배운 내용 nltk.sent_tokenize() nltk.word_tokenize() nltk.corpus.stopwords.words() nltk.stem.LancasterStemmer nltk.stem.WordNetLemmatizer TF-IDF CountVectorizer TfidfVectorizer scipy.sparse.coo_matrix() scipy.sparse.csr_matrix() re 모듈 wordnet.synsets() Synset.path_similarity() nltk.corpus.sentiwordnet SentiSynset.pos_score() SentiSynset.neg_score() SentiSynset.obj_score() SentimentIntensityAnalyzer S..