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Columnwise range k-nearest neighbors search queries
Columnwise range k-nearest neighbors search queries
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机译:列范围K最近邻居搜索查询
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摘要
A range k-nearest neighbor search query of a database is processed by first defining an inner rectangle bounded within a circle around a center point specified by the range k-nearest neighbor search query. Thereafter, a distance to the center point is calculated for each point within the inner rectangle. Query results are returned if k or more points are within the inner rectangle. Otherwise, at least one additional query is executed. Related apparatus, systems, techniques and articles are also described.
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