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One major challenge of neuroscience is finding interesting structures in a seemingly disorganized neural activity. Often these structures have computational implications that help to understand the functional role of a particular brain…

神经元与认知 · 定量生物学 2023-09-01 Srdjan Ostojic , Stefano Fusi

Networks often exhibit structure at disparate scales. We propose a method for identifying community structure at different scales based on multiresolution modularity and consensus clustering. Our contribution consists of two parts. First,…

社会与信息网络 · 计算机科学 2018-02-01 Lucas G. S. Jeub , Olaf Sporns , Santo Fortunato

When we detect communities in temporal networks it is important to ask questions about how they change in time. Normalised Mutual Information (NMI) has been used to measure the similarity of communities when the nodes on a network do not…

社会与信息网络 · 计算机科学 2025-11-19 Peijie Zhong , Cheick Ba , Raúl Mondragón , Richard Clegg

To comprehend the multipartite organization of large-scale biological and social systems, we introduce a new information theoretic approach that reveals community structure in weighted and directed networks. The method decomposes a network…

物理与社会 · 物理学 2008-02-13 M. Rosvall , C. T. Bergstrom

The community structure of a complex network can be determined by finding the partitioning of its nodes that maximizes modularity. Many of the proposed algorithms for doing this work by recursively bisecting the network. We show that this…

计算机与社会 · 计算机科学 2015-05-13 Yudong Sun , Bogdan Danila , Kresimir Josic , Kevin E. Bassler

Consider a large social network with possibly severe degree heterogeneity and mixed-memberships. We are interested in testing whether the network has only one community or there are more than one communities. The problem is known to be…

统计方法学 · 统计学 2018-07-24 Jiashun Jin , Zheng Tracy Ke , Shengming Luo

Ensembles of artificial neural networks show improved generalization capabilities that outperform those of single networks. However, for aggregation to be effective, the individual networks must be as accurate and diverse as possible. An…

人工智能 · 计算机科学 2007-05-23 P. M. Granitto , P. F. Verdes , H. A. Ceccatto

A large body of work has been devoted to defining and identifying clusters or communities in social and information networks. We explore from a novel perspective several questions related to identifying meaningful communities in large…

数据结构与算法 · 计算机科学 2008-10-13 Jure Leskovec , Kevin J. Lang , Anirban Dasgupta , Michael W. Mahoney

A new method for identifying communities in networks is proposed. Reference nodes, either selected using a priory information about the network or according to relevant node measurements, are obtained so as to indicate putative communities.…

社会与信息网络 · 计算机科学 2019-11-06 Paulo J. P. de Souza , Cesar H. Comin , Luciano da F. Costa

We consider an alternate definition of community structure that is functionally motivated. We define network community structure-based on the function the network system is intended to perform. In particular, as a specific example of this…

物理与社会 · 物理学 2015-03-13 Sanjeev Chauhan , Michelle Girvan , Edward Ott

Models of the consensus of the individual state in social systems have been the subject of recent researches in the physics literature. We investigate how network structures coevolve with the individual state under the framework of social…

社会与信息网络 · 计算机科学 2020-05-15 Kaiqi Zhang , Zinan Lv , Haifeng Du , Honghu Zou

The international trade network is a complex system where multiple trade blocs with varying sizes coexist and overlap with each other. However, the resulting structures of community detection in trade networks are often inconsistent and…

物理与社会 · 物理学 2022-04-28 Wonguk Cho , Daekyung Lee , Beom Jun Kim

Nodes in real-world networks organize into densely linked communities where edges appear with high concentration among the members of the community. Identifying such communities of nodes has proven to be a challenging task mainly due to a…

社会与信息网络 · 计算机科学 2012-11-08 Jaewon Yang , Jure Leskovec

We consider the problem of finding communities or modules in directed networks. The most common approach to this problem in the previous literature has been simply to ignore edge direction and apply methods developed for community discovery…

数据分析、统计与概率 · 物理学 2008-03-22 E. A. Leicht , M. E. J. Newman

Topology and weights are closely related in weighted complex networks and this is reflected in their modular structure. We present a simple network model where the weights are generated dynamically and they shape the developing topology. By…

物理与社会 · 物理学 2008-01-30 J. M. Kumpula , J. -P. Onnela , J. Saramaki , K. Kaski , J. Kertesz

Communities are a common and widely studied structure in networks, typically under the assumption that the network is fully and correctly observed. In practice, network data are often collected by querying nodes about their connections. In…

统计方法学 · 统计学 2021-03-22 Tianxi Li , Elizaveta Levina , Ji Zhu

Community structures detection in signed network is very important for understanding not only the topology structures of signed networks, but also the functions of them, such as information diffusion, epidemic spreading, etc. In this paper,…

社会与信息网络 · 计算机科学 2018-07-24 Chao Yan , Hui-Min Cheng , Xin Liu , Zhong-Yuan Zhang

Voting algorithms have been widely used as consensus protocols in the realization of fault-tolerant systems. These algorithms are best suited for distributed systems of nodes with low computational power or heterogeneous networks, where…

分布式、并行与集群计算 · 计算机科学 2020-12-16 Sebastian Müller , Andreas Penzkofer , Darcy Camargo , Olivia Saa

Community structure analysis is a powerful tool for social networks, which can simplify their topological and functional analysis considerably. However, since community detection methods have random factors and real social networks obtained…

物理与社会 · 物理学 2015-05-11 Hui-Jia Li , J J. Daniels

Community detection is considered as a fundamental task in analyzing social networks. Even though many techniques have been proposed for community detection, most of them are based exclusively on the connectivity structures. However, there…

社会与信息网络 · 计算机科学 2019-12-25 Hadi Zare , Mahdi Hajiabadi , Mahdi Jalili