Integrating Knowledge for Subjectivity Sense Labeling Yaw Gyamfi author Janyce Wiebe author Rada Mihalcea author Cem Akkaya author 2009-06 text Proceedings of Human Language Technologies: The 2009 Annual Conference of the North American Chapter of the Association for Computational Linguistics Mari Ostendorf editor Michael Collins editor Shri Narayanan editor Douglas W Oard editor Lucy Vanderwende editor Association for Computational Linguistics Boulder, Colorado conference publication gyamfi-etal-2009-integrating https://aclanthology.org/N09-1002/ 2009-06 10 18