This paper considers a two-echelon distribution system which consists of a single warehouse serving N (possibly non-identical) retailers that face discrete stochastic demand of the customers. The warehouse orders from an exogenous supplier with ample stock. Orders arrive at the warehouse after a fixed leadtime. The warehouse satisfies, if possible, the replenishment requests from the retailers....

<p style='text-indent:20px;'>A newsboy problem is a typical stochastic inventory management and has extensive applications in the fields of operational research, sciences marketing sciences. One challenges underlying such problems to handle uncertainty demands. In existing results, it often assume that demand distribution given facilitate solution problems. this paper, novel data-driven r...

In this paper, a newsboy model is developed under uniformly distributed lead-time and demand that is an appropriate assumption in obtaining optimal relief inventory of humanitarian disasters. It is noteworthy that limited historical data are in hand on relief operations. Hence, analytical and approximate solutions for optimal relief order quan­tity were derived. The effect of lead-time uncertai...

We propose an adaptive news video retrieval approach which is based on the Ostensive Model of developing information needs. We therefore introduce a news video retrieval system called NewsBoy which captures the users’ implicit interactions with its graphical interface, extracts terms from visited video documents and stores them in user profiles. The terms are weighted based on the type of impli...

In recent years, the rise of farmer-supermarket direct purchase is one of the innovative modes in agricultural supply chain operations, study its operation is very important for improving the operational efficiency of the agricultural supply chain. This paper based on the newsboy model and centralized decision-making model, established agricultural supply chain coordination model with option co...

In this paper we analyse the e ect of a cuto transaction size in a simple newsboy setting. It is assumed that customers with an order larger than a prespeci ed size are satis ed in an alternative way, against additional cost. For compound Poisson demand with discrete order sizes, we show how to determine the average cost and an optimal cuto transaction size. Because the computational e ort to c...

The single-period problem (SPP), also known as the newsboy or newsvendor problem, is to "nd the order quantity which maximizes the expected pro"t in a single-period probabilistic demand framework. Previous extensions to the SPP include, in separate models, the simultaneous determination of the optimal price and quantity when demand is price-dependent, and the determination of the optimal order ...

Keqi Yan: Fluid Models for Production-Inventory Systems (Under the direction of Professor Vidyadhar G. Kulkarni) We consider a single stage production-inventory system whose production and demand rates are modulated by a finite state Markov chain called the environment. Supplementary orders can be placed from external suppliers when needed. We model this system by a fluid-flow system and derive...