Process Capability Index for Logistic Regression Profile Based on pmk S Index

  • سال انتشار: 1394
  • محل انتشار: ماهنامه بین المللی مهندسی، دوره: 28، شماره: 8
  • کد COI اختصاصی: JR_IJE-28-8_011
  • زبان مقاله: انگلیسی
  • تعداد مشاهده: 566
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نویسندگان

M Rezaye Abbasi Charkhi

Industrial Engineering Department, Faculty of Engineering, Amirkabir University of Technology Tehran Polytechnic, Tehran, Iran

M Aminnayeri

Industrial Engineering Department, Faculty of Engineering, Amirkabir University of Technology Tehran Polytechnic, Tehran, Iran

A Amiri

Industrial Engineering Department, Faculty of Engineering, Shahed University, Tehran, Iran

چکیده

A profile is a relationship between a response variable and one or more independent variables that can describe the quality of a process or product. On the other hand, for an in-control process, capability indices are criteria for process quality improvement that allows meeting customer expectations.Although a considerable number of applications and monitoring methods have been already proposed for profiles, a few researches have focused on the process capability index of profiles. In this paper, wepropose a new Spmk index to measure process capability when the quality of process is characterized bya logistic regression profile. In addition, we present an approximate (1- )100% confidence interval based on percentile bootstrap method. The performance of the proposed index and correspondingconfidence interval is evaluated through simulation studies. The result shows that when the number ofobservations in each level increases the index performs better. Furthermore, increasing number of levels leads to improving precision of the proposed index. Also, the coverage rates of the confidence intervals are greater than 93.6% lower limit of the stated nominal in most cases. Finally, the application of the proposed index is illustrated through a real case

کلیدواژه ها

Profile Monitoring , Logistic Profile , Processes Capability Index

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