Accurately predicting the future popularity of information cascades is crucial for various applications, but existing methods often oversimplify the continuous-time dynamics of the underlying diffusion process. This work proposes ConCat, a model that leverages neural Ordinary Differential Equations and neural Temporal Point Processes to effectively capture both the continuous-time dynamics and the global trend of information cascades, leading to superior performance in popularity prediction.
CasFT leverages observed information cascades and dynamic cues extracted via neural ODEs to guide the generation of future popularity-increasing trends through a diffusion model, which are then combined with the spatiotemporal patterns in the observed information cascade to make the final popularity prediction.