Patents by Inventor Stanley Wei

Stanley Wei 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).

  • Classification and cluster analysis spam detection and reduction
    Patent number: 7809824
    Abstract: Multiple features of email traffic are analyzed and extracted. Feature vectors comprising the multiple features are created and cluster analysis is utilized to track spam generation even from dynamically changing or aliased IP addresses.
    Type: Grant
    Filed: September 29, 2008
    Date of Patent: October 5, 2010
    Assignee: Yahoo! Inc.
    Inventors: Stanley Wei, Xiaopeng Xi, Vishwanath Tumkur Ramarao, Dragomir Yankov
  • RETROSPECTIVE SPAM FILTERING
    Publication number: 20100082749
    Abstract: A mail system and mail delivery method wherein messages are tracked even after delivery and can be removed from a spam folder post delivery. In a disclosed embodiment mail features indicative of spam or normal email are analyzed and appended to the message header, which is later examined and used to move a reclassified message. False negative and false positive classification can be rectified.
    Type: Application
    Filed: September 26, 2008
    Publication date: April 1, 2010
    Applicant: YAHOO! INC
    Inventors: Stanley WEI, Anirban KUNDU, Mark RISHER, Vishwanath Tumkur RAMARAO
  • CLASSIFICATION AND CLUSTER ANALYSIS SPAM DETECTION AND REDUCTION
    Publication number: 20100082800
    Abstract: Multiple features of email traffic are analyzed and extracted. Feature vectors comprising the multiple features are created and cluster analysis is utilized to track spam generation even from dynamically changing or aliased IP addresses.
    Type: Application
    Filed: September 29, 2008
    Publication date: April 1, 2010
    Applicant: YAHOO! INC
    Inventors: Stanley WEI, Xiaopeng Wei, Vishwanath Tumkur RAMARAO, Dragomir YANKOV