nltk StanfordNERTagger:NoClassDefFoundError:org/slf4j/LoggerFactory(在Windows中) [英] nltk StanfordNERTagger : NoClassDefFoundError: org/slf4j/LoggerFactory (In Windows)

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问题描述

注意:我正在将Python 2.7用作Anaconda发行版的一部分.我希望这对nltk 3.1来说不是问题.

NOTE: I am using Python 2.7 as part of Anaconda distribution. I hope this is not a problem for nltk 3.1.

我正在尝试将nltk用于NER

I am trying to use nltk for NER as

import nltk
from nltk.tag.stanford import StanfordNERTagger 
#st = StanfordNERTagger('stanford-ner/all.3class.distsim.crf.ser.gz', 'stanford-ner/stanford-ner.jar')
st = StanfordNERTagger('english.all.3class.distsim.crf.ser.gz') 
print st.tag(str)

但是我得到

Exception in thread "main" java.lang.NoClassDefFoundError: org/slf4j/LoggerFactory
    at edu.stanford.nlp.io.IOUtils.<clinit>(IOUtils.java:41)
    at edu.stanford.nlp.ie.AbstractSequenceClassifier.classifyAndWriteAnswers(AbstractSequenceClassifier.java:1117)
    at edu.stanford.nlp.ie.AbstractSequenceClassifier.classifyAndWriteAnswers(AbstractSequenceClassifier.java:1076)
    at edu.stanford.nlp.ie.AbstractSequenceClassifier.classifyAndWriteAnswers(AbstractSequenceClassifier.java:1057)
    at edu.stanford.nlp.ie.crf.CRFClassifier.main(CRFClassifier.java:3088)
Caused by: java.lang.ClassNotFoundException: org.slf4j.LoggerFactory
    at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
    ... 5 more

Traceback (most recent call last):
  File "X:\jnk.py", line 47, in <module>
    print st.tag(str)
  File "X:\Anaconda2\lib\site-packages\nltk\tag\stanford.py", line 66, in tag
    return sum(self.tag_sents([tokens]), []) 
  File "X:\Anaconda2\lib\site-packages\nltk\tag\stanford.py", line 89, in tag_sents
    stdout=PIPE, stderr=PIPE)
  File "X:\Anaconda2\lib\site-packages\nltk\internals.py", line 134, in java
    raise OSError('Java command failed : ' + str(cmd))
OSError: Java command failed : ['X:\\PROGRA~1\\Java\\JDK18~1.0_6\\bin\\java.exe', '-mx1000m', '-cp', 'X:\\stanford\\stanford-ner.jar', 'edu.stanford.nlp.ie.crf.CRFClassifier', '-loadClassifier', 'X:\\stanford\\classifiers\\english.all.3class.distsim.crf.ser.gz', '-textFile', 'x:\\appdata\\local\\temp\\tmpqjsoma', '-outputFormat', 'slashTags', '-tokenizerFactory', 'edu.stanford.nlp.process.WhitespaceTokenizer', '-tokenizerOptions', '"tokenizeNLs=false"', '-encoding', 'utf8']

但是我可以看到slf4j jar在我的lib文件夹中.我需要更新环境变量吗?

but i can see that the slf4j jar is there in my lib folder. do i need to update an environment variable?

修改

感谢大家的帮助，但我仍然遇到同样的错误.这是我最近尝试过的

Thanks everyone for their help, but i still get the same error. Here is what i tried recently

import nltk
from nltk.tag import StanfordNERTagger 
print(nltk.__version__)
stanford_ner_dir = 'X:\\stanford\\'
eng_model_filename= stanford_ner_dir + 'classifiers\\english.all.3class.distsim.crf.ser.gz'
my_path_to_jar= stanford_ner_dir + 'stanford-ner.jar'
st = StanfordNERTagger(model_filename=eng_model_filename, path_to_jar=my_path_to_jar) 
print st._stanford_model
print st._stanford_jar

st.tag('Rami Eid is studying at Stony Brook University in NY'.split())

还有

import nltk
from nltk.tag import StanfordNERTagger 
print(nltk.__version__)
st = StanfordNERTagger('english.all.3class.distsim.crf.ser.gz') 
print st._stanford_model
print st._stanford_jar
st.tag('Rami Eid is studying at Stony Brook University in NY'.split())

我明白了

3.1
X:\stanford\classifiers\english.all.3class.distsim.crf.ser.gz
X:\stanford\stanford-ner.jar

之后，它继续打印与以前相同的堆栈跟踪. java.lang.ClassNotFoundException: org.slf4j.LoggerFactory

after that it goes on to print the same stacktrace as before. java.lang.ClassNotFoundException: org.slf4j.LoggerFactory

知道为什么会发生这种情况吗?我也更新了CLASSPATH.我什至将所有相关文件夹添加到PATH环境变量中，例如解压stanford jars的文件夹，解压缩slf4j的位置，甚至stanford文件夹中的lib文件夹.我不知道为什么会这样:(

any idea why this might be happening? I updated my CLASSPATH as well. I even added all the relevant folders to my PATH environment variable.for example the folder where i unzipped the stanford jars, the place where i unzipped slf4j and even the lib folder inside the stanford folder. i have no idea why this is happening :(

可能是Windows吗?我以前在Windows路径上遇到过问题

更新

  1. 我拥有的Stanford NER版本是3.6.0.压缩文件显示stanford-ner-2015-12-09.zip

我也尝试使用stanford-ner-3.6.0.jar而不是stanford-ner.jar，但仍然出现相同的错误

I also tried using the stanford-ner-3.6.0.jar instead of stanford-ner.jar but still get the same error

当我右键单击stanford-ner-3.6.0.jar时，我注意到

When i right click on the stanford-ner-3.6.0.jar, i notice

我可以看到我提取的所有文件，甚至是slf4j文件.这是否可能导致问题?

