Kullback-Leibler divergence based kernel SOM for visualization of damage process on fuel cells

Ken Ichi Fukui, Kazuhisa Sato, Junichiro Mizusaki, Masayuki Numao

Research output: Chapter in Book/Report/Conference proceedingConference contribution

7 Citations (Scopus)

Abstract

The present work developed a basis to explore numerous damage events utilizing Self-Organizing Map (SOM) introducing Kullback-Leibler (KL) divergence as an appropriate similarity for frequency spectra of damage events. Firstly, we validated the use of KL divergence to frequency spectra of damage events. The experiment using the datasets of damage related sounds showed that the kernel SOM using KL kernel generates accurate cluster map compared to using general kernel functions and the standard SOM. Afterward, we demonstrated our approach can clarify damage process of Solid Oxide Fuel Cells (SOFC) from acoustic emission (AE) events observed by damage test of SOFC. The damage process was inferred by occurrence frequency of AE events upon the cluster map of SOM, where the occurrence density change was obtained by kernel density estimation (KDE). The presented approach can be a common foundation for the domain experts to clarify fracture mechanism of SOFC and/or to monitor SOFC operation.

Original languageEnglish
Title of host publicationProceedings - 22nd International Conference on Tools with Artificial Intelligence, ICTAI 2010
Pages233-240
Number of pages8
DOIs
Publication statusPublished - 2010 Dec 1
Event22nd International Conference on Tools with Artificial Intelligence, ICTAI 2010 - Arras, France
Duration: 2010 Oct 272010 Oct 29

Publication series

NameProceedings - International Conference on Tools with Artificial Intelligence, ICTAI
Volume1
ISSN (Print)1082-3409

Other

Other22nd International Conference on Tools with Artificial Intelligence, ICTAI 2010
CountryFrance
CityArras
Period10/10/2710/10/29

ASJC Scopus subject areas

  • Software
  • Artificial Intelligence
  • Computer Science Applications

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