公开(公告)号：US20180075360A1

公开(公告)日：2018-03-15

申请号：US15560085

申请日：2016-03-08

Applicant: NEC CORPORATION

Inventor： Akira TANIMOTO ,  Junpei KOMIYAMA ,  Yousuke MOTOHASHI ,  Ryohei FUJIMAKI ,  Yasuhiro SOGAWA

IPC: G06N5/04 ,  G06N99/00

CPC classification number: G06N5/048 ,  G06N20/00

Abstract: An accuracy estimation unit 91 estimates accuracy of a predictive model using an accuracy estimating model that is learned using, as an explanatory variable, all or part of one or more contexts each indicating a feature value representing an operation status of the predictive model at a first point of interest that is a past point in time of interest a learning period of the predictive model, and a parameter used to learn the predictive model and, as a response variable, an accuracy index in a period after the first point of interest. The accuracy estimation unit 91 calculates the context at a second point of interest that is a point in time after the first point of interest, and applies the calculated context to the accuracy estimating model to estimate the accuracy from the second point of interest onward.