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Scale free dynamics are observed in a variety of physical and biological systems. These include neural activity in which evidence for scale freeness has been reported using a range of imaging modalities. Here, we derive the ways in which…

In the context of growing networks, we introduce a simple dynamical model that unifies the generic features of real networks: scale-free distribution of degree and the small world effect. While the average shortest path length increases…

凝聚态物理 · 物理学 2009-11-07 Konstantin Klemm , Victor M. Eguiluz

Through the distinction between ``real'' and ``virtual'' links between the nodes of a graph, we develop a set of simple rules leading to scale-free networks with a tunable degree distribution exponent. Albeit sharing some similarities with…

统计力学 · 物理学 2007-05-23 F. Stauffer

A random network is grown by introducing at unit rate randomly selected nodes on the Euclidean space. A node is randomly connected to its $i$-th predecessor of degree $k_i$ with a directed link of length $\ell$ using a probability…

统计力学 · 物理学 2009-11-07 S. S. Manna , Parongama Sen

Several growth models have been proposed in the literature for scale-free complex networks, with a range of fitness-based attachment models gaining prominence recently. However, the processes by which such fitness-based attachment behaviour…

社会与信息网络 · 计算机科学 2017-02-15 Michael Bell , Supun Perera , Mahendrarajah Piraveenan , Michiel Bliemer , Tanya Latty , Chris Reid

The contradiction between the fact that many empirical networks possess power-law degree distribution and the finding that network of heterogeneous degree distribution is difficult to synchronize has been a paradox in the study of network…

混沌动力学 · 物理学 2007-05-23 Xingang Wang , Ying-Cheng Lai , Choy Heng Lai

Scale-free (SF) networks and small world networks have been found to occur in very diverse contexts. It is this striking universality which makes one look for widely applicable mechanisms which lead to the formation of such networks. In…

无序系统与神经网络 · 物理学 2007-05-23 Markus Brede , John Finnigan

Many real networks are complex and have power-law vertex degree distribution, short diameter, and high clustering. We analyze the network model based on thresholding of the summed vertex weights, which belongs to the class of networks…

其他凝聚态物理 · 物理学 2007-05-23 Naoki Masuda , Hiroyoshi Miwa , Norio Konno

Extensive studies have been done to understand the principles behind architectures of real networks. Recently, evidences for hierarchical organization in many real networks have also been reported. Here, we present a new hierarchical model…

其他凝聚态物理 · 物理学 2007-05-23 J. C. Nacher , N. Ueda , M. Kanehisa , T. Akutsu

Measurements and data analysis have proved very effective in the study of the Internet's physical fabric and have shown heterogeneities and statistical fluctuations extending over several orders of magnitude. Here we analyze performance…

凝聚态物理 · 物理学 2009-11-07 Roberto Percacci , Alessandro Vespignani

Real-world growth processes and scalings have been broadly categorized into three growth regimes with distinctly different properties and driving forces. The first two are characterized by a positive and constant feedback between growth and…

物理与社会 · 物理学 2025-03-20 Alain Govaert , André Teixeira , Emma Tegling

The surrounding of a vertex in a network can be more or less symmetric. We derive measures of a specific kind of symmetry of a vertex which we call degree symmetry -- the property that many paths going out from a vertex have overlapping…

数据分析、统计与概率 · 物理学 2007-05-23 Petter Holme

We study diffusion (random walks) on recursive scale-free graphs, and contrast the results to similar studies in other analytically soluble media. This allows us to identify ways in which diffusion in scale-free graphs is special. Most…

无序系统与神经网络 · 物理学 2007-05-23 Erik M. Bollt , Daniel ben-Avraham

Susceptibility of scale free Power Law (PL) networks to attacks has been traditionally studied in the context of what may be termed as {\em instantaneous attacks}, where a randomly selected set of nodes and edges are deleted while the…

统计力学 · 物理学 2007-05-23 Behnam A. Rezaei , Nima Sarshar , P. Oscar Boykin , Vwani P. Roychowdhury

Many complex natural and physical systems exhibit patterns of interconnection that conform, approximately, to a network structure referred to as scale-free. Preferential attachment is one of many algorithms that have been introduced to…

物理与社会 · 物理学 2014-11-18 Linjun Zhang , Michael Small , Kevin Judd

Many real-world networks were found to be highly clustered, and contain a large amount of small cliques. We here investigate the number of cliques of any size k contained in a geometric inhomogeneous random graph: a scale-free network model…

概率论 · 数学 2022-06-06 Riccardo Michielan , Clara Stegehuis

In contrast to the conventional wisdom that scale-free networks are prone to epidemic propagation, in the paper we present that disease spreading is inhibited in fractal scale-free networks. We first propose a novel network model and show…

种群与进化 · 定量生物学 2008-09-25 Zhongzhi Zhang , Shuigeng Zhou , Zou Tao , Guisheng Chen

The fluctuation of dynamic variables in complex networks is known to depend on the dimension and the heterogeneity of the substrate networks. Previous studies, however, have reported inconsistent results for the scaling behavior of…

物理与社会 · 物理学 2018-04-11 H. -H. Yoo , D. -S. Lee

In the paper, we present an incremental approach in the construction of scale free networks with hidden variables. The work arises from the necessity to generate that type of networks with a given number of links instead of obtaining a…

无序系统与神经网络 · 物理学 2021-06-10 Fabio Vanni

Network science have constantly been in the focus of research for the last decade, with considerable advances in the controllability of their structural. However, much less effort has been devoted to study that how to improve the…

系统与控制 · 计算机科学 2016-10-12 Jiuqiang Xu , Jinfa Wang , Hai Zhao , Siyuan Jia