DictVectorizer, CountVectorizer, pad_sequences, Okt, ngrams, TfidfVectorizer, TFIDF
cosine_similarity, euclidean_distances, manhattan_distances
[txt, file] load, colab_google.drive_mount, file delete, perceptron, XOR
시각화
matplotlib
text = "A barber is a person. a barber is good person. "