STANDARD TIME SERIES DATA CALCULATION METHOD, ABNORMALITY DETECTION METHOD, STANDARD TIME SERIES DATA CALCULATION DEVICE, ABNORMALITY DETECTION DEVICE, STANDARD TIME SERIES DATA CALCULATION PROGRAM, AND ABNORMALITY DETECTION PROGRAM

摘要

PROBLEM TO BE SOLVED: To provide a standard time series data calculation method, a standard time series data calculation device, and a standard time series data calculation program which calculate standard time series data representing a normal state, and to provide an abnormality detection method, an abnormality detection device, and an abnormality detection program which use the standard time series data to detect an abnormality.;SOLUTION: The standard time series data calculation method includes: a data acquisition step of acquiring a plurality of pieces of time series data about a plurality of variables in one system; a data normalization step of generating a plurality of pieces of normalized time series data from the plurality of pieces of time series data; a warping path calculation step of obtaining a warping path by selecting masses on the basis of a distance in a DTW description using two of the plurality of pieces of normalized time series data generated in the data normalization step; and a standard time series data calculation step of calculating standard time series data comprising time-series sets of a plurality of average values per mass on the warping path.;COPYRIGHT: (C)2011,JPO&INPIT