Neighbor-Based Link Prediction with Edge Uncertainty

  • Chi ZhangEmail author
  • Osmar R. Zaïane
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 11440)


In this work, we are concerned with uncertain networks and focus on the problem of link prediction with edge uncertainty. Networks with edge uncertainty are networks where connections between nodes are observed with some probability. We propose the uncertain version of the popular neighbors-based metrics for link prediction. The metrics are developed by considering all possible worlds generated by the uncertain network. We state that by taking all possible worlds of the uncertain network into account, the performance of link prediction can be improved. Since uncertain edges result in a very large number of possible worlds, we propose an efficient divide and conquer algorithm to reduce time complexity and calculate these metrics. Finally, we evaluate our metrics using existing ground truth to show the effectiveness of our proposed approach against other popular link prediction methods.


Social network analysis Link prediction Uncertain networks 


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© Springer Nature Switzerland AG 2019

Authors and Affiliations

  1. 1.Department of Computing ScienceUniversity of AlbertaEdmontonCanada

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