Summarizing scale-free networks based on virtual and real links

Yijun Bei, Zhen Lin and Deren Chen

Physica A: Statistical Mechanics and its Applications, 2016, vol. 444, issue C, 360-372

Abstract: Techniques to summarize and cluster graphs are indispensable to understand the internal characteristics of large complex networks. However, existing methods that analyze graphs mainly focus on aggregating strong-interaction vertices into the same group without considering the node properties, particularly multi-valued attributes. This study aims to develop a unified framework based on the concept of a virtual graph by integrating attributes and structural similarities. We propose a summarizing graph based on virtual and real links (SGVR) approach to aggregate similar nodes in a scale-free graph into k non-overlapping groups based on user-selected attributes considering both virtual links (attributes) and real links (graph structures). An effective data structure called HB-Graph is adopted to adjust the subgroups and optimize the grouping results. Extensive experiments are carried out on actual and synthetic datasets. Results indicate that our proposed method is both effective and efficient.

Keywords: Graphs; Real relationships; Scale-free networks; Summarizing; Virtual relationships (search for similar items in EconPapers)
Date: 2016
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:444:y:2016:i:c:p:360-372

DOI: 10.1016/j.physa.2015.08.048

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