In this paper a basic resource allocation problem with uncertain costs is discussed. The problem consists in choosing exactly p items out of n available to minimize the total cost. The uncertain item costs are specified as a discrete scenario set and the minmax criterion is used to choose a...

In this paper a basic resource allocation problem with uncertain costs is discussed. The problem consists in choosing exactly p items out of n available to minimize the total cost. The uncertain item costs are specified as a discrete scenario set and the minmax criterion is used to choose a...

In this paper a basic resource allocation problem with uncertain costs is discussed. The problem consists in choosing exactly p items out of n available to minimize the total cost. The uncertain item costs are specified as a discrete scenario set and the minmax criterion is used to choose a...

This paper analyses the problem of finding a robust spanning tree. The problem consists of determining a minimum spanning tree of a graph with uncertain edge costs. We should determine a spanning tree that minimizes the difference in costs between the tree selected and the optimal tree. While...

Two methods of reducing the risk of disruptions to distribution systems are (1) strategically locating facilities to mitigate against disruptions and (2) hardening facilities. These two activities have been treated separately in most of the academic literature. This article integrates facility...

In this paper we consider a firm that employs heterogeneous workers to meet demand for its product or service. Workers differ in their skills, speed, and/or quality, and they randomly leave, or turn over. Each period the firm must decide how many workers of each type to hire or fire in order to...

Assigning multiple service facilities to demand points is important when demand points are required to withstand service facility failures. Such failures may result from a multitude of causes, ranging from technical difficulties to natural disasters. The α-neighbor p-center problem deals with...

In this paper we consider a firm that employs heterogeneous workers to meet demand for its product or service. Workers differ in their skills, speed, and/or quality, and they randomly leave, or turn over. Each period the firm must decide how many workers of each type to hire or fire in order to...