(2015) extend Barabási and Albert (1999)'s preferential attachment model that was originally based on the "rich-get-richer" feedback mechanism to a biased preferential attachment model of mentor-mentee dynamics, G(n, f, p), where there further is (1) a minority-majority partition (the proportion of female nodes is less than half, f < 1 2 ) and (2) homophily.
in what remains of our study, we discard these latter authors.