Voluntary Vaccination through Perceiving Epidemic Severity in Social Networks

Figure 7

The snapshots of individuals’ vaccinating possibilities in a scale-free network under (a) the local- mechanism, (b) the local- mechanism, (c) the global- mechanism, and (d) the RL-based mechanism. Nodes with larger size represent individuals with higher degrees. The yellow nodes stand for individuals with low vaccinating probability (), the blue nodes stand for individuals with middle vaccinating probability (), and the red nodes stand for individuals with high vaccinating probability (). The results are averaged over the last 500 epidemic seasons with the relative cost .

(a) The local- mechanism

(b) The local- mechanism

(c) The global-G mechanism

(d) The RL-based mechanism