Evaluating the Utility of Appraisal Hierarchies as a Method for Sentiment Classification Jeremy Fletcher author Jon Patrick author 2005-12 text Proceedings of the Australasian Language Technology Workshop 2005 Timothy Baldwin editor James Curran editor Menno van Zaanen editor Sydney, Australia conference publication fletcher-patrick-2005-evaluating https://aclanthology.org/U05-1020/ 2005-12 134 142