NCL-AR at SemEval-2025 Task 7: A Sieve Filtering Approach to Refute the Misinformation within Harmful Social Media Posts

Alex Robertson, Huizhi(elly) Liang


Abstract
In this paper, we propose a sieve filtering-based approach that can retrieve facts to invalidate claims made in social media posts. The fact filters are initially coarse-grained, based on the original language of the social media posts, and end with fine-grained filters based on the exact time frame in which the posts were uploaded online. This streamlined approach achieved a 0.883 retrieval success rate in the monolingual task while maintaining a scalable efficiency level of processing a social media post per 0.07 seconds.
Anthology ID:
2025.semeval-1.44
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:
308–313
Language:
URL:
https://preview.aclanthology.org/corrections-2025-08/2025.semeval-1.44/
DOI:
Bibkey:
Cite (ACL):
Alex Robertson and Huizhi(elly) Liang. 2025. NCL-AR at SemEval-2025 Task 7: A Sieve Filtering Approach to Refute the Misinformation within Harmful Social Media Posts. In Proceedings of the 19th International Workshop on Semantic Evaluation (SemEval-2025), pages 308–313, Vienna, Austria. Association for Computational Linguistics.
Cite (Informal):
NCL-AR at SemEval-2025 Task 7: A Sieve Filtering Approach to Refute the Misinformation within Harmful Social Media Posts (Robertson & Liang, SemEval 2025)
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PDF:
https://preview.aclanthology.org/corrections-2025-08/2025.semeval-1.44.pdf