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make extract_tags behavior compatiable with previous version

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This commit is contained in:
fxsjy 2015-02-14 21:23:58 +08:00
parent abcaf3e475
commit 49657c976d
1 changed files with 2 additions and 2 deletions
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4
jieba/analyse/__init__.py
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@ -60,14 +60,14 @@ def set_stop_words(stop_words_path):
for line in lines:
STOP_WORDS.add(line)
def extract_tags(sentence, topK=20, withWeight=False, allowPOS=['ns', 'n', 'vn', 'v']):
def extract_tags(sentence, topK=20, withWeight=False, allowPOS=[]):
"""
Extract keywords from sentence using TF-IDF algorithm.
Parameter:
- topK: return how many top keywords. `None` for all possible words.
- withWeight: if True, return a list of (word, weight);
if False, return a list of words.
- allowPOS: the allowed POS list eg. ['ns', 'n', 'vn', 'v'].
- allowPOS: the allowed POS list eg. ['ns', 'n', 'vn', 'v','nr'].
if the POS of w is not in this list,it will be filtered.
"""
global STOP_WORDS, idf_loader