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William H. Woodall
Researcher at Virginia Tech
Publications - 222
Citations - 19025
William H. Woodall is an academic researcher from Virginia Tech. The author has contributed to research in topics: Control chart & Statistical process control. The author has an hindex of 67, co-authored 209 publications receiving 17692 citations. Previous affiliations of William H. Woodall include University of Alabama.
Papers
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Plotting basic control charts: tutorial notes for healthcare practitioners
TL;DR: A tutorial-based approach is used to illustrate the selection and construction of four commonly used control charts using examples from healthcare and their use and interpretation of the final SPC chart are provided.
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An Overview of Phase I Analysis for Process Improvement and Monitoring
TL;DR: This article reviews and synthesizes many of the important developments that pertain to the analysis of process data in Phase I and identifies the current best practices and some opportunities for future research.
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Monitoring correlation within linear profiles using mixed models
TL;DR: In this article, profile monitoring is used when the product or process quality is best represented by a function at each time period, and then the estimated parameters are monitored over time to determine if there have been changes.
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A probabilistic and statistical view of fuzzy methods
TL;DR: Some basic concepts of fuzzy methods are reviewed, some philosophical and practical problems are pointed out, and simpler alternatives based on traditional probability and statistical theory are offered.
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Performance evaluation of two methods for online monitoring of linear calibration profiles
TL;DR: In this article, the authors compare the performance of two phase II monitoring schemes for linear profiles, one based on the classical calibration method monitoring the deviations from the regression line (referred to as the NIST method) and the second based on individually monitoring the parameters of the linear profile.