Acknowledgments
We would like to thank the authors, and the editors, for the opportunity to comment.
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Notes on contributors
Xuemin Zi
Xuemin Zi is Professor of the School of Science at Tianjin University of Technology and Education. Her research interests include statistical process control and design of experiments.
Changliang Zou
Changliang Zou is Distinguished Professor of the School of Statistics and Data Science at Nankai University. He has authored over 90 refereed journal publications in Statistics and Industrial Engineering, such as the Journal of the American Statistical Association, Annals of Statistics, Biometrika, Technometrics, the Journal of Quality Technology, and IIE Transactions. He currently serves as associate editor of Technometrics and Statistica Sinica and is in the editorial board of Journal of Quality Technology.