Invention Grant
- Patent Title: Method and apparatus for rapid identification of column heterogeneity
- Patent Title (中): 用于快速鉴定柱异质性的方法和装置
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Application No.: US11601416Application Date: 2006-11-17
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Publication No.: US08176016B1Publication Date: 2012-05-08
- Inventor: Bing Tian Dai , Nikolaos Koudas , Beng Chin Ooi , Divesh Srivastava , Suresh Venkatasubramanian
- Applicant: Bing Tian Dai , Nikolaos Koudas , Beng Chin Ooi , Divesh Srivastava , Suresh Venkatasubramanian
- Applicant Address: US GA Atlanta
- Assignee: AT&T Intellectual Property II, L.P.
- Current Assignee: AT&T Intellectual Property II, L.P.
- Current Assignee Address: US GA Atlanta
- Main IPC: G06F7/00
- IPC: G06F7/00 ; G06F17/00
Abstract:
A method and apparatus for rapid identification of column heterogeneity in databases are disclosed. For example, the method receives data associated with a column in a database. The method computes a cluster entropy for the data as a measure of data heterogeneity and then determines whether said data is heterogeneous in accordance with the cluster entropy.
Public/Granted literature
- US1216064A Worm-drive for railway-car trucks. Public/Granted day:1917-02-13
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