Resisting structural re-identification in anonymized social networks

Resisting structural re-identification in anonymized social networks We identify privacy risks associated with releasing network datasets and provide an algorithm that mitigates those risks. A network dataset is a graph representing entities connected by edges representing relations such as friendship, communication or shared activity. Maintaining privacy when publishing a network dataset is uniquely challenging because an individual’s network context can be used to identify them even if other identifying information is removed. In this paper, we introduce a parameterized model of structural knowledge available to the adversary and quantify the success of attacks on individuals in anonymized networks. We show that the risks of these attacks vary based on network structure and size and provide theoretical results that explain the anonymity risk in random networks. We then propose a novel approach to anonymizing network data that models aggregate network structure and allows analysis to be performed by sampling from the model. The approach guarantees anonymity for entities in the network while allowing accurate estimates of a variety of network measures with relatively little bias. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png The VLDB Journal Springer Journals

Resisting structural re-identification in anonymized social networks

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Publisher
Springer-Verlag
Copyright
Copyright © 2010 by Springer-Verlag
Subject
Computer Science; Database Management
ISSN
1066-8888
eISSN
0949-877X
D.O.I.
10.1007/s00778-010-0210-x
Publisher site
See Article on Publisher Site

References

  • Anonymizing bipartite graph data using safe groupings
    Cormode, G.; Srivastava, D.; Yu, T.; Zhang, Q.
  • An efficient algorithm for graph isomorphism
    Corneil, D.G.; Gotlieb, C.C.
  • Resisting structural re-identification in anonymized social networks
    Hay, M.; Miklau, G.; Jensen, D.D.; Towsley, D.F.; Weis, P.

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