A modified method on estimating and assessing the process yield with imprecise multiple characteristics

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AFSHARI R.; SADEGHPOUR GILDEH B.; Ahmadi Nadi A.

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Journal: Iranian Journal of Fuzzy Systems Year:2020 | Volume:17 | Issue:6 Page(s): 115-131

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Information Journal Paper

Title

A modified method on estimating and assessing the process yield with imprecise multiple characteristics

Author(s)

AFSHARI R. | SADEGHPOUR GILDEH B. | Ahmadi Nadi A. | Issue Writer Certificate

Keywords

Process capability indicesQ2

process yieldQ2

hypothesis testingQ2

p-valueQ2

critical valueQ2

fuzzy numbers arithmeticQ2

Abstract

The conventional advanced process yield index ST pk is widely applied in industry to provide an exact measure of the overall production yield whose quality characteristics are mutually independent and multivariate normally distributed. While one can find numerous studies that consider a crisp estimation of ST pk to evaluate and test the overall process yield, the recorded measurements of product quality characteristics are not always reported precisely. This paper presents a new fuzzy-based method to assess the overall process yield in the presence of a specified degree of ambiguity for the sample data. After finding a fuzzy estimator of ST pk based on Buckley's approach, a new fuzzy three-decision testing rule is proposed to evaluate process performance based on critical values and fuzzy p-values. Subsequently, this work extends the application of the proposed method to the class of correlated characteristics by adopting the principal component analysis technique. The introduced fuzzy testing procedure includes the existing customary binary-decision testing rule as a spacial case. In addition, comparative studies are conducted to display the benefits of the proposed rule. Finally, two industrial examples are given for independent and correlated characteristics to guide the practitioners.

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APA: Copy

AFSHARI, R., SADEGHPOUR GILDEH, B., & Ahmadi Nadi, A.. (2020). A modified method on estimating and assessing the process yield with imprecise multiple characteristics. IRANIAN JOURNAL OF FUZZY SYSTEMS, 17(6 ), 115-131. SID. https://sid.ir/paper/368507/en

Vancouver: Copy

AFSHARI R., SADEGHPOUR GILDEH B., Ahmadi Nadi A.. A modified method on estimating and assessing the process yield with imprecise multiple characteristics. IRANIAN JOURNAL OF FUZZY SYSTEMS[Internet]. 2020;17(6 ):115-131. Available from: https://sid.ir/paper/368507/en

IEEE: Copy

R. AFSHARI, B. SADEGHPOUR GILDEH, and A. Ahmadi Nadi, “A modified method on estimating and assessing the process yield with imprecise multiple characteristics,” IRANIAN JOURNAL OF FUZZY SYSTEMS, vol. 17, no. 6 , pp. 115–131, 2020, [Online]. Available: https://sid.ir/paper/368507/en

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