Patents by Inventor Congkai Sun

Congkai Sun 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).

  • Forum mining for suspicious link spam sites detection
    Patent number: 8219549
    Abstract: An anti-spam technique for protecting search engine ranking is based on mining search engine optimization (SEO) forums. The anti-spam technique collects webpages such as SEO forum posts from a list of suspect spam websites, and extracts suspicious link exchange URLs and corresponding link formation from the collected webpages. A search engine ranking penalty is then applied to the suspicious link exchange URLs. The penalty is at least partially determined by the link information associated with the respective suspicious link exchange URL. To detect more suspicious link exchange URLs, the technique may propagate one or more levels from a seed set of suspicious link exchange URLs generated by mining SEO forums.
    Type: Grant
    Filed: February 6, 2008
    Date of Patent: July 10, 2012
    Assignee: Microsoft Corporation
    Inventors: Bin Gao, Tie-Yan Liu, Hang Li, Congkai Sun
  • Forum Mining for Suspicious Link Spam Sites Detection
    Publication number: 20090198673
    Abstract: An anti-spam technique for protecting search engine ranking is based on mining search engine optimization (SEO) forums. The anti-spam technique collects webpages such as SEO forum posts from a list of suspect spam websites, and extracts suspicious link exchange URLs and corresponding link formation from the collected webpages. A search engine ranking penalty is then applied to the suspicious link exchange URLs. The penalty is at least partially determined by the link information associated with the respective suspicious link exchange URL. To detect more suspicious link exchange URLs, the technique may propagate one or more levels from a seed set of suspicious link exchange URLs generated by mining SEO forums.
    Type: Application
    Filed: February 6, 2008
    Publication date: August 6, 2009
    Applicant: MICROSOFT CORPORATION
    Inventors: Bin Gao, Tie-Yan Liu, Hang Li, Congkai Sun