NRC-Canada-2014: Recent Improvements in the Sentiment Analysis of Tweets Xiaodan Zhu author Svetlana Kiritchenko author Saif Mohammad author 2014-08 text Proceedings of the 8th International Workshop on Semantic Evaluation (SemEval 2014) Preslav Nakov editor Torsten Zesch editor Association for Computational Linguistics Dublin, Ireland conference publication zhu-etal-2014-nrc 10.3115/v1/S14-2077 https://aclanthology.org/S14-2077/ 2014-08 443 447