Sentiment Analysis: How to Derive Prior Polarities from SentiWordNet Marco Guerini author Lorenzo Gatti author Marco Turchi 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 guerini-etal-2013-sentiment https://aclanthology.org/D13-1125/ 2013-10 1259 1269