Pub Date : 2010-12-23DOI: 10.1109/IEEM.2010.5674570
Y. Park
In this paper, we study the terminal-pair reliability in grid networks. An area switched tactical communication system such as ATN (Army Tactical Network) involve large number of nodes, and of links. The resulting huge number of possible combinations of node and link failures makes it difficult to perform quantitative analysis for system survivability assessments in terms of multi-hop connectivity, under jamming and physical attacks. We suggest an ATN Simulation Model (ATNSM) to overcome this difficulty for enumerating multi-hop routing successes to develop a lower bound on connectivity. The analysis techniques were exercised on an example ATN area coverage network model with 7×5 grid nodes under stress conditions.
{"title":"Study of the terminal-pair reliability in grid networks","authors":"Y. Park","doi":"10.1109/IEEM.2010.5674570","DOIUrl":"https://doi.org/10.1109/IEEM.2010.5674570","url":null,"abstract":"In this paper, we study the terminal-pair reliability in grid networks. An area switched tactical communication system such as ATN (Army Tactical Network) involve large number of nodes, and of links. The resulting huge number of possible combinations of node and link failures makes it difficult to perform quantitative analysis for system survivability assessments in terms of multi-hop connectivity, under jamming and physical attacks. We suggest an ATN Simulation Model (ATNSM) to overcome this difficulty for enumerating multi-hop routing successes to develop a lower bound on connectivity. The analysis techniques were exercised on an example ATN area coverage network model with 7×5 grid nodes under stress conditions.","PeriodicalId":285694,"journal":{"name":"2010 IEEE International Conference on Industrial Engineering and Engineering Management","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133972644","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 : 2010-12-23DOI: 10.1109/IEEM.2010.5674527
B. Bao, Suxiu Xu, Q. Lu
There have already been a number of managerial and engineering articles that focus on modularity, but none on the issues that the optimal modularity level of complex systems poses in terms of real options and coordination theory. To fill this gap, we develop a modularity profit model based on real options and coordination theory to examine the trade-off between modularity values and costs especially coordination costs. Two key findings are that: (1) In an expensive test and integration environment, it's optimal for an organization to divide a system into fewer modules and run fewer experiments on each, and further reduce the number of independent parallel design when unit coordination cost is high; (2) In a sophisticated test and integration environment, the optimal splitting policy depends on coordination factors such as ex-ante coordination effectiveness and bug-fixing cost, but the optimal substitution policy only depends on unit design cost.
{"title":"Optimal modular design policy for complex systems in considering coordination costs","authors":"B. Bao, Suxiu Xu, Q. Lu","doi":"10.1109/IEEM.2010.5674527","DOIUrl":"https://doi.org/10.1109/IEEM.2010.5674527","url":null,"abstract":"There have already been a number of managerial and engineering articles that focus on modularity, but none on the issues that the optimal modularity level of complex systems poses in terms of real options and coordination theory. To fill this gap, we develop a modularity profit model based on real options and coordination theory to examine the trade-off between modularity values and costs especially coordination costs. Two key findings are that: (1) In an expensive test and integration environment, it's optimal for an organization to divide a system into fewer modules and run fewer experiments on each, and further reduce the number of independent parallel design when unit coordination cost is high; (2) In a sophisticated test and integration environment, the optimal splitting policy depends on coordination factors such as ex-ante coordination effectiveness and bug-fixing cost, but the optimal substitution policy only depends on unit design cost.","PeriodicalId":285694,"journal":{"name":"2010 IEEE International Conference on Industrial Engineering and Engineering Management","volume":"204 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132136884","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 : 2010-12-23DOI: 10.1109/IEEM.2010.5674519
M. D. Yang, T. Su, N. Pan, P. Liu
Following the construction completion of the new infrastructures of sewerage, sewerage rehabilitation planning is the major work. This paper presents a systematic sewerage rehabilitation planning consisting of sewer inspection, diagnosis of pipe defects, grading of sewerage structural conditions, and determination of cost-effectiveness rehabilitation methods and substitution pipe materials. The main purpose of sewer inspection is to acquire closed circuit TV (CCTV) images for diagnosis of pipe defects. For diagnosis of pipe defects, a computer aided approach rather than the tradition manual interpretation is presented, and the overall diagnosis accuracies of above 90% are obtained. Also, genetic algorithm (GA) is used to design an optimization model to find out the multi-optimal sewer rehabilitation approaches. Finally, a set of optimal sewerage rehabilitation plans is searched.
