Personal connection factor function g(y i , y j ) : For the personal correlation factor function, we define it through the pairwise network structure.
if a person i and another person j have a personal relationship, we define a personal connection factor function as follows: (3) The personal connections are defined Section 4, i.e., co major, co univ, co title, and co corp. We define that if two persons have at least one personal connection edge, they have a personal relationship.