A crucial question in the design of ecient logistics systems is the identi®cation of locations for distribution centers (DCs). However, the optimization of these location decisions requires careful attention to the inherent trade-o€s among facility costs, inventory costs, transportation costs, and customer responsiveness. This paper presents a modeling approach that provides such an integrated...

Twitter has attracted billions of users for life logging and sharing activities and opinions. In their tweets, users often reveal their location information and short term visiting histories or plans. Capturing user’s short term activities could benefit many applications for providing the right context at the right time and location. In this paper, we are interested in extracting locations ment...

We consider important generalizations of a wide class of traditional deterministic inventory and facility location models that we call inventory/facility location models with market selection. Instead of the traditional setting, we are given a set of markets, each specified by a sequence of demands and associated with a revenue. Decisions are made in two stages. We first make a decision of what...

In this paper, we investigate retailer’s procurement policy of a perishable item that has stock-dependent demand rate. Stock-dependent demand rate implicitly implies that all items in inventory are displayed for sale. In this case, the retailer tends to display sales items such a way that FIFO policy can be enforced, while prudent customers search for freshest items, which results in LIFO polic...

Inventory theory provides methods for managing and controlling inventories under different constraints and environments. We consider a class of production/inventory control problems that has a single product and a single stocking location, when a stochastic demand with a known non-stationary probability distribution is given. A control policy for this type of inventory system is the one where t...

on time supply of materials in construction projects is very important. therefore, coordinating a project with key suppliers, while ensuring the timely supply of materials, make the minimum costs of project. one way to create this coordination is integrated inventory planning which has been accomplished in this study. it is necessary to mention that such a model is considered np_hard in terms o...

inventory models play an important role in determining the optimal ordering and pricing policies. much work has been reported in literature regarding inventory models with finite or infinite replenishment. but in many practical situations the replenishment is governed by random factors like procurement, transportation, environmental condition, availability of raw material etc., hence, it is nee...

Inventory record inaccuracy deteriorates supply chain performance because it leads to ineffective replenishment decisions. Conducting cycle counts (i.e., periodic inventory auditing) is a common approach to correct inventory records. It is not clear, however, how inaccuracy at different locations affects supply chain performance and how an effective cycle-count program for a multi-stage supply ...