Wang, Shuohang, Yunshi Lan, Yi Tay, Jing Jiang, and Jingjing Liu. 2020. “Multi-Level Head-Wise Match and Aggregation in Transformer for Textual Sequence Matching”. Proceedings of the AAAI Conference on Artificial Intelligence 34 (05):9209-16. https://doi.org/10.1609/aaai.v34i05.6458.