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Optimal variable sample size and sampling interval "mean squared error" chart
Yang, Chih-ching; Yang, Su-fen - In: The service industries journal 33 (2013) 6, pp. 652-665
Persistent link: https://www.econbiz.de/10009758737
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A two-phase preventive maintenance policy considering imperfect repair and postponed replacement
Li, Yang; Ye, Zhi-sheng; Lee, Chi-Guhn; Yang, Su-fen; … - In: European journal of operational research : EJOR 274 (2019) 3, pp. 966-977
Persistent link: https://www.econbiz.de/10011990271
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A Phase Ii Multivariate Ewma Chart for Monitoring Multi-Dimensional Ratios of Process Means with Individual Observations
Yeh, Arthur; Yang, Su-Fen; Chou, Chiu-Chuan - 2023
In recent years, there has been a resurgence in the development of control charts for monitoring the mean of the ratio of two correlated variables. However, most of the existing research has focused on the univariate mean of the ratio of two correlated variables under the assumption that the...
Persistent link: https://www.econbiz.de/10014260731