Empirical topological investigation of practical supply chains based on complex networks
Liao Hao1, Shen Jing1, Wu Xing-Tong1, Chen Bo-Kui2, Zhou Mingyang1, †
       

(color online) Clustering results of spectral analysis, the same color represents a category. (a), (b) Clustering results using Lα when α = 0, 0.6; (c), (d) clustering results using Nα when α = 0.4, 1.