Over the past three decades, practitioners and researchers in engineering and operations sciences have focused on disassembly planning as a way to increase profitability of re-manufacturing, recycling and disposal processes for end-of-life products. An important task in disassembly planning is...

Workflow scheduling aims to optimize task allocation and execution in cloud-fog​ computing environments. Finding an optimal algorithm for workflow scheduling poses a significant challenge due to the complexity and variability of tasks and resources involved. Although meta-heuristic algorithms...

We consider both branch-and-cut and column generation approaches for the problem of finding a minimum cost assignment of jobs with release dates and deadlines to unrelated parallel machines. Results are presented for several variants both with and without Constraint Programming. Among the...

In a conventional dial-a-ride-system passengers are moved with the same vehicle between their pickup and their drop-off location. In a dial-a-ride-system with transfer, it is possible (or even standard) that passengers change the vehicle once or several times. Transfer Scheduling Constraints...

In this paper, we address the backlog sequencing problem in a flow-shop controlled by a CONWIP production control system with the objective to minimise the make span. We characterise the problem and analyse its similarities and differences with the permutation flow-shop problem. A comparison of...