Interplay between function and structure in complex networks.

We show that abrupt structural transitions can arise in functionally optimal networks, driven by small changes in the level of transport congestion. Our results offer an explanation as to why so many diverse species of network structure arise in nature (e.g., fungal systems) under essentially the sa...

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Main Authors: Jarrett, T, Ashton, D, Fricker, M, Johnson, N
Format: Journal article
Language:English
Published: 2006
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author Jarrett, T
Ashton, D
Fricker, M
Johnson, N
author_facet Jarrett, T
Ashton, D
Fricker, M
Johnson, N
author_sort Jarrett, T
collection OXFORD
description We show that abrupt structural transitions can arise in functionally optimal networks, driven by small changes in the level of transport congestion. Our results offer an explanation as to why so many diverse species of network structure arise in nature (e.g., fungal systems) under essentially the same environmental conditions. Our findings are based on an exactly solvable model system which mimics a variety of biological and social networks. We then extend our analysis by introducing a renormalization scheme involving cost motifs, to describe analytically the average shortest path across multiple-ring-and-hub networks. As a consequence, we uncover a "skin effect" whereby the structure of the inner multi-ring core can cease to play any role in terms of determining the average shortest path across the network.
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spelling oxford-uuid:04b95462-1d00-4b33-af5a-140eb748034e2022-03-26T08:53:16ZInterplay between function and structure in complex networks.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:04b95462-1d00-4b33-af5a-140eb748034eEnglishSymplectic Elements at Oxford2006Jarrett, TAshton, DFricker, MJohnson, NWe show that abrupt structural transitions can arise in functionally optimal networks, driven by small changes in the level of transport congestion. Our results offer an explanation as to why so many diverse species of network structure arise in nature (e.g., fungal systems) under essentially the same environmental conditions. Our findings are based on an exactly solvable model system which mimics a variety of biological and social networks. We then extend our analysis by introducing a renormalization scheme involving cost motifs, to describe analytically the average shortest path across multiple-ring-and-hub networks. As a consequence, we uncover a "skin effect" whereby the structure of the inner multi-ring core can cease to play any role in terms of determining the average shortest path across the network.
spellingShingle Jarrett, T
Ashton, D
Fricker, M
Johnson, N
Interplay between function and structure in complex networks.
title Interplay between function and structure in complex networks.
title_full Interplay between function and structure in complex networks.
title_fullStr Interplay between function and structure in complex networks.
title_full_unstemmed Interplay between function and structure in complex networks.
title_short Interplay between function and structure in complex networks.
title_sort interplay between function and structure in complex networks
work_keys_str_mv AT jarrettt interplaybetweenfunctionandstructureincomplexnetworks
AT ashtond interplaybetweenfunctionandstructureincomplexnetworks
AT frickerm interplaybetweenfunctionandstructureincomplexnetworks
AT johnsonn interplaybetweenfunctionandstructureincomplexnetworks