UPB at SemEval-2020 Task 9: Identifying Sentiment in Code-Mixed Social Media Texts Using Transformers and Multi-Task Learning George-Eduard Zaharia author George-Alexandru Vlad author Dumitru-Clementin Cercel author Traian Rebedea author Costin Chiru author 2020-12 text Proceedings of the Fourteenth Workshop on Semantic Evaluation Aurelie Herbelot editor Xiaodan Zhu editor Alexis Palmer editor Nathan Schneider editor Jonathan May editor Ekaterina Shutova editor International Committee for Computational Linguistics Barcelona (online) conference publication zaharia-etal-2020-upb 10.18653/v1/2020.semeval-1.179 https://aclanthology.org/2020.semeval-1.179/ 2020-12 1322 1330