CodeX: Combining an SVM Classifier and Character N-gram Language Models for Sentiment Analysis on Twitter Text Qi Han author Junfei Guo author Hinrich Schuetze 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 han-etal-2013-codex https://aclanthology.org/S13-2086/ 2013-06 520 524