Abstract
In robust design, it is usually assumed that the experimental data are normally distributed and uncontaminated. However, in many practical applications, these assumptions can be easily violated. It is well known that normal model departure or data contamination can result in biased estimation of the optimal operating conditions of the control factors in the robust design framework. In this chapter, we investigate this possibility by examining these estimation effects on the optimal operating condition estimates in robust design. Proposed estimation methodologies for remedying the difficulties associated with data contamination and model departure are provided. Through the use of simulation, we show that the proposed methods are quite efficient when the standard assumptions hold and outperform the existing methods when the standard assumptions are violated.
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Acknowledgements
The work of Professor Ouyang was supported by the National Natural Science Foundation of China under grants NSFC-71811540414 & 71702072 and the Natural Science Foundation for Jiangsu Institutions under grant BK20170810. The work of Professor Park was supported under the framework of the international cooperation program managed by the National Research Foundation of Korea (2018K2A9A2A06019662). The work of Professor Byun was supported by the National Research Foundation of Korea (NRF) grants funded by the Korea government (2016R1D1A1B03935397).
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Ouyang, L., Park, C., Byun, JH., Leeds, M. (2019). Robust Design in the Case of Data Contamination and Model Departure. In: Lio, Y., Ng, H., Tsai, TR., Chen, DG. (eds) Statistical Quality Technologies. ICSA Book Series in Statistics. Springer, Cham. https://doi.org/10.1007/978-3-030-20709-0_15
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DOI: https://doi.org/10.1007/978-3-030-20709-0_15
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