Categorical Probability Proportion Difference (CPPD): A Feature Selection Method for Sentiment Classification Basant Agarwal author Namita Mittal author 2012-12 text Proceedings of the 2nd Workshop on Sentiment Analysis where AI meets Psychology Sivaji Bandyopadhyay editor Manabu Okumura editor The COLING 2012 Organizing Committee Mumbai, India conference publication agarwal-mittal-2012-categorical https://aclanthology.org/W12-5303/ 2012-12 17 26