dictionary - 同义词词典

Question

可用于自然语言处理的词典很少。如正面、负面词汇词典等。

是否有任何可用的字典包含所有字典单词的同义词列表？

喜欢 nice

synonyms: enjoyable, pleasant, pleasurable, agreeable, delightful, satisfying, gratifying, acceptable, to one's liking, entertaining, amusing, diverting, marvellous, good; 

Answer 1

虽然 WordNet 是开始查找同义词的好资源，但必须注意它的局限性，这里是 NLTK 中的 Python API 示例。图书馆:

首先，单词有多种含义(即意义):

>>> from nltk.corpus import wordnet as wn
>>> wn.synsets('nice')
[Synset('nice.n.01'), Synset('nice.a.01'), Synset('decent.s.01'), Synset('nice.s.03'), Synset('dainty.s.04'), Synset('courteous.s.01')]

要获得单词的正确含义，您需要知道给定上下文的单词的正确含义。

>>> wn.synset('nice.a.01').definition()
u'pleasant or pleasing or agreeable in nature or appearance'

您可以尝试 Word Sense Disambiguation 软件，但它们并不完美(请参阅 Anyone know of some good Word Sense Disambiguation software? )。即使你知道这个词的意思，wordnet的词条也是有限的。你不能期望太多:

>>> wn.synset('nice.a.01').lemma_names()
[u'nice']
>>> wn.synset('nice.a.01').similar_tos()
[Synset('good.s.06'), Synset('pleasant.s.02')]
>>> [i.lemma_names() for i in wn.synset('nice.a.01').similar_tos()]
[[u'good'], [u'pleasant']]