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調整使用自定義的tf-idf語料庫(set_idf_path)，可讀取有空格的英文詞彙 #679

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調整使用自定義的tf-idf語料庫(set_idf_path)，可讀取有空格的英文詞彙 #679

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5 changes: 4 additions & 1 deletion jieba/analyse/tfidf.py
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Original file line number Diff line number Diff line change
Expand Up @@ -4,6 +4,7 @@
import jieba
import jieba.posseg
from operator import itemgetter
import re

_get_module_path = lambda path: os.path.normpath(os.path.join(os.getcwd(),
os.path.dirname(__file__), path))
Expand Down Expand Up @@ -42,12 +43,14 @@ def __init__(self, idf_path=None):
self.set_new_path(idf_path)

def set_new_path(self, new_idf_path):
re_idf = re.compile('^(.+?)( [0-9,.]+)?$', re.U)
if self.path != new_idf_path:
self.path = new_idf_path
content = open(new_idf_path, 'rb').read().decode('utf-8')
self.idf_freq = {}
for line in content.splitlines():
word, freq = line.strip().split(' ')
word, freq = re_idf.match(line).groups()
# word, freq = line.strip().split(' ')
self.idf_freq[word] = float(freq)
self.median_idf = sorted(
self.idf_freq.values())[len(self.idf_freq) // 2]
Expand Down