中国物理B ›› 2017, Vol. 26 ›› Issue (1): 18902-018902.doi: 10.1088/1674-1056/26/1/018902

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

Entropy-based link prediction in weighted networks

Zhongqi Xu(许忠奇), Cunlai Pu(濮存来), Rajput Ramiz Sharafat, Lunbo Li(李伦波), Jian Yang(杨健)   

  1. 1. Department of Computer Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, China;
    2. Department of Industrial and Systems Engineering, University of Florida, Gainesville 32611, USA
  • 收稿日期:2016-07-18 修回日期:2016-10-25 出版日期:2017-01-05 发布日期:2017-01-05
  • 通讯作者: Cunlai Pu E-mail:pucunlai@njust.edu.cn
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 61201173 and 61304154), the Specialized Research Fund for the Doctoral Program of Higher Education of China (Grant No. 20133219120032), the Postdoctoral Science Foundation of China (Grant No. 2013M541673), and China Postdoctoral Science Special Foundation (Grant No. 2015T80556).

Entropy-based link prediction in weighted networks

Zhongqi Xu(许忠奇)1, Cunlai Pu(濮存来)1,2, Rajput Ramiz Sharafat1, Lunbo Li(李伦波)1, Jian Yang(杨健)1   

  1. 1. Department of Computer Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, China;
    2. Department of Industrial and Systems Engineering, University of Florida, Gainesville 32611, USA
  • Received:2016-07-18 Revised:2016-10-25 Online:2017-01-05 Published:2017-01-05
  • Contact: Cunlai Pu E-mail:pucunlai@njust.edu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 61201173 and 61304154), the Specialized Research Fund for the Doctoral Program of Higher Education of China (Grant No. 20133219120032), the Postdoctoral Science Foundation of China (Grant No. 2013M541673), and China Postdoctoral Science Special Foundation (Grant No. 2015T80556).

摘要: Information entropy has been proved to be an effective tool to quantify the structural importance of complex networks. In a previous work[Xu et al. Physica A, 456 294 (2016)], we measure the contribution of a path in link prediction with information entropy. In this paper, we further quantify the contribution of a path with both path entropy and path weight, and propose a weighted prediction index based on the contributions of paths, namely weighted path entropy (WPE), to improve the prediction accuracy in weighted networks. Empirical experiments on six weighted real-world networks show that WPE achieves higher prediction accuracy than three other typical weighted indices.

关键词: link prediction, weighted networks, information entropy

Abstract: Information entropy has been proved to be an effective tool to quantify the structural importance of complex networks. In a previous work[Xu et al. Physica A, 456 294 (2016)], we measure the contribution of a path in link prediction with information entropy. In this paper, we further quantify the contribution of a path with both path entropy and path weight, and propose a weighted prediction index based on the contributions of paths, namely weighted path entropy (WPE), to improve the prediction accuracy in weighted networks. Empirical experiments on six weighted real-world networks show that WPE achieves higher prediction accuracy than three other typical weighted indices.

Key words: link prediction, weighted networks, information entropy

中图分类号:  (Networks and genealogical trees)

  • 89.75.Hc
89.75.Fb (Structures and organization in complex systems) 89.20.Hh (World Wide Web, Internet)