Dimensional testing for reverse k-nearest neighbor search

Guillaume Casanova, Elias Englmeier, Michael E. Houle, Peer Kröger, Michael Nett, Erich Schubert, Arthur Zimek

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    Abstract

    Given a query object q, reverse k-nearest neighbor (RkNN) search aims to locate those objects of the database that have q among their k-nearest neighbors. In this paper, we propose an approximation method for solving RkNN queries, where the pruning operations and termination tests are guided by a characterization of the intrinsic dimensionality of the data. The method can accommodate any index structure supporting incremental (forward) nearest-neighbor search for the generation and verification of candidates, while avoiding impractically-high preprocessing costs. We also provide experimental evidence that our method significantly outperforms its competitors in terms of the tradeoff between execution time and the quality of the approximation. Our approach thus addresses many of the scalability issues surrounding the use of previous methods in data mining.
    Original languageEnglish
    JournalProceedings of the VLDB Endowment
    Volume10
    Issue number7
    Pages (from-to)769-780
    ISSN2150-8097
    DOIs
    Publication statusPublished - 2017
    Event43rd International Conference on Very Large Data Bases - Technical University of Munich, Munich, Germany
    Duration: 28. Aug 20171. Sep 2017
    Conference number: 43

    Conference

    Conference43rd International Conference on Very Large Data Bases
    Number43
    LocationTechnical University of Munich
    Country/TerritoryGermany
    CityMunich
    Period28/08/201701/09/2017

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