OPENTECHNICAL PUBLICATION
OT-2026-000000156

Construction method of abnormality diagnosis model, abnormality diagnosis method, construction device of abnormality diagnosis model, and abnormality diagnosis device

Published: 2026-09-15T19:02:33.158446Z
Permanent URL: https://opentechnical.org/p/OT-2026-000000156
Categories: Sensors, Controls & Machine Vision > Industrial Control

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ABSTRACT

A construction method of an abnormality diagnosis model for diagnosing an
abnormality of a process, the construction method includes: creating a first
regression model that sets a regression coefficient regarding an explanatory
variable with a small influence on a response variable to zero by using all
operational data in normal times collected in advance; dividing the
operational data into a plurality of segments determined in advance and
determining an explanatory variable candidate for each of the segments within
a range of the explanatory variable used in the first regression model; and
creating a second regression model that sets a regression coefficient
regarding an explanatory variable candidate with a small influence on a
response variable to zero by using the operational data included in the
segment.

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OpenTechnical publication OT-2026-000000156
Published 2026-09-15T19:02:33.158446Z
https://opentechnical.org/p/OT-2026-000000156