Figure 2
From: Trading contact tracing efficiency for finding patient zero
Tracing process for different values of the breadth parameter \(\beta _{tr}\) in Watts–Strogatz networks. The first row presents an example of a single simulation of a tracing process in a network with 200 nodes and a budget of \(b=10\). The columns correspond to \(\beta _{tr}=1\), \(\beta _{tr}=5\), and \(\beta _{tr}=10\). The source is represented as the square node in the center. The four inner rings of nodes contain nodes that got infected in the first, second, third, and fourth week, with rings further from the middle corresponding to infections later. Red nodes are infected after 28 days. Blue nodes are recovered. A vivid color indicates that the node got detected by the tracing process for the given value of \(\beta _{tr}\), and a muted color indicates that the node never got detected (see the legend of the figure). The outer ring contains nodes that never got infected (marked white). The second row presents results for networks with 10,000 nodes and tracing budget \(b=100\), aggregated over 1000 simulation runs. The middle circle represents the diffusion source, while the colored rings represent nodes in the first, second, third, and fourth week, with rings further from the middle corresponding to infections later. The columns correspond to \(\beta _{tr}=1\), \(\beta _{tr}=30\), and \(\beta _{tr}=100\).
