Читать книгу Intelligent Data Analytics for Terror Threat Prediction - Группа авторов - Страница 39

SIR model is one of the simplest diffusion models. It has three states where S stands for number of susceptible, I for number of infectious, and R for number of recovered or removed. Total number of people is considered collectively from these three states susceptible, infected, and recovered [15].

Figure 1.9 SIS model.

Figure 1.10 SIR model.

In social networks, once rumor is diffused and received by any user he/she becomes infectious if doesn’t know truth about rumor. If they knew truth, he/she recover by ignoring rumor or not passing to neighbors. This is ignored in SI and SIS models. Recovery from rumors is only between SIR and SIS models. Figure 1.10 shows how users are transforming from one state to other.