Title:
DATA ANALYSIS DEVICE, DATA ANALYSIS METHOD, AND PROGRAM
Document Type and Number:
WIPO Patent Application WO/2023/243232
Kind Code:
A1
Abstract:
A data analysis device (1) comprises: a data acquisition unit (10) that acquires a target variable Y and a plurality of explanatory variables X, E that can have a different value depending on the time; a first model derivation unit (30) that uses the plurality of explanatory variables X, E and the target variable Y to perform multiple regression analysis, and derives a first model M1 indicating the relationship between the plurality of explanatory variables X, E and the target variable Y; a change point detection unit (50) that detects a change point Tc, which is the time at which a prescribed explanatory variable (for example, E) from among the plurality of explanatory variables X, E changes by exceeding a predetermined range; and a second model derivation unit (60) that corrects the first model M1 on the basis of the prescribed explanatory variable E using the change point Tc as the starting point, and derives a second model M2, which is a corrected model.
Inventors:
JIANG YIRAN
SADANAGA YUICHIRO
HARA NOBUO
SADANAGA YUICHIRO
HARA NOBUO
Application Number:
PCT/JP2023/016233
Publication Date:
December 21, 2023
Filing Date:
April 25, 2023
Export Citation:
Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
G06N99/00
Domestic Patent References:
| WO2022030041A1 | 2022-02-10 |
Foreign References:
| JP2019532372A | 2019-11-07 | |||
| JP2004072286A | 2004-03-04 | |||
| JP2004355200A | 2004-12-16 |
Attorney, Agent or Firm:
KAMATA Kenji et al. (JP)
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