Network Science

Emergence of scaling in random networks

Systems as diverse as genetic networks or the World Wide Web are best described as networks with complex topology. A common property of many large networks is that the vertex connectivities follow a scale-free power-law distribution. This feature was found to be a consequence of two generic mechanisms: (i) networks expand continuously by the addition of new vertices, and (ii) new vertices attach preferentially to sites that are already well connected. A model based on these two ingredients reproduces the observed stationary scale-free distributions, which indicates that the development of large networks is governed by robust self-organizing phenomena that go beyond the particulars of the individual systems.


More publications
A.-L. Barabási

Applied Physics Letters 70, 2565-2567 (1997)

M. A. Makeev, A.-L. Barabási

Applied Physics Letters 72, 906–908 (1998)

A.-L. Barabási

Physical Review Letters 76, 3750–3753 (1996)