On the relevance of graphical causal models for failure detection for industrial machinery

Autoren Andreaa-Hilda Kosorus
Mariya Zhariy
Thomas Natschläger
Bernhard Freudenthaler
Josef Küng
Editoren R. Moreno-Díaz
F. Pichler
A. Quesada-Arencibia
Titel On the relevance of graphical causal models for failure detection for industrial machinery
Buchtitel Computer Aided Systems Theory - EUROCAST 2013, Revised Selected Papers, Part I
Typ in Buch
Verlag Springer
Serie Lecture Notes in Computer Science
Band 8111
ISBN 978-3-642-53855-1
Monat December
Jahr 2013
Seiten 174-181
SCCH ID# 1378
Abstract

Assessing the
reliability of industrial machinery is an important aspect within maintenance
processes in order to maximize productivity and efficiency. In this paper we
propose to use graphical models for fault detection in industrial machinery
within a condition-based maintenance setting. The contribution of this work is
based on the hypothesis that during fault free operation the causal
relationships between the observed measurement channels are not changing.
Therefore, major changes in a graphical model might imply faulty changes within
the machine's functionality or its properties. We compare and evaluate four
methods for the identification of potential causal relationships on a real
world inspired use case. The results indicate that sparse models (using L1
regularization) perform better than traditional full models.