Evidence-backed Fact Checking using RAG and Few-Shot In-Context Learning with LLMs

Ronit Singal, Pransh Patwa, Parth Patwa, Aman Chadha, Amitava Das


Abstract
Given the widespread dissemination of misinformation on social media, implementing fact-checking mechanisms for online claims is essential. Manually verifying every claim is very challenging, underscoring the need for an automated fact-checking system. This paper presents our system designed to address this issue. We utilize the Averitec dataset (Schlichtkrull et al., 2023) to assess the performance of our fact-checking system. In addition to veracity prediction, our system provides supporting evidence, which is extracted from the dataset. We develop a Retrieve and Generate (RAG) pipeline to extract relevant evidence sentences from a knowledge base, which are then inputted along with the claim into a large language model (LLM) for classification. We also evaluate the few-shot In-Context Learning (ICL) capabilities of multiple LLMs. Our system achieves an ‘Averitec’ score of 0.33, which is a 22% absolute improvement over the baseline. Our Code is publicly available on https://github.com/ronit-singhal/evidence-backed-fact-checking-using-rag-and-few-shot-in-context-learning-with-llms.
Anthology ID:
2024.fever-1.10
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:
91–98
Language:
URL:
https://aclanthology.org/2024.fever-1.10
DOI:
Bibkey:
Cite (ACL):
Ronit Singal, Pransh Patwa, Parth Patwa, Aman Chadha, and Amitava Das. 2024. Evidence-backed Fact Checking using RAG and Few-Shot In-Context Learning with LLMs. In Proceedings of the Seventh Fact Extraction and VERification Workshop (FEVER), pages 91–98, Miami, Florida, USA. Association for Computational Linguistics.
Cite (Informal):
Evidence-backed Fact Checking using RAG and Few-Shot In-Context Learning with LLMs (Singal et al., FEVER 2024)
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PDF:
https://aclanthology.org/2024.fever-1.10.pdf