Patents by Inventor Lefei LIU

Lefei LIU 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).

  • EVALUATION OF MODELING ALGORITHMS WITH CONTINUOUS OUTPUTS
    Publication number: 20230100730
    Abstract: Certain aspects involve evaluating modeling algorithms whose outputs can impact machine-implemented operating environments. For instance, a computing system generates, from a comparison of a set of estimated attribute values of an attribute to a set of validation attribute values of the attribute, a discretized evaluation dataset with data values in multiple categories. The computing system computes, for a modeling algorithm used to generate the estimated attribute values, an evaluation metric. The computing system provides a host computing system with access to the evaluation metric, one or more modeling outputs generated with the modeling algorithm, or both. Providing one or more of these outputs to the host computing system can facilitate modifying one or more machine-implemented operations.
    Type: Application
    Filed: November 4, 2022
    Publication date: March 30, 2023
    Inventors: Lefei LIU, Peter LIU, Jiawei LIU, Peter GAO, Vickey CHANG
  • Evaluation of modeling algorithms with continuous outputs
    Patent number: 11521020
    Abstract: Certain aspects involve evaluating modeling algorithms whose outputs can impact machine-implemented operating environments. For instance, a computing system generates, from a comparison of a set of estimated attribute values of an attribute to a set of validation attribute values of the attribute, a discretized evaluation dataset with data values in multiple categories. The computing system computes, for a modeling algorithm used to generate the estimated attribute values, an evaluation metric. The computing system provides a host computing system with access to the evaluation metric, one or more modeling outputs generated with the modeling algorithm, or both. Providing one or more of these outputs to the host computing system can facilitate modifying one or more machine-implemented operations.
    Type: Grant
    Filed: October 31, 2019
    Date of Patent: December 6, 2022
    Assignee: EQUIFAX INC.
    Inventors: Lefei Liu, Peter Liu, Jiawei Liu, Peter Gao, Vickey Chang
  • EVALUATION OF MODELING ALGORITHMS WITH CONTINUOUS OUTPUTS
    Publication number: 20200134387
    Abstract: Certain aspects involve evaluating modeling algorithms whose outputs can impact machine-implemented operating environments. For instance, a computing system generates, from a comparison of a set of estimated attribute values of an attribute to a set of validation attribute values of the attribute, a discretized evaluation dataset with data values in multiple categories. The computing system computes, for a modeling algorithm used to generate the estimated attribute values, an evaluation metric. The computing system provides a host computing system with access to the evaluation metric, one or more modeling outputs generated with the modeling algorithm, or both. Providing one or more of these outputs to the host computing system can facilitate modifying one or more machine-implemented operations.
    Type: Application
    Filed: October 31, 2019
    Publication date: April 30, 2020
    Inventors: Lefei LIU, Peter LIU, Jiawei LIU, Peter GAO, Vickey CHANG