Sentiment Classification Using Semantic Features Extracted from WordNet-based Resources Yoan Gutiérrez author Sonia Vázquez author Andrés Montoyo author 2011-06 text Proceedings of the 2nd Workshop on Computational Approaches to Subjectivity and Sentiment Analysis (WASSA 2.011) Alexandra Balahur editor Ester Boldrini editor Andres Montoyo editor Patricio Martinez-Barco editor Association for Computational Linguistics Portland, Oregon conference publication gutierrez-etal-2011-sentiment https://aclanthology.org/W11-1718/ 2011-06 139 145