Spatial Skyline Queries: An Efficient Geometric Algorithm

  • Authors:
  • Wanbin Son;Mu-Woong Lee;Hee-Kap Ahn;Seung-Won Hwang

  • Affiliations:
  • Pohang University of Science and Technology, Korea;Pohang University of Science and Technology, Korea;Pohang University of Science and Technology, Korea;Pohang University of Science and Technology, Korea

  • Venue:
  • SSTD '09 Proceedings of the 11th International Symposium on Advances in Spatial and Temporal Databases
  • Year:
  • 2009

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Abstract

As more data-intensive applications emerge, advanced retrieval semantics, such as ranking and skylines, have attracted attention. Geographic information systems are such an application with massive spatial data. Our goal is to efficiently support skyline queries over massive spatial data. To achieve this goal, we first observe that the best known algorithm VS 2, despite its claim, may fail to deliver correct results. In contrast, we present a simple and efficient algorithm that computes the correct results. To validate the effectiveness and efficiency of our algorithm, we provide an extensive empirical comparison of our algorithm and VS 2 in several aspects.