Skeleton and fractal scaling in complex networks.
We find that the fractal scaling in a class of scale-free networks originates from the underlying tree structure called a skeleton, a special type of spanning tree based on the edge betweenness centrality. The fractal skeleton has the property of the critical branching tree. The original fractal networks are viewed as a fractal skeleton dressed with local shortcuts. An in silico model with both the fractal scaling and the scale-invariance properties is also constructed. The framework of fractal networks is useful in understanding the utility and the redundancy in networked systems.
Goh
K-I
KI
School of Physics and Center for Theoretical Physics, Seoul National University, Seoul 151-747, Korea.
Salvi
G
G
Kahng
B
B
Kim
D
D
D004926:Escherichia coli / Q000737:chemistry; D017709:Fractals; D006801:Humans; D020407:Internet; D008962:Models, Theoretical; D011506:Proteins / Q000378:metabolism
D011506:Proteins