Investigating label suggestions for opinion mining in German Covid-19 social media Tilman Beck author Ji-Ung Lee author Christina Viehmann author Marcus Maurer author Oliver Quiring author Iryna Gurevych author 2021-08 text Proceedings of the 59th Annual Meeting of the Association for Computational Linguistics and the 11th International Joint Conference on Natural Language Processing (Volume 1: Long Papers) Chengqing Zong editor Fei Xia editor Wenjie Li editor Roberto Navigli editor Association for Computational Linguistics Online conference publication beck-etal-2021-investigating 10.18653/v1/2021.acl-long.1 https://aclanthology.org/2021.acl-long.1/ 2021-08 1 13