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大规模定制环境下多项目计划过程模型及其应用研究 被引量:2
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作者 单汨源 吴娟 +1 位作者 梁盛 彭丹妮 《科学技术与工程》 2007年第10期2268-2272,共5页
根据大规模定制的分类,对大规模定制环境下的多项目进行了界定,提出了大规模定制环境下横向与纵向多项目集成的概念。同时,在分析其他学者关于生产计划方法研究的基础上,提出了纯定制与特制标准化大规模定制环境下多项目计划安排的过程... 根据大规模定制的分类,对大规模定制环境下的多项目进行了界定,提出了大规模定制环境下横向与纵向多项目集成的概念。同时,在分析其他学者关于生产计划方法研究的基础上,提出了纯定制与特制标准化大规模定制环境下多项目计划安排的过程模型,并对其内容进行了分析。通过阐述其在实际企业中的应用步骤与关键点,并在企业的实际应用发现,这种将大规模定制环境下的订单按阶段进行分解,并根据阶段工作内容的区别进行计划安排的方法,更有利于企业对整个订单完成过程的控制,提高企业大规模定制能力。 展开更多
关键词 大规模定制 多项目计划 过程模型应用
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A dynamic model for railway freight overbooking 被引量:2
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作者 冯芬玲 张佳琪 郭晓峰 《Journal of Central South University》 SCIE EI CAS CSCD 2015年第8期3257-3264,共8页
In order to apply overbooking idea in Chinese railway freight industry to improve revenue, a Markov decision process(dynamic programming) model for railway freight reservation was formulated and the overbooking limit ... In order to apply overbooking idea in Chinese railway freight industry to improve revenue, a Markov decision process(dynamic programming) model for railway freight reservation was formulated and the overbooking limit level was proposed as a control policy. However, computing the dynamic programming treatment needs six nested loops and this will be burdensome for real-world problems. To break through the calculation limit, the properties of value function were analyzed and the overbooking protection level was proposed to reduce the calculating quantity. The simulation experiments show that the overbooking protection level for the lower-fare class is higher than that for the higher-fare class, so the overbooking strategy is nested by fare class. Besides, by analyzing the influence on the overbooking strategy of freight arrival probability and cancellation probability, the proposed approach is efficient and also has a good application prospect in reality. Also, compared with the existing reservation(FCFS), the overbooking strategy performs better in the fields of vacancy reduction and revenue improvement. 展开更多
关键词 revenue management railway freight OVERBOOKING dynamic model
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