Classifying Message Board Posts with an Extracted Lexicon of Patient Attributes Ruihong Huang author Ellen Riloff author 2013-10 text Proceedings of the 2013 Conference on Empirical Methods in Natural Language Processing David Yarowsky editor Timothy Baldwin editor Anna Korhonen editor Karen Livescu editor Steven Bethard editor Association for Computational Linguistics Seattle, Washington, USA conference publication huang-riloff-2013-classifying https://aclanthology.org/D13-1162/ 2013-10 1557 1562