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Dynamic network reconstruction from heterogeneous datasets
University of Luxembourg, Esch-sur-Alzette, Luxembourg.
Halmstad University, School of Information Technology, Halmstad Embedded and Intelligent Systems Research (EIS).ORCID iD: 0000-0002-9738-4148
Department of Cognitive Robotics, TU Delft, Delft, Netherlands.
Linköpings universitet, Linkoping, Sweden.
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2021 (English)In: Automatica, ISSN 0005-1098, E-ISSN 1873-2836, Vol. 123, article id 109339Article in journal (Refereed) Published
Abstract [en]

Performing multiple experiments is common when learning internal mechanisms of complex systems. These experiments can include perturbations of parameters or external disturbances. A challenging problem is to efficiently incorporate all collected data simultaneously to infer the underlying dynamic network. This paper addresses the reconstruction of dynamic networks from heterogeneous datasets under the assumption that the underlying networks share the same Boolean structure across all experiments. Parametric models are derived for dynamical structure functions, which describe causal interactions between measured variables. Multiple datasets are integrated into one regression problem with additional demands on group sparsity to assure network sparsity and structure consistency. To acquire structured group sparsity, we propose a sampling-based method, together with extended versions of l1-methods and sparse Bayesian learning. The performance of the proposed methods is benchmarked in numerical simulation. In summary, this paper presents efficient methods on network reconstruction from multiple experiments, and reveals practical experience that could guide applications. © 2020 Elsevier Ltd.

Place, publisher, year, edition, pages
Amsterdam: Elsevier, 2021. Vol. 123, article id 109339
Keywords [en]
Heterogeneity, Multiple experiments, Network reconstruction, Sparsity, System identification
National Category
Control Engineering
Identifiers
URN: urn:nbn:se:hh:diva-45508DOI: 10.1016/j.automatica.2020.109339ISI: 000598167700006Scopus ID: 2-s2.0-85096700788OAI: oai:DiVA.org:hh-45508DiVA, id: diva2:1589377
Available from: 2021-08-31 Created: 2021-08-31 Last updated: 2022-05-03Bibliographically approved

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Thunberg, Johan

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CiteExportLink to record
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Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
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  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf