发明名称 |
SELECTIVITY ESTIMATION OF SET SIMILARITY SELECTION QUERIES |
摘要 |
The invention relates to a system and/or methodology for selectivity estimation of set similarity queries. More specifically, the invention relates to a selectivity estimation technique employing hashed sampling. The invention providing for samples constructed a priori that can efficiently and quickly provide accurate estimates for arbitrary queries, and can be updated efficiently as well.
|
申请公布号 |
US2010125559(A1) |
申请公布日期 |
2010.05.20 |
申请号 |
US20080274546 |
申请日期 |
2008.11.20 |
申请人 |
AT&T INTELLECTUAL PROPERTY I, L.P. |
发明人 |
HADJIELEFTHERIOU MARIOS;KOUDAS NICK;SRIVASTAVA DIVESH;YU XIAOHUI |
分类号 |
G06F7/06;G06F17/30 |
主分类号 |
G06F7/06 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|