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Identification and prediction in dynamic networks with unobservable nodes
Linköping University, Department of Electrical Engineering, Automatic Control. Linköping University, Faculty of Science & Engineering.ORCID iD: 0000-0003-3498-3204
Linköping University, Department of Electrical Engineering, Automatic Control. Linköping University, Faculty of Science & Engineering.ORCID iD: 0000-0001-6523-8499
2016 (English)Report (Other academic)
Abstract [en]

The interest for system identification in dynamic networks has increased recently with a wide variety of applications. In many cases, it is intractable or undesirable to observe all nodes in a network and thus, to estimate the complete dynamics. If the complete dynamics is not desired, it might even be challenging to estimate a subset of the network if key nodes are unobservable due to correlation between the nodes. In this contribution, we will discuss an approach to treat this problem. The approach relies on additional measurements that are dependent on the unobservable nodes and thus indirectly contain information about them. These measurements are used to form an alternative indirect model that is only dependent on observed nodes. The purpose of estimating this indirect model can be either to recover information about modules in the original network or to make accurate predictions of variables in the network. Examples are provided for both recovery of the original modules and prediction of nodes.

Place, publisher, year, edition, pages
Linköping: Linköping University Electronic Press, 2016. , p. 18
Series
LiTH-ISY-R, ISSN 1400-3902 ; 3095
Keywords [en]
Dynamic networks, closed-loop identification, identifiability, system identification
National Category
Control Engineering
Identifiers
URN: urn:nbn:se:liu:diva-134137Libris ID: 20033400OAI: oai:DiVA.org:liu-134137DiVA, id: diva2:1068191
Available from: 2017-01-24 Created: 2017-01-24 Last updated: 2017-02-03Bibliographically approved

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CiteExportLink to record
Permanent link

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Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
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Language
  • de-DE
  • en-GB
  • en-US
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  • nn-NO
  • nn-NB
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  • Other locale
More languages
Output format
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