Patents by Inventor Rongsheng ZHU

Rongsheng ZHU 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: 11755959
    Abstract: The systems, methods, and computer program products for determining bins for a data model are provided. Variables in a training data set are binned into bins up to a configurable number of bins. Variables in the validation data set are also binned using the bins from the training data set. A first decision tree is generated using the bins and the binned variables from the training data set and is pruned. A second decision tree is generated using the structure of the first decision tree and the binned variables from the validation data set. The first and second decision tree are merged into a third decision tree. Leaf nodes of the third decision tree are sorted and merged until weights of evidence associated with the training data set and the validation data set are monotonic. The bins for the data model are determined from the merged leaf nodes.
    Type: Grant
    Filed: December 12, 2018
    Date of Patent: September 12, 2023
    Assignee: PayPal, Inc.
    Inventors: Fan Cai, Rongsheng Zhu, Yingying Yu
  • Publication number: 20230111652
    Abstract: Event data of a first entity is accessed. The first entity has been flagged as having a predefined status. The event data corresponds to a plurality of events involving the first entity that occurred within a predefined first time period. Based on the accessing of the event data, behavioral data of the first entity is generated. The behavioral data is formatted as a data sequence. A machine learning model is trained using the behavioral data of the first entity as training data. Using the trained machine learning model, a determination is made as to whether a second entity has the predefined status.
    Type: Application
    Filed: June 16, 2020
    Publication date: April 13, 2023
    Inventors: Rongsheng Zhu, Dmitry Martyanov, Xiuyi Ling
  • Publication number: 20210232978
    Abstract: The systems, methods, and computer program products for determining bins for a data model are provided. Variables in a training data set are binned into bins up to a configurable number of bins. Variables in the variable data set are also binned using the bins from the training data set. A first decision tree is generated using the bins and the binned variables from the training data set and is pruned. A second decision tree is generated using the structure of the first decision tree and the binned variables from the variable data set. The first and second decision tree are merged into a third decision tree. Leaf nodes of the third decision tree are sorted and merged until weights of evidence associated with the training data set and the validation data set are monotonic. The bins for the data model are determined from the merged leaf nodes.
    Type: Application
    Filed: December 12, 2018
    Publication date: July 29, 2021
    Inventors: Fan CAI, Rongsheng ZHU, Yingying YU