Finding the needle in a haystack: Extraction of Informative COVID-19 Danish Tweets Benjamin Olsen author Barbara Plank author 2021-11 text Proceedings of the Seventh Workshop on Noisy User-generated Text (W-NUT 2021) Wei Xu editor Alan Ritter editor Tim Baldwin editor Afshin Rahimi editor Association for Computational Linguistics Online conference publication olsen-plank-2021-finding 10.18653/v1/2021.wnut-1.2 https://aclanthology.org/2021.wnut-1.2/ 2021-11 11 19