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Uncertain Subgraph Query Processing over Uncertain Graphs

  • Wenjing Ruan
  • Chaokun Wang
  • Lu Han
  • Zhuo Peng
  • Yiyuan Bai
Part of the Lecture Notes in Computer Science book series (LNCS, volume 7808)

Abstract

In some real-world applications, data cannot be measured accurately. Uncertain graphs emerge when this kind of data is modeled by graph data structures. When the graph database is uncertain, our query is highly possibly uncertain too. All of the prior works do not consider the uncertainty of the query. In this paper, we propose a new algorithm called Mutual-Match to solve the problem of uncertain subgraph query under the situation where both the graph dataset and the query are uncertain. Considering that the subgraph isomorphism verification is an NP-hard problem, and it will be more complex on uncertain graph data, the Mutual-Match algorithm uses MapReduce processes to find out all the subgraph matches and can adapt to dynamic graphs well. Experimental results on both real-world and synthetic datasets show the correctness and effectiveness of our proposed methods.

Keywords

Uncertain subgraph query uncertain graphs mutual-match dynamic graphs mapreduce 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  • Wenjing Ruan
    • 1
  • Chaokun Wang
    • 1
    • 2
    • 4
  • Lu Han
    • 1
  • Zhuo Peng
    • 1
  • Yiyuan Bai
    • 1
    • 3
  1. 1.School of SoftwareTsinghua UniversityBeijingChina
  2. 2.Tsinghua National Laboratory for Information Science and TechnologyTsinghua UniversityChina
  3. 3.Department of Computer Science and TechnologyTsinghua UniversityChina
  4. 4.Key Laboratory of Intelligent Information Processing, Institute of Computing TechnologyChinese Academy of SciencesChina

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