发明名称 |
ESTIMATION OF UNIQUE DATABASE VALUES |
摘要 |
Estimation of unique values in a database can be performed where a data field having multiple information values is provided in the database. The data field can be partitioned into multiple intervals such that each interval includes a range of information values. An interval specific Bloom filter can be calculated for each of the multiple intervals. A binary Bloom filter value can be calculated for an information value within an interval specific Bloom filter. The binary Bloom filter value can represent whether the information value is unique. A number of unique values in the database can be determined based on calculated binary Bloom filter values. |
申请公布号 |
US2012084287(A1) |
申请公布日期 |
2012.04.05 |
申请号 |
US20100895683 |
申请日期 |
2010.09.30 |
申请人 |
LAKSHMINARAYAN CHOUDUR;KOSURU RAMAKUMAR |
发明人 |
LAKSHMINARAYAN CHOUDUR;KOSURU RAMAKUMAR |
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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