公开(公告)号：US20230409664A1

公开(公告)日：2023-12-21

申请号：US18460647

申请日：2023-09-04

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： SHINGO YAMAGUCHI ,  MIRAI SHIMAGUCHI ,  YUICHIRO SADANAGA ,  NOBUO HARA

IPC: G06F17/11

CPC classification number: G06F17/11

Abstract: Data analysis device 1 includes: a difference value calculator that calculates, in data section (i, i+1) in which ith data at a predetermined date and time among the plurality of pieces of data is used as a start point value and (i+1)th data at a date and time after the predetermined date and time is used as an end point value, explanatory variable difference value ΔX that is a difference between start point value X(i) of explanatory variable X included in the ith data and end point value X(i+1) of explanatory variable X included in the (i+1)th data, and target variable difference value ΔY that is a difference between start point value Y(i) of target variable Y included in the ith data and end point value Y(i+1) of target variable Y included in the (i+1) data; and a difference model derivation unit that derives difference model M indicating a relationship between explanatory variable difference value ΔX and target variable difference value ΔY based on a plurality of the explanatory variable difference values ΔX and a plurality of the target variable difference values ΔY.