In this paper, we consider a lot-sizing problem with the remanufacturing option under parameter uncertainties imposed on demands and returns. Remanufacturing has recently been fast growing area of interest for many researchers due to increasing awareness reducing waste in production environments, particular studies involving simultaneously are very scarce literature. We first present min-max de...

In the integrated uncapacitated lot sizing and bin packing problem, we have to couple decisions of replenishment from single product suppliers with in delivery client orders. A order is composed quantities each product, such an must be delivered all together no later than a given period. The packed same bin, may advance if it advantageous terms costs. We assume large enough set homogeneous bins...

An experimental and analytical investigation of sampling, which focused on the sizing of population for optimum performance, was performed using the OneMax problem. A fixed-size population and population sizes that vary according to the number of samples were considered in this study. For the case of varying population sizes, population sizing models that ensure proper decision making of the GA...