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Distributed Grid-Based K Nearest Neighbour Query Processing Over Moving Objects

  • Min Yang
  • Yang LiuEmail author
  • Ziqiang Yu
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 9098)

Abstract

K-nearest neighbour (k-NN) queries over moving objects is a classic problem with applications to a wide spectrum of location-based services. Abundant algorithms exist for solving this problem in a centralized setting using a single server, but many of them become inapplicable when distributed processing is called for tackling the increasingly large scale of data. To address this challenge, we propose a distributed grid-based solution to k-NN query processing over moving objects. First, we design a new grid-based index called Block Grid Index (BGI), which indexes moving objects using a two-layer structure and can be easily constructed and maintained in a distributed setting. We then propose a distributed k-NN algorithm based on BGI, called DBGKNN. We implement BGI and DBGKNN in the commonly used master-worker mode, and the efficiency of our solution is verified by extensive experiments with millions of nodes.

Keywords

Query Processing Query Time Baseline Method Query Object Split Operation 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer International Publishing Switzerland 2015

Authors and Affiliations

  1. 1.School of Computer Science and TechnologyShandong UniversityJinanChina

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