Shu, Kai, Deepak Mahudeswaran, Suhang Wang, and Huan Liu. “Hierarchical Propagation Networks for Fake News Detection: Investigation and Exploitation”. Proceedings of the International AAAI Conference on Web and Social Media 14, no. 1 (May 26, 2020): 626-637. Accessed September 18, 2020. https://aaai.org/ojs/index.php/ICWSM/article/view/7329.