We describe our contribution to the SemEVAl 2023 AfriSenti-SemEval shared task, where we tackle the task of sentiment analysis in 14 different African languages. We develop both monolingual and multilingual models under a full supervised setting (subtasks A and B). We also develop models for the zero-shot setting (subtask C). Our approach involves experimenting with transfer learning using six language models, including further pertaining of some of these models as well as a final finetuning stage. Our best performing models achieve an F1-score of 70.36 on development data and an F1-score of 66.13 on test data. Unsurprisingly, our results demonstrate the effectiveness of transfer learning and fine-tuning techniques for sentiment analysis across multiple languages. Our approach can be applied to other sentiment analysis tasks in different languages and domains.

该研究通过使用六种语言模型并采用迁移学习和微调技术，开发了用于14种不同非洲语言情感分析的多语言模型，最终在开发和测试数据中取得了F1得分。结果表明跨多种语言的情感分析可以通过迁移学习和微调技术实现，该方法可以应用于其他语言和领域的情感分析任务。

UBC-DLNLP参加SemEval-2023任务12：迁移学习对非洲情感分析的影响