... analysis has also flourished due to the proliferation of commercial applications This provides a strong motivation for research Secondly, it offers many challenging research problems, which had ... answer, spam, sentiment, objective, ranking from to level, which can serve as ground-truth for quantitative evaluation of latent aspect rating prediction 5.2 Sentiment Analysis with Subjectivity ... 5.2.3 Feature selection: Using the method: “Chi-Square test” extract the feature and we have 3200 strong feature Some features: 1- gram: đẹp, quá, hơn, ngon, bạn, nhưng, rất, thích, … 2- gram: sẽ_thích,...