Example Complex Networks (IMAGE)
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Four example complex networks, from top-left to bottom-right: (a) a wiring diagram of the nematode worm brain; (b) a complex network constructed from a chaotic circuit; (c) a partial representation of the author's Facebook friend network, colored according clustering; and (d) a (fragmented) network of potential infection pathways for avian influenza. Despite the apparently diverse structure and origin, these four structures can be modelled and described by the same theory. In this paper we develop that theory to better understand which of the features of these networks are important, and which may be due to random fluctuation.
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