  1. 最后，为什么错误消息说

java.lang.NoClassDefFoundError: org/slf4j/LoggerFactory

我在任何地方都看不到任何名为org的文件夹

i do not see any folder named org anywhere

更新:环境变量

这是我的环境变量

CLASSPATH
.;
X:\jre1.8.0_60\lib\rt.jar;
X:\stanford\stanford-ner-3.6.0.jar;
X:\stanford\stanford-ner.jar;
X:\stanford\lib\slf4j-simple.jar;
X:\stanford\lib\slf4j-api.jar;
X:\slf4j\slf4j-1.7.13\slf4j-1.7.13\slf4j-log4j12-1.7.13.jar

STANFORD_MODELS
X:\stanford\classifiers

JAVA_HOME
X:\PROGRA~1\Java\JDK18~1.0_6

PATH
X:\PROGRA~1\Java\JDK18~1.0_6\bin;
X:\stanford;
X:\stanford\lib;
X:\slf4j\slf4j-1.7.13\slf4j-1.7.13

这里有什么问题吗?

推荐答案

已编辑

注意:以下答案仅适用于:

EDITED

Note: The following answer will only work on:

  • NLTK 3.1版
  • 斯坦福工具(Stanford Tools)，自2015年4月20日起编译

由于这两种工具的更改都非常快，并且API在3-6个月后看起来可能会非常不同.请将以下答案视为暂时性解决方案，而不是永恒的解决方案.

As both tools changes rather quickly and the API might look very different 3-6 months later. Please treat the following answer as temporal and not an eternal fix.

始终参考 https://github.com/nltk/nltk/wiki/Installing-Third-Party-Software 获取有关如何使用NLTK连接斯坦福NLP工具的最新说明！

Always refer to https://github.com/nltk/nltk/wiki/Installing-Third-Party-Software for the latest instruction on how to interface Stanford NLP tools using NLTK!!

首先使用将您的NLTK更新到版本3.1.

First update your NLTK to the version 3.1 using

pip install -U nltk

或(对于Windows)使用 http://pypi.python.org/pypi下载最新的NLTK /nltk

or (for Windows) download the latest NLTK using http://pypi.python.org/pypi/nltk

然后使用以下命令检查您是否拥有3.1版:

Then check that you have version 3.1 using:

python3 -c "import nltk; print(nltk.__version__)"

步骤2

然后从 http://nlp下载zip文件.stanford.edu/software/stanford-ner-2015-04-20.zip 并解压缩文件并保存到C:\some\path\to\stanford-ner\(在Windows中)

Step 2

Then download the zip file from http://nlp.stanford.edu/software/stanford-ner-2015-04-20.zip and unzip the file and save to C:\some\path\to\stanford-ner\ (In windows)

然后将CLASSPATH的环境变量设置为C:\some\path\to\stanford-ner\stanford-ner.jar

Then set the environment variable for CLASSPATH to C:\some\path\to\stanford-ner\stanford-ner.jar

和STANFORD_MODELS的环境变量 C:\some\path\to\stanford-ner\classifiers

或在命令行中(仅适用于Windows ):

set CLASSPATH=%CLASSPATH%;C:\some\path\to\stanford-ner\stanford-ner.jar
set STANFORD_MODELS=%STANFORD_MODELS%;C:\some\path\to\stanford-ner\classifiers

(请参阅 https://stackoverflow.com/a/17176423/610569 有关设置的Click-click GUI说明Windows中的环境变量)

(See https://stackoverflow.com/a/17176423/610569 for click-click GUI instructions for setting environment variables in Windows)

(有关在以下环境中设置环境变量的详细信息，请参见 Stanford Parser和NLTK Linux)

(See Stanford Parser and NLTK for details on setting environment variables in Linux)

然后在python中

>>> from nltk.tag import StanfordNERTagger
>>> st = StanfordNERTagger('english.all.3class.distsim.crf.ser.gz') 
>>> st.tag('Rami Eid is studying at Stony Brook University in NY'.split())
[(u'Rami', u'PERSON'), (u'Eid', u'PERSON'), (u'is', u'O'), (u'studying', u'O'), (u'at', u'O'), (u'Stony', u'ORGANIZATION'), (u'Brook', u'ORGANIZATION'), (u'University', u'ORGANIZATION'), (u'in', u'O'), (u'NY', u'O')]

不设置环境变量，您可以尝试:

Without setting the environment variables, you can try:

from nltk.tag import StanfordNERTagger

stanford_ner_dir = 'C:\\some\path\to\stanford-ner\'
eng_model_filename= stanford_ner_dir + 'classifiers\english.all.3class.distsim.crf.ser.gz'
my_path_to_jar= stanford_ner_dir + 'stanford-ner.jar'

st = StanfordNERTagger(model_filename=eng_model_filename, path_to_jar=my_path_to_jar) 
st.tag('Rami Eid is studying at Stony Brook University in NY'.split())

请参见 Stanford Parser和NLTK

这篇关于nltk StanfordNERTagger:NoClassDefFoundError:org/slf4j/LoggerFactory(在Windows中)的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！

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