Patents by Inventor Qiuping Xu

Qiuping Xu 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: 11636377
    Abstract: Computer systems and associated methods are disclosed to detect a future change point in time series data used as input to a machine learning model. A forecast for the time series data is generated. In some embodiments, a fitting model is generated from the time series data, and residuals of the fitting model are obtained for respective portions of the data both before and after a potential change point in the future. The change point is determined based on a ratio of residual metrics for the two portions. In some embodiments, data features are extracted from individual segments in the time series data, and the segments are clustered based on their data features. A change point is determined based on a dissimilarity in cluster assignments for segments before and after the point. In some embodiments, when a change point is predicted, an update of the machine learning model is triggered.
    Type: Grant
    Filed: July 3, 2018
    Date of Patent: April 25, 2023
    Assignee: Amazon Technologies, Inc.
    Inventors: Qiuping Xu, Joshua Allen Edgerton
  • Publication number: 20220129737
    Abstract: System and methods are provided that can address a slowdown during neural network execution. The machine learning system precomputes values at the input layer that are not going to change for subsequent inferences. Using the precomputed values during execution reduces the computation costs for determining inferences in neural networks. Some of the improved neural networks are configured to maximize performance of an agent. Further, some of the improved neural networks are configured to process multiple agents where the input layer is configured to receive agent feature vectors in the input layer.
    Type: Application
    Filed: October 28, 2020
    Publication date: April 28, 2022
    Inventors: Kesavsundar Gopalakrishnan, Qiuping Xu
  • Patent number: D1061283
    Type: Grant
    Filed: September 26, 2023
    Date of Patent: February 11, 2025
    Inventor: Qiuping Xu
  • Patent number: D1066089
    Type: Grant
    Filed: March 16, 2023
    Date of Patent: March 11, 2025
    Inventor: Qiuping Xu
  • Patent number: D1066090
    Type: Grant
    Filed: March 16, 2023
    Date of Patent: March 11, 2025
    Inventor: Qiuping Xu