An effective approach to detect the source(s) of out-of-control signals in productive processes by vector error correction (VEC) residual and Hotelling’s T2 decomposition techniques

作者：

Highlights：

• The Hotelling’s T2 chart accurately identified outliers.

• The residual VEC pointed to the interrelationship between the variables.

• Hotelling’s T2 decomposition technique was able to identify the variation source.

• This methodology is recommended for autocorrelated processes.

摘要

•The Hotelling’s T2 chart accurately identified outliers.•The residual VEC pointed to the interrelationship between the variables.•Hotelling’s T2 decomposition technique was able to identify the variation source.•This methodology is recommended for autocorrelated processes.

论文关键词：Multivariate control charts,Hotelling’s T2 decomposition,Vector error correction,Manufacturing processes,Autocorrelation

论文评审过程：Received 15 June 2021, Revised 30 August 2021, Accepted 24 September 2021, Available online 30 September 2021, Version of Record 7 October 2021.

论文官网地址：https://doi.org/10.1016/j.eswa.2021.115979