Patents by Inventor Difu Su

Difu Su 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).

  • Systems and methods for collaborative tag suggestions
    Patent number: 7685198
    Abstract: A set of general criteria have been defined to improve the efficacy of a tagging system, and have been applied to present collaborative tag suggestions to a user. The collaborative tag suggestions are based on a goodness measure for tags derived from collective user authorities to combat spam. The goodness measure is iteratively adjusted by a reward-penalty algorithm during tag selection. The collaborative tag suggestions can also incorporate other sources of tags, e.g., content-based auto-generated tags.
    Type: Grant
    Filed: January 25, 2006
    Date of Patent: March 23, 2010
    Assignee: Yahoo! Inc.
    Inventors: Zhichen Xu, Yun Fu, Jianchang Mao, Difu Su
  • Systems and methods for collaborative tag suggestions
    Publication number: 20070174247
    Abstract: A set of general criteria have been defined to improve the efficacy of a tagging system, and have been applied to present collaborative tag suggestions to a user. The collaborative tag suggestions are based on a goodness measure for tags derived from collective user authorities to combat spam. The goodness measure is iteratively adjusted by a reward-penalty algorithm during tag selection. The collaborative tag suggestions can also incorporate other sources of tags, e.g., content-based auto-generated tags.
    Type: Application
    Filed: January 25, 2006
    Publication date: July 26, 2007
    Inventors: Zhichen Xu, Yun Fu, Jianchang Mao, Difu Su