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A Visualization Decision Support Tool for Multivariate SPC Diagnosis Using Marginal CUSUM Glyphs

Summary: [This abstract is based on the authors' abstract.] A proposed visualization tool consisting of a two-sided CUSUM and star glyphs is capable of determining when and which variables contribute to out-of-control signals. Combined with traditional multivariate control charts, the proposed method provides additional diagnostic information and can handle responses with high dimensions. Simulation results provide a guideline for implementing the methodology.

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  • Topics: Statistical Process Control (SPC)
  • Keywords: Cumulative sum control chart (CUSUM), Multivariate control charts, Out-of-control process, Monitoring
  • Author: Chang, Shing I.; Chou, Shih-Hsiung
  • Journal: Quality Engineering