We consider modification of the recourse data, consisting of the second-stage parameters and the underlying distribution, as an approximation technique for solving two-stage recourse problems. This approach is applied to several specific classes of recourse problems; in each case, the resulting recourse problem is much easier to solve. Modification of recourse data is shown to be the common pri...

Inventory space requirements in remanufacturing facilities can vary significantly over time and by type of space needed, due variability in recaptured component quality, availability of refurbished components, remanufactured product demand, and returned product rates. Multi-period stochastic programming recourse models are developed to identify optimal schedules of internal, external, and recon...

Stochastic integer programs are notoriously difficult. Very few properties are known and solution algorithms are very scarce. In this paper, we introduce the class of stochastic programs with simple integer recourse, a natural extension of the simple recourse case extensively studied in stochastic continuous programs. Analytical as well as computational properties of the expected recourse funct...

A good port terminal is not only a major economic multiplier for the nation’s prosperity by being gateway trading, but also an attractor other commercial infrastructure development such as banks, logistics agencies, and manufacturing trading investments. measurement of efficiency duration-of-stay visiting vessels. quick efficient loading/unloading process can increase productivity thus reduce w...

Abstract At the early stage of public health emergencies, when conventional medical reserves prepared are insufficient, and productivity could temporarily not meet surge in demand, donations can be used to cover excess demand for supplies a large extent. This paper explicitly considers allocation problem limited during emergency, incorporating uncertainty donated priorities care centers. The is...