UNIBA: Sentiment Analysis of English Tweets Combining Micro-blogging, Lexicon and Semantic Features Pierpaolo Basile author Nicole Novielli author 2015-06 text Proceedings of the 9th International Workshop on Semantic Evaluation (SemEval 2015) Preslav Nakov editor Torsten Zesch editor Daniel Cer editor David Jurgens editor Association for Computational Linguistics Denver, Colorado conference publication basile-novielli-2015-uniba 10.18653/v1/S15-2099 https://aclanthology.org/S15-2099/ 2015-06 595 600