WHAT ARE NETWORKS?
WHAT ARE NETWORKS?
This chapter introduces the basic characteristics and notions of graph theory and the science of networks: degree, degree distribution, clustering coefficient, the average length of the shortest path between two nodes in a network, the size of a giant connected component, and others. The classical random graphs and their characteristics are introduced and explained. The contrasting types of degree distributions are discussed: namely, Poisson and scale-free distributions.
Keywords: degree distribution, giant connected component, clustering coefficient, graph theory, Poisson distribution, scale-free distributions
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