Fig. 5

Eigenvector centrality: Effect of minors. Evolution of the a number of majors and b number of minors of economics, international studies, language and culture studies, and political science from 2004–2013. For the same years, the eigenvector centralities of each department using ω _cen=5 and minor parameters c α=0.05, d 0.35 e α=0.65, and f 0.95