Figure 1

Contact networks structure. (a) Schematic diagram of sub-networks and contact network, taking two base stations as an example. Note that this figure only shows the trajectory simulation of two high-risk individuals and seven general individuals during two time slices, but in fact, each contact network is composed of \(24/\tau\) sub-networks of all base stations. (b) Visualization of individual-centered contact feature sequence transformation. Before learning the transmission risk, the model takes each individual as an observation object and extracts the contact information of the adjacent nodes from the contact networks within \(T_{virus}\).