DSC-IIT ISM at WNUT-2020 Task 2: Detection of COVID-19 informative tweets using RoBERTa Sirigireddy Dhana Laxmi author Rohit Agarwal author Aman Sinha 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 dhana-laxmi-etal-2020-dsc 10.18653/v1/2020.wnut-1.58 https://aclanthology.org/2020.wnut-1.58/ 2020-11 409 413