Patents by Inventor Hsiuying Yen Cheng

Hsiuying Yen Cheng 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).

  • Cost-based subquery correlation and decorrelation
    Patent number: 7840552
    Abstract: Techniques are provided that determine that a query includes at least one subquery that may be correlated or decorrelated. An internal representation of the query that represents the subquery in both correlated and decorrelated form is generated, wherein the internal representation includes at least one virtual table.
    Type: Grant
    Filed: April 16, 2008
    Date of Patent: November 23, 2010
    Assignee: International Business Machines Corporation
    Inventors: Thomas Abel Beavin, Mengchu Cai, Yao-Ching Stephen Chen, Hsiuying Yen Cheng, Fen-Ling Lin, Irene Ching-Hua Liu, Jerry Mukai, Demai Ni, Yoichi Tsuji, Li Xia, Ying Zeng
  • COST-BASED SUBQUERY CORRELATION AND DECORRELATION
    Publication number: 20080215534
    Abstract: Techniques are provided that determine that a query includes at least one subquery that may be correlated or decorrelated. An internal representation of the query that represents the subquery in both correlated and decorrelated form is generated, wherein the internal representation includes at least one virtual table.
    Type: Application
    Filed: April 16, 2008
    Publication date: September 4, 2008
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Thomas Abel BEAVIN, Mengchu CAI, Yao-Ching Stephen CHEN, Hsiuying Yen CHENG, Fen-Ling LIN, Irene Ching-Hua LIU, Jerry MUKAI, Demai NI, Yoichi TSUJI, Li XIA, Ying ZENG
  • Cost-based subquery correlation and decorrelation
    Patent number: 7376646
    Abstract: Techniques are provided that determine that a query includes at least one subquery that may be correlated or decorrelated. An internal representation of the query that represents the subquery in both correlated and decorrelated form is generated, wherein the internal representation includes at least one virtual table.
    Type: Grant
    Filed: June 17, 2005
    Date of Patent: May 20, 2008
    Assignee: International Business Machines Corporation
    Inventors: Thomas Abel Beavin, Mengchu Cai, Yao-Ching Stephen Chen, Hsiuying Yen Cheng, Fen-Ling Lin, Irene Ching-Hua Liu, Jerry Mukai, Demai Ni, Yoichi Tsuji, Li Xia, Ying Zeng