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The availability of large scale streaming network data has reinforced the ubiquity of power-law distributions in observations and enabled precision measurements of the distribution parameters. The increased accuracy of these measurements…

物理与社会 · 物理学 2021-08-23 Pat Devlin , Jeremy Kepner , Ashley Luo , Erin Meger

A network growth mechanism based on a two-step preferential rule is investigated as a model of network growth in which no global knowledge of the network is required. In the first filtering step a subset of fixed size $m$ of existing nodes…

无序系统与神经网络 · 物理学 2009-11-10 Hrvoje Stefancic , Vinko Zlatic

We derive some key extremal features for $k$th order Markov chains that can be used to understand how the process moves between an extreme state and the body of the process. The chains are studied given that there is an exceedance of a…

统计理论 · 数学 2023-01-27 Ioannis Papastathopoulos , Adrian Casey , Jonathan A. Tawn

We examine a discrete random recursive tree growth process that, at each time step, either adds or deletes a node from the tree with probability $p$ and $1-p$, respectively. Node addition follows the usual uniform attachment model. For node…

概率论 · 数学 2021-08-03 Arnold Saunders

A preferential attachment model for a growing network incorporating deletion of edges is studied and the expected asymptotic degree distribution is analyzed. At each time step $t=1,2,\ldots$, with probability $\pi_1>0$ a new vertex with one…

物理与社会 · 物理学 2015-09-30 Maria Deijfen , Mathias Lindholm

The organizational development of growing random networks is investigated. These growing networks are built by adding nodes successively and linking each to an earlier node of degree k with attachment probability A_k. When A_k grows slower…

统计力学 · 物理学 2009-10-31 P. L. Krapivsky , S. Redner

Preferential attachment networks are a type of random network where new nodes are connected to existing ones at random, and are more likely to connect to those that already have many connections. We investigate further a family of models…

概率论 · 数学 2021-07-28 Ben Andrews , Jonathan Jordan

We introduce a growing network model---the copying model---in which a new node attaches to a randomly selected target node and, in addition, independently to each of the neighbors of the target with copying probability $p$. When…

统计力学 · 物理学 2016-12-14 U. Bhat , P. L. Krapivsky , R. Lambiotte , S. Redner

The seminal work of Chow and Liu (1968) shows that approximation of a finite probabilistic system by Markov trees can achieve the minimum information loss with the topology of a maximum spanning tree. Our current paper generalizes the…

数据结构与算法 · 计算机科学 2018-01-23 Liang Ding , Di Chang , Russell Malmberg , Aaron Martinez , David Robinson , Matthew Wicker , Hongfei Yan , Liming Cai

We examine the global organization of growing networks in which a new vertex is attached to already existing ones with a probability depending on their age. We find that the network is infinite- or finite-dimensional depending on whether…

统计力学 · 物理学 2009-11-13 S. N. Dorogovtsev , P. L. Krapivsky , J. F. F. Mendes

We introduce an evolving network model in which a new node attaches to a randomly selected target node and also to each of its neighbors with probability $p$. The resulting network is sparse for $p<\frac{1}{2}$ and dense (average degree…

物理与社会 · 物理学 2016-11-23 R. Lambiotte , P. L. Krapivsky , U. Bhat , S. Redner

Complex networks in different areas exhibit degree distributions with heavy upper tail. A preferential attachment mechanism in a growth process produces a graph with this feature. We herein investigate a variant of the simple preferential…

概率论 · 数学 2018-04-18 Angelica Pachon , Laura Sacerdote , Shuyi Yang

Growing synthetic networks that follow power law distributions of a node's degree often involves adding one node at a time. Each node is added to the network with a fixed amount of edges and those edges are frozen for all future time steps.…

物理与社会 · 物理学 2026-01-27 Justin Downes

We consider a distributed detection system with communication constraints, where several nodes are arranged in an arbitrary tree topology, under the assumption of conditionally independent observations. We propose a cyclic design procedure…

信息论 · 计算机科学 2015-01-23 Alla Tarighati , Joakim Jalden

We propose a simple preferential attachment model of growing network using the complementary probability of Barab\'asi-Albert (BA) model, i.e., $\Pi(k_i) \propto 1-\frac{k_i}{\sum_j k_j}$. In this network, new nodes are preferentially…

物理与社会 · 物理学 2016-01-20 A. Lachgar , A. Achahbar

We present analytical results for the emerging structure of networks that evolve via a combination of growth (by node addition and random attachment) and contraction (by random node deletion). To this end we consider a network model in…

统计力学 · 物理学 2022-10-25 Barak Budnick , Ofer Biham , Eytan Katzav

We introduce a collection of complex networks generated by a combination of preferential attachment and a previously unexamined process of "splitting" nodes of degree $k$ into $k$ nodes of degree 1. Four networks are considered, each…

物理与社会 · 物理学 2013-09-25 E. R. Colman , G. J. Rodgers

We provide a framework for modeling social network formation through conditional multinomial logit models from discrete choice and random utility theory, in which each new edge is viewed as a "choice" made by a node to connect to another…

社会与信息网络 · 计算机科学 2020-05-22 Jan Overgoor , Austin R. Benson , Johan Ugander

In a recent paper, Krapivsky and Redner (Phys. Rev. E, 71 (2005) 036118) proposed a new growing network model with new nodes being attached to a randomly selected node, as well to all ancestors of the target node. The model leads to a…

物理与社会 · 物理学 2007-05-23 Sergi Valverde , Ricard V. Sole

We investigate choice-driven network growth. In this model, nodes are added one by one according to the following procedure: for each addition event a set of target nodes is selected, each according to linear preferential attachment, and a…

统计力学 · 物理学 2014-07-25 P. L. Krapivsky , S. Redner