Bipolar Person Name Identification of Topic Documents Using Principal Component Analysis Chien Chin Chen author Chen-Yuan Wu author 2010-08 text Proceedings of the 23rd International Conference on Computational Linguistics (Coling 2010) Chu-Ren Huang editor Dan Jurafsky editor Coling 2010 Organizing Committee Beijing, China conference publication chen-wu-2010-bipolar https://aclanthology.org/C10-1020/ 2010-08 170 178