RedPenNet for Grammatical Error Correction: Outputs to Tokens, Attentions to Spans Bohdan Didenko author Andrii Sameliuk author 2023-05 text Proceedings of the Second Ukrainian Natural Language Processing Workshop (UNLP) Mariana Romanyshyn editor Association for Computational Linguistics Dubrovnik, Croatia conference publication didenko-sameliuk-2023-redpennet 10.18653/v1/2023.unlp-1.15 https://aclanthology.org/2023.unlp-1.15/ 2023-05 121 131