公开(公告)号：US20160117588A1

公开(公告)日：2016-04-28

申请号：US14895023

申请日：2014-06-06

Applicant: NEC CORPORATION

Inventor： Yusuke MURAOKA ,  Yukitaka KUSUMURA ,  Hironori MIZUGUCHI ,  Dai KUSUI

IPC: G06N5/02 ,  G06N99/00

CPC classification number: G06N5/02 ,  G06N20/00 ,  G06Q10/06375

Abstract: The prediction function creation device according to the present invention for creating a prediction function to derive an objective variable by using a set of samples that include explanatory variables and an objective variable, the device includes: a clustering unit that clusters the respective samples by giving labels, and assigns weights to each label in accordance with patterns of missing values for the explanatory variables in labeled samples; a child model creation unit that makes portions of the training data partial training data on the basis of the weights, and determines an explanatory variable that constitutes the prediction function on the basis of patterns of missing values for the explanatory variables in the samples; and a mixture model creation unit that creates the prediction function with respect to each pattern of missing values by using the explanatory variable and the determined partial training data.

Abstract translation: 根据本发明的预测函数创建装置，用于通过使用包括解释变量和目标变量的一组样本来创建预测函数以导出目标变量，所述设备包括：聚类单元，通过给出标签来聚集各个样本 ，并根据标记样本中的解释变量的缺失值模式为每个标签分配权重; 子模型创建单元，其基于权重构成训练数据部分训练数据的部分，并且基于样本中的解释变量的缺失值的模式来确定构成预测函数的解释变量; 以及混合模型创建单元，其通过使用所述解释变量和所确定的部分训练数据来创建关于缺失值的每个模式的预测函数。