arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2201.00987cs.CLcs.AIcs.SI

MDFEND: Multi-domain Fake News Detection

Key Lab of Intelligent Information Processing of Chinese Academy of Sciences (CAS), Institute of Computing Technology, CAS(中国科学院智能信息处理重点实验室,中国科学院计算技术研究所);University of Chinese Academy of Sciences(中国科学院大学);State Key Laboratory of Media Convergence Production Technology and Systems(媒体融合生产技术与系统国家重点实验室)

Qiong Nan, Juan Cao, Yongchun Zhu, Yanyan Wang, Jintao Li

英文摘要:

Fake news spread widely on social media in various domains, which lead to real-world threats in many aspects like politics, disasters, and finance. Most existing approaches focus on single-domain fake news detection (SFND), which leads to unsatisfying performance when these methods are applied to multi-domain fake news detection. As an emerging field, multi-domain fake news detection (MFND) is increasingly attracting attention. However, data distributions, such as word frequency and propagation patterns, vary from domain to domain, namely domain shift. Facing the challenge of serious domain shift, existing fake news detection techniques perform poorly for multi-domain scenarios. Therefore, it is demanding to design a specialized model for MFND. In this paper, we first design a benchmark of fake news dataset for MFND with domain label annotated, namely Weibo21, which consists of 4,488 fake news and 4,640 real news from 9 different domains. We further propose an effective Multi-domain Fake News Detection Model (MDFEND) by utilizing a domain gate to aggregate multiple representations extracted by a mixture of experts. The experiments show that MDFEND can significantly improve the performance of multi-domain fake news detection. Our dataset and code are available at https://github.com/kennqiang/MDFEND-Weibo21.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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