HAMiSoN-Ensemble at ClimateActivism 2024: Ensemble of RoBERTa, Llama 2, and Multi-task for Stance Detection Raquel Rodriguez-Garcia author Julio Reyes Montesinos author Jesus M Fraile-Hernandez author Anselmo Peñas author 2024-03 text Proceedings of the 7th Workshop on Challenges and Applications of Automated Extraction of Socio-political Events from Text (CASE 2024) Ali Hürriyetoğlu editor Hristo Tanev editor Surendrabikram Thapa editor Gökçe Uludoğan editor Association for Computational Linguistics St. Julians, Malta conference publication rodriguez-garcia-etal-2024-hamison 10.18653/v1/2024.case-1.16 https://aclanthology.org/2024.case-1.16/ 2024-03 118 124