dc.contributor.advisor | 楊素芬 | zh_TW |
dc.contributor.author (Authors) | 林政憲 | zh_TW |
dc.creator (作者) | 林政憲 | zh_TW |
dc.date (日期) | 2009 | en_US |
dc.date.accessioned | 8-Dec-2010 14:54:06 (UTC+8) | - |
dc.date.available | 8-Dec-2010 14:54:06 (UTC+8) | - |
dc.date.issued (上傳時間) | 8-Dec-2010 14:54:06 (UTC+8) | - |
dc.identifier (Other Identifiers) | G0097354001 | en_US |
dc.identifier.uri (URI) | http://nccur.lib.nccu.edu.tw/handle/140.119/49600 | - |
dc.description (描述) | 碩士 | zh_TW |
dc.description (描述) | 國立政治大學 | zh_TW |
dc.description (描述) | 統計研究所 | zh_TW |
dc.description (描述) | 97354001 | zh_TW |
dc.description (描述) | 98 | zh_TW |
dc.description.abstract (摘要) | The CUSUM control charts have been widely used in detecting small process shifts since it was first introduced by Page (1954). And recent studies have shown that adaptive charts can improve the efficiency and performance of traditional Shewhart charts. To monitor the process mean and variance in a single chart, the loss function is used as a measure statistic in this article. The loss function can measure the process quality loss while the process mean and/or variance has shifted. This study combines the three features: adaption, CUSUM and the loss function, and proposes the optimal VSSI, VSI, and FP CUSUM Loss chart. The performance of the proposed charts is measured by using Average Time to Signal (ATS) and Average Number of Observations to Signal (ANOS). The ATS and ANOS calculations are based on Markov chain approach. The performance comparisons between the proposed charts and some existing charts, such as X-bar+S^2 charts and CUSUM X-bar+S^2 charts, are illustrated by numerical analyses and some examples. From the results of the numerical analyses, it shows that the optimal VSSI CUSUM Loss chart has better performance than the optimal VSI CUSUM Loss chart, optimal FP CUSUM Loss chart, CUSUM X-bar+S^2 charts and X-bar+S^2 charts. Furthermore, using a single chart to monitor a process is not only easier but more efficient than using two charts simultaneously. Hence, the adaptive CUSUM Loss charts are recommended in real process. | zh_TW |
dc.description.abstract (摘要) | The CUSUM control charts have been widely used in detecting small process shifts since it was first introduced by Page (1954). And recent studies have shown that adaptive charts can improve the efficiency and performance of traditional Shewhart charts. To monitor the process mean and variance in a single chart, the loss function is used as a measure statistic in this article. The loss function can measure the process quality loss while the process mean and/or variance has shifted. This study combines the three features: adaption, CUSUM and the loss function, and proposes the optimal VSSI, VSI, and FP CUSUM Loss chart. The performance of the proposed charts is measured by using Average Time to Signal (ATS) and Average Number of Observations to Signal (ANOS). The ATS and ANOS calculations are based on Markov chain approach. The performance comparisons between the proposed charts and some existing charts, such as X-bar+S^2 charts and CUSUM X-bar+S^2 charts, are illustrated by numerical analyses and some examples. From the results of the numerical analyses, it shows that the optimal VSSI CUSUM Loss chart has better performance than the optimal VSI CUSUM Loss chart, optimal FP CUSUM Loss chart, CUSUM X-bar+S^2 charts and X-bar+S^2 charts. Furthermore, using a single chart to monitor a process is not only easier but more efficient than using two charts simultaneously. Hence, the adaptive CUSUM Loss charts are recommended in real process. | en_US |
dc.description.tableofcontents | 1. INTRODUCTION 12. DESCRIPTION OF IN-CONTROL AND OUT-OF-CONTROL PROCESS QUALITY VARIABLES 33. OPTIMAL FP CUSUM LOSS CHART 43.1 Description of the optimal FP CUSUM Loss chart 43.2 Design of the optimal FP CUSUM Loss chart 63.2.1 The Performance Measurement 63.2.2 ARL calculation based on Markov chain approach 63.2.3 Computing the upper control limit H under a specified k 93.2.4 The procedure of acquiring the optimal reference value k and upper control limit H 93.3 Numerical analyses for the optimal FP CUSUM Loss chart 103.4 Example for the optimal FP CUSUM Loss Chart 164. OPTIMAL VSI CUSUM LOSS CHART 194.1 Description of the optimal VSI CUSUM Loss chart 194.2 Design of the optimal VSI CUSUM Loss chart 214.2.1 The performance measurement 214.2.2 ATS calculation based on Markov chain approach 224.2.3 Computing the warning control limit W under k and H 244.2.4 The procedure of acquiring the optimal process parameters 244.3 Numerical analyses for the optimal VSI CUSUM Loss chart 254.4 Example for the optimal VSI CUSUM Loss Chart 295. OPTIMAL VSSI CUSUM LOSS CHART 325.1 Description of the optimal VSSI CUSUM Loss chart 325.2 Design of the optimal VSSI CUSUM Loss chart 355.2.1 The performance measurement 355.2.2 ATS and ANOS calculations based on Markov chain approach 365.2.3 Computing the warning control limit W under k and H 385.2.4 Computing the long sampling interval t1 385.2.5 The procedure of acquiring the optimal process parameters 395.3 Numerical analyses for the optimal VSSI CUSUM Loss chart 405.4 Example for the optimal VSSI CUSUM Loss Chart 446. CONCLUSION AND FUTURE STUDY 47REFERENCES 48APPENDIX 51 | zh_TW |
dc.format.extent | 875650 bytes | - |
dc.format.mimetype | application/pdf | - |
dc.language.iso | en_US | - |
dc.source.uri (資料來源) | http://thesis.lib.nccu.edu.tw/record/#G0097354001 | en_US |
dc.subject (關鍵詞) | 累積和管制圖 | zh_TW |
dc.subject (關鍵詞) | 適應性管制圖 | zh_TW |
dc.subject (關鍵詞) | VSI管制圖 | zh_TW |
dc.subject (關鍵詞) | VSS管制圖 | zh_TW |
dc.subject (關鍵詞) | VSSI管制圖 | zh_TW |
dc.subject (關鍵詞) | 損失函數 | zh_TW |
dc.subject (關鍵詞) | 馬可夫鍊 | zh_TW |
dc.subject (關鍵詞) | 基因演算法 | zh_TW |
dc.subject (關鍵詞) | CUSUM control chart | en_US |
dc.subject (關鍵詞) | Adaptive control chart | en_US |
dc.subject (關鍵詞) | VSI control chart | en_US |
dc.subject (關鍵詞) | VSS control chart | en_US |
dc.subject (關鍵詞) | VSSI control chart | en_US |
dc.subject (關鍵詞) | Loss function | en_US |
dc.subject (關鍵詞) | Markov chain | en_US |
dc.subject (關鍵詞) | Genetic algorithm | en_US |
dc.title (題名) | 適應性累積和損失管制圖之研究 | zh_TW |
dc.title (題名) | The Study of Adaptive CUSUM Loss Control Charts | en_US |
dc.type (資料類型) | thesis | en |
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