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Abstract Details

Activity Number: 239
Type: Contributed
Date/Time: Monday, July 30, 2012 : 2:00 PM to 3:50 PM
Sponsor: Quality and Productivity Section
Abstract - #305739
Title: Monitoring Goodness of Fit for Functional Profiles
Author(s): Wei Wang*+ and Dennis Lin
Companies: Penn State University and Penn State University
Address: 425 Waupelani Dr., State College, PA, 16801, United States
Keywords: monitoring goodness of fit ; functional profiles ; control chart

It is commonly assumed that all curves are fitted equally well in monitoring functional data. A control chart for monitoring goodness of fit for functional profiles is proposed. The performance of the proposed control chart in Phase I applications is demonstrated using both real-life data and simulated data. It is shown that the parameter estimation of model fitting by the proposed method is likely to be more accuracy. Both linear case and non-linear case are discussed. The use of the proposed chart can be beneficial from a general explanation of its wide applicability to most functional profiles.

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