发明名称 |
Columnwise range K-nearest neighbors search queries |
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. |
申请公布号 |
EP2680168(A2) |
申请公布日期 |
2014.01.01 |
申请号 |
EP20130003242 |
申请日期 |
2013.06.25 |
申请人 |
SAP AG |
发明人 |
WEYERHAEUSER, CHRISTOPH;MINDNICH, TOBIAS;BAEUMGES, DANIEL;KAZMAIER, GERRIT SIMON |
分类号 |
G06F17/30 |
主分类号 |
G06F17/30 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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