Article,

World Wide Web scaling exponent from Simon's 1955 model

, and .
Phys. Rev. E, 64 (3): 035104 (August 2001)e-print cond-mat/0008465.
DOI: 10.1103/PhysRevE.64.035104

Abstract

The statistical properties of the World Wide Web have attracted considerable attention recently since self-similar regimes were first observed in the scaling of its link structure. One characteristic quantity is the number of (in-)links k that point to a particular web page. Its probability distribution P(k) shows a pronounced power-law scaling P(k)∼k-γ that is not readily explained by standard random graph theory. Here, we recall a simple and elegant model for scaling phenomena in general copy- and growth-processes as proposed by Simon in 1955. When combined with an experimental measurement of network growth in the World Wide Web, this classical model is able to model the in-link dynamics and predicts the scaling exponent γ=2.1 in accordance with observation.

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