Patents by Inventor Hanzhang WANG

Hanzhang WANG 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: 12131265
    Abstract: Technologies are disclosed herein for enhancing machine learning (“ML”)-based anomaly detection systems using knowledge graphs. The disclosed technologies generate a connected graph that defines a topology of infrastructure components along with associated alarms generated by a ML component. The ML component generates the alarms by applying ML techniques to real-time data metrics generated by the infrastructure components. Scores are computed for the infrastructure components based upon the connected graph. A root cause of an anomaly affecting infrastructure components can then be identified based upon the scores, and remedial action can be taken to address the root cause of the anomaly. A user interface is also provided for visualizing aspects of the connected graph.
    Type: Grant
    Filed: October 31, 2022
    Date of Patent: October 29, 2024
    Assignee: eBay Inc.
    Inventors: Hanzhang Wang, Phuong Nguyen
  • Publication number: 20230385175
    Abstract: Technologies are shown for generating process flow graphs from system trace data that involve obtaining raw distributed trace data for a system, aggregating the raw distributed trace data into aggregated distributed trace data, generating a plurality of process flow graphs from the aggregated distributed trace data, and storing the plurality of process flow graphs in a graphical store. A first critical path can be determined from the plurality of process flow graphs based on an infrastructure design for the system and a process flow graph corresponding to the first critical path provided for graphical display. Certain examples can determine a second critical path involving a selected element of the first critical path and provide the process flow graph for the second critical path for display. Some examples pre-process the aggregated distributed trace data to repair incorrect traces. Other examples merge included process flow graphs into longer graphs.
    Type: Application
    Filed: August 10, 2023
    Publication date: November 30, 2023
    Inventors: Hanzhang WANG, Huai JIANG, Liangfei SU, Selcuk KOPRU, Sanjeev KATARIYA, Wanxue LI
  • Patent number: 11768755
    Abstract: Process flow graphs are generated from system trace data by obtaining raw distributed trace data for a system, aggregating the raw distributed trace data into aggregated distributed trace data, generating a plurality of process flow graphs from the aggregated distributed trace data, and storing the plurality of process flow graphs in a graphical store. A first critical path can be determined from the plurality of process flow graphs based on an infrastructure design for the system and a process flow graph corresponding to the first critical path provided for graphical display. Certain examples can determine a second critical path involving a selected element of the first critical path and provide the process flow graph for the second critical path for display. Some examples pre-process the aggregated distributed trace data to repair incorrect traces. Other examples merge included process flow graphs into longer graphs.
    Type: Grant
    Filed: March 23, 2021
    Date of Patent: September 26, 2023
    Assignee: eBay Inc.
    Inventors: Hanzhang Wang, Huai Jiang, Liangfei Su, Selcuk Kopru, Sanjeev Katariya, Wanxue Li
  • Publication number: 20230048212
    Abstract: Technologies are disclosed herein for enhancing machine learning (“ML”) -based anomaly detection systems using knowledge graphs. The disclosed technologies generate a connected graph that defines a topology of infrastructure components along with associated alarms generated by a ML component. The ML component generates the alarms by applying ML techniques to real-time data metrics generated by the infrastructure components. Scores are computed for the infrastructure components based upon the connected graph. A root cause of an anomaly affecting infrastructure components can then be identified based upon the scores, and remedial action can be taken to address the root cause of the anomaly. A user interface is also provided for visualizing aspects of the connected graph.
    Type: Application
    Filed: October 31, 2022
    Publication date: February 16, 2023
    Applicant: eBay Inc.
    Inventors: Hanzhang Wang, Phuong Nguyen
  • Patent number: 11531908
    Abstract: Technologies are disclosed herein for enhancing machine learning (“ML”)-based anomaly detection systems using knowledge graphs. The disclosed technologies generate a connected graph that defines a topology of infrastructure components along with associated alarms generated by a ML component. The ML component generates the alarms by applying ML techniques to real-time data metrics generated by the infrastructure components. Scores are computed for the infrastructure components based upon the connected graph. A root cause of an anomaly affecting infrastructure components can then be identified based upon the scores, and remedial action can be taken to address the root cause of the anomaly. A user interface is also provided for visualizing aspects of the connected graph.
    Type: Grant
    Filed: March 12, 2019
    Date of Patent: December 20, 2022
    Assignee: eBay Inc.
    Inventors: Hanzhang Wang, Phuong Viet Nguyen
  • Publication number: 20220058668
    Abstract: Technologies are disclosed for implementing a time series forecasting model. A time series forecasting model comprising a periodic component is modified to include an event-based component comprising a long-term portion representing impacts greater than one period of the periodic component, and a short-term portion representing impacts shorter than one period of the periodic component. A forecast is output using the modified time series forecasting model.
    Type: Application
    Filed: August 19, 2020
    Publication date: February 24, 2022
    Inventors: Hanzhang WANG, Yitong GENG, Huai JIANG, Zhanxiang ZHAO, Liangfei SU
  • Publication number: 20210294717
    Abstract: Technologies are shown for generating process flow graphs from system trace data that involve obtaining raw distributed trace data for a system, aggregating the raw distributed trace data into aggregated distributed trace data, generating a plurality of process flow graphs from the aggregated distributed trace data, and storing the plurality of process flow graphs in a graphical store. A first critical path can be determined from the plurality of process flow graphs based on an infrastructure design for the system and a process flow graph corresponding to the first critical path provided for graphical display. Certain examples can determine a second critical path involving a selected element of the first critical path and provide the process flow graph for the second critical path for display. Some examples pre-process the aggregated distributed trace data to repair incorrect traces. Other examples merge included process flow graphs into longer graphs.
    Type: Application
    Filed: March 23, 2021
    Publication date: September 23, 2021
    Inventors: Hanzhang WANG, Huai JIANG, Liangfei SU, Selcuk KOPRU, Sanjeev KATARIYA, Wanxue LI
  • Publication number: 20200301972
    Abstract: Described are computing systems and methods as well as computer program products for enhancing the detection of abnormal online user behavior by incorporating time-series data of behavior-based user clusters into an entity graph for purposes of entity resolution. In various embodiments, graph analysis performed on a graph that includes nodes representing users, user attributes, and user clusters serves to determine groups of similar user entities, which may then be merged and/or further analyzed to detect abnormal behavior.
    Type: Application
    Filed: March 21, 2019
    Publication date: September 24, 2020
    Inventors: Hanzhang Wang, Vinay Phegade
  • Publication number: 20200293917
    Abstract: Technologies are disclosed herein for enhancing machine learning (“ML”)-based anomaly detection systems using knowledge graphs. The disclosed technologies generate a connected graph that defines a topology of infrastructure components along with associated alarms generated by a ML component. The ML component generates the alarms by applying ML techniques to real-time data metrics generated by the infrastructure components. Scores are computed for the infrastructure components based upon the connected graph. A root cause of an anomaly affecting infrastructure components can then be identified based upon the scores, and remedial action can be taken to address the root cause of the anomaly. A user interface is also provided for visualizing aspects of the connected graph.
    Type: Application
    Filed: March 12, 2019
    Publication date: September 17, 2020
    Inventors: Hanzhang WANG, Phuong Viet NGUYEN
  • Publication number: 20170270133
    Abstract: Embodiments of the disclosure provide a method, apparatus, and system for determining the existence of a data file.
    Type: Application
    Filed: November 26, 2015
    Publication date: September 21, 2017
    Inventor: Hanzhang WANG