Towards Reliable Misinformation Mitigation: Generalization, Uncertainty, and GPT-4

Kellin Pelrine, Anne Imouza, Camille Thibault, Meilina Reksoprodjo, Caleb Gupta, Joel Christoph, Jean-François Godbout, Reihaneh Rabbany


Abstract
Misinformation poses a critical societal challenge, and current approaches have yet to produce an effective solution. We propose focusing on generalization, uncertainty, and how to leverage recent large language models, in order to create more practical tools to evaluate information veracity in contexts where perfect classification is impossible. We first demonstrate that GPT-4 can outperform prior methods in multiple settings and languages. Next, we explore generalization, revealing that GPT-4 and RoBERTa-large exhibit differences in failure modes. Third, we propose techniques to handle uncertainty that can detect impossible examples and strongly improve outcomes. We also discuss results on other language models, temperature, prompting, versioning, explainability, and web retrieval, each one providing practical insights and directions for future research. Finally, we publish the LIAR-New dataset with novel paired English and French misinformation data and Possibility labels that indicate if there is sufficient context for veracity evaluation. Overall, this research lays the groundwork for future tools that can drive real-world progress to combat misinformation.
Anthology ID:
2023.emnlp-main.395
Volume:
Proceedings of the 2023 Conference on Empirical Methods in Natural Language Processing
Month:
December
Year:
2023
Address:
Singapore
Editors:
Houda Bouamor, Juan Pino, Kalika Bali
Venue:
EMNLP
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
6399–6429
Language:
URL:
https://aclanthology.org/2023.emnlp-main.395
DOI:
10.18653/v1/2023.emnlp-main.395
Bibkey:
Cite (ACL):
Kellin Pelrine, Anne Imouza, Camille Thibault, Meilina Reksoprodjo, Caleb Gupta, Joel Christoph, Jean-François Godbout, and Reihaneh Rabbany. 2023. Towards Reliable Misinformation Mitigation: Generalization, Uncertainty, and GPT-4. In Proceedings of the 2023 Conference on Empirical Methods in Natural Language Processing, pages 6399–6429, Singapore. Association for Computational Linguistics.
Cite (Informal):
Towards Reliable Misinformation Mitigation: Generalization, Uncertainty, and GPT-4 (Pelrine et al., EMNLP 2023)
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PDF:
https://aclanthology.org/2023.emnlp-main.395.pdf
Video:
 https://aclanthology.org/2023.emnlp-main.395.mp4