A Study on the Relationship between Connecting Different Types of Nodes and Disassortativity by Degree

Figure 4

𝑘_nn(𝑁−1)<𝑘_nn(𝑁−1+𝑚₁)<𝑘_nn(𝑁−1+𝑚₂), but 𝑘_nn(l)≫𝑘_nn(𝑁−1+𝑚₂).