**6.207/14.15: Networks Lecture 7: Search on ... - MIT Economics**

For any two nodes v and w, we de ne the distance between them d(v,w) as the number of grid steps between them, d((i,j), (k,l)) = jk ij+jl jj. Each node is connected to its 4 local neighbors directly { hislocal contacts. Each node also has a random edge to another node { hislong range contact.

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