论文标题
通过分销物流问题的能力控制利润最大化
Profit maximization via capacity control for distribution logistics problems
论文作者
论文摘要
我们考虑了分销物流方案,运输运营商管理有限的资源,收到一系列收集请求,该请求是由一组客户沿预订时间享用的一组客户发行的,这些请求是指未来的运营期。然后,运输运营商必须决定在发出时接受或拒绝每个传入请求,以征收收入,但也考虑了资源消费。在这种情况下,决策过程是基于动态地找到接受请求的立即返回与保持能力的便利性之间可能利用更有价值的未来请求之间的最佳权衡。我们给出了旨在最大化运营商收入的问题的动态表述,还为运营分配成本进行了核算。由于“维度的诅咒”,动态程序无法最佳解决。因此,我们提出了一个混合整数线性编程近似,其确切或近似的解决方案提供了相关信息,以在实时决策中应用一些普遍的收入管理政策。我们采用电容的车辆路由问题作为基础分配应用,我们分析了一组学术测试问题所提出的技术的计算行为。
We consider a distribution logistics scenario where a shipping operator, managing a limited amount of resources, receives a stream of collection requests, issued by a set of customers along a booking time-horizon, that are referred to a future operational period. The shipping operator must then decide about accepting or rejecting each incoming request at the time it is issued, accounting for revenues, but also considering resource consumptions. In this context, the decision process is based on dynamically finding the best trade-off between the immediate return of accepting the request and the convenience of preserving capacity to possibly exploit more valuable future requests. We give a dynamic formulation of the problem aimed at maximizing the operator revenues, accounting also for the operational distribution costs. Due to the "curse of dimensionality", the dynamic program cannot be solved optimally. For this reason, we propose a mixed-integer linear programming approximation, whose exact or approximate solutions provide the relevant information to apply some commonplace revenue management policies in the real-time decision-making. Adopting a capacitated vehicle routing problem as an underlying distribution application, we analyze the computational behaviour of the proposed techniques on a set of academic test problems.