{"title":"Sewerage rehabilitation planning","authors":"M. D. Yang, T. Su, N. Pan, P. Liu","doi":"10.1109/IEEM.2010.5674519","DOIUrl":"https://doi.org/10.1109/IEEM.2010.5674519","url":null,"abstract":"Following the construction completion of the new infrastructures of sewerage, sewerage rehabilitation planning is the major work. This paper presents a systematic sewerage rehabilitation planning consisting of sewer inspection, diagnosis of pipe defects, grading of sewerage structural conditions, and determination of cost-effectiveness rehabilitation methods and substitution pipe materials. The main purpose of sewer inspection is to acquire closed circuit TV (CCTV) images for diagnosis of pipe defects. For diagnosis of pipe defects, a computer aided approach rather than the tradition manual interpretation is presented, and the overall diagnosis accuracies of above 90% are obtained. Also, genetic algorithm (GA) is used to design an optimization model to find out the multi-optimal sewer rehabilitation approaches. Finally, a set of optimal sewerage rehabilitation plans is searched.","PeriodicalId":285694,"journal":{"name":"2010 IEEE International Conference on Industrial Engineering and Engineering Management","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134314703","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 : 2010-12-23DOI: 10.1109/IEEM.2010.5674420
Songlin Chen, Youbang Zhang, Xiaojin Zhang, J. Jiao
The mixed logit (ML) discrete choice model is highly flexible and capable of modeling complex choice behaviors. A popular method for estimation of an ML model is through maximization of a simulated likelihood function, which, however, often contains multiple local optima in a high-dimensional solution space. This paper reports the development of a dynamic differential evolution (DE) algorithm for the estimation of a general ML model with correlated tastes and repeated choices. Compared with the gradient based algorithms that are commonly adopted in literature, the proposed DE algorithm is less sensitive to the properties of the distributions assumed and the conditions of initialization, and it is more robust in converging to near optimal solutions.
{"title":"A dynamic differential evolution algorithm for mixed logit discrete choice model estimation","authors":"Songlin Chen, Youbang Zhang, Xiaojin Zhang, J. Jiao","doi":"10.1109/IEEM.2010.5674420","DOIUrl":"https://doi.org/10.1109/IEEM.2010.5674420","url":null,"abstract":"The mixed logit (ML) discrete choice model is highly flexible and capable of modeling complex choice behaviors. A popular method for estimation of an ML model is through maximization of a simulated likelihood function, which, however, often contains multiple local optima in a high-dimensional solution space. This paper reports the development of a dynamic differential evolution (DE) algorithm for the estimation of a general ML model with correlated tastes and repeated choices. Compared with the gradient based algorithms that are commonly adopted in literature, the proposed DE algorithm is less sensitive to the properties of the distributions assumed and the conditions of initialization, and it is more robust in converging to near optimal solutions.","PeriodicalId":285694,"journal":{"name":"2010 IEEE International Conference on Industrial Engineering and Engineering Management","volume":"91 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134408726","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 : 2010-12-23DOI: 10.1109/IEEM.2010.5674292
MuhammadYasir Khan, F. Malik, K. Munawar
Backlash nonlinearity is caused by the gap in the mechanical transmission link, and it poses a problem whenever there is a speed and position mismatch between the driving and driven side. In this paper, switched hybrid approach has been adopted to model and control the systems with backlash nonlinearity. A switched hybrid system consists of multiple subsystems with a particular subsystem active at a time, as dictated by a switching function. A multiple model adaptive control scheme with fixed models has been suggested for speed control of load for two mass system connected through a mechanical transmission link, taking into account the backlash in the system. The control strategy does not require a priori knowledge of size of backlash gap. The robustness of the suggested technique has also been simulated in the presence of disturbance torque and uncertain backlash size.
{"title":"Switched hybrid speed control of elastic systems with backlash","authors":"MuhammadYasir Khan, F. Malik, K. Munawar","doi":"10.1109/IEEM.2010.5674292","DOIUrl":"https://doi.org/10.1109/IEEM.2010.5674292","url":null,"abstract":"Backlash nonlinearity is caused by the gap in the mechanical transmission link, and it poses a problem whenever there is a speed and position mismatch between the driving and driven side. In this paper, switched hybrid approach has been adopted to model and control the systems with backlash nonlinearity. A switched hybrid system consists of multiple subsystems with a particular subsystem active at a time, as dictated by a switching function. A multiple model adaptive control scheme with fixed models has been suggested for speed control of load for two mass system connected through a mechanical transmission link, taking into account the backlash in the system. The control strategy does not require a priori knowledge of size of backlash gap. The robustness of the suggested technique has also been simulated in the presence of disturbance torque and uncertain backlash size.","PeriodicalId":285694,"journal":{"name":"2010 IEEE International Conference on Industrial Engineering and Engineering Management","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133798474","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 : 2010-12-23DOI: 10.1109/IEEM.2010.5674151
Jeong-eun Lee, Kyong-gu Rhee, Hee-Hyol Lee
The reverse logistics is the process flow of used-products that are collected to be reproduced so that they can be sold again to customers after some processing. Within this perspective, we formulated a mathematical model of the reuse system as a reverse logistics with two objectives functions: one is minimizing cost of reverse logistics network problem, (i.e. transportation cost, disposal cost, purchase cost and inventory holding cost) another is just-in-time delivery, and minimizes the costs of backorders and inventories in manufacturer in all periods. This paper proposes a new multiobjective hybrid genetic algorithm approach, and shows how the performance of multiobjective genetic algorithm can be improved by hybridization with Fuzzy Logic Control (FLC). In the experimental results comparing CPLEX, pri-awGA (priority-based adaptive weight Genetic Algorithm) and mo-hGA (multiobjective Hybrid Genetic Algorithm), we demonstrated the effectiveness of mo-hGA such as shortness of computational time and better solutions.
{"title":"Multiobjective Hybrid Genetic Algorithm for reverse logistics network design of inventory systems with backordering","authors":"Jeong-eun Lee, Kyong-gu Rhee, Hee-Hyol Lee","doi":"10.1109/IEEM.2010.5674151","DOIUrl":"https://doi.org/10.1109/IEEM.2010.5674151","url":null,"abstract":"The reverse logistics is the process flow of used-products that are collected to be reproduced so that they can be sold again to customers after some processing. Within this perspective, we formulated a mathematical model of the reuse system as a reverse logistics with two objectives functions: one is minimizing cost of reverse logistics network problem, (i.e. transportation cost, disposal cost, purchase cost and inventory holding cost) another is just-in-time delivery, and minimizes the costs of backorders and inventories in manufacturer in all periods. This paper proposes a new multiobjective hybrid genetic algorithm approach, and shows how the performance of multiobjective genetic algorithm can be improved by hybridization with Fuzzy Logic Control (FLC). In the experimental results comparing CPLEX, pri-awGA (priority-based adaptive weight Genetic Algorithm) and mo-hGA (multiobjective Hybrid Genetic Algorithm), we demonstrated the effectiveness of mo-hGA such as shortness of computational time and better solutions.","PeriodicalId":285694,"journal":{"name":"2010 IEEE International Conference on Industrial Engineering and Engineering Management","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122177778","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 : 2010-12-23DOI: 10.1109/IEEM.2010.5674396
Guozheng He, Jianan Yu
Enterprises should let Lead Users participate in new product development. But in practice, it's very difficult for enterprises to identify lead users from a large amount of common consumers. Since lead users have stronger competencies than common users, customer competence can be used as a dimension to measure lead users. Based on this, a model of identifying lead users by computing their competencies is built. By dividing customer competences into several indicators, a weighted competence value can be computed. The users with the highest competence value can be considered as lead users. This model can help enterprises identify lead users more easily in practice.
{"title":"Identify Lead Users by customer competence","authors":"Guozheng He, Jianan Yu","doi":"10.1109/IEEM.2010.5674396","DOIUrl":"https://doi.org/10.1109/IEEM.2010.5674396","url":null,"abstract":"Enterprises should let Lead Users participate in new product development. But in practice, it's very difficult for enterprises to identify lead users from a large amount of common consumers. Since lead users have stronger competencies than common users, customer competence can be used as a dimension to measure lead users. Based on this, a model of identifying lead users by computing their competencies is built. By dividing customer competences into several indicators, a weighted competence value can be computed. The users with the highest competence value can be considered as lead users. This model can help enterprises identify lead users more easily in practice.","PeriodicalId":285694,"journal":{"name":"2010 IEEE International Conference on Industrial Engineering and Engineering Management","volume":"5072 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125610826","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 : 2010-12-23DOI: 10.1109/IEEM.2010.5674504
L. Chen
This study examined how transformational leadership styles affect innovative culture, and consequently affect the implementation of knowledge-based customer relationship management in the Taiwanese hotel industry. A model of these relationships was created based on earlier research and used Bass and Avolio's Multi-Factor Leadership Questionnaire, a 12-item scale for assessing innovative culture along with questions to assess a multi-dimensional construct for CRM. The model was tested and modified using structural equation modeling. The results generally support a positive relationship between transformational leadership styles, innovative culture and the implementation of KCRM. In particularly, the mediated role of organizational innovative culture was found between transformational leadership styles and the implementation of KCRM. Suggestions for future research are also included.
{"title":"Examining the mediating effect of innovative culture in the relationship between leadership and knowledge-based customer relationship implementation","authors":"L. Chen","doi":"10.1109/IEEM.2010.5674504","DOIUrl":"https://doi.org/10.1109/IEEM.2010.5674504","url":null,"abstract":"This study examined how transformational leadership styles affect innovative culture, and consequently affect the implementation of knowledge-based customer relationship management in the Taiwanese hotel industry. A model of these relationships was created based on earlier research and used Bass and Avolio's Multi-Factor Leadership Questionnaire, a 12-item scale for assessing innovative culture along with questions to assess a multi-dimensional construct for CRM. The model was tested and modified using structural equation modeling. The results generally support a positive relationship between transformational leadership styles, innovative culture and the implementation of KCRM. In particularly, the mediated role of organizational innovative culture was found between transformational leadership styles and the implementation of KCRM. Suggestions for future research are also included.","PeriodicalId":285694,"journal":{"name":"2010 IEEE International Conference on Industrial Engineering and Engineering Management","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125097572","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 : 2010-12-23DOI: 10.1109/IEEM.2010.5674524
Chu-Ti Lin, Kai Tang, Jun-Ru Chang, Chin-Yu Huang
Many software reliability growth models (SRGMs) based on non-homogeneous Poisson process (NHPP) framework have been proposed for estimating the reliability growth of products. However, some concerns regarding the properties of NHPP framework were exposed and discussed while the NHPP models have received considerable attention. Two main concerns are (I) the variance of an NHPP-based model grows as software testing proceeds, which was considered an unreasonable NHPP property for describing software failure behavior; and (II) the numbers of failures observed in disjoint time intervals are independent, which may fails in the early stage of software testing. With regard to Concern (I), we will justify the validity of NHPP framework through a mathematical perspective, i.e. the process of parameter estimation for NHPP models. Considering Concern (II), we will explain why NHPP SRGMs are still workable from the applicable perspectives. As a result, we believe the NHPP framework may still have merit.
{"title":"An investigation into whether the NHPP framework is suitable for software reliability prediction and estimation","authors":"Chu-Ti Lin, Kai Tang, Jun-Ru Chang, Chin-Yu Huang","doi":"10.1109/IEEM.2010.5674524","DOIUrl":"https://doi.org/10.1109/IEEM.2010.5674524","url":null,"abstract":"Many software reliability growth models (SRGMs) based on non-homogeneous Poisson process (NHPP) framework have been proposed for estimating the reliability growth of products. However, some concerns regarding the properties of NHPP framework were exposed and discussed while the NHPP models have received considerable attention. Two main concerns are (I) the variance of an NHPP-based model grows as software testing proceeds, which was considered an unreasonable NHPP property for describing software failure behavior; and (II) the numbers of failures observed in disjoint time intervals are independent, which may fails in the early stage of software testing. With regard to Concern (I), we will justify the validity of NHPP framework through a mathematical perspective, i.e. the process of parameter estimation for NHPP models. Considering Concern (II), we will explain why NHPP SRGMs are still workable from the applicable perspectives. As a result, we believe the NHPP framework may still have merit.","PeriodicalId":285694,"journal":{"name":"2010 IEEE International Conference on Industrial Engineering and Engineering Management","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125138698","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 : 2010-12-23DOI: 10.1109/IEEM.2010.5674368
X. Dong, Z. Z. Li
This study examined the effects of human redundancy arrangements on performance in the execution of computerized emergency operating procedures. It was found that there was significant difference in completion time but no significant differences in error rate or subjective workload between single-operator and two-operator setups. For the two-operator setup, an unbalanced workload was found. Team completion time was significantly lower than the higher and averaged completion times of individual operators, but was not significantly different from the lower completion time of individual operators. The higher error rate of individual operators was significantly higher than the team error rate, but there were no significant differences between the team error rate and the lower and averaged error rates of individual operators. These findings indicate the complex nature of human redundancy when using digital systems.
{"title":"A study on human redundancy in execution of computerized emergency operating procedures","authors":"X. Dong, Z. Z. Li","doi":"10.1109/IEEM.2010.5674368","DOIUrl":"https://doi.org/10.1109/IEEM.2010.5674368","url":null,"abstract":"This study examined the effects of human redundancy arrangements on performance in the execution of computerized emergency operating procedures. It was found that there was significant difference in completion time but no significant differences in error rate or subjective workload between single-operator and two-operator setups. For the two-operator setup, an unbalanced workload was found. Team completion time was significantly lower than the higher and averaged completion times of individual operators, but was not significantly different from the lower completion time of individual operators. The higher error rate of individual operators was significantly higher than the team error rate, but there were no significant differences between the team error rate and the lower and averaged error rates of individual operators. These findings indicate the complex nature of human redundancy when using digital systems.","PeriodicalId":285694,"journal":{"name":"2010 IEEE International Conference on Industrial Engineering and Engineering Management","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125359636","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：