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• W2250793904 abstract "In most spatial data management applications, objects are represented in terms of their coordinates in a 2-dimensional space and search queries in this space are processed using spatial index structures. On the other hand, bitmap-based indexing, especially thanks to the compression opportunities bitmaps provide, has been shown to be highly effective for query processing workloads including selection and aggregation operations. In this paper, we show that bitmap-based indexing can also be highly effective for managing spatial data sets. More specifically, we propose a novel compressed spatial hierarchical bitmap (cSHB) index structure to support spatial range queries. We consider query workloads involving multiple range queries over spatial data and introduce and consider the problem of bitmap selection for identifying the appropriate subset of the bitmap files for processing the given spatial range query workload. We develop cost models for compressed domain range query processing and present query planning algorithms that not only select index nodes for query processing, but also associate appropriate bitwise logical operations to identify the data objects satisfying the range queries in the given workload. Experiment results confirm the efficiency and effectiveness of the proposed compressed spatial hierarchical bitmap (cSHB) index structure and the range query planning algorithms in supporting spatial range query workloads." @default.
• W2250793904 created "2016-06-24" @default.
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• W2250793904 date "2015-08-01" @default.
• W2250793904 modified "2023-09-25" @default.
• W2250793904 title "Compressed spatial hierarchical bitmap (cSHB) indexes for efficiently processing spatial range query workloads" @default.
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• W2250793904 doi "https://doi.org/10.14778/2824032.2824038" @default.
• W2250793904 hasPublicationYear "2015" @default.
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