Single-machine scheduling with learning and forgetting effects

Scheduling with learning effects has been widely studied in the past decade. With the increasingly moving toward shorter product cycle times in many production lines, workers in this changeable environment must constantly learn new skill and technology. As a result, the forgetting effect might occur in these situations. In this paper, we propose a model with the consideraiion of both the learning and forgetting effects. We show some single-machine problems remain polynomially solvable under the proposed model. (C) 2012 Elsevier Inc. All rights reserved.