Gao, Lei, Yulong Wang, Tongcun Liu, Jingyu Wang, Lei Zhang, and Jianxin Liao. “Question-Driven Span Labeling Model for Aspect–Opinion Pair Extraction”. Proceedings of the AAAI Conference on Artificial Intelligence 35, no. 14 (May 18, 2021): 12875-12883. Accessed April 19, 2024. https://ojs.aaai.org/index.php/AAAI/article/view/17523.