Time-Varying Spatial Memory Model and Its Impact on Virus Spreading

Figure 2

Schematic illustration of epidemic spreading on the TSM model. When a susceptible (S) individual and an infected (I) one meet, the susceptible may become exposed (E) with probability . If an exposed individual contacts with a susceptible one, the susceptible individual will become an exposed one with probability ; each time, exposed individuals turn infectious with probability and the infectious individuals become recovered individuals with probability . T1 means the first time step, T2 means the second time step, and so on. 25 nodes are taken as examples in the illustration. The distribution of activity follows power-law distribution, as some nodes are often active, while others are rarely active.