SemEval-2014 Task 9: Sentiment Analysis in Twitter Sara Rosenthal author Alan Ritter author Preslav Nakov author Veselin Stoyanov 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 rosenthal-etal-2014-semeval 10.3115/v1/S14-2009 https://aclanthology.org/S14-2009/ 2014-08 73 80