发明授权
- 专利标题: Estimating a number of unique values in a list
- 专利标题(中): 估计列表中的一些唯一值
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申请号: US12907325申请日: 2010-10-19
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公开(公告)号: US09158815B2公开(公告)日: 2015-10-13
- 发明人: Choudur Lakshminarayan , Joe Robert Hill
- 申请人: Choudur Lakshminarayan , Joe Robert Hill
- 申请人地址: US TX Houston
- 专利权人: Hewlett-Packard Development Company, L.P.
- 当前专利权人: Hewlett-Packard Development Company, L.P.
- 当前专利权人地址: US TX Houston
- 代理商 Michael A. Dryja
- 主分类号: G06F7/00
- IPC分类号: G06F7/00 ; G06F17/30 ; G06F17/18
摘要:
A method determines a number of unique values in a sample of a list of values and estimates a number of the unique values for an unsampled portion of the list of values. The method estimates a number of the unique values in the list by adding the number of unique values in the sample to the number of the unique values in the unsampled portion.
公开/授权文献
- US20120095989A1 Estimating a Number of Unique Values in a List 公开/授权日:2012-04-19