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We characterize the tail behavior of the distribution of the PageRank of a uniformly chosen vertex in a directed preferential attachment graph and show that it decays as a power law with an explicit exponent that is described in terms of…

概率论 · 数学 2021-10-20 Sayan Banerjee , Mariana Olvera-Cravioto

We consider a preferential attachment process in which a multigraph is built one node at a time. The number of edges added at stage $t$, emanating from the new node, is given by some prescribed function $f(t)$, generalising a model…

组合数学 · 数学 2021-07-05 Richard Elwes

Clustering is well-known to play a prominent role in the description and understanding of complex networks, and a large spectrum of tools and ideas have been introduced to this end. In particular, it has been recognized that the abundance…

无序系统与神经网络 · 物理学 2009-11-10 Danilo Sergi

The classical preferential attachment model is sensitive to the choice of the initial configuration of the network. As the number of initial nodes and their degree grow, so does the time needed for an equilibrium degree distribution to be…

物理与社会 · 物理学 2013-06-18 Yves Berset , Matus Medo

We consider the problem of sampling from a distribution on graphs, specifically when the distribution is defined by an evolving graph model, and consider the time, space and randomness complexities of such samplers. In the standard…

数据结构与算法 · 计算机科学 2025-09-03 Guy Even , Reut Levi , Moti Medina , Adi Rosen

We present analytical results for the effect of preferential node deletion on the structure of networks that evolve via node addition and preferential attachment. To this end, we consider a preferential-attachment-preferential-deletion…

物理与社会 · 物理学 2025-06-24 Barak Budnick , Ofer Biham , Eytan Katzav

In this paper we present a generalized model for network growth that links the microscopical agent strategies with the large scale behavior. This model is intended to reproduce the largest number of features of the Internet network at the…

统计力学 · 物理学 2007-05-23 Guido Caldarelli , Paolo De Los Rios , Luciano Pietronero

Recent work on the structure of social networks and the internet has focussed attention on graphs with distributions of vertex degree that are significantly different from the Poisson degree distributions that have been widely studied in…

统计力学 · 物理学 2009-10-31 M. E. J. Newman , S. H. Strogatz , D. J. Watts

The degree distribution of a real world network -- the number of links per node -- often follows a power law, with some hubs having many more links than traditional graph generation methods predict. For years, preferential attachment and…

社会与信息网络 · 计算机科学 2024-09-30 Josh Johnston , Tim Andersen

We study randomly growing trees governed by the affine preferential attachment rule. Starting with a seed tree $S$, vertices are attached one by one, each linked by an edge to a random vertex of the current tree, chosen with a probability…

概率论 · 数学 2018-11-01 David Corlin Marchand , Ioan Manolescu

We study a new class of preferential attachment trees with \emph{self-reinforcement}. At each time, each vertex is assigned a weight equal to the cumulative sum over past times of an affine function of its degree. A new vertex attaches…

Growing attention has been brought to the fact that many real directed networks exhibit hierarchy and directionality as measured through techniques like Trophic Analysis and non-normality. We propose a simple growing network model where the…

物理与社会 · 物理学 2024-05-13 Niall Rodgers , Peter Tino , Samuel Johnson

We study the growth of a directed network, in which the growth is constrained by the cost of adding links to the existing nodes. We propose a new preferential-attachment scheme, in which a new node attaches to an existing node i with…

统计力学 · 物理学 2007-05-23 Volkan Sevim , Per Arne Rikvold

The Barab\'asi-Albert model is a popular scheme for creating scale-free graphs but has been previously shown to have ambiguities in its definition. In this paper we discuss a new ambiguity in the definition of the BA model by identifying…

数据结构与算法 · 计算机科学 2021-10-14 Giorgos Stamatelatos , Pavlos S. Efraimidis

We consider random recursive trees that are grown via community modulated schemes that involve random attachment or degree based attachment. The aim of this paper is to derive general techniques based on continuous time embedding to study…

概率论 · 数学 2020-08-05 Shankar Bhamidi , Ruituo Fan , Nicolas Fraiman , Andrew Nobel

We include complex connectivity structures and heterogeneity in models of multilayer networks or multilayer hypergraphs growing by preferential attachment. We consider the most generic connectivity structure, where the probability of…

无序系统与神经网络 · 物理学 2025-05-26 Francesco Di Lauro , Luca Ferretti

We propose a general class of co-evolving tree network models driven by local exploration where new vertices attach to the current network via randomly sampling a vertex and then exploring the graph for a random number of steps in the…

概率论 · 数学 2024-03-05 Sayan Banerjee , Shankar Bhamidi , Xiangying Huang

We investigate the joint distribution of nodes of small degrees and the degree profile in preferential dynamic attachment circuits. In particular, we study the joint asymptotic distribution of the number of the nodes of outdegree $0$…

概率论 · 数学 2018-03-02 Panpan Zhang , Hosam Mahmoud

Network models with preferential attachment, where new nodes are injected into the network and form links with existing nodes proportional to their current connectivity, have been well studied for some time. Extensions have been introduced…

物理与社会 · 物理学 2013-06-26 James P. Bagrow , Dirk Brockmann

Real-world networks tend to be scale free, having heavy-tailed degree distributions with more hubs than predicted by classical random graph generation methods. Preferential attachment and growth are the most commonly accepted mechanisms…

离散数学 · 计算机科学 2022-07-20 Josh Johnston , Tim Andersen