Abstract
As the basic mechanism of network information dissemination in online socialisation, rumours have had a significant impact on people's lives. In this paper, a SIR-based rumour propagation model is introduced, which gives the probability expression of the user's chosen role in the social network. And on this basis, the propagation process of rumours in the network is analysed and combined with the behaviour characteristics that users may present to conduct data simulation and explore the connection between users and rumours. In order to test the rationality of the SIR model, the real rumour propagation data in the network is introduced, and then the difference between the rumour propagation process and the real situation obtained by the comparative model analysis is analysed.
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