An Ensemble Method with Sentiment Features and Clustering Support Huy Tien Nguyen author Minh Le Nguyen author 2017-11 text Proceedings of the Eighth International Joint Conference on Natural Language Processing (Volume 1: Long Papers) Greg Kondrak editor Taro Watanabe editor Asian Federation of Natural Language Processing Taipei, Taiwan conference publication nguyen-nguyen-2017-ensemble https://aclanthology.org/I17-1065/ 2017-11 644 653