CDHF at SemEval-2025 Task 9: A Multi-Task Learning Approach for Food Hazard Classification

Phuoc Chu


Abstract
We present our system in SemEval-2025 Task 9: Food Hazard Detection. Our approach focuses on multi-label classification of food recall titles into predefined hazard and product categories. We fine-tune pre-trained transformer models, comparing BERT and BART. Our results show that BART significantly outperforms BERT, achieving an F1-score of 0.8033 during development. However, in the final evaluation phase, our system obtained an F1-score of 0.7676, ranking 54th in Subtask 1. While our performance is not among the top, our findings highlight the importance of model choice in food hazard classification. Future work can explore additional improvements, such as ensemble methods and domain adaptation
Anthology ID:
2025.semeval-1.282
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
Note:
Pages:
2177–2182
Language:
URL:
https://preview.aclanthology.org/transition-to-people-yaml/2025.semeval-1.282/
DOI:
Bibkey:
Cite (ACL):
Phuoc Chu. 2025. CDHF at SemEval-2025 Task 9: A Multi-Task Learning Approach for Food Hazard Classification. In Proceedings of the 19th International Workshop on Semantic Evaluation (SemEval-2025), pages 2177–2182, Vienna, Austria. Association for Computational Linguistics.
Cite (Informal):
CDHF at SemEval-2025 Task 9: A Multi-Task Learning Approach for Food Hazard Classification (Chu, SemEval 2025)
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PDF:
https://preview.aclanthology.org/transition-to-people-yaml/2025.semeval-1.282.pdf