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Erschienen in:
2011 | OriginalPaper | Buchkapitel
CuttingPlane: An Efficient Algorithm for Three-Dimensional Spatial Skyline Queries Based on Dynamic Scan Theory
verfasst von : Meng Zhao, Jing Yu
Erschienen in: Web Information Systems and Mining
Verlag: Springer Berlin Heidelberg
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Skyline operator and skyline computation play an important role in database communication, decision support, data visualization, spatial database and so on. In this paper we firstly analyze the existing methods, point out some problems in progressive disposal, query efficiency and convenience of following user selection. Secondly, we propose and prove a theorem for pruning query space based on dynamic scan theorem, based on the thought of the theorem, we propose a more efficient algorithm-dynamic cutting plane scan queries for skyline queries, and analyze and verify the feasibility, efficiency and veracity of the algorithm through instance and experiment.