中国物理B ›› 2017, Vol. 26 ›› Issue (3): 38902-038902.doi: 10.1088/1674-1056/26/3/038902

• INTERDISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY • 上一篇    下一篇

Link prediction in complex networks via modularity-based belief propagation

Darong Lai(赖大荣), Xin Shu(舒欣), Christine Nardini   

  1. 1 School of Computer Science and Engineering, Southeast University, Nanjing 211189, China;
    2 Key Laboratory of Computer Network and Information Integration of Ministry of Education, Southeast University, Nanjing 210096, China;
    3 College of Information Science and Technology, Nanjing Agricultural University, Nanjing 210095, China;
    4 CNR-IAC "Mauro Picone" Via dei Taurini 19, 00185 Roma, Italy;
    5 Personalgenomics, Via delle Grazie, Verona, Italy
  • 收稿日期:2016-08-26 修回日期:2016-11-25 出版日期:2017-03-05 发布日期:2017-03-05
  • 通讯作者: Darong Lai E-mail:darong.lai@gmail.com
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grants No. 61202262), the Natural Science Foundation of Jiangsu Province, China (Grants No. BK2012328), and the Specialized Research Fund for the Doctoral Program of Higher Education of China (Grants No. 20120092120034).

Link prediction in complex networks via modularity-based belief propagation

Darong Lai(赖大荣)1,2, Xin Shu(舒欣)3, Christine Nardini4,5   

  1. 1 School of Computer Science and Engineering, Southeast University, Nanjing 211189, China;
    2 Key Laboratory of Computer Network and Information Integration of Ministry of Education, Southeast University, Nanjing 210096, China;
    3 College of Information Science and Technology, Nanjing Agricultural University, Nanjing 210095, China;
    4 CNR-IAC "Mauro Picone" Via dei Taurini 19, 00185 Roma, Italy;
    5 Personalgenomics, Via delle Grazie, Verona, Italy
  • Received:2016-08-26 Revised:2016-11-25 Online:2017-03-05 Published:2017-03-05
  • Contact: Darong Lai E-mail:darong.lai@gmail.com
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grants No. 61202262), the Natural Science Foundation of Jiangsu Province, China (Grants No. BK2012328), and the Specialized Research Fund for the Doctoral Program of Higher Education of China (Grants No. 20120092120034).

摘要: Link prediction aims at detecting missing, spurious or evolving links in a network, based on the topological information and/or nodes' attributes of the network. Under the assumption that the likelihood of the existence of a link between two nodes can be captured by nodes' similarity, several methods have been proposed to compute similarity directly or indirectly, with information on node degree. However, correctly predicting links is also crucial in revealing the link formation mechanisms and thus in providing more accurate modeling for networks. We here propose a novel method to predict links by incorporating stochastic-block-model link generating mechanisms with node degree. The proposed method first recovers the underlying block structure of a network by modularity-based belief propagation, and based on the recovered block structural information it models the link likelihood between two nodes to match the degree sequence of the network. Experiments on a set of real-world networks and synthetic networks generated by stochastic block model show that our proposed method is effective in detecting missing, spurious or evolving links of networks that can be well modeled by a stochastic block model. This approach efficiently complements the toolbox for complex network analysis, offering a novel tool to model links in stochastic block model networks that are fundamental in the modeling of real world complex networks.

关键词: link prediction, complex network, belief propagation, modularity

Abstract: Link prediction aims at detecting missing, spurious or evolving links in a network, based on the topological information and/or nodes' attributes of the network. Under the assumption that the likelihood of the existence of a link between two nodes can be captured by nodes' similarity, several methods have been proposed to compute similarity directly or indirectly, with information on node degree. However, correctly predicting links is also crucial in revealing the link formation mechanisms and thus in providing more accurate modeling for networks. We here propose a novel method to predict links by incorporating stochastic-block-model link generating mechanisms with node degree. The proposed method first recovers the underlying block structure of a network by modularity-based belief propagation, and based on the recovered block structural information it models the link likelihood between two nodes to match the degree sequence of the network. Experiments on a set of real-world networks and synthetic networks generated by stochastic block model show that our proposed method is effective in detecting missing, spurious or evolving links of networks that can be well modeled by a stochastic block model. This approach efficiently complements the toolbox for complex network analysis, offering a novel tool to model links in stochastic block model networks that are fundamental in the modeling of real world complex networks.

Key words: link prediction, complex network, belief propagation, modularity

中图分类号:  (Networks and genealogical trees)

  • 89.75.Hc
02.50.Tt (Inference methods) 89.20.Ff (Computer science and technology)