InfoMiner at WNUT-2020 Task 2: Transformer-based Covid-19 Informative Tweet Extraction Hansi Hettiarachchi author Tharindu Ranasinghe author 2020-11 text Proceedings of the Sixth Workshop on Noisy User-generated Text (W-NUT 2020) Wei Xu editor Alan Ritter editor Tim Baldwin editor Afshin Rahimi editor Association for Computational Linguistics Online conference publication hettiarachchi-ranasinghe-2020-infominer 10.18653/v1/2020.wnut-1.49 https://aclanthology.org/2020.wnut-1.49/ 2020-11 359 365