Instant Messaging Platforms News Multi-Task Classification for Stance, Sentiment, and Discrimination Detection Taras Ustyianovych author Denilson Barbosa author 2024-05 text Proceedings of the Third Ukrainian Natural Language Processing Workshop (UNLP) @ LREC-COLING 2024 Mariana Romanyshyn editor Nataliia Romanyshyn editor Andrii Hlybovets editor Oleksii Ignatenko editor ELRA and ICCL Torino, Italia conference publication ustyianovych-barbosa-2024-instant https://aclanthology.org/2024.unlp-1.5/ 2024-05 30 40