Collaborative Evolution: Multi-Round Learning Between Large and Small Language Models for Emergent Fake News Detection

• URL: http://arxiv.org/abs/2503.21127v1
• Date: Thu, 27 Mar 2025 03:39:26 GMT
• Title: Collaborative Evolution: Multi-Round Learning Between Large and Small Language Models for Emergent Fake News Detection
• Authors: Ziyi Zhou, Xiaoming Zhang, Shenghan Tan, Litian Zhang, Chaozhuo Li,
• Abstract summary: Large language models (LLMs) have fallen short in effectively identifying fake news due to a lack of pertinent demonstrations and the dynamic nature of knowledge.<n>In this paper, a novel framework Multi-Round Collaboration Detection (MRCD) is proposed to address these limitations.<n>Our framework MRCD achieves SOTA results on two real-world datasets Pheme and Twitter16, with accuracy improvements of 7.4% and 12.8% compared to using only SLMs.
• Score: 12.65676695802598
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: The proliferation of fake news on social media platforms has exerted a substantial influence on society, leading to discernible impacts and deleterious consequences. Conventional deep learning methodologies employing small language models (SLMs) suffer from the necessity for extensive supervised training and the challenge of adapting to rapidly evolving circumstances. Large language models (LLMs), despite their robust zero-shot capabilities, have fallen short in effectively identifying fake news due to a lack of pertinent demonstrations and the dynamic nature of knowledge. In this paper, a novel framework Multi-Round Collaboration Detection (MRCD) is proposed to address these aforementioned limitations. The MRCD framework is capable of enjoying the merits from both LLMs and SLMs by integrating their generalization abilities and specialized functionalities, respectively. Our approach features a two-stage retrieval module that selects relevant and up-to-date demonstrations and knowledge, enhancing in-context learning for better detection of emerging news events. We further design a multi-round learning framework to ensure more reliable detection results. Our framework MRCD achieves SOTA results on two real-world datasets Pheme and Twitter16, with accuracy improvements of 7.4\% and 12.8\% compared to using only SLMs, which effectively addresses the limitations of current models and improves the detection of emergent fake news.

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