Analysis of Extended Partial Least Squares for Monitoring Large-Scale Processes

Q. Chen, Uwe Kruger

Research output: Contribution to journalArticle

28 Citations (Scopus)


This paper theoretically analysis the recently proposed "Extended Partial Least Squares" (EPLS) algorithm. After pointing out some conceptual deficiencies, a revised algorithm is introduced that covers the middle ground between Partial Least Squares and Principal Component Analysis. It maximises a covariance criterion between a cause and an effect variable set (partial least squares) and allows a complete reconstruction of the recorded data (principal component analysis). The new and conceptually simpler EPLS algorithm has successfully been applied in detecting and diagnosing various fault conditions, where the original EPLS algorithm did only offer fault detection.
Original languageEnglish
Pages (from-to)807-813
Number of pages7
JournalIEEE Transactions on Control Systems Technology
Volume13 (5)
Issue number5
Publication statusPublished - Sep 2005

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Electrical and Electronic Engineering

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