7-Text Classification

Introduce two different methods to do text classification: Naive Bayes and Maximum Entropy 1. Introduction Application: spam detection (binary: spam / not spam) sentiment analysis (binary or multiway) review (pos / neg or 1-5 stars) political argument (pro / con, or pro / con / neutral) topic classification (multiway: sport / finance / travel, etc.) categorise the author native language identification diagnosis of disease gender, dialect, educational background, political, orientation Why not N-gram: