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An Efficient Grid Method for Continuous Skyline Computation over Dynamic Data Set
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 Title & Authors
An Efficient Grid Method for Continuous Skyline Computation over Dynamic Data Set
Li, He; Jang, Su-Min; Yoo, Kwan-Hee; Yoo, Jae-Soo;
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Skyline queries are an important new search capability for multi-dimensional databases. Most of the previous works have focused on processing skyline queries over static data set. However, most of the real applications deal with the dynamic data set. Since dynamic data set constantly changes as time passes, the continuous skyline computation over dynamic data set becomes ever more complicated. In this paper, we propose a multiple layer grids method for continuous skyline computation (MLGCS) that maintains multiple layer grids to manage the dynamic data set. The proposed method divides the work space into multiple layer grids and creates the skyline influence region in the grid of each layer. In the continuous environment, the continuous skyline queries are only handled when the updating data points are in the skyline influence region of each layer grid. Experiments based on various data distributions show that our proposed method outperforms the existing methods.
skyline query;continuous skyline query;dynamic data;grid method;
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Efficient Continuous Skyline Query Processing Scheme over Large Dynamic Data Sets,;;

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