Patents by Inventor Jiashang Liu

Jiashang 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).

  • Patent number: 11928017
    Abstract: A method includes receiving a point data anomaly detection query from a user. The query requests the data processing hardware to determine a quantity of anomalous point data values in a set of point data values. The method includes training a model using the set of point data values. For at least one respective point data value in the set of point data values, the method includes determining, using the trained model, a variance value for the respective point data value and determining that the variance value satisfies a threshold value. Based on the variance value satisfying the threshold value, the method includes determining that the respective point data value is an anomalous point data value. The method includes reporting the determined anomalous point data value to the user.
    Type: Grant
    Filed: May 21, 2022
    Date of Patent: March 12, 2024
    Assignee: Google LLC
    Inventors: Zichuan Ye, Jiashang Liu, Forest Elliott, Amir Hormati, Xi Cheng, Mingge Deng
  • Publication number: 20230274180
    Abstract: A method for forecasting time-series data, when executed by data processing hardware, causes the data processing hardware to perform operations including receiving a time series forecasting query from a user requesting a time series forecast forecasting future data based on a set of current time-series data. The operations include obtaining, from the set of current time-series data, a set of training data. The operations include training, using a first portion of the set of training data, a first sub-model of a forecasting model and training, using a second portion of the set of training data, a second sub-model of the forecasting model. The second portion is different than the first portion. The operations include forecasting, using the forecasting model, the future data based on the set of current time-series data and returning, to the user, the forecasted future data for the time series forecast.
    Type: Application
    Filed: February 28, 2022
    Publication date: August 31, 2023
    Applicant: Google LLC
    Inventors: Xi Cheng, Jiashang Liu, Lisa Yin, Amir Hossein Hormati, Mingge Deng, Weijie Shen, Kashif Yousuf
  • Publication number: 20230153311
    Abstract: A method for anomaly detection includes receiving an anomaly detection query from a user. The anomaly detection query requests data processing hardware determine one or more anomalies in a dataset including a plurality of examples. Each example in the plurality of examples is associated with one or more features. The method includes training a model using the dataset. The trained model is configured to use a local outlier factor (LOF) algorithm. For each respective example of the plurality of examples in the dataset, the method includes determining, using the trained model, a respective local deviation score based on the one or more features. The method includes determining that the respective local deviation score satisfies a deviation score threshold and, based on the location deviation score satisfying the threshold, determining that the respective example is anomalous. The method includes reporting the respective anomalous example to the user.
    Type: Application
    Filed: November 8, 2022
    Publication date: May 18, 2023
    Applicant: Google LLC
    Inventors: Xi Cheng, Zichuan Ye, Peng Lin, Jiashang Liu, Amir Hormati, Mingge Deng
  • Publication number: 20230094479
    Abstract: A method includes receiving a model analysis request from a user. The model analysis requests requesting the data processing hardware to provide one or more statistics of a model trained on a dataset. The method also includes obtaining the trained model. The trained model includes a plurality of weights. Each weight is assigned to a feature of the trained model. The model also includes determining, using the dataset and the plurality of weights, the one or more statistics of the trained model based on a linear regression of the trained model. The method includes reporting the one or more statistics of the trained model to the user.
    Type: Application
    Filed: September 30, 2021
    Publication date: March 30, 2023
    Applicant: Google LLC
    Inventors: Xi Cheng, Lisa Yin, Mingge Deng, Amir Hormati, Umar Ali Syed, Jiashang Liu
  • Publication number: 20220405623
    Abstract: The disclosure is directed to a query-driven machine learning platform for generating feature attributions and other data for interpreting the relationship between inputs and outputs of a machine learning model. The platform can receive query statements for selecting data, training a machine learning model, and generating model explanation data for the model. The platform can distribute processing for generating the model explanation data to scale in response to requests to process selected data, including multiple records with a variety of different feature values. The interface between a user device and the machine learning platform can streamline deployment of different model explainability approaches across a variety of different machine learning models.
    Type: Application
    Filed: June 22, 2021
    Publication date: December 22, 2022
    Inventors: Xi Cheng, Lisa Yin, Jiashang Liu, Amir H. Hormati, Mingge Deng, Christopher Avery Meyers
  • Publication number: 20220382622
    Abstract: A method includes receiving a point data anomaly detection query from a user. The query requests the data processing hardware to determine a quantity of anomalous point data values in a set of point data values. The method includes training a model using the set of point data values. For at least one respective point data value in the set of point data values, the method includes determining, using the trained model, a variance value for the respective point data value and determining that the variance value satisfies a threshold value. Based on the variance value satisfying the threshold value, the method includes determining that the respective point data value is an anomalous point data value. The method includes reporting the determined anomalous point data value to the user.
    Type: Application
    Filed: May 21, 2022
    Publication date: December 1, 2022
    Applicant: Google LLC
    Inventors: Zichaun Ye, Jiashang Liu, Forest Elliott, Amir Hormati, Xi Cheng, Mingge Deng
  • Publication number: 20220382857
    Abstract: A method includes receiving a time series anomaly detection query from a user and training one or more models using a set of time series data values. For each respective time series data value in the set, the method includes determining, using the trained models, an expected data value for the respective time series data value and determining a difference between the expected data value and the respective time series data value. The method also includes determining that the difference between the expected data value and the respective time series data value satisfies a threshold. In response to determining that the difference between the expected data value and the respective time series data value satisfies the threshold, the method includes determining that the respective time series data value is anomalous and reporting the anomalous respective time series data value to the user.
    Type: Application
    Filed: May 24, 2022
    Publication date: December 1, 2022
    Applicant: Google LLC
    Inventors: Jiashang LIU, Xi CHENG, Amir HORMATI, Weijie SHEN