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Network models Properties common to many large-scale networks, independently of
 

Summary: Network models
Properties common to many large-scale networks, independently of
their origin and function:
1 Th d d b t di t ib ti d i1. The degree and betweenness distribution are decreasing
functions, usually power-laws.
2. The distances scale logarithmically with the network size
scale - free
g y
klog
Nlog
l small world
3. The clustering coefficient does not seem to depend on the
network size, and is larger than the clustering coefficient of
comparable random graphscomparable random graphs
There are two model families proposed to explain these properties:
Small world network models and scale-free network models.
Benchmark 1: regular lattices
One-dimensional lattice: constCconstkNl == ,,
2/1
NLl

  

Source: Albert, Réka - Departments of Biology & Physics, Pennsylvania State University

 

Collections: Biology and Medicine