Combined Location Models

组合位置模型

• 批准号: RGPIN-2017-06530
• 负责人: Berman, Oded
• 金额: $ 3.72万
• 依托单位: University of Toronto
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2019
• 资助国家: 加拿大
• 起止时间: 2019-01-01 至 2020-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=690242
• 关键词: Combined; Location; Models

This proposal is a continuation of my former proposal funded by NSERC. As will be shown in the proposal I have made considerable progress over the last 5 years.***Early location models assumed that facilities can serve all customers without delay, that they never fail and that decisions on inventory and marketing can be made separately. Four major areas of combined location models that relax these assumptions are proposed.***Reliability-Location Models: This research seeks to gain a better understanding of how disruptions affect optimal location decisions. I suggest 6 directions to achieve it. Since in most applications, customers' demand is distributed continuously while most research assumes discrete demand, a main focus of the proposed research is on location problems with continuous demand. The work will assist managers in making better decisions on budget allocation, on constructing new facilities, on improving reliability of existing facilities and on improving the information system. ***Marketing-Location Models: Our proposed research belongs to the intersection of facility location models and marketing diffusion models. The earlier research typically ignores the marketing support that the product receives and the temporal effects like word-of-mouth while the latter tends to ignore where the product should be available and the effect of travel distances on the demand. The main goal is to understand better the dynamics of the system and to develop new models and extend existing ones in order to show the implications of combining marketing diffusion models and location decisions. I suggest 4 directions of research. ***Queuing-Location Models: In the class of models we focus on, customers generate a stochastic stream of demands, servers have limited capacity, service times are stochastic and therefore customers arriving at the facilities must wait sometimes or leave the facility. The goal is to design a system where the main decisions are: number of facilities, their locations, their service capacities and the assignment of customers to facilities. I suggest 7 directions of research that aim at helping service managers improve system quality. ***Inventory-Location Models: Traditionally optimal management of supply chain problems and location problems were studied separately. As this usually may lead to inefficiencies and high costs, we plan to consider them jointly. The main decisions include finding the number of facilities (suppliers, retailers and distribution centers (DCs)), their locations and the amount of inventory to order. I propose 5 directions of research that aim at gaining a better understanding of joint inventory and location decisions. We also anticipate contribution to the methodologies of both areas separately.***We note that some of the issues considered in this proposal such as reducing waiting times (e.g., in healthcare) and locating reliable facilities are important in Canada. **

该提议是我以前由NSERC资助的我以前的提案的延续。正如提案中所示，在过去的5年中，我取得了长足的进步。***早期位置模型假设设施可以毫不拖延地为所有客户提供服务，他们永远不会失败，并且可以单独做出关于库存和营销的决定。提出了放宽这些假设的合并位置模型的四个主要领域。***可靠性地点模型：本研究旨在更好地了解中断如何影响最佳位置决策。我建议实现6个方向。由于在大多数应用程序中，客户的需求是连续分配的，而大多数研究都会呈离散需求，因此拟议的研究的主要重点是持续需求的位置问题。这项工作将帮助管理人员在预算分配，构建新设施，提高现有设施的可靠性以及改善信息系统方面做出更好的决策。 ***营销地点模型：我们提出的研究属于设施位置模型与营销扩散模型的交集。较早的研究通常忽略了产品所收到的营销支持以及诸如口碑的时间效应，而后者往往会忽略应该在何处可用的产品以及旅行距离对需求的影响。主要目标是更好地了解系统的动态，并开发新模型并扩展现有模型，以表明结合营销扩散模型和位置决策的含义。我建议4个研究方向。 ***排队座位模型：在我们关注的模型类别中，客户会产生随机需求流，服务器的容量有限，服务时间是随机的，因此到达设施的客户有时必须等待或离开设施。目的是设计一个主要决策的系统：设施数量，其位置，服务能力和客户分配到设施。我建议7个研究方向，旨在帮助服务经理提高系统质量。 ***库存安置模型：分别研究了供应链问题和位置问题的最佳管理。由于这通常可能导致效率低下和高昂的成本，因此我们计划共同考虑它们。主要决定包括查找设施数量（供应商，零售商和分销中心（DCS）），其位置以及要订购的库存数量。我提出了5个研究方向，旨在更好地了解联合库存和位置决策。我们还预计将对这两个领域的方法论做出贡献。 **