HOMADOS at SemEval-2021 Task 6: Multi-Task Learning for Propaganda Detection Konrad Kaczyński author Piotr Przybyła author 2021-08 text Proceedings of the 15th International Workshop on Semantic Evaluation (SemEval-2021) Alexis Palmer editor Nathan Schneider editor Natalie Schluter editor Guy Emerson editor Aurelie Herbelot editor Xiaodan Zhu editor Association for Computational Linguistics Online conference publication kaczynski-przybyla-2021-homados 10.18653/v1/2021.semeval-1.141 https://aclanthology.org/2021.semeval-1.141/ 2021-08 1027 1031