Debunking Rumors on Twitter with Tree Transformer Jing Ma author Wei Gao author 2020-12 text Proceedings of the 28th International Conference on Computational Linguistics Donia Scott editor Nuria Bel editor Chengqing Zong editor International Committee on Computational Linguistics Barcelona, Spain (Online) conference publication ma-gao-2020-debunking 10.18653/v1/2020.coling-main.476 https://aclanthology.org/2020.coling-main.476/ 2020-12 5455 5466