摘要:
import nltk import numpy as np import re from nltk.corpus import stopwords # 1 分词1 text = "Sentiment analysis is a challenging subject in machine learning.\ People express their emotions in languag... 阅读全文
摘要:
1. CC Coordinating conjunction 连接词2. CD Cardinal number 基数词3. DT Determiner 限定词(如this,that,these,those,such,不定限定词:no,some,any,each,every,enough,either 阅读全文