Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/69103
標題: Optimizing storage utilization in R-tree dynamic index structure for spatial databases
作者: Huang, P.W.
黃博惠
Lin, P.L.
Lin, H.Y.
關鍵字: spatial database;window query;spatial object;compact R-tree;storage;utilization;search performance;retrieval
Project: Journal of Systems and Software
期刊/報告no:: Journal of Systems and Software, Volume 55, Issue 3, Page(s) 291-299.
摘要: 
Spatial databases have been increasingly and widely used in recent years. The R-tree proposed by Guttman is probably the most popular dynamic index structure for efficiently retrieving objects from a spatial database according to their spatial locations. However, experiments show that only about 70% storage utilization can be achieved in Guttman's R-tree and its variants. In this paper, we propose a compact R-tree structure which can achieve almost 100% storage utilization. Our experiments also show that the search performance of compact R-trees is very competitive as compared to Guttman's R-trees. In addition, the overhead cost of building a compact R-tree is much lower than that of a Guttman's R-tree because the frequency of node splitting is reduced significantly. (C) 2001 Elsevier Science Inc. All rights reserved.
URI: http://hdl.handle.net/11455/69103
ISSN: 0164-1212
DOI: 10.1016/s0164-1212(00)00078-9
Appears in Collections:理學院

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