Guimarães, A., and G. Weikum. “X-Posts Explained: Analyzing and Predicting Controversial Contributions in Thematically Diverse Reddit Forums”. Proceedings of the International AAAI Conference on Web and Social Media, vol. 15, no. 1, May 2021, pp. 163-72, doi:10.1609/icwsm.v15i1.18050.