McGill-NLP at SemEval-2025 Task 11: Bridging the Gap in Text-Based Emotion Detection

Vivek Verma, David Ifeoluwa Adelani


Abstract
In this paper, we present the results of our SemEval-2025 Emotion Detection Shared Task Track A which focuses on multi-label emotion detection. Our team’s approach leverages prompting GPT-4o, fine-tuning NLLB- LLM2Vec encoder, and an ensemble of these two approaches to solve Track A. Our ensemble method beats the baseline method that fine-tuned RemBERT encoder in 24 of the 28 languages. Furthermore, our results shows that the average performance is much worse for under-resourced languages in the Afro- Asiatic, Niger-Congo and Austronesia with per- formance scores at 50 F1 points and below.
Anthology ID:
2025.semeval-1.235
Volume:
Proceedings of the 19th International Workshop on Semantic Evaluation (SemEval-2025)
Month:
July
Year:
2025
Address:
Vienna, Austria
Editors:
Sara Rosenthal, Aiala Rosá, Debanjan Ghosh, Marcos Zampieri
Venues:
SemEval | WS
SIG:
Publisher:
Association for Computational Linguistics
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Pages:
1783–1789
Language:
URL:
https://preview.aclanthology.org/transition-to-people-yaml/2025.semeval-1.235/
DOI:
Bibkey:
Cite (ACL):
Vivek Verma and David Ifeoluwa Adelani. 2025. McGill-NLP at SemEval-2025 Task 11: Bridging the Gap in Text-Based Emotion Detection. In Proceedings of the 19th International Workshop on Semantic Evaluation (SemEval-2025), pages 1783–1789, Vienna, Austria. Association for Computational Linguistics.
Cite (Informal):
McGill-NLP at SemEval-2025 Task 11: Bridging the Gap in Text-Based Emotion Detection (Verma & Adelani, SemEval 2025)
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https://preview.aclanthology.org/transition-to-people-yaml/2025.semeval-1.235.pdf