sielers : Feature Analysis and Polarity Classification of Expressions from Twitter and SMS Data Harshit Jain author Aditya Mogadala author Vasudeva Varma author 2013-06 text Second Joint Conference on Lexical and Computational Semantics (*SEM), Volume 2: Proceedings of the Seventh International Workshop on Semantic Evaluation (SemEval 2013) Suresh Manandhar editor Deniz Yuret editor Association for Computational Linguistics Atlanta, Georgia, USA conference publication jain-etal-2013-sielers https://aclanthology.org/S13-2087/ 2013-06 525 529