Chen, Xiuying, Daorui Xiao, Shen Gao, Guojun Liu, Wei Lin, Bo Zheng, Dongyan Zhao, and Rui Yan. “RPM-Oriented Query Rewriting Framework for E-Commerce Keyword-Based Sponsored Search (Student Abstract)”. Proceedings of the AAAI Conference on Artificial Intelligence 34, no. 10 (April 3, 2020): 13769-13770. Accessed October 17, 2021. https://ojs.aaai.org/index.php/AAAI/article/view/7156.