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Phys Rev E Stat Nonlin Soft Matter Phys. 2002 Sep;66(3 Pt 2A):035103. Epub 2002 Sep 30.

Scale-free topology of e-mail networks.

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  • 1Institut für Theoretische Physik, Universität Kiel, Leibnizstrasse 15, Germany.


We study the topology of e-mail networks with e-mail addresses as nodes and e-mails as links using data from server log files. The resulting network exhibits a scale-free link distribution and pronounced small-world behavior, as observed in other social networks. These observations imply that the spreading of e-mail viruses is greatly facilitated in real e-mail networks compared to random architectures.

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