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A model of correlated random networks is examined, i.e. networks with correlations between the degrees of neighboring nodes. These nodes do not necessarily have to be direct neighbors, the maximum range of the correlations can be…

统计力学 · 物理学 2007-05-23 W. Pietsch

Random networks are widely used to model complex networks and research their properties. In order to get a good approximation of complex networks encountered in various disciplines of science, the ability to tune various statistical…

无序系统与神经网络 · 物理学 2009-11-13 Andreas Pusch , Sebastian Weber , Markus Porto

We obtain the clustering coefficient, the degree-dependent local clustering, and the mean clustering of networks with arbitrary correlations between the degrees of the nearest-neighbor vertices. The resulting formulas allow one to determine…

统计力学 · 物理学 2009-11-10 S. N. Dorogovtsev

We introduce a formalism for computing bond percolation properties of a class of correlated and clustered random graphs. This class of graphs is a generalization of the Configuration Model where nodes of different types are connected via…

The paper orders certain important issues related to both uncorrelated and correlated networks with hidden variables. In particular, we show that networks being uncorrelated at the hidden level are also lacking in correlations between node…

无序系统与神经网络 · 物理学 2009-11-11 Agata Fronczak , Piotr Fronczak

(a) We propose a ``static'' construction procedure for random networks with given correlations of the degrees of the nearest-neighbor vertices. This is an equilibrium graph, maximally random under the constraint that its degree-degree…

统计力学 · 物理学 2007-05-23 S. N. Dorogovtsev , J. F. F. Mendes , A. N. Samukhin

Dynamical processes on complex networks such as information propagation, innovation diffusion, cascading failures or epidemic spreading are highly affected by their underlying topologies as characterized by, for instance, degree-degree…

数据分析、统计与概率 · 物理学 2013-03-05 Mathias Raschke , Markus Schläpfer , Konstantinos Trantopoulos

We develop a statistical theory to characterize correlations in weighted networks. We define the appropriate metrics quantifying correlations and show that strictly uncorrelated weighted networks do not exist due to the presence of…

无序系统与神经网络 · 物理学 2009-11-11 M. Angeles Serrano , Marian Boguna , Romualdo Pastor-Satorras

Most real-world complex systems can be modelled by coupled networks with multiple layers. How and to what extent the pattern of couplings between network layers may influence the interlaced structure and function of coupled networks are not…

数据分析、统计与概率 · 物理学 2010-10-26 Won-kuk Cho , K. -I. Goh , I. -M. Kim

Network topologies can be non-trivial, due to the complex underlying behaviors that form them. While past research has shown that some processes on networks may be characterized by low-order statistics describing nodes and their neighbors,…

物理与社会 · 物理学 2019-10-22 Xin-Zeng Wu , Allon G. Percus , Keith Burghardt , Kristina Lerman

We introduce a correlated static model and investigate a percolation transition. The model is a modification of the static model and is characterized by assortative degree-degree correlation. As one varies the edge density, the network…

统计力学 · 物理学 2015-05-13 Sang-Woo Kim , Jae Dong Noh

For any initial correlated network after any kind of attack where either nodes or edges are removed, we obtain general expressions for the degree-degree probability matrix and degree distribution. We show that the proposed analytical…

物理与社会 · 物理学 2013-02-18 Animesh Srivastava , Bivas Mitra , Niloy Ganguly , Fernando Peruani

We propose that negative degree correlation among nodes in a network of nonlinear oscillators, often detected in real world networks, is motivated by its positive effects on synchronizability. In so doing, we use a novel methodology to…

无序系统与神经网络 · 物理学 2007-12-08 Mario di Bernardo , Franco Garofalo , Francesco Sorrentino

In complex networks the degrees of adjacent nodes may often appear dependent -- which presents a modelling challenge. We present a working framework for studying networks with an arbitrary joint distribution for the degrees of adjacent…

组合数学 · 数学 2020-08-25 Samuel , G. Balogh , Gergely Palla , Ivan Kryven

We reconsider the problem of percolation on an equilibrium random network with degree-degree correlations between nearest-neighboring vertices focusing on critical singularities at a percolation threshold. We obtain criteria for…

统计力学 · 物理学 2009-11-13 A. V. Goltsev , S. N. Dorogovtsev , J. F. F. Mendes

We study a problem of failure of two interdependent networks in the case of correlated degrees of mutually dependent nodes. We assume that both networks (A and B) have the same number of nodes $N$ connected by the bidirectional dependency…

无序系统与神经网络 · 物理学 2015-05-20 Sergey V. Buldyrev , Nathaniel Shere , Gabriel A. Cwilich

We consider robustness and percolation properties of the networks of networks, in which random nodes in different individual networks (layers) can be interdependent. We explore the emergence of the giant mutually connected component,…

无序系统与神经网络 · 物理学 2014-11-18 Ginestra Bianconi , Sergey N. Dorogovtsev

Many social networks exhibit assortative mixing so that the predictions of uncorrelated models might be inadequate. To analyze the role of assortativity we introduce an algorithm which changes correlations in a network and produces…

统计力学 · 物理学 2009-11-10 R. Xulvi-Brunet , I. M. Sokolov

Uncorrelated random scale-free networks are useful null models to check the accuracy an the analytical solutions of dynamical processes defined on complex networks. We propose and analyze a model capable to generate random uncorrelated…

无序系统与神经网络 · 物理学 2009-11-10 Michele Catanzaro , Marian Boguna , Romualdo Pastor-Satorras

Random networks are intensively used as null models to investigate properties of complex networks. We describe an efficient and accurate algorithm to generate arbitrarily two-point correlated undirected random networks without self- or…

统计力学 · 物理学 2007-10-22 Sebastian Weber , Markus Porto
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