我无法使用SnowballStemmer阻止某些阿拉伯语术语。 成功阻止了许多术语,但某些术语导致引发AttributeError。 请参阅下面的最小示例,该示例在术语“发件人”上失败。
(anaconda2-4.4.0) richard-balmer-macbook:~ richardbalmer$ pip freeze | grep nltk
nltk==3.2.5
(anaconda2-4.4.0) richard-balmer-macbook:~ richardbalmer$ ipython
Python 2.7.13 |Anaconda custom (x86_64)| (default, Dec 20 2016, 23:05:08)
Type "copyright", "credits" or "license" for more information.
IPython 5.3.0 -- An enhanced Interactive Python.
? -> Introduction and overview of IPython's features.
%quickref -> Quick reference.
help -> Python's own help system.
object? -> Details about 'object', use 'object??' for extra details.
In [1]: from nltk.stem.snowball import SnowballStemmer
In [2]: stemmer = SnowballStemmer('arabic')
In [3]: stemmer.stem(u'تسدد')
Out[3]: u'\u062a\u0633\u062f\u062f'
In [4]: stemmer.stem(u'من')
---------------------------------------------------------------------------
AttributeError Traceback (most recent call last)
<ipython-input-4-ffa733106049> in <module>()
----> 1 stemmer.stem(u'من')
/Users/richardbalmer/.pyenv/versions/anaconda2-4.4.0/lib/python2.7/site-packages/nltk/stem/snowball.pyc in stem(self, word)
762 modified_word = self.__Suffix_Verb_Step2b(modified_word)
763 if not self.suffix_verb_step2b_success:
--> 764 modified_word = self.__Suffix_Verb_Step2a(modified_word)
765 if self.is_noun:
766 modified_word = self.__Suffix_Noun_Step2c2(modified_word)
/Users/richardbalmer/.pyenv/versions/anaconda2-4.4.0/lib/python2.7/site-packages/nltk/stem/snowball.pyc in __Suffix_Verb_Step2a(self, token)
533 break
534
--> 535 if suffix in self.__conjugation_suffix_verb_present and len(token) > 5:
536 token = token[:-2] # present
537 self.suffix_verb_step2a_success = True
AttributeError: 'ArabicStemmer' object has no attribute '_ArabicStemmer__conjugation_suffix_verb_present'
@richbalmer感谢您报告此问题。
@LBenzahia你能帮忙研究一下吗? 提前致谢!
@richbalmer ,您好
无论如何,我已经解决了此PR#1856中的问题。
再次感谢你 !
@LBenzahia感谢您如此迅速地调查此事! 我越来越:
File "/Users/richardbalmer/src/nltk/nltk/stem/util.py", line 24
arabic_stopwords = ['إذ',
^
SyntaxError: Non-ASCII character '\xd8' in file /Users/richardbalmer/src/nltk/nltk/stem/util.py on line 24, but no encoding declared; see http://python.org/dev/peps/pep-0263/ for details
这似乎也导致测试在Jenkins上失败(https://nltk.ci.cloudbees.com/job/pull_request_tests/454/TOXENV=py27-jenkins,jdk=jdk8latestOnlineInstall/testReport/nose.failure/Failure/runTest /)。 我认为,所有你需要做的就是把# -*- coding: utf-8 -*-
在顶部stem/util.py
。
另外,在本地修复该错误后,我得到了UnicodeWarning:
/Users/richardbalmer/src/nltk/nltk/stem/snowball.py:748: UnicodeWarning: Unicode equal comparison failed to convert both arguments to Unicode - interpreting them as being unequal
if word in arabic_stopwords:
使这些停用词成为unicode字符串可能是值得的。
除此之外,您的修复程序对我来说效果很好-再次感谢!
ps另一个建议:测试集合包含比列表包含要快得多,因此可能值得将停用词列表作为集合。
@richbalmer您在使用python2.7吗? ,
使这些停用词成为unicode字符串可能是值得的。
为python2.7做完了,再次测试并告诉我,它对我来说很好。 我已经更新了公关
是的,我使用的是2.7。 看起来不错@LBenzahia-再次感谢!
仍然有错误:
AttributeError:'ArabicStemmer'对象没有属性'_ArabicStemmer__conjugation_suffix_verb_present'
我正在使用python 3
@NouraAls在PR中解决
最有用的评论
@richbalmer感谢您报告此问题。
@LBenzahia你能帮忙研究一下吗? 提前致谢!