Patents by Inventor Zohreh Asgharzadeh Talebi

Zohreh Asgharzadeh Talebi 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).

  • Patent number: 11321581
    Abstract: Physical-device anomalies and degradation can be mitigated by implementing some aspects described herein. For example, a system can determine a first data window and a second data window by applying a window function to streaming data. The system can determine a first principal eigenvector of the first data window and a first principal eigenvector of the second data window. The system can determine an angle change between the first principal eigenvectors of the two data windows. The system can then detect an anomaly based on determining that the angle change exceeds a predefined angle-change threshold. Additionally or alternatively, the system may compare the first principal eigenvector for the second data window to a baseline value to determine an absolute angle associated with the second data window. The system can then detect a degradation based on determining that the absolute angle exceeds a predefined absolute-angle threshold.
    Type: Grant
    Filed: May 5, 2020
    Date of Patent: May 3, 2022
    Assignee: SAS INSTITUTE INC.
    Inventors: Kyungduck Cha, Carol Wagih Sadek, Zohreh Asgharzadeh Talebi
  • Publication number: 20200387747
    Abstract: Physical-device anomalies and degradation can be mitigated by implementing some aspects described herein. For example, a system can determine a first data window and a second data window by applying a window function to streaming data. The system can determine a first principal eigenvector of the first data window and a first principal eigenvector of the second data window. The system can determine an angle change between the first principal eigenvectors of the two data windows. The system can then detect an anomaly based on determining that the angle change exceeds a predefined angle-change threshold. Additionally or alternatively, the system may compare the first principal eigenvector for the second data window to a baseline value to determine an absolute angle associated with the second data window. The system can then detect a degradation based on determining that the absolute angle exceeds a predefined absolute-angle threshold.
    Type: Application
    Filed: May 5, 2020
    Publication date: December 10, 2020
    Applicant: SAS Institute Inc.
    Inventors: Kyungduck Cha, Carol Wagih Sadek, Zohreh Asgharzadeh Talebi