نتایج جستجو برای: stochastic initial inventory

تعداد نتایج: 539024  

Journal: :European Journal of Operational Research 2023

In this work we introduce a green inventory routing problem termed the Stochastic Inventory Routing Problem on Electric Roads (S-IRP-ER), in which hybrid vehicle navigates road network with charging opportunities some sections, to cover non-stationary stochastic demand of single product for set retailers network. We model using isochrone graphs represent real an graph nodes are located such tha...

2010
WANG Yi

In this paper we present a quantity-based model for integrated inventory replenishment and shipment consolidation decisions under vendor managed inventory. Assuming the vendor uses a special reorder point, order-up-to level, or ( , ) s S policy for inventory control and adopts a quantity-based dispatching strategy under stochastic settings, we build its simulation model. By simulating in Arena ...

2014
Amanda J. Schmitt Siyuan Anthony Sun Lawrence V. Snyder Zuo-Jun Max Shen

We investigate optimal system design in a multi-location system in which supply is subject to disruptions. We examine the expected costs and cost variances of the system in both a centralized and a decentralized inventory system. We show that, when demand is deterministic and supply may be disrupted, using a decentralized inventory design reduces cost variance through the risk diversification e...

2017
Wei Pan Ying Guo Lei Jin ShuJie Liao

With the high accident rate of civil aviation, medical resource inventory becomes more important for emergency management at the airport. Meanwhile, medical products usually are time-sensitive and short lifetime. Moreover, we find that the optimal medical resource inventory depends on multiple factors such as different risk preferences, the material shelf life and so on. Thus, it becomes very c...

Journal: :European Journal of Operational Research 2023

Inspired by the retail industry, we consider a stochastic inventory routing problem where retailers are replenished from central warehouse using time-based shipment consolidation policy. Such dispatching policy, facing demand repetitively at fixed times, is essential in practice. It allows for easy incorporation with dependent up- and downstream planning problems such as personal staffing opera...

Journal: :Operations Research 2009
Xin Chen Jiawei Zhang

In this paper, we present a unified approach to study a class of cooperative games arising from inventory centralization. The optimization problems corresponding to the inventory games are formulated as stochastic programs. We observe that the strong duality of stochastic linear programming not only directly leads to a series of recent results concerning the non-emptiness of the cores of such g...

M. R. Gholamian Mohammad Feizabadi Reza Rashid Seyed Farzad Hoseini

This paper presents a mathematical model for an inventory control system in which customers’ demands and suppliers’ service time are considered as stochastic parameters. The proposed problem is solved through queuing theory for a single item. In this case, transitional probabilities are calculated in steady state. Afterward, the model is extended to the case of multi-item inventory systems. The...

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