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題名 Modeling Security-Check Queues
作者 陸行
Luh,Hsing Paul
Zhang,Zhe George
Wang,Chia-Hung
貢獻者 應數系
關鍵詞 security inspection level ; service capacity ; two-stage queue ; renewal process approximation ; Coxian distribution ; quasi-birth-and-death process
日期 2011.11
上傳時間 5-八月-2014 16:31:16 (UTC+8)
摘要 Motivated by the waiting lines between the U.S.–Canadian border crossings, we investigate a security-check system with both security and customer service goals. In such a system, every customer has to be inspected by the first-stage inspector, but only a proportion of customers need to go through the second stage for further inspection. This “further inspection proportion,” affecting both security screening and the system congestion, becomes a key decision variable for the security-check system. Using a stylized two-stage queueing model, we established the convexity of the expected waiting cost function. With such a property, the optimal further inspection proportion can be determined to achieve the balance of the two goals and the service capacities can be classified into “security-favorable,” “security-unfavorable,” or “security-infeasible” categories. A specific capacity category implies if the security and customer service goals are consistent or in conflict. In addition, we have verified that the properties discovered in the stylized model also hold approximately in a more general multiserver setting. Numerical results are presented to demonstrate the accuracy and robustness of the approximations and the practical value of the model.
關聯 Management Science,57(11),1979-1995
資料類型 article
DOI http://dx.doi.org/10.1287/mnsc.1110.1399
dc.contributor 應數系en_US
dc.creator (作者) 陸行zh_TW
dc.creator (作者) Luh,Hsing Paulen_US
dc.creator (作者) Zhang,Zhe Georgeen_US
dc.creator (作者) Wang,Chia-Hungen_US
dc.date (日期) 2011.11en_US
dc.date.accessioned 5-八月-2014 16:31:16 (UTC+8)-
dc.date.available 5-八月-2014 16:31:16 (UTC+8)-
dc.date.issued (上傳時間) 5-八月-2014 16:31:16 (UTC+8)-
dc.identifier.uri (URI) http://nccur.lib.nccu.edu.tw/handle/140.119/68178-
dc.description.abstract (摘要) Motivated by the waiting lines between the U.S.–Canadian border crossings, we investigate a security-check system with both security and customer service goals. In such a system, every customer has to be inspected by the first-stage inspector, but only a proportion of customers need to go through the second stage for further inspection. This “further inspection proportion,” affecting both security screening and the system congestion, becomes a key decision variable for the security-check system. Using a stylized two-stage queueing model, we established the convexity of the expected waiting cost function. With such a property, the optimal further inspection proportion can be determined to achieve the balance of the two goals and the service capacities can be classified into “security-favorable,” “security-unfavorable,” or “security-infeasible” categories. A specific capacity category implies if the security and customer service goals are consistent or in conflict. In addition, we have verified that the properties discovered in the stylized model also hold approximately in a more general multiserver setting. Numerical results are presented to demonstrate the accuracy and robustness of the approximations and the practical value of the model.en_US
dc.format.extent 124 bytes-
dc.format.mimetype text/html-
dc.language.iso en_US-
dc.relation (關聯) Management Science,57(11),1979-1995en_US
dc.subject (關鍵詞) security inspection level ; service capacity ; two-stage queue ; renewal process approximation ; Coxian distribution ; quasi-birth-and-death processen_US
dc.title (題名) Modeling Security-Check Queuesen_US
dc.type (資料類型) articleen
dc.identifier.doi (DOI) 10.1287/mnsc.1110.1399en_US
dc.doi.uri (DOI) http://dx.doi.org/10.1287/mnsc.1110.1399en_US