Pub Date : 2012-10-01DOI: 10.1080/10170669.2012.721211
Dan Wang, Yu-Bin Wu, Ji-Bo Wang, P. Ji
In this article we consider a single-machine scheduling problem with decreasing time-dependent job-processing times. Decreasing time-dependent job-processing times means that its processing time is a non-increasing function of its execution start time. The objective is to find a schedule that minimizes total absolute differences in waiting times. We show that the optimal schedule is V-shaped: jobs are arranged in the descending order of their normal processing times if they are placed before the job with the smallest normal processing time, but in the ascending order of their normal processing times if placed after it. We prove several other properties of an optimal schedule, and introduce two heuristic algorithms that are tested against a lower bound. We also provide computational results to evaluate the performance of the heuristic algorithms.
{"title":"Single-machine scheduling with decreasing time-dependent processing times to minimize total absolute differences in waiting times","authors":"Dan Wang, Yu-Bin Wu, Ji-Bo Wang, P. Ji","doi":"10.1080/10170669.2012.721211","DOIUrl":"https://doi.org/10.1080/10170669.2012.721211","url":null,"abstract":"In this article we consider a single-machine scheduling problem with decreasing time-dependent job-processing times. Decreasing time-dependent job-processing times means that its processing time is a non-increasing function of its execution start time. The objective is to find a schedule that minimizes total absolute differences in waiting times. We show that the optimal schedule is V-shaped: jobs are arranged in the descending order of their normal processing times if they are placed before the job with the smallest normal processing time, but in the ascending order of their normal processing times if placed after it. We prove several other properties of an optimal schedule, and introduce two heuristic algorithms that are tested against a lower bound. We also provide computational results to evaluate the performance of the heuristic algorithms.","PeriodicalId":369256,"journal":{"name":"Journal of The Chinese Institute of Industrial Engineers","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134642770","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2012-10-01DOI: 10.1080/10170669.2012.721096
Jing Zhao, Jie Wei
This article considers the pricing game of two supply chains which compete in the market with two substitutable products in a fuzzy environment. The two substitutable products supply chains are either centralized, i.e. manufacturers sell their own products, or they are decentralized where manufacturers sell their products to the market through retailers. By using game and fuzzy set theories, two pricing game models are established and the corresponding optimal pricing strategies in closed form are also given. At last, some managerial analyses are given by numerical approach.
{"title":"Pricing game of two substitutable products supply chains under centralized and decentralized decisions","authors":"Jing Zhao, Jie Wei","doi":"10.1080/10170669.2012.721096","DOIUrl":"https://doi.org/10.1080/10170669.2012.721096","url":null,"abstract":"This article considers the pricing game of two supply chains which compete in the market with two substitutable products in a fuzzy environment. The two substitutable products supply chains are either centralized, i.e. manufacturers sell their own products, or they are decentralized where manufacturers sell their products to the market through retailers. By using game and fuzzy set theories, two pricing game models are established and the corresponding optimal pricing strategies in closed form are also given. At last, some managerial analyses are given by numerical approach.","PeriodicalId":369256,"journal":{"name":"Journal of The Chinese Institute of Industrial Engineers","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127225555","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2012-10-01DOI: 10.1080/10170669.2012.727479
Yi-Kuei Lin, Cheng-Fu Huang
Under the assumption that each edge capacity of the network is deterministic, the quickest path problem is to find a path that sends a specific amount of data from the source to the target such that the transmission time is minimized. In many real-time networks such as computer networks, each edge should have stochastic capacity and a transmission error rate. Such a network is called a multi-state computer network. Therefore, within transmission error rate and time, we try to compute the probability that d units of data can be sent through the multi-state computer network. Such a probability called as system reliability, which is a performance indicator provides managers with an understanding of the capability of the system and indicates possible improvements. This article mainly proposes an efficient algorithm to evaluate the system reliability in terms of the approach of minimal paths.
{"title":"A multi-state computer network within transmission error rate and time constraints","authors":"Yi-Kuei Lin, Cheng-Fu Huang","doi":"10.1080/10170669.2012.727479","DOIUrl":"https://doi.org/10.1080/10170669.2012.727479","url":null,"abstract":"Under the assumption that each edge capacity of the network is deterministic, the quickest path problem is to find a path that sends a specific amount of data from the source to the target such that the transmission time is minimized. In many real-time networks such as computer networks, each edge should have stochastic capacity and a transmission error rate. Such a network is called a multi-state computer network. Therefore, within transmission error rate and time, we try to compute the probability that d units of data can be sent through the multi-state computer network. Such a probability called as system reliability, which is a performance indicator provides managers with an understanding of the capability of the system and indicates possible improvements. This article mainly proposes an efficient algorithm to evaluate the system reliability in terms of the approach of minimal paths.","PeriodicalId":369256,"journal":{"name":"Journal of The Chinese Institute of Industrial Engineers","volume":"357 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115852924","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2012-09-01DOI: 10.1080/10170669.2012.715596
Hong-Fwu Yu, Wen-Ching Yu, Zih-Ping Wu
This article deals with a mixed policy between precise inspection and CSP-T with inspection errors (Types I and II) and return cost. With respect to non-repairable and repairable products, the following decision variables are determined such that the unit net profit is maximal: (1) the optimal sampling plan for CSP-T and (2) the optimal proportions on which precise inspections should be taken for the non-inspected items, the non-defectives, and the defectives identified in the procedure of CSP-T. Overall, the analytical results indicate that depending on ten parameters (the process defective fraction, Type I error, Type II error, the selling price of an item, the unit formal repair cost, the unit informal repair cost, the unit return cost, the unit opportunity cost, the unit inspection cost, and the unit cost of precise inspection), both of non-repairable and repairable products have two main optimal inspection policies for CSP-T: “Do 100% inspection consecutively” and “Stop inspection after 100% inspection”; besides, for the non-inspected items, the non-defectives, and the defectives identified in the procedure of CSP-T, there are two main proportions on which precise inspection should be performed: 100% and 0%.
{"title":"A mixed inspection policy for csp-t and precise inspection under inspection errors and return cost","authors":"Hong-Fwu Yu, Wen-Ching Yu, Zih-Ping Wu","doi":"10.1080/10170669.2012.715596","DOIUrl":"https://doi.org/10.1080/10170669.2012.715596","url":null,"abstract":"This article deals with a mixed policy between precise inspection and CSP-T with inspection errors (Types I and II) and return cost. With respect to non-repairable and repairable products, the following decision variables are determined such that the unit net profit is maximal: (1) the optimal sampling plan for CSP-T and (2) the optimal proportions on which precise inspections should be taken for the non-inspected items, the non-defectives, and the defectives identified in the procedure of CSP-T. Overall, the analytical results indicate that depending on ten parameters (the process defective fraction, Type I error, Type II error, the selling price of an item, the unit formal repair cost, the unit informal repair cost, the unit return cost, the unit opportunity cost, the unit inspection cost, and the unit cost of precise inspection), both of non-repairable and repairable products have two main optimal inspection policies for CSP-T: “Do 100% inspection consecutively” and “Stop inspection after 100% inspection”; besides, for the non-inspected items, the non-defectives, and the defectives identified in the procedure of CSP-T, there are two main proportions on which precise inspection should be performed: 100% and 0%.","PeriodicalId":369256,"journal":{"name":"Journal of The Chinese Institute of Industrial Engineers","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117345332","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2012-08-24DOI: 10.1080/10170669.2012.710878
Zhisong Chen, Huiming Wang
The eastern route of south-to-north water diversion (SNWD) project is a large-scale multi-source, multi-objective and multi-project inter-basin system. Constructed to pump, store and supply water to achieve rational water distribution in North China, the project is close to completion currently, and faced with optimal operations management problems. Based on the project practice, this article develops a supply chain system for the SNWD project, where a Stackelberg game model under decentralized decisions, an asymmetric Nash bargaining model, and an asymmetric Nash bargaining model with risk of breakdown and discount are respectively built, and numerical analysis are carried out for managerial insights. This study suggests that: (i) asymmetric Nash bargaining provides a more efficient mechanism for south-to-north water diversion supply chain to achieve cooperative operations through non-cooperative way; (ii) the Agent's sharing profit earned is positively related to his bargaining power, and the optimal wholesale price and the sharing profit of the supplier increases as the bargaining power increases; (iii) due to the existence of the discount factor and the risk of breakdown, both sides in the bargaining game will make a concession to achieve a stationary solution for asymmetric Nash bargaining problem, which is beneficial for both sides of the SNWD supply chain; (iv) the optimal wholesale price increases as the probability of breakdown in disagreement increases; the supplier's optimal profit increases and the external distributor's optimal profit decreases as the probability of breakdown in disagreement increases.
{"title":"Asymmetric Nash bargaining model for the eastern route of south-to-north water diversion supply chain cooperative operations","authors":"Zhisong Chen, Huiming Wang","doi":"10.1080/10170669.2012.710878","DOIUrl":"https://doi.org/10.1080/10170669.2012.710878","url":null,"abstract":"The eastern route of south-to-north water diversion (SNWD) project is a large-scale multi-source, multi-objective and multi-project inter-basin system. Constructed to pump, store and supply water to achieve rational water distribution in North China, the project is close to completion currently, and faced with optimal operations management problems. Based on the project practice, this article develops a supply chain system for the SNWD project, where a Stackelberg game model under decentralized decisions, an asymmetric Nash bargaining model, and an asymmetric Nash bargaining model with risk of breakdown and discount are respectively built, and numerical analysis are carried out for managerial insights. This study suggests that: (i) asymmetric Nash bargaining provides a more efficient mechanism for south-to-north water diversion supply chain to achieve cooperative operations through non-cooperative way; (ii) the Agent's sharing profit earned is positively related to his bargaining power, and the optimal wholesale price and the sharing profit of the supplier increases as the bargaining power increases; (iii) due to the existence of the discount factor and the risk of breakdown, both sides in the bargaining game will make a concession to achieve a stationary solution for asymmetric Nash bargaining problem, which is beneficial for both sides of the SNWD supply chain; (iv) the optimal wholesale price increases as the probability of breakdown in disagreement increases; the supplier's optimal profit increases and the external distributor's optimal profit decreases as the probability of breakdown in disagreement increases.","PeriodicalId":369256,"journal":{"name":"Journal of The Chinese Institute of Industrial Engineers","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123403755","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2012-08-24DOI: 10.1080/10170669.2012.713033
R. Sukwadi, Ching-Chow Yang, Liu Fan
The rapid growth of the service sector in almost every economy in the world has created a significant amount of interest in service operations. In practice, the impact of the service experience on consumers’ satisfaction is important for service marketers. Many service providers have sought the use of various enhancement actions to improve their performance. To be really successful, a service provider must create value for its customers. Based on the five dimensions of SERVQUAL, a questionnaire is utilized to evaluate the service experience of customers from the view of customer journey. In addition, the article also explores the concept of the importance–satisfaction model, the refined Kano–Blue Ocean model, and associates it with customer value. The results of the study demonstrate a new framework, illustrating the service experience, which dimensions influence the service experience, how to select appropriate practical actions, and how it is linked to customer value.
{"title":"Capturing customer value creation based on service experience – a case study on News Café","authors":"R. Sukwadi, Ching-Chow Yang, Liu Fan","doi":"10.1080/10170669.2012.713033","DOIUrl":"https://doi.org/10.1080/10170669.2012.713033","url":null,"abstract":"The rapid growth of the service sector in almost every economy in the world has created a significant amount of interest in service operations. In practice, the impact of the service experience on consumers’ satisfaction is important for service marketers. Many service providers have sought the use of various enhancement actions to improve their performance. To be really successful, a service provider must create value for its customers. Based on the five dimensions of SERVQUAL, a questionnaire is utilized to evaluate the service experience of customers from the view of customer journey. In addition, the article also explores the concept of the importance–satisfaction model, the refined Kano–Blue Ocean model, and associates it with customer value. The results of the study demonstrate a new framework, illustrating the service experience, which dimensions influence the service experience, how to select appropriate practical actions, and how it is linked to customer value.","PeriodicalId":369256,"journal":{"name":"Journal of The Chinese Institute of Industrial Engineers","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116896174","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2012-08-24DOI: 10.1080/10170669.2012.710879
Jun Ye
This article proposes the similarity measure based on the expected interval of generalized trapezoidal fuzzy numbers (GTFNs) (called the expected similarity measure between GTFNs) and its group decision making method. The expected similarity measure combines the concepts of the expected interval of GTFNs and the Dice similarity measure between two vectors for calculating the degree of similarity between GTFNs. A group decision-making method is established based on the expected similarity measure and the expected weight value for solving the multicriteria group decision-making problem under linguistic information, in which the criteria weights and values are given with the linguistic values of GTFNs with respect to the nine linguistic terms. Through the weighted expected similarity measure between each alternative and the ideal alternative, the ranking order of all the alternatives can be determined and the best one(s) is easily identified as well. A practical example shows that the proposed method is applicable.
{"title":"The Dice similarity measure between generalized trapezoidal fuzzy numbers based on the expected interval and its multicriteria group decision-making method","authors":"Jun Ye","doi":"10.1080/10170669.2012.710879","DOIUrl":"https://doi.org/10.1080/10170669.2012.710879","url":null,"abstract":"This article proposes the similarity measure based on the expected interval of generalized trapezoidal fuzzy numbers (GTFNs) (called the expected similarity measure between GTFNs) and its group decision making method. The expected similarity measure combines the concepts of the expected interval of GTFNs and the Dice similarity measure between two vectors for calculating the degree of similarity between GTFNs. A group decision-making method is established based on the expected similarity measure and the expected weight value for solving the multicriteria group decision-making problem under linguistic information, in which the criteria weights and values are given with the linguistic values of GTFNs with respect to the nine linguistic terms. Through the weighted expected similarity measure between each alternative and the ideal alternative, the ranking order of all the alternatives can be determined and the best one(s) is easily identified as well. A practical example shows that the proposed method is applicable.","PeriodicalId":369256,"journal":{"name":"Journal of The Chinese Institute of Industrial Engineers","volume":"28 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129237688","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2012-08-24DOI: 10.1080/10170669.2012.715595
Kuo-Wei Su, Jau-Wen Wang, M. Hsu
This study explores the effects of prior experience on determinants of repurchase intention and antecedents of perceived uncertainty in an online shopping environment. The study proposes a model which integrates perceived uncertainty, trust, and technology acceptance model (TAM). Structure Equation Modeling (SEM) is used to find out the difference between low- and high-experienced online shoppers. The results indicate that trust in an e-vendor vis-à-vis the TAM constructs has consistent effects on all experienced online shoppers. However, perceived uncertainty affects only the low-experienced online shoppers’ trust in an e-vendor. The data also shows that the sources of perceived uncertainty, which is classified into relationship uncertainty and environmental uncertainty, are different for the low- and high-experienced online shoppers. Our findings provide the managers of e-vendors with the information about the difference in the online shoppers’ prior experiences.
{"title":"The impact of prior experience on shopping behaviors","authors":"Kuo-Wei Su, Jau-Wen Wang, M. Hsu","doi":"10.1080/10170669.2012.715595","DOIUrl":"https://doi.org/10.1080/10170669.2012.715595","url":null,"abstract":"This study explores the effects of prior experience on determinants of repurchase intention and antecedents of perceived uncertainty in an online shopping environment. The study proposes a model which integrates perceived uncertainty, trust, and technology acceptance model (TAM). Structure Equation Modeling (SEM) is used to find out the difference between low- and high-experienced online shoppers. The results indicate that trust in an e-vendor vis-à-vis the TAM constructs has consistent effects on all experienced online shoppers. However, perceived uncertainty affects only the low-experienced online shoppers’ trust in an e-vendor. The data also shows that the sources of perceived uncertainty, which is classified into relationship uncertainty and environmental uncertainty, are different for the low- and high-experienced online shoppers. Our findings provide the managers of e-vendors with the information about the difference in the online shoppers’ prior experiences.","PeriodicalId":369256,"journal":{"name":"Journal of The Chinese Institute of Industrial Engineers","volume":"71 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132984908","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2012-08-24DOI: 10.1080/10170669.2012.717542
M. Aslam, M. Azam, S. Balamurali, C. Jun
In this article, a new mixed sampling plan based on the group sampling plan and sudden death testing scheme is proposed by assuming that the lifetime of the product follows the Weibull distribution. The optimal parameters of the proposed plan will be determined such that the producer's risk and consumer's risk are satisfied for specified values of acceptable and limiting quality levels. The proposed plan is compared with the existing group acceptance sampling plan and variable single sampling plan based on sudden death testing. The tables are provided and examples are also given to illustrate the proposed plan.
{"title":"A new mixed acceptance sampling plan based on sudden death testing under the Weibull distribution","authors":"M. Aslam, M. Azam, S. Balamurali, C. Jun","doi":"10.1080/10170669.2012.717542","DOIUrl":"https://doi.org/10.1080/10170669.2012.717542","url":null,"abstract":"In this article, a new mixed sampling plan based on the group sampling plan and sudden death testing scheme is proposed by assuming that the lifetime of the product follows the Weibull distribution. The optimal parameters of the proposed plan will be determined such that the producer's risk and consumer's risk are satisfied for specified values of acceptable and limiting quality levels. The proposed plan is compared with the existing group acceptance sampling plan and variable single sampling plan based on sudden death testing. The tables are provided and examples are also given to illustrate the proposed plan.","PeriodicalId":369256,"journal":{"name":"Journal of The Chinese Institute of Industrial Engineers","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125666935","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2012-07-01DOI: 10.1080/10170669.2012.702688
Chuen-Sheng Cheng, Hung-Ting Lee
Out-of-control signals in multivariate charts may be caused by one or few variables or a set of variables. Multivariate process control often encounters with the diagnosis or interpretation difficulty of an out-of-control signal to determine which variable is responsible for the signal. In this article, we formulate the diagnosis of out-of-control signal as a classification problem. The proposed system includes a shift detector and a classifier. The traditional multivariate chart works as a mean shift detector. Once an out-of-control signal is generated, an SVM-based ensemble classifier is used to recognize the variables that have shifted. We propose using subgroup data and extracted features (sample mean and Mahalanobis distance) as the input vectors of classifier. The performance of the proposed system was evaluated by computing its classification accuracy. We use the traditional decomposition method as a benchmark for comparison. The simulation studies indicate that the proposed ensemble classification model is a successful method in identifying the source of the mean change. The results also reveal that SVM using extracted features as input vector has slightly better classification performance than using raw data as input. The proposed method may facilitate the diagnosis of the out-of-control signal.
{"title":"Identifying the out-of-control variables of multivariate control chart using ensemble SVM classifiers","authors":"Chuen-Sheng Cheng, Hung-Ting Lee","doi":"10.1080/10170669.2012.702688","DOIUrl":"https://doi.org/10.1080/10170669.2012.702688","url":null,"abstract":"Out-of-control signals in multivariate charts may be caused by one or few variables or a set of variables. Multivariate process control often encounters with the diagnosis or interpretation difficulty of an out-of-control signal to determine which variable is responsible for the signal. In this article, we formulate the diagnosis of out-of-control signal as a classification problem. The proposed system includes a shift detector and a classifier. The traditional multivariate chart works as a mean shift detector. Once an out-of-control signal is generated, an SVM-based ensemble classifier is used to recognize the variables that have shifted. We propose using subgroup data and extracted features (sample mean and Mahalanobis distance) as the input vectors of classifier. The performance of the proposed system was evaluated by computing its classification accuracy. We use the traditional decomposition method as a benchmark for comparison. The simulation studies indicate that the proposed ensemble classification model is a successful method in identifying the source of the mean change. The results also reveal that SVM using extracted features as input vector has slightly better classification performance than using raw data as input. The proposed method may facilitate the diagnosis of the out-of-control signal.","PeriodicalId":369256,"journal":{"name":"Journal of The Chinese Institute of Industrial Engineers","volume":"500 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123057873","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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