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    • 1. 发明授权
    • Computing and applying order statistics for data preparation
    • 计算和应用订单统计数据进行准备
    • US08868573B2
    • 2014-10-21
    • US13444718
    • 2012-04-11
    • Yea J. ChuSier HanFan LiJing-Yun ShyrDamir SpisicGraham J. WillsJing Xu
    • Yea J. ChuSier HanFan LiJing-Yun ShyrDamir SpisicGraham J. WillsJing Xu
    • G06F7/00
    • G06F17/30283G06F17/3007G06Q10/10G06Q30/06
    • Provided are techniques for generating order statistics and error bounds. For each of multiple, distributed data sources, a finite number of data bins are created for each field in that data source. Data values in each of the multiple, distributed data sources are processed to generate basic summaries for each of the data bins in a single pass of the data values. The data bins from each of the multiple, distributed data sources are sorted. One or more approximate order statistics are computed for a data set by accumulating counts from a number of the sorted data bins. Lower and upper error bounds are provided for each of the computed one or more approximate order statistics, wherein the lower and upper error bounds are values delimiting an interval containing a true value of an order statistic.
    • 提供了用于生成订单统计和错误界限的技术。 对于多个分布式数据源中的每一个,为数据源中的每个字段创建有限数量的数据仓。 处理多个分布式数据源中的每一个中的数据值,以便在单次数据值中为每个数据仓生成基本摘要。 来自多个分布式数据源中的每一个的数据仓被排序。 通过从多个排序的数据仓中累积计数,为数据集计算一个或多个近似顺序统计量。 为所计算的一个或多个近似秩统计中的每一个提供下限和上限误差界限,其中下限误差界限和上限误差界限是定义包含订单统计量的真实值的间隔的值。
    • 6. 发明授权
    • Missing value imputation for predictive models
    • 预测模型缺失值插补
    • US08843423B2
    • 2014-09-23
    • US13403863
    • 2012-02-23
    • Yea J. ChuSier HanJing-Yun ShyrJing Xu
    • Yea J. ChuSier HanJing-Yun ShyrJing Xu
    • G06F15/18G06N5/02
    • G06N5/025G06F15/18G06N5/04G06N99/005
    • Provided are techniques for imputing a missing value for each of one or more predictor variables. Data is received from one or more data sources. For each of the one or more predictor variables, an imputation model is built based on information of a target variable; a type of imputation model to construct is determined based on the one or more data sources, a measurement level of the predictor variable, and a measurement level of the target variable; and the determined type of imputation model is constructed using basic statistics of the predictor variable and the target variable. The missing value is imputed for each of the one or more predictor variables using the data from the one or more data sources and one or more built imputation models to generate a completed data set.
    • 提供了用于估算每个一个或多个预测变量的缺失值的技术。 从一个或多个数据源接收数据。 对于一个或多个预测变量中的每一个,基于目标变量的信息构建插补模型; 基于一个或多个数据源,预测变量的测量水平和目标变量的测量水平来确定构造的插补模型的类型; 并使用预测变量和目标变量的基本统计量构建确定的插补模型。 使用来自一个或多个数据源的数据和一个或多个内置插补模型来为每个一个或多个预测变量估计缺失值,以生成完成的数据集。
    • 7. 发明授权
    • Missing value imputation for predictive models
    • 预测模型缺失值插补
    • US09443194B2
    • 2016-09-13
    • US13445796
    • 2012-04-12
    • Yea J. ChuSier HanJing-Yun ShyrJing Xu
    • Yea J. ChuSier HanJing-Yun ShyrJing Xu
    • G06N5/04G06N5/02G06N99/00G06F15/18
    • G06N5/025G06F15/18G06N5/04G06N99/005
    • Provided are techniques for imputing a missing value for each of one or more predictor variables. Data is received from one or more data sources. For each of the one or more predictor variables, an imputation model is built based on information of a target variable; a type of imputation model to construct is determined based on the one or more data sources, a measurement level of the predictor variable, and a measurement level of the target variable; and the determined type of imputation model is constructed using basic statistics of the predictor variable and the target variable. The missing value is imputed for each of the one or more predictor variables using the data from the one or more data sources and one or more built imputation models to generate a completed data set.
    • 提供了用于估算每个一个或多个预测变量的缺失值的技术。 从一个或多个数据源接收数据。 对于一个或多个预测变量中的每一个,基于目标变量的信息构建插补模型; 基于一个或多个数据源,预测变量的测量水平和目标变量的测量水平来确定构造的插补模型的类型; 并使用预测变量和目标变量的基本统计量构建确定的插补模型。 使用来自一个或多个数据源的数据和一个或多个内置插补模型来为每个一个或多个预测变量估计缺失值,以生成完成的数据集。