function_string,205 mode_string=mode_string,206 dist1_kwargs=dist1_kwargs,207 dist2_kwargs=dist2_kwargs,208 tfp_dist1_kwargs=tfp_dist1_kwargs,209 tfp_dist2_kwargs=tfp_dist2_kwargs,210 assertion_fn=self.assertion_fn(rtol=1e-3))211 def test_jittable(self):212 super()._test_jittable(213 dist_kwargs={'loc': np.zeros((4,))},214 assertion_fn=self.assertion_fn(rtol=1e-3))215 @parameterized.named_parameters(216 ('single element', 2),217 ('range', slice(-1)),218 ('range_2', (slice(None), slice(-1))),219 )220 def test_slice(self, slice_):221 rng = np.random.default_rng(2022)222 loc = rng.normal(size=(6, 5, 4))223 scale_tri = rng.normal(size=(4, 4))224 for is_lower in [True, False]:225 with self.subTest(is_lower=is_lower):226 dist_kwargs = {'loc': loc, 'scale_tri': scale_tri, 'is_lower': is_lower}227 dist = self.distrax_cls(**dist_kwargs)228 self.assertEqual(dist[slice_].batch_shape, loc[slice_].shape[:-1])229 self.assertEqual(dist[slice_].event_shape, dist.event_shape)230 self.assertEqual(dist[slice_].is_lower, dist.is_lower)231 self.assertion_fn(rtol=1e-3)(dist[slice_].mean(), loc[slice_])232 def test_slice_ellipsis(self):233 rng = np.random.default_rng(2022)234 loc = rng.normal(size=(6, 5, 4))235 scale_tri = rng.normal(size=(4, 4))236 for is_lower in [True, False]:237 with self.subTest(is_lower=is_lower):238 dist_kwargs = {'loc': loc, 'scale_tri': scale_tri, 'is_lower': is_lower}239 dist = self.distrax_cls(**dist_kwargs)240 self.assertEqual(dist[..., -1].batch_shape, (6,))241 self.assertEqual(dist[..., -1].event_shape, dist.event_shape)242 self.assertEqual(dist[..., -1].is_lower, dist.is_lower)243 self.assertion_fn(rtol=1e-3)(dist[..., -1].mean(), loc[:, -1, :])244if __name__ == '__main__':...

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