Wang, Siyuan, Zhongyu Wei, Zhihao Fan, Yang Liu, and Xuanjing Huang. “A Multi-Agent Communication Framework for Question-Worthy Phrase Extraction and Question Generation”. Proceedings of the AAAI Conference on Artificial Intelligence 33, no. 01 (July 17, 2019): 7168-7175. Accessed April 16, 2021. https://ojs.aaai.org/index.php/AAAI/article/view/4700.