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We generalize the poissonian evolving random graph model of Bauer and Bernard to deal with arbitrary degree distributions. The motivation comes from biological networks, which are well-known to exhibit non poissonian degree distribution. A…

统计力学 · 物理学 2009-11-07 Stephane Coulomb , Michel Bauer

We show that for an Erd\H{o}s-R\'{e}nyi graph on $N$ vertices with expected degree $d$ satisfying $\log^{-1/9}N\leq d\leq \log^{1/40}N$, the largest eigenvalues can be precisely determined by small neighborhoods around vertices of close to…

概率论 · 数学 2023-09-21 Ella Hiesmayr , Theo McKenzie

Complex networks have gained more attention from the last few years. The size of real-world complex networks, such as online social networks, WWW network, collaboration networks, is increasing exponentially with time. It is not feasible to…

社会与信息网络 · 计算机科学 2019-10-08 Akrati Saxena , Vaibhav Malik , S. R. S. Iyengar

We consider the problem of determining the proportion of edges that are discovered in an Erdos-Renyi graph when one constructs all shortest paths from a given source node to all other nodes. This problem is equivalent to the one of…

Traditionally, graph neural networks have been trained using a single observed graph. However, the observed graph represents only one possible realization. In many applications, the graph may encounter uncertainties, such as having…

机器学习 · 计算机科学 2024-10-10 See Hian Lee , Feng Ji , Kelin Xia , Wee Peng Tay

Analogous to biological sequence comparison, comparing cellular networks is an important problem that could provide insight into biological understanding and therapeutics. For technical reasons, comparing large networks is computationally…

分子网络 · 定量生物学 2009-01-30 Natasa Przulj

We consider the following problem: let $n>k$ be natural numbers, and let $G$ be a graph on $n$ vertices (undirected, without loops or multiple edges). Denote by $h_k(G)$ the number of unordered pairs of vertices in the graph $G$ whose…

组合数学 · 数学 2026-01-15 Sergey Dmitrievich Onishchenko

We study mixing of the Metropolis algorithm for a distribution on the hypercube that corresponds to the Erd\H{o}s-R\'enyi random graph with edge probability p. This Markov chain has cutoff at max{p,1-p} n log n with window size n, a result…

概率论 · 数学 2013-09-30 Winfried Barta

We use an algebraic method to prove a degree version of the celebrated Erd\H os-Ko-Rado theorem: given $n>2k$, every intersecting $k$-uniform hypergraph $H$ on $n$ vertices contains a vertex that lies on at most $\binom{n-2}{k-2}$ edges.…

组合数学 · 数学 2016-05-25 Hao Huang , Yi Zhao

We consider the number of common edges in two independent random spanning trees of a graph $G$. For complete graphs $K_n$, we give a new proof of the fact, originally obtained by Moon, that the distribution converges to a Poisson…

组合数学 · 数学 2025-06-09 Miklos Bona , Fabian Burghart , Stephan Wagner

Let $k,r \geq 2$ be two integers. We consider the problem of partitioning the hyperedge set of an $r$-uniform hypergraph $H$ into the minimum number $\chi_k'(H)$ of edge-disjoint subhypergraphs in which every vertex has either degree $0$ or…

组合数学 · 数学 2025-10-07 Gaia Carenini , Samuel Coulomb

Graph symmetries intervene in diverse applications, from enumeration, to graph structure compression, to the discovery of graph dynamics (e.g., node arrival order inference). Whereas Erd\H{o}s-R\'enyi graphs are typically asymmetric, real…

概率论 · 数学 2018-12-27 Tomasz Luczak , Abram Magner , Wojciech Szpankowski

We study a variant of the standard random intersection graph model ($G(n,m,F,H)$) in which random weights are assigned to both vertex types in the bipartite structure. Under certain assumptions on the distributions of these weights, the…

组合数学 · 数学 2010-03-10 Yilun Shang

This paper considers the problem of estimating a power-law degree distribution of an undirected network using sampled data. Although power-law degree distributions are ubiquitous in nature, the widely used parametric methods for estimating…

社会与信息网络 · 计算机科学 2021-03-09 Buddhika Nettasinghe , Vikram Krishnamurthy

We study a simple model of dynamic networks, characterized by a set preferred degree, $\kappa$. Each node with degree $k$ attempts to maintain its $\kappa$ and will add (cut) a link with probability $w(k;\kappa)$ ($1-w(k;\kappa)$). As a…

物理与社会 · 物理学 2013-07-29 Wenjia Liu , Shivakumar Jolad , Beate Schmittmann , R. K. P. Zia

Graph alignment - identifying node correspondences between two graphs - is a fundamental problem with applications in network analysis, biology, and privacy research. While substantial progress has been made in aligning correlated…

信息论 · 计算机科学 2026-03-16 Jakob Maier , Laurent Massoulié

We study the expected adjacency matrix of a uniformly random multigraph with fixed degree sequence $\mathbf{d} \in \mathbb{Z}_+^n$. This matrix arises in a variety of analyses of networked data sets, including modularity-maximization and…

社会与信息网络 · 计算机科学 2020-02-10 Philip S. Chodrow

In this article, we study random graphs with a given degree sequence $d_1, d_2, \cdots, d_n$ from the configuration model. We show that under mild assumptions of the degree sequence, the spectral distribution of the normalized Laplacian…

概率论 · 数学 2024-12-04 Shuyi Wang , Kevin Li , Jiaoyang Huang

Let $\mathcal{G}(N,\frac 1Nt_N)$ be the Erd\H{o}s-R\'enyi graph with connection probability $\frac 1Nt_N\sim t/N$ as $N\to\infty$ for a fixed $t\in(0,\infty)$. We derive a large-deviations principle for the empirical measure of the sizes of…

概率论 · 数学 2021-04-26 Luisa Andreis , Wolfgang König , Robert I. A. Patterson

Let G be a simple graph without isolated vertices. For a vertex i in G, the degree d_i is the number of vertices adjacent to i and the average 2-degree m_i is the mean of the degrees of the vertices which are adjacent to i. The sequence of…

组合数学 · 数学 2018-11-08 Yu-pei Huang , Chia-an Liu , Chih-wen Weng