Fig. 5From: Development of a patients’ satisfaction analysis system using machine learning and lexicon-based methodsPrecision-Recall curve of MNB in combination with MF + TFIDF and SFM (A), SKB (B), and VT + SKB (C), AB + MF + TFIDF + SKB (D). AB: AdaBoost, MNB: Multinomial Naïve Bayes (MNB), TFIDF: term frequency–inverse document frequency, MF: multi-feature, SFM: SelectFromModel, SKB: SelectKBestBack to article page