@inproceedings{lin-etal-2006-side, title = "Which Side are You on? Identifying Perspectives at the Document and Sentence Levels", author = "Lin, Wei-Hao and Wilson, Theresa and Wiebe, Janyce and Hauptmann, Alexander", editor = "M{\`a}rquez, Llu{\'i}s and Klein, Dan", booktitle = "Proceedings of the Tenth Conference on Computational Natural Language Learning ({C}o{NLL}-X)", month = jun, year = "2006", address = "New York City", publisher = "Association for Computational Linguistics", url = "https://aclanthology.org/W06-2915/", pages = "109--116" }