LoReFact: Bridging the Logic Gap in Fact-Checking

Qiming Xie, Wenjie Zheng, Xiangqing Shen, Rui Xia


Abstract
The rise of social media and generative AI has led to a surge of misinformation online, making reliable fact-checking increasingly critical.Most existing fact-checking research adheres to the decompose-then-verify paradigm, emphasizing verification of individual facts while overlooking the validity of logical dependencies among them. As a result, text containing logical errors may still be misjudged as factual. Moreover, existing datasets and metrics focus on fact completeness and coverage, failing to capture the logical dimension.To help bridge this gap, we propose a content–logic coupled factuality evaluation paradigm, which conceptualizes factuality along two complementary dimensions: content factuality and logic factuality. Under this paradigm, we introduce a holistic solution consisting of LoReFact, the first long-form fact-checking dataset that systematically incorporates the logical dimension; LoRe-Factcheck, a simple yet effective framework for joint content–logic evaluation; and a logic-aware metric named LoReFactScore for exposing and penalizing logical fallacies.Experiments demonstrate the importance of logical factuality and the effectiveness of our proposed paradigm for fact-checking.[Our data and code are publicly available at https://github.com/NUSTM/LoReFact]
Anthology ID:
2026.findings-acl.346
Volume:
Findings of the Association for Computational Linguistics: ACL 2026
Month:
July
Year:
2026
Address:
San Diego, California, United States
Editors:
Maria Liakata, Viviane P. Moreira, Jiajun Zhang, David Jurgens
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Findings
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Publisher:
Association for Computational Linguistics
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Pages:
6974–6996
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URL:
https://preview.aclanthology.org/ingest-acl/2026.findings-acl.346/
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Cite (ACL):
Qiming Xie, Wenjie Zheng, Xiangqing Shen, and Rui Xia. 2026. LoReFact: Bridging the Logic Gap in Fact-Checking. In Findings of the Association for Computational Linguistics: ACL 2026, pages 6974–6996, San Diego, California, United States. Association for Computational Linguistics.
Cite (Informal):
LoReFact: Bridging the Logic Gap in Fact-Checking (Xie et al., Findings 2026)
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