@InProceedings{lin-EtAl:2006:CoNLL-X, author = {Lin, Wei-Hao and Wilson, Theresa and Wiebe, Janyce and Hauptmann, Alexander}, title = {Which Side are You on? Identifying Perspectives at the Document and Sentence Levels}, booktitle = {Proceedings of the Tenth Conference on Computational Natural Language Learning (CoNLL-X)}, month = {June}, year = {2006}, address = {New York City}, publisher = {Association for Computational Linguistics}, pages = {109--116}, url = {http://www.aclweb.org/anthology/W/W06/W06-2915} }