---
publication_id: "OT-2026-000000156"
title: "Construction method of abnormality diagnosis model, abnormality diagnosis method, construction device of abnormality diagnosis model, and abnormality diagnosis device"
published_at: "2026-09-15T19:02:33.158446Z"
canonical_url: "https://opentechnical.org/p/OT-2026-000000156"
categories:
  - "sensors-controls-machine-vision/industrial-control"
keywords:
  - "g05b23/0243"
  - "g06q10/06395"
  - "g06q50/04"
---

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

## 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.