A method for assessing model result uncertainty is presented and applied to a case where a paper mill wastewater is discharged into an estuary in the Southeastern U.S.. Model result uncertainty was quantified by incorporating the uncertainty analysis into model calibration. The two-dimensional, laterally averaged model CE-QUAL-W2 was used to predict water quality conditions. The water quality m...

Motivated by the challenges encountered in sawmill production planning, we study a multi-product, multi-period production planning problem with uncertainty in the quality of raw materials and consequently in processes yields, as well as uncertainty in products demands. As demand and yield own different uncertain natures, they are modeled separately and then integrated. Demand uncertainty is con...

In this paper, we propose a structural framework to study multi-channel demand. Our model explains a comprehensive set of demand outcomes as a function of prices and retail store proximity, including the frequency with which consumers shop, how much they spend per purchase occasion, whether they buy from the online (web) or retail channel, and how they allocate expenditures among multiple produ...

Multi-supplier inventory systems with seasonal demand are investigated via queuing theory methods in the framework of cost approach. Optimal distribution of replenishment orders between suppliers is obtained under assumption of make-to-order strategy. To this end asymptotic analysis of systems behavior is performed. We apply various mathematical tools such as weak convergence and use properties...

In many technical issues, the processes of interest could be precisely modelled if only all the relevant information were available. On the other hand, detailed modelling is frequently not feasible due to the cost of acquiring appropriate data. The paper discusses the way self-organising maps and multilayer perceptrons can be used to develop two-stage algorithm for autonomous construction of pr...

The competing mechanisms literature is extended to a market setting in which firms have fixed capacity, and there is a continuum of consumers who desire multiple units and can only purchase from one firm. Firms choose incentive compatible mechanisms in which consumers report their utility types; consumption of the good and payments of the numeraire are continuous functions of the reports. Unifo...

Available online 10 January 2012