Keyword: Euler Histogram : Search

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Search name	Searched On	Run search
Keyword: Euler Histogram (1)	1 Apr 2025	Run
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chapterNo Access
THE SELECTIVITY ESTIMATION OF SPATIAL QUERY BASED ON SIMPLE POLYGON
- Ping GUO,
- Haizhu Chen, and
- Zhonglin CHEN
Proceedings of the 11th Joint International Computer Conference01 Oct 2005
Preview Abstract
Euler Histogram is one of useful methods to estimate the number of the spatial objects that intersect with the query window. Several cost models of spatial queries are based on it. In this paper, we present a new mothed SP_Histogram to estimate the selectivity of spatial object. In SP_Histogram, spatial object is approximated by Simple Polygon, and it have higher calculative accurate than Euler Histogram and Closed_Euler Histogram. The correctness of SP_Histogram is also proved.

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