A POS-based Ensemble Model for Cross-domain Sentiment Classification Rui Xia author Chengqing Zong author 2011-11 text Proceedings of 5th International Joint Conference on Natural Language Processing Haifeng Wang editor David Yarowsky editor Asian Federation of Natural Language Processing Chiang Mai, Thailand conference publication xia-zong-2011-pos https://aclanthology.org/I11-1069/ 2011-11 614 622