FactFinders at CheckThat! 2024: Refining Check-worthy Statement Detection with LLMs through Data Pruning

• URL: http://arxiv.org/abs/2406.18297v1
• Date: Wed, 26 Jun 2024 12:31:31 GMT
• Title: FactFinders at CheckThat! 2024: Refining Check-worthy Statement Detection with LLMs through Data Pruning
• Authors: Yufeng Li, Rrubaa Panchendrarajan, Arkaitz Zubiaga,
• Abstract summary: This study investigates the application of open-source language models to identify check-worthy statements from political transcriptions. We propose a two-step data pruning approach to automatically identify high-quality training data instances for effective learning. Our team ranked first in the check-worthiness estimation task in the English language.
• Score: 43.82613670331329
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: The rapid dissemination of information through social media and the Internet has posed a significant challenge for fact-checking, among others in identifying check-worthy claims that fact-checkers should pay attention to, i.e. filtering claims needing fact-checking from a large pool of sentences. This challenge has stressed the need to focus on determining the priority of claims, specifically which claims are worth to be fact-checked. Despite advancements in this area in recent years, the application of large language models (LLMs), such as GPT, has only recently drawn attention in studies. However, many open-source LLMs remain underexplored. Therefore, this study investigates the application of eight prominent open-source LLMs with fine-tuning and prompt engineering to identify check-worthy statements from political transcriptions. Further, we propose a two-step data pruning approach to automatically identify high-quality training data instances for effective learning. The efficiency of our approach is demonstrated through evaluations on the English language dataset as part of the check-worthiness estimation task of CheckThat! 2024. Further, the experiments conducted with data pruning demonstrate that competitive performance can be achieved with only about 44\% of the training data. Our team ranked first in the check-worthiness estimation task in the English language.

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