目录
下载数据
从以下地址下载中文维基百科数据:
处理bz2文件
使用以下命令处理bz2文件, 得到了大约23万多篇中文语料的text格式的语料:wiki.zh.text,大概750多M。
python process_wiki.py zhwiki-latest-pages-articles.xml.bz2 wiki.zh.text
process_wiki.py的代码如下,代码来自https://raw.githubusercontent.com/panyang/Wikipedia_Word2vec/master/v1/process_wiki.py:
#!/usr/bin/env python
# -*- coding: utf-8 -*-
# Author: Pan Yang (panyangnlp@gmail.com)
# Copyrigh 2017
from __future__ import print_function
import logging
import os.path
import six
import sys
from gensim.corpora import WikiCorpus
if __name__ == '__main__':
program = os.path.basename(sys.argv[0])
logger = logging.getLogger(program)
logging.basicConfig(format='%(asctime)s: %(levelname)s: %(message)s')
logging.root.setLevel(level=logging.INFO)
logger.info("running %s" % ' '.join(sys.argv))
# check and process input arguments
if len(sys.argv) != 3:
print("Using: python process_wiki.py enwiki.xxx.xml.bz2 wiki.en.text")
sys.exit(1)
inp, outp = sys.argv[1:3]
space = " "
i = 0
output = open(outp, 'w')
wiki = WikiCorpus(inp, lemmatize=False, dictionary={})
for text in wiki.get_texts():
if six.PY3:
output.write(bytes(' '.join(text), 'utf-8').decode('utf-8') + '\n')
# ###another method###
# output.write(
# space.join(map(lambda x:x.decode("utf-8"), text)) + '\n')
else:
output.write(space.join(text) + "\n")
i = i + 1
if (i % 10000 == 0):
logger.info("Saved " + str(i) + " articles")
output.close()
logger.info("Finished Saved " + str(i) + " articles")
繁转简
安装opencc,然后将wiki.zh.text中的繁体字转化位简体字,命令如下:
opencc -i wiki.zh.text -o wiki.zh.text.jian -c zht2zhs.ini