Collective dynamics of 'small-world' networks
Watts, Duncan J; Strogatz, Steven H., Nature (Jun 4, 1998): 440-2.
Added by Allen Downey
Watts and Strogatz observe that some empirical networks have both high connectivity and short path lengths. They call this combination of features the "small world" property. They show that regular graphs and completely random graphs do not have this property; then they propose a way to construct random graphs that do. They suggest that this model will have applications in "biological, social, and man-made systems".
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