How to tackle an emerging topic? Combining strong and weak labels for Covid news NER Aleksander Ficek author Fangyu Liu author Nigel Collier author 2022-11 text Proceedings of the 2nd Conference of the Asia-Pacific Chapter of the Association for Computational Linguistics and the 12th International Joint Conference on Natural Language Processing (Volume 2: Short Papers) Yulan He editor Heng Ji editor Sujian Li editor Yang Liu editor Chua-Hui Chang editor Association for Computational Linguistics Online only conference publication ficek-etal-2022-tackle 10.18653/v1/2022.aacl-short.60 https://aclanthology.org/2022.aacl-short.60/ 2022-11 488 496