AAST-NLP at ClimateActivism 2024: Ensemble-Based Climate Activism Stance and Hate Speech Detection : Leveraging Pretrained Language Models

Ahmed El-Sayed, Omar Nasr


Abstract
Climate activism has emerged as a powerful force in addressing the urgent challenges posed by climate change. Individuals and organizations passionate about environmental issues use platforms like Twitter to mobilize support, share information, and advocate for policy changes. Unfortunately, amidst the passionate discussions, there has been an unfortunate rise in the prevalence of hate speech on the platform. Some users resort to personal attacks and divisive language, undermining the constructive efforts of climate activists. In this paper, we describe our approaches for three subtasks of ClimateActivism at CASE 2024. For all the three subtasks, we utilize pretrained language models enhanced by ensemble learning. Regarding the second subtask, dedicated to target detection, we experimented with incorporating Named Entity Recognition in the pipeline. Additionally, our models secure the second, third and fifth ranks in the three subtasks respectively.
Anthology ID:
2024.case-1.14
Volume:
Proceedings of the 7th Workshop on Challenges and Applications of Automated Extraction of Socio-political Events from Text (CASE 2024)
Month:
March
Year:
2024
Address:
St. Julians, Malta
Editors:
Ali Hürriyetoğlu, Hristo Tanev, Surendrabikram Thapa, Gökçe Uludoğan
Venues:
CASE | WS
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
105–110
Language:
URL:
https://aclanthology.org/2024.case-1.14
DOI:
Bibkey:
Cite (ACL):
Ahmed El-Sayed and Omar Nasr. 2024. AAST-NLP at ClimateActivism 2024: Ensemble-Based Climate Activism Stance and Hate Speech Detection : Leveraging Pretrained Language Models. In Proceedings of the 7th Workshop on Challenges and Applications of Automated Extraction of Socio-political Events from Text (CASE 2024), pages 105–110, St. Julians, Malta. Association for Computational Linguistics.
Cite (Informal):
AAST-NLP at ClimateActivism 2024: Ensemble-Based Climate Activism Stance and Hate Speech Detection : Leveraging Pretrained Language Models (El-Sayed & Nasr, CASE-WS 2024)
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PDF:
https://aclanthology.org/2024.case-1.14.pdf
Supplementary material:
 2024.case-1.14.SupplementaryMaterial.txt