Department of Computer Science University of York

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Presentation transcript:

Department of Computer Science University of York Complex Network Department of Computer Science University of York

Network in Life

Network

Basic Concepts Average Path Length the mean distance between two nodes, averaged over all pairs of nodes. Clustering Coefficient the average fraction of pairs of neighbors of a node that are also neighbors of each other. Degree Distribution The spread of node degrees over a network is characterized by a distribution function P(k)

Network Models Random Graphs Small-World Model Scale-Free Model

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