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We propose a novel approach to the problem of mutual information (MI) estimation via introducing a family of estimators based on normalizing flows. The estimator maps original data to the target distribution, for which MI is easier to…

机器学习 · 计算机科学 2024-05-28 Ivan Butakov , Alexander Tolmachev , Sofia Malanchuk , Anna Neopryatnaya , Alexey Frolov

Mutualistic networks are used to study the structure and processes inherent to mutualistic relationships. In this paper, we introduce a random matrix ensemble (RME) representing the adjacency matrices of mutualistic networks composed by two…

无序系统与神经网络 · 物理学 2021-11-10 C. T. Martínez-Martínez , J. A. Méndez-Bermúdez , Thomas Peron , Yamir Moreno

Recently, a phase transition has been discovered in the network community detection problem below which no algorithm can tell which nodes belong to which communities with success any better than a random guess. This result has, however, so…

社会与信息网络 · 计算机科学 2016-01-13 Pan Zhang , Cristopher Moore , M. E. J. Newman

Community detection in a complex network is an important problem of much interest in recent years. In general, a community detection algorithm chooses an objective function and captures the communities of the network by optimizing the…

社会与信息网络 · 计算机科学 2015-08-27 Suman Saha , Satya P. Ghrera

Community structure in networks is observed in many different domains, and unsupervised community detection has received a lot of attention in the literature. Increasingly the focus of network analysis is shifting towards using network…

统计方法学 · 统计学 2020-03-02 Jesús Arroyo , Elizaveta Levina

The growing popularity of online social networks has provided researchers with access to large amount of social network data. This, coupled with the ever increasing computation speed, storage capacity and data mining capabilities, led to…

计算机与社会 · 计算机科学 2008-12-18 Rumi Ghosh , Kristina Lerman

Community detection algorithms are in general evaluated by comparing evaluation metric values for the communities obtained with different algorithms. The evaluation metrics that are used for measuring quality of the communities incorporate…

社会与信息网络 · 计算机科学 2022-09-27 Soumita Das , Anupam Biswas

Community detection is a core tool for analyzing large realworld graphs. It is often used to derive additional local features of vertices and edges that will be used to perform a downstream task, yet the impact of community detection on…

社会与信息网络 · 计算机科学 2025-09-16 Shrabani Ghosh , Erik Saule

In this paper, we proposed a novel two-stage optimization method for network community partition, which is based on inherent network structure information. The introduced optimization approach utilizes the new network centrality measure of…

社会与信息网络 · 计算机科学 2019-07-16 Yiguang Bai , Sanyang Liu , Ke Yin , Jing Yuan

Community detection is of fundamental significance for understanding the topology characters and the spreading dynamics on complex networks. While random walk is widely used and is proven effective in many community detection algorithms,…

物理与社会 · 物理学 2021-02-03 Zhaole Wu , Xin Wang , Wenyi Fang , Longzhao Liu , Shaoting Tang , Hongwei Zheng , Zhiming Zheng

In the last decade, recent successes in deep clustering majorly involved the Mutual Information (MI) as an unsupervised objective for training neural networks with increasing regularisations. While the quality of the regularisations have…

Complex interactions between entities are often represented as edges in a network. In practice, the network is often constructed from noisy measurements and inevitably contains some errors. In this paper we consider the problem of…

统计理论 · 数学 2018-12-11 Can M. Le , Keith Levin , Elizaveta Levina

Community detection is an important research topic in complex networks. We present the employment of a genetic algorithm to detect communities in complex networks which is based on optimizing network modularity. It does not need any prior…

物理与社会 · 物理学 2007-11-06 Mursel Tasgin , Amac Herdagdelen , Haluk Bingol

With increasing volume of data being used across machine learning tasks, the capability to target specific subsets of data becomes more important. To aid in this capability, the recently proposed Submodular Mutual Information (SMI) has been…

机器学习 · 计算机科学 2024-10-28 Nathan Beck , Truong Pham , Rishabh Iyer

Community detection is one of the most important problems in network analysis. Among many algorithms proposed for this task, methods based on statistical inference are of particular interest: they are mathematically sound and were shown to…

社会与信息网络 · 计算机科学 2019-02-25 Liudmila Prokhorenkova , Alexey Tikhonov

We provide an information-theoretic framework for studying the generalization properties of machine learning algorithms. Our framework ties together existing approaches, including uniform convergence bounds and recent methods for adaptive…

机器学习 · 计算机科学 2020-06-22 Thomas Steinke , Lydia Zakynthinou

Community detection in social networks is a problem with considerable interest, since, discovering communities reveals hidden information about networks. There exist many algorithms to detect inherent community structures and recently few…

社会与信息网络 · 计算机科学 2019-11-21 Waqas Nawaz

Using an intuitive concept of what constitutes a meaningful community, a novel metric is formulated for detecting non-overlapping communities in undirected, weighted heterogeneous networks. This metric, modularity density, is shown to be…

社会与信息网络 · 计算机科学 2019-08-23 Swathi M. Mula , Gerardo Veltri

A community detection algorithm is considered to have a resolution limit if the scale of the smallest modules that can be resolved depends on the size of the analyzed subnetwork. The resolution limit is known to prevent some community…

物理与社会 · 物理学 2015-06-18 Tatsuro Kawamoto , Martin Rosvall

In this paper we present a novel strategy to discover the community structure of (possibly, large) networks. This approach is based on the well-know concept of network modularity optimization. To do so, our algorithm exploits a novel…

社会与信息网络 · 计算机科学 2012-02-13 Pasquale De Meo , Emilio Ferrara , Giacomo Fiumara , Alessandro Provetti