Lazy bureaucrat scheduling is a new class of scheduling problems that was introduced in 1]. In this class of scheduling problems, there is one employee (or more) who should perform the assigned jobs; the objective of the employee is to minimize the amount of work he does and be as ineecient as possible (he is \Lazy"). He is subject to a constraint that he should be busy when there is work to be...

BACKGROUND While past research on health