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A new model for optimising simultaneously projects selection and resource-constrained project scheduling problem

机译：同时优化项目选择和资源受限项目调度问题的新模型

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The problem of project selection and scheduling is in combination with a few maximum amount of resource constraints and the net present values of the project modelling, analysis and solving. In this study, it is found that the number of available project should be given. Decision makers should consider a subset of these projects, regarding to time and resources limitations. A majority of project selection models do not consider process scheduling too. However, except for the cases in which only one project is active at a certain time during the project, it is not optimal to prioritise the selected projects regardless of their timing. The complexity of scheduling the activities of the selected portfolio of projects is more than the selection itself. Nevertheless, the study investigates all the aspects of both selection and scheduling at the same time in order to build up a comprehensive model.
机译：项目选择和进度安排的问题与最大数量的资源约束以及项目建模，分析和解决方案的净现值结合在一起。在这项研究中，发现应该给出可用项目的数量。决策者应在时间和资源限制方面考虑这些项目的子集。大多数项目选择模型也不考虑流程调度。但是，除了在项目期间的某个时间只有一个项目处于活动状态的情况之外，对选定项目进行优先级排序（无论其时间安排）不是最佳选择。安排所选项目组合的活动的复杂性比所选项目本身更为复杂。尽管如此，该研究同时研究了选择和调度的所有方面，以建立一个综合模型。

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