An exponentially weighted moving average control chart for zero-truncated Poisson processes: a design and analytic framework with fast initial response feature (Record no. 84109)

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fixed length control field 02267nab a22001817a 4500
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control field 20230201144513.0
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100 1# - MAIN ENTRY--PERSONAL NAME
Preferred name for the person Leong, Robert Neil F.
Relator term author
245 13 - TITLE STATEMENT
Title An exponentially weighted moving average control chart for zero-truncated Poisson processes: a design and analytic framework with fast initial response feature
264 #4 - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT)
Date of publication, distribution, etc 2017
520 3# - SUMMARY, ETC.
Summary, etc Inspired by the capability of exponentially-weighted moving average (EWMA) charts to balance sensitivity and false alarm rates, we propose one for zero-truncated Poisson processes. We present a systematic design and analytic framework for implementation. Further, we add a fast initial response (FIR) feature which ideally increases sensitivity without compromising false alarm rates. The proposed charts (basic and with FIR feature) were evaluated based on both in-control average run length (ARL0) to measure false alarm rate and out-of-control average run length (ARL1) to measure sensitivity to detect unwanted shifts. The evaluation process used a Markov chain intensive simulation study at different settings for different weighting parameters (ω). Empirical results suggest that for both scenarios, the basic chart had: (1) exponentially increasing ARLs as a function of the chart threshold L; and (2) ARLs were longer for smaller ωs. Moreover, the added FIR feature has indeed improved ARL1 within the range of 5% - 55%, resulting to quicker shift detections at a relatively minimal loss in ARL0. These results were also compared to Shewhart and CUSUM control charts at similar settings, and it was observed that the EWMA charts generally performed better by striking a balance between higher ARL0 and lower ARL1. These advantages of the EWMA charts were more pronounced when larger shifts in the parameter λ happened. Finally, a case application in monitoring hospital surgical out-of-controls is presented to demonstrate its usability in a real-world setting.
650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name as entry element Exponentially weighted moving average
700 1# - ADDED ENTRY--PERSONAL NAME
Personal name Co, Frumencio F.
Relator term author
700 1# - ADDED ENTRY--PERSONAL NAME
Personal name Mojica, Vio Jianu C.
Relator term author
700 1# - ADDED ENTRY--PERSONAL NAME
Personal name Tan, Daniel Stanley Y.
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773 ## - HOST ITEM ENTRY
Title The Philippine Statistician
Relationship information vol. 66, no. 1: (2017), pages 21-40
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Source of classification or shelving scheme
Item type JOURNAL ARTICLE
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Withdrawn status Lost status Source of classification or shelving scheme Damaged status Not for loan Permanent Location Current Location Shelving location Date acquired Date last seen Price effective from Item type
          COLLEGE LIBRARY COLLEGE LIBRARY PERIODICALS 2023-02-01 2023-02-01 2023-02-01 JOURNAL ARTICLE