ABCD Team at SemEval-2023 Task 12: An Ensemble Transformer-based System for African Sentiment Analysis Dang Thin author Dai Nguyen author Dang Qui author Duong Hao author Ngan Nguyen author 2023-07 text Proceedings of the 17th International Workshop on Semantic Evaluation (SemEval-2023) Atul Kr. Ojha editor A Seza Doğruöz editor Giovanni Da San Martino editor Harish Tayyar Madabushi editor Ritesh Kumar editor Elisa Sartori editor Association for Computational Linguistics Toronto, Canada conference publication thin-etal-2023-abcd 10.18653/v1/2023.semeval-1.44 https://aclanthology.org/2023.semeval-1.44/ 2023-07 324 330