Proceedings of the Second Workshop on Simple and Efficient Natural Language Processing Nafise Sadat Moosavi editor Iryna Gurevych editor Angela Fan editor Thomas Wolf editor Yufang Hou editor Ana Marasović editor Sujith Ravi editor 2021-11 Association for Computational Linguistics Virtual text conference publication sustainlp-2021-simple https://aclanthology.org/2021.sustainlp-1.0/