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).
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Patent number: 11928017Abstract: 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: GrantFiled: May 21, 2022Date of Patent: March 12, 2024Assignee: Google LLCInventors: Zichuan Ye, Jiashang Liu, Forest Elliott, Amir Hormati, Xi Cheng, Mingge Deng
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Publication number: 20230274180Abstract: 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: ApplicationFiled: February 28, 2022Publication date: August 31, 2023Applicant: Google LLCInventors: Xi Cheng, Jiashang Liu, Lisa Yin, Amir Hossein Hormati, Mingge Deng, Weijie Shen, Kashif Yousuf
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Publication number: 20230153311Abstract: 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: ApplicationFiled: November 8, 2022Publication date: May 18, 2023Applicant: Google LLCInventors: Xi Cheng, Zichuan Ye, Peng Lin, Jiashang Liu, Amir Hormati, Mingge Deng
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Publication number: 20230094479Abstract: 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: ApplicationFiled: September 30, 2021Publication date: March 30, 2023Applicant: Google LLCInventors: Xi Cheng, Lisa Yin, Mingge Deng, Amir Hormati, Umar Ali Syed, Jiashang Liu
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Publication number: 20220405623Abstract: 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: ApplicationFiled: June 22, 2021Publication date: December 22, 2022Inventors: Xi Cheng, Lisa Yin, Jiashang Liu, Amir H. Hormati, Mingge Deng, Christopher Avery Meyers
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Publication number: 20220382622Abstract: 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: ApplicationFiled: May 21, 2022Publication date: December 1, 2022Applicant: Google LLCInventors: Zichaun Ye, Jiashang Liu, Forest Elliott, Amir Hormati, Xi Cheng, Mingge Deng
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Publication number: 20220382857Abstract: 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: ApplicationFiled: May 24, 2022Publication date: December 1, 2022Applicant: Google LLCInventors: Jiashang LIU, Xi CHENG, Amir HORMATI, Weijie SHEN