Sentence Subjectivity Detection with Weakly-Supervised Learning Chenghua Lin author Yulan He author Richard Everson 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 lin-etal-2011-sentence https://aclanthology.org/I11-1129/ 2011-11 1153 1161