Fact or Fiction? Improving Fact Verification with Knowledge Graphs through Simplified Subgraph Retrievals

Tobias Aanderaa Opsahl


Abstract
Despite recent success in natural language processing (NLP), fact verification still remains a difficult task. Due to misinformation spreading increasingly fast, attention has been directed towards automatically verifying the correctness of claims. In the domain of NLP, this is usually done by training supervised machine learning models to verify claims by utilizing evidence from trustworthy corpora. We present efficient methods for verifying claims on a dataset where the evidence is in the form of structured knowledge graphs. We use the FactKG dataset, which is constructed from the DBpedia knowledge graph extracted from Wikipedia. By simplifying the evidence retrieval process, from fine-tuned language models to simple logical retrievals, we are able to construct models that both require less computational resources and achieve better test-set accuracy.
Anthology ID:
2024.fever-1.32
Volume:
Proceedings of the Seventh Fact Extraction and VERification Workshop (FEVER)
Month:
November
Year:
2024
Address:
Miami, Florida, USA
Editors:
Michael Schlichtkrull, Yulong Chen, Chenxi Whitehouse, Zhenyun Deng, Mubashara Akhtar, Rami Aly, Zhijiang Guo, Christos Christodoulopoulos, Oana Cocarascu, Arpit Mittal, James Thorne, Andreas Vlachos
Venue:
FEVER
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
307–316
Language:
URL:
https://aclanthology.org/2024.fever-1.32
DOI:
Bibkey:
Cite (ACL):
Tobias Aanderaa Opsahl. 2024. Fact or Fiction? Improving Fact Verification with Knowledge Graphs through Simplified Subgraph Retrievals. In Proceedings of the Seventh Fact Extraction and VERification Workshop (FEVER), pages 307–316, Miami, Florida, USA. Association for Computational Linguistics.
Cite (Informal):
Fact or Fiction? Improving Fact Verification with Knowledge Graphs through Simplified Subgraph Retrievals (Opsahl, FEVER 2024)
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PDF:
https://aclanthology.org/2024.fever-1.32.pdf