Sentiment Classification using Rough Set based Hybrid Feature Selection Basant Agarwal author Namita Mittal author 2013-06 text Proceedings of the 4th Workshop on Computational Approaches to Subjectivity, Sentiment and Social Media Analysis Alexandra Balahur editor Erik van der Goot editor Andres Montoyo editor Association for Computational Linguistics Atlanta, Georgia conference publication agarwal-mittal-2013-sentiment https://aclanthology.org/W13-1616/ 2013-06 115 119