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On Model Structure Selection for Nonparametric Prediction Methods
Linköping University, Department of Electrical Engineering, Automatic Control. Linköping University, The Institute of Technology.
2000 (English)In: Proceedings of the 12th IFAC Symposium on System Identification, 2000, 361-366 p.Conference paper, Published paper (Refereed)
Abstract [en]

In this paper we continue to explore identification of nonlinear systems using the previously proposed concept of model-on-demand. The idea is to estimate the process dynamics locally and on-line using process data stored in a database, and has in earlier contributions proven to be capable to produce results comparable to (or better than) other nonlinear black-box approaches. The modeling part of the method is based on local polynomial modeling ideas. This has several implications on the choice of model structure, which is discussed at length in the paper. It is concluded that the NARX structure should be considered as the default choice in the local polynomial context. Furthermore, it is shown that the predictions in some situations can be enhanced by tuning other parameters that are special for the nonparametric case. The usefulness of the method is illustrated in numerical simulations. For the chosen application it is shown that the prediction errors are in order of magnitude directly comparable to more established modeling tools such as artificial neural nets.

Place, publisher, year, edition, pages
2000. 361-366 p.
Series
LiTH-ISY-R, ISSN 1400-3902 ; 2231
Keyword [en]
System identification, Local polynomial modeling
National Category
Engineering and Technology Control Engineering
Identifiers
URN: urn:nbn:se:liu:diva-91127ISBN: 978-0080435459 (print)OAI: oai:DiVA.org:liu-91127DiVA: diva2:618442
Conference
12th IFAC Symposium on System Identification, Santa Barbara, CA, USA, 21-23 June 2000
Note

WePM4-3

Available from: 2013-04-28 Created: 2013-04-17 Last updated: 2015-02-24

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Related reporthttp://swepub.kb.se/bib/swepub:oai:DiVA.org:liu-55665?vw=full&tab2=subjhttps://getinfo.de/app/details?cluster=tib&term=On+Model+Structure+Selection+for+Nonparametric+Prediction+Methods&tib=zbwkat&tib=roempp&tib=blcp&tib=dkf&tib=sudoc&tib=tema&tib=ceaba&tib=zbmkm&tib=ntis&tib=rdat&tib=tibkat&tib=citeseerx&tib=blse&tib=kmo3d&tib=iud&tib=zbmql&tib=kmoav&tib=zmat&tib=etde&tib=temaext&tib=rswb&tib=insp&tib=dkfl&tib=prob&tib=epo&hit=5
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Automatic ControlThe Institute of Technology
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CiteExportLink to record
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Citation style
  • apa
  • harvard1
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More styles
Language
  • de-DE
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  • Other locale
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Output format
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