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Improving expressional power and validation for multilevel flow models

Larsson, Jan Eric LU ; Ahnlund, Jonas LU ; Bergquist, Tord LU ; Dahlstrand, F; Ohman, B and Spaanenburg, Lambert LU (2004) In Journal of Intelligent & Fuzzy Systems 15(1). p.61-73
Abstract
Multilevel flow modeling (MFM) is a modeling method for complex technical systems in which the goals and functions of the system are explicitly described. MFM can be used as a basis for root cause analysis, where primary root causes are separated from consequential faults, in complex fault situations. Model representations for use in diagnostic reasoning usually describe causality, between parameters, faults, of, process states. However, the causality of a system may vary depending on details in the construction, as well as over time with the process state. One contribution of this paper is a general method of describing varying causality in a simple and efficient way. The method has been tested using multilevel flow models. Causality is... (More)
Multilevel flow modeling (MFM) is a modeling method for complex technical systems in which the goals and functions of the system are explicitly described. MFM can be used as a basis for root cause analysis, where primary root causes are separated from consequential faults, in complex fault situations. Model representations for use in diagnostic reasoning usually describe causality, between parameters, faults, of, process states. However, the causality of a system may vary depending on details in the construction, as well as over time with the process state. One contribution of this paper is a general method of describing varying causality in a simple and efficient way. The method has been tested using multilevel flow models. Causality is visible in measurements and can be used to increase process understanding. The standard cross-correlation technique is insufficient for causality detection in industrial processes. Another contribution of this paper is a new method that can detect causality in industrial signals, and thus be used to validate the design of multilevel flow models. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
alarm analysis, complex technical systems, correlation, fault detection, causality, multilevel flow models, root cause analysis
in
Journal of Intelligent & Fuzzy Systems
volume
15
issue
1
pages
61 - 73
publisher
IOS Press
external identifiers
  • wos:000226874700008
  • scopus:10044295012
ISSN
1064-1246
language
English
LU publication?
yes
id
7b4957a2-243e-4e83-8730-8e8d4c2a02eb (old id 254350)
alternative location
http://iospress.metapress.com/openurl.asp?genre=article&issn=1064-1246&volume=15&issue=1&spage=61
date added to LUP
2007-10-24 08:25:26
date last changed
2017-01-01 07:27:21
@article{7b4957a2-243e-4e83-8730-8e8d4c2a02eb,
  abstract     = {Multilevel flow modeling (MFM) is a modeling method for complex technical systems in which the goals and functions of the system are explicitly described. MFM can be used as a basis for root cause analysis, where primary root causes are separated from consequential faults, in complex fault situations. Model representations for use in diagnostic reasoning usually describe causality, between parameters, faults, of, process states. However, the causality of a system may vary depending on details in the construction, as well as over time with the process state. One contribution of this paper is a general method of describing varying causality in a simple and efficient way. The method has been tested using multilevel flow models. Causality is visible in measurements and can be used to increase process understanding. The standard cross-correlation technique is insufficient for causality detection in industrial processes. Another contribution of this paper is a new method that can detect causality in industrial signals, and thus be used to validate the design of multilevel flow models.},
  author       = {Larsson, Jan Eric and Ahnlund, Jonas and Bergquist, Tord and Dahlstrand, F and Ohman, B and Spaanenburg, Lambert},
  issn         = {1064-1246},
  keyword      = {alarm analysis,complex technical systems,correlation,fault detection,causality,multilevel flow models,root cause analysis},
  language     = {eng},
  number       = {1},
  pages        = {61--73},
  publisher    = {IOS Press},
  series       = {Journal of Intelligent & Fuzzy Systems},
  title        = {Improving expressional power and validation for multilevel flow models},
  volume       = {15},
  year         = {2004},
}