Patents by Inventor Bing Tian Dai

Bing Tian Dai has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method and apparatus for rapid identification of column heterogeneity
    Patent number: 8176016
    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.
    Type: Grant
    Filed: November 17, 2006
    Date of Patent: May 8, 2012
    Assignee: AT&T Intellectual Property II, L.P.
    Inventors: Bing Tian Dai, Nikolaos Koudas, Beng Chin Ooi, Divesh Srivastava, Suresh Venkatasubramanian