Patents by Inventor Sichen Zhao

Sichen Zhao 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).

  • Contextual spelling correction system
    Patent number: 11151317
    Abstract: Contextual spelling methods and systems are provided that utilize natural language processing and n-gram frequencies to group documents into logical groups and to provide spelling correction suggestions. For example, a contextual spelling correction system may receive a set of documents, group the documents into separate logical groups, generate dictionaries associated with the logical groups, receive a user input, determine scores for potential spelling correction suggestions regarding the user input, and provide spelling correction suggestions based at least partly on the dictionaries associated with the logical groups.
    Type: Grant
    Filed: January 29, 2019
    Date of Patent: October 19, 2021
    Assignee: Amazon Technologies, Inc.
    Inventors: Saurabh Kumar Singh, Sichen Zhao