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A novel approach for detecting multiple rumor sources in networks with partial observations

Author

Listed:
  • Zhao Zhang

    (Zhejiang Normal University)

  • Wen Xu

    (University of Texas at Dallas)

  • Weili Wu

    (University of Texas at Dallas)

  • Ding-Zhu Du

    (Ton Duc Thang University
    University of Texas at Dallas)

Abstract

Locating source of information diffusion in networks has very important applications such as locating the sources of epidemics, news/rumors in social networks or online computer virus. In this paper, we consider detecting multiple rumor sources from a deterministic point of view by modeling it as the set resolving set (SRS) problem. Let G be a network on n nodes. A node subset K is an SRS of G if all detectable node sets are distinguishable by K. The problem of multiple rumor source detection (MRSD) in the network can be modeled as finding an SRS K with the smallest cardinality. In this paper, we propose a polynomial-time greedy algorithm for finding a minimum SRS in a general network, achieving performance ratio $$O(\ln n)$$ O ( ln n ) . This is the first work establishing a relation between the MRSD problem and a deterministic concept of SRS, and a first work to give the minimum SRS problem a polynomial-time performance-guaranteed approximation algorithm. Our framework suggests a robust and efficient approach for estimating multiple rumor sources independent of diffusion models in networks.

Suggested Citation

  • Zhao Zhang & Wen Xu & Weili Wu & Ding-Zhu Du, 2017. "A novel approach for detecting multiple rumor sources in networks with partial observations," Journal of Combinatorial Optimization, Springer, vol. 33(1), pages 132-146, January.
    • Handle: RePEc:spr:jcomop:v:33:y:2017:i:1:d:10.1007_s10878-015-9939-x
    DOI: 10.1007/s10878-015-9939-x
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    References listed on IDEAS

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    1. Cristopher Moore & M. E. J. Newman, 2000. "Epidemics and Percolation in Small-World Networks," Working Papers 00-01-002, Santa Fe Institute.
    2. Ding-Zhu Du & Ker-I Ko & Xiaodong Hu, 2012. "Design and Analysis of Approximation Algorithms," Springer Optimization and Its Applications, Springer, number 978-1-4614-1701-9, September.
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    Cited by:

    1. Bin Liu & Yuxia Yan & Qizhi Fang & Junyu Dong & Weili Wu & Huijuan Wang, 2019. "Maximizing profit of multiple adoptions in social networks with a martingale approach," Journal of Combinatorial Optimization, Springer, vol. 38(1), pages 1-20, July.
    2. Suisheng Yu & Mingcai Li & Fengming Liu, 2017. "Rumor Identification with Maximum Entropy in MicroNet," Complexity, Hindawi, vol. 2017, pages 1-8, September.

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