1. College of Computer and Data Science, Fuzhou University, Fuzhou 350108 2. Fujian Provincial Key Laboratory of Networking Computing and Intelligent Information Processing, Fuzhou University, Fuzhou 350108 3. Digital Fujian Institute of Financial Big Data, Fuzhou University, Fuzhou 350108 4. College of Electronics and Information Science, Fujian Jiangxa University, Fuzhou 350108 5. Research Center for Cyberspace Security, Peng Cheng Laboratory, Shenzhen 518000
Abstract：The existing information diffusion prediction methods model the cascade sequences and topological structure independently. And thus it is difficult to learn the interactive expression of cascade temporal and structural features in the embedded space, and the portrayal of dynamic evolution of information diffusion is insufficient. Aiming at this problem, an information diffusion prediction method based on cascade spatial-temporal feature is proposed. Based on the social network and diffusion paths, the heterogeneous graphs are constructed. The structural context of nodes of heterogeneous graphs and social network is learned by graph neural network, while the cascade temporal feature is captured by gated recurrent unit. To make microscopic information prediction, the cascade spatial-temporal feature is constructed by fusing structure context and temporal feature. The experimental results on Twitter and Memes datasets demonstrate that the performance of the proposed method is improved to a certain extent.
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2021, Vol. 34 
