Results 11 to 20 of about 1,692,270 (273)

Rare and everywhere: Perspectives on scale-free networks [PDF]

open access: yesNature Communications, 2019
Are scale-free networks rare or universal? Important or not? We present the recent research about degree distributions of networks. This is a controversial topic, but, we argue, with some adjustments of the terminology, it does not have to be.
Petter Holme
doaj   +2 more sources

Degree correlations in directed scale-free networks. [PDF]

open access: yesPLoS ONE, 2014
Scale-free networks, in which the distribution of the degrees obeys a power-law, are ubiquitous in the study of complex systems. One basic network property that relates to the structure of the links found is the degree assortativity, which is a measure ...
Oliver Williams, Charo I Del Genio
doaj   +2 more sources

Hidden early-warning signals in scale-free networks. [PDF]

open access: yesPLoS ONE, 2017
Critical transitions of complex systems can often be predicted by so-called early-warning signals (EWS). In some cases, however, such signals cannot be detected although a critical transition is imminent. Observing a relation of EWS-detectability and the
Georg Jäger   +3 more
doaj   +2 more sources

Scale-Free Brain Functional Networks [PDF]

open access: yesPhysical Review Letters, 2005
4 pages, 5 figures, 2 ...
Eguíluz, Víctor M.   +4 more
openaire   +6 more sources

Scale-free networks in metabolomics. [PDF]

open access: yesBioinformation, 2018
Metabolomics is an expanding discipline in biology. It is the process of portraying the phenotype of a cell, tissue or species organism using a comprehensive set of metabolites. Therefore, it is of interest to understand complex systems such as metabolomics using a scale-free topology.
Rajula HSR, Mauri M, Fanos V.
europepmc   +4 more sources

Percolation in directed scale-free networks [PDF]

open access: yesPhysical Review E, 2002
Many complex networks in nature have directed links, a property that affects the network's navigability and large-scale topology. Here we study the percolation properties of such directed scale-free networks with correlated in- and out-degree distributions.
Schwartz, N.   +4 more
openaire   +4 more sources

Degree landscapes in scale-free networks [PDF]

open access: yesPhysical Review E, 2006
We generalize the degree-organizational view of real-world networks with broad degree-distributions in a landscape analogue with mountains (high-degree nodes) and valleys (low-degree nodes). For example, correlated degrees between adjacent nodes corresponds to smooth landscapes (social networks), hierarchical networks to one-mountain landscapes (the ...
Axelsen, Jacob Bock   +4 more
openaire   +5 more sources

Enhancing structural robustness of scale-free networks by information disturbance [PDF]

open access: yesScientific Reports, 2017
Many real-world systems can be described by scale-free networks with power-law degree distributions. Scale-free networks show a “robust yet fragile” feature due to their heterogeneous degree distributions.
Jun Wu   +4 more
doaj   +2 more sources

All Scale-Free Networks Are Sparse [PDF]

open access: yesPhysical Review Letters, 2011
We study the realizability of scale free-networks with a given degree sequence, showing that the fraction of realizable sequences undergoes two first-order transitions at the values 0 and 2 of the power-law exponent. We substantiate this finding by analytical reasoning and by a numerical method, proposed here, based on extreme value arguments, which ...
del Genio, CI, Gross, T, Bassler, KE
openaire   +8 more sources

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