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K-cores are maximal induced subgraphs where all vertices have degree at least k. These dense patterns have applications in community detection, network visualization and protein function prediction. However, k-cores can be quite unstable to…

社会与信息网络 · 计算机科学 2020-04-22 Sourav Medya , Tiyani Ma , Arlei Silva , Ambuj Singh

Elites are subgroups of individuals within a society that have the ability and means to influence, lead, govern, and shape societies. Members of elites are often well connected individuals, which enables them to impose their influence to…

物理与社会 · 物理学 2014-12-23 Bernat Corominas-Murtra , Benedikt Fuchs , Stefan Thurner

In many complex systems, the interactions between objects span multiple aspects. Multiplex networks are accurate paradigms to model such systems, where each edge is associated with a type. A key graph mining primitive is extracting dense…

社会与信息网络 · 计算机科学 2024-06-21 Farnoosh Hashemi , Ali Behrouz

Identifying influential spreaders is crucial for understanding and controlling spreading processes on social networks. Via assigning degree-dependent weights onto links associated with the ground node, we proposed a variant to a recent…

物理与社会 · 物理学 2015-01-16 Qian Li , Tao Zhou , Linyuan Lv , Duanbing Chen

With the development of complex networks, many researchers have paid greater attention to studying the control of complex networks over the last decade. Although some theoretical breakthroughs allow us to identify all driver nodes, we still…

物理与社会 · 物理学 2023-04-19 Zhengzhong Yuan , Jingwen Li , Chen Zhao , Li Hu , Zhesi Shen

Most centralities proposed for identifying influential spreaders on social networks to either spread a message or to stop an epidemic require the full topological information of the network on which spreading occurs. In practice, however,…

物理与社会 · 物理学 2017-12-13 Byungjoon Min , Fredrik Liljeros , Hernán A. Makse

In recent years there has been a growing interest in the role of networks and clusters in the global economy. Despite being a popular research topic in economics, sociology and urban studies, geographical clustering of human activity has…

物理与社会 · 物理学 2015-05-19 Roberto Catini , Dmytro Karamshuk , Orion Penner , Massimo Riccaboni

Network science has presented community detection as a valuable tool for revealing functional modules in complex systems rooted in the wiring architectures of complex networks. The varying procedures of community detection can produce,…

物理与社会 · 物理学 2025-04-11 Karsten N. Economou , Cassie R. Norman , Wendy C. Gentleman

Identifying influencers in a given social network has become an important research problem for various applications, including accelerating the spread of information in viral marketing and preventing the spread of fake news and rumors. The…

社会与信息网络 · 计算机科学 2025-01-24 Sho Tsugawa , Kohei Watabe

Online network crawling tasks require a lot of efforts for the researchers to collect the data. One of them is identification of important nodes, which has many applications starting from viral marketing to the prevention of disease spread.…

社会与信息网络 · 计算机科学 2024-03-22 Mikhail Drobyshevskiy , Denis Aivazov , Denis Turdakov , Alexander Yatskov , Maksim Varlamov , Danil Shayhelislamov

With a core-periphery structure of networks, core nodes are densely interconnected, peripheral nodes are connected to core nodes to different extents, and peripheral nodes are sparsely interconnected. Core-periphery structure composed of a…

物理与社会 · 物理学 2017-11-23 Sadamori Kojaku , Naoki Masuda

We analytically describe the architecture of randomly damaged uncorrelated networks as a set of successively enclosed substructures -- k-cores. The k-core is the largest subgraph where vertices have at least k interconnections. We find the…

统计力学 · 物理学 2009-11-11 S. N. Dorogovtsev , A. V. Goltsev , J. F. F. Mendes

We study core-periphery structure in networks using inference methods based on a flexible network model that allows for traditional onion-like cores within cores, but also for hierarchical tree-like structures and more general non-nested…

社会与信息网络 · 计算机科学 2023-08-25 Austin Polanco , M. E. J. Newman

As an important type of dynamics on complex networks, spreading is widely used to model many real processes such as the epidemic contagion and information propagation. One of the most significant research questions in spreading is to rank…

物理与社会 · 物理学 2015-12-18 Ye Sun , Long Ma , An Zeng , Wen-Xu Wang

Co-authorship networks, where nodes represent authors and edges represent co-authorship relations, are key to understanding the production and diffusion of knowledge in academia. Social constructs, biases (implicit and explicit), and…

社会与信息网络 · 计算机科学 2023-05-04 Ana Maria Jaramillo , Hywel T. P. Williams , Nicola Perra , Ronaldo Menezes

Evaluating node influence is fundamental for identifying key nodes in complex networks. Existing methods typically rely on generic indicators to rank node influence across diverse networks, thereby ignoring the individualized features of…

社会与信息网络 · 计算机科学 2024-05-14 Bingyu Zhu , Qingyun Sun , Jianxin Li , Daqing Li

Network robustness is a measure a network's ability to survive adversarial attacks. But not all parts of a network are equal. K-cores, which are dense subgraphs, are known to capture some of the key properties of many real-life networks.…

社会与信息网络 · 计算机科学 2020-12-21 Palash Dey , Suman Kalyan Maity , Sourav Medya , Arlei Silva

Complex networks are a powerful paradigm to model complex systems. Specific network models, e.g., multilayer networks, temporal networks, and signed networks, enrich the standard network representation with additional information to better…

数据结构与算法 · 计算机科学 2019-06-05 Edoardo Galimberti

The identification of important nodes in complex networks is an area of exciting growth due to its applications across various disciplines like disease controlling, community finding, data mining, network system controlling, just to name a…

社会与信息网络 · 计算机科学 2020-11-13 Qiuyan Shang , Yong Deng , Kang Hao Cheong

This study relates the local property of node dominance to local and global properties of a network. Iterative removal of dominated nodes yields a distributed algorithm for computing a core-periphery decomposition of a social network, where…

社会与信息网络 · 计算机科学 2015-09-25 Jennifer Gamble , Harish Chintakunta , Adam Wilkerson , Hamid Krim , Ananthram Swami