Early detection of fake news through integrating hypergraph-based multi-scale temporal and structural information
摘要
Recently, the number of fake news has been continuously increasing, and its concealment has been constantly enhanced, which poses a significant threat to social stability and public cognition. Therefore, achieving early detection of fake news is particularly important. However, existing methods often struggle to effectively capture the multi-scale temporal and structural features involved in the news dissemination process and the unique temporal dynamics of the dissemination process, thereby limiting the improvement of detection performance. To address this issue, we propose a novel early fake news detection model based on hypergraph—MTSHG. This model can comprehensively describe the complex interaction patterns among multi-dimensional entities such as users, news content, and social relationships during the news dissemination process by decomposing the hypergraph into multiple subgraphs. Additionally, we design a multi-level temporal and structural attention mechanism to extract dynamic information at different time scales and multi-level structural characteristics during the learning process. The experimental results show that our MTSHG model increases the accuracy of fake news detection by 2.46% to 4.77%, 0.72% to 0.93%, 0.46% to 1.49%, and 0.68% to 2.81% in the four real datasets PolitiFact, GossipCop, Pheme, and Weibo, and also demonstrates high accuracy in early detection. Our code is publicly available at https://github.com/kobeimissyou/MTSHG.