Effect of Measurement Errors on the Performance of Coefficient of Variation Chart With Short Production Runs
This paper investigates the performance of the coefficient of variation chart in the presence of measurement errors for finite production horizon. We study a two-sided Shewhart coefficient of variation chart with measurement errors for detecting both increase and decrease in the coefficient of varia...
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| Format: | Article |
| Language: | English |
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IEEE
2020-01-01
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| Series: | IEEE Access |
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| Online Access: | https://ieeexplore.ieee.org/document/9056470/ |
| _version_ | 1819275715782115328 |
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| author | Ming Ha Lee Michael B. C. Khoo Xinying Chew Patrick H. H. Then |
| author_facet | Ming Ha Lee Michael B. C. Khoo Xinying Chew Patrick H. H. Then |
| author_sort | Ming Ha Lee |
| collection | DOAJ |
| description | This paper investigates the performance of the coefficient of variation chart in the presence of measurement errors for finite production horizon. We study a two-sided Shewhart coefficient of variation chart with measurement errors for detecting both increase and decrease in the coefficient of variation for short run processes using an error model with linear covariate. The performance of the coefficient of variation chart is evaluated by the truncated average run length and the expected value of the truncated average run length. The numerical results indicate that the precision error and the accuracy error have negative effect of the measurement errors on the performance of the coefficient of variation chart. In addition, the constant coefficient B in the linear covariate error model reduces the negative effect of the measurement errors on the performance of the coefficient of variation chart. However, taking multiple measurements per item in each sample is not an effective method to enhance the performance of the coefficient of variation chart. An example is provided to illustrate the implementation of the coefficient of variation chart. In addition, the economic criterion is also added to study the effect of measurement errors on the expected inspection cost. The result shows that an increase in the precision error reduces the expected inspection cost. |
| first_indexed | 2024-12-23T23:28:44Z |
| format | Article |
| id | doaj.art-721888969a7c4b3691f3ad1e39a2d735 |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-12-23T23:28:44Z |
| publishDate | 2020-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-721888969a7c4b3691f3ad1e39a2d7352022-12-21T17:26:09ZengIEEEIEEE Access2169-35362020-01-018722167222810.1109/ACCESS.2020.29854109056470Effect of Measurement Errors on the Performance of Coefficient of Variation Chart With Short Production RunsMing Ha Lee0https://orcid.org/0000-0003-2096-5865Michael B. C. Khoo1https://orcid.org/0000-0002-3245-1127Xinying Chew2https://orcid.org/0000-0001-5539-1959Patrick H. H. Then3https://orcid.org/0000-0002-6079-2527Faculty of Engineering, Computing and Science, Swinburne University of Technology Sarawak Campus, Sarawak, MalaysiaSchool of Mathematical Sciences, Universiti Sains Malaysia, Penang, MalaysiaSchool of Computer Sciences, Universiti Sains Malaysia, Penang, MalaysiaFaculty of Engineering, Computing and Science, Swinburne University of Technology Sarawak Campus, Sarawak, MalaysiaThis paper investigates the performance of the coefficient of variation chart in the presence of measurement errors for finite production horizon. We study a two-sided Shewhart coefficient of variation chart with measurement errors for detecting both increase and decrease in the coefficient of variation for short run processes using an error model with linear covariate. The performance of the coefficient of variation chart is evaluated by the truncated average run length and the expected value of the truncated average run length. The numerical results indicate that the precision error and the accuracy error have negative effect of the measurement errors on the performance of the coefficient of variation chart. In addition, the constant coefficient B in the linear covariate error model reduces the negative effect of the measurement errors on the performance of the coefficient of variation chart. However, taking multiple measurements per item in each sample is not an effective method to enhance the performance of the coefficient of variation chart. An example is provided to illustrate the implementation of the coefficient of variation chart. In addition, the economic criterion is also added to study the effect of measurement errors on the expected inspection cost. The result shows that an increase in the precision error reduces the expected inspection cost.https://ieeexplore.ieee.org/document/9056470/Coefficient of variationmeasurement errorsshort production runs |
| spellingShingle | Ming Ha Lee Michael B. C. Khoo Xinying Chew Patrick H. H. Then Effect of Measurement Errors on the Performance of Coefficient of Variation Chart With Short Production Runs IEEE Access Coefficient of variation measurement errors short production runs |
| title | Effect of Measurement Errors on the Performance of Coefficient of Variation Chart With Short Production Runs |
| title_full | Effect of Measurement Errors on the Performance of Coefficient of Variation Chart With Short Production Runs |
| title_fullStr | Effect of Measurement Errors on the Performance of Coefficient of Variation Chart With Short Production Runs |
| title_full_unstemmed | Effect of Measurement Errors on the Performance of Coefficient of Variation Chart With Short Production Runs |
| title_short | Effect of Measurement Errors on the Performance of Coefficient of Variation Chart With Short Production Runs |
| title_sort | effect of measurement errors on the performance of coefficient of variation chart with short production runs |
| topic | Coefficient of variation measurement errors short production runs |
| url | https://ieeexplore.ieee.org/document/9056470/ |
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