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k-NN Search in Time-Dependent Road Networks

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Encyclopedia of GIS

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Synonyms

Location Based Services; Nearest Neighbor Search; Route Planning; Spatial Networks; Spatiotemporal Networks; Time-Dependent Road Networks

Definition

The ever-growing popularity of online map services and their wide deployment in smartphones and car-navigation systems have led to extensive use of location-based services. One of the most popular classes of such services is k-nearest neighbor (kNN) queries where users search for geographical points of interests (e.g., restaurants) and the corresponding directions and travel times to these locations in road networks. The online nature of these services requires almost instant response time. Accordingly, many algorithms have been developed to speed up kNN search in road networks by using a variety of precomputation techniques. However, all the existing approaches and commercial services for kNN search in road networks make the simplifying assumption that the fastest path between any two nodes in the network is unique by assuming...

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Author information

Authors and Affiliations

  1. Computer Science Department, University of Southern California, 90089-0781, Los Angeles, CA, USA

    Ugur Demiryurek & Cyrus Shahabi

  2. Information Laboratory (InfoLab), Computer Science Department, University of Southern California, 90089-0781, Los Angeles, CA, USA

    Cyrus Shahabi

  3. University of Southern California, Los Angeles, CA, USA

    Cyrus Shahabi

  4. Integrated Media Systems Center, University of Southern California, Los Angeles, CA, USA

    Cyrus Shahabi

Authors
  1. Ugur Demiryurek
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  2. Cyrus Shahabi
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Corresponding author

Correspondence to Ugur Demiryurek .

Editor information

Editors and Affiliations

  1. University of Minnesota, Minneapolis, MN, USA

    Shashi Shekhar

  2. Management Science and Information Systems Department, Rutgers Business School, Rutgers, The State University of New Jersey, Newark, NJ, USA

    Hui Xiong

  3. Department of Management Sciences, Tippie College of Business, University of Iowa, Iowa City, IA, USA

    Xun Zhou

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© 2017 Springer International Publishing AG

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Demiryurek, U., Shahabi, C. (2017). k-NN Search in Time-Dependent Road Networks. In: Shekhar, S., Xiong, H., Zhou, X. (eds) Encyclopedia of GIS. Springer, Cham. https://doi.org/10.1007/978-3-319-17885-1_1528

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