Patents by Inventor Christopher Palow

Christopher Palow 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).

  • Methods and systems of classifying spam URL
    Patent number: 9378465
    Abstract: A method of operation of a URL spam detection system includes: identifying a feature dimension of a user action on a social networking system to detect anomalies; extracting URL chunks from a content associated with the user action; aggregating a non-content feature of the user action along the feature dimension into a URL distribution store to produce a feature distribution for each of the URL chunks; determining whether the feature distribution of a particular URL chunk within the URL chunks exceeds an expectation threshold for the feature dimension; and classifying the particular URL chunk as an illegitimate URL when the feature distribution exceeds the expectation threshold to restrict access to a particular URL chunk on a social networking system.
    Type: Grant
    Filed: April 29, 2013
    Date of Patent: June 28, 2016
    Assignee: FACEBOOK, INC.
    Inventors: Allan Stewart, Eugene Zarakhovsky, Christopher Palow, Chetan Gowda, Brent Dorman
  • METHODS AND SYSTEMS OF CLASSIFYING SPAM URL
    Publication number: 20140324741
    Abstract: A method of operation of a URL spam detection system includes: identifying a feature dimension of a user action on a social networking system to detect anomalies; extracting URL chunks from a content associated with the user action; aggregating a non-content feature of the user action along the feature dimension into a URL distribution store to produce a feature distribution for each of the URL chunks; determining whether the feature distribution of a particular URL chunk within the URL chunks exceeds an expectation threshold for the feature dimension; and classifying the particular URL chunk as an illegitimate URL when the feature distribution exceeds the expectation threshold to restrict access to a particular URL chunk on a social networking system.
    Type: Application
    Filed: April 29, 2013
    Publication date: October 30, 2014
    Applicant: Facebook, Inc.
    Inventors: Allan Stewart, Eugene Zarakhovsky, Christopher Palow, Chetan Gowda, Brent Dorman