Multi-task Learning in Argument Mining for Persuasive Online Discussions Nhat Tran author Diane Litman author 2021-11 text Proceedings of the 8th Workshop on Argument Mining Khalid Al-Khatib editor Yufang Hou editor Manfred Stede editor Association for Computational Linguistics Punta Cana, Dominican Republic conference publication tran-litman-2021-multi 10.18653/v1/2021.argmining-1.15 https://aclanthology.org/2021.argmining-1.15/ 2021-11 148 153