THU-HCSI at SemEval-2019 Task 3: Hierarchical Ensemble Classification of Contextual Emotion in Conversation Xihao Liang author Ye Ma author Mingxing Xu author 2019-06 text Proceedings of the 13th International Workshop on Semantic Evaluation Jonathan May editor Ekaterina Shutova editor Aurelie Herbelot editor Xiaodan Zhu editor Marianna Apidianaki editor Saif M Mohammad editor Association for Computational Linguistics Minneapolis, Minnesota, USA conference publication liang-etal-2019-thu 10.18653/v1/S19-2060 https://aclanthology.org/S19-2060/ 2019-06 345 349