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CoreCube: Core Decomposition in Multilayer Graphs

  • Boge Liu
  • Fan ZhangEmail author
  • Chen Zhang
  • Wenjie Zhang
  • Xuemin Lin
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 11881)

Abstract

Many real-life complex networks are modelled as multilayer graphs where each layer records a certain kind of interaction among entities. Despite the powerful modelling functionality, the decomposition on multilayer graphs remains unclear and inefficient. As a well-studied graph decomposition, core decomposition is efficient on a single layer graph with a variety of applications on social networks, biology, finance and so on. Nevertheless, core decomposition on multilayer graphs is much more challenging due to the various combinations of layers. In this paper, we propose efficient algorithms to compute the CoreCube which records the core decomposition on every combination of layers. We also devise a hybrid storage method that achieves a superior trade-off between the size of CoreCube and the query time. Extensive experiments on 8 real-life datasets demonstrate our algorithms are effective and efficient.

Keywords

Core decomposition Multilayer graph Graph processing 

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Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  • Boge Liu
    • 1
  • Fan Zhang
    • 2
    Email author
  • Chen Zhang
    • 1
  • Wenjie Zhang
    • 1
  • Xuemin Lin
    • 1
  1. 1.University of New South WalesSydneyAustralia
  2. 2.Guangzhou UniversityGuangzhouChina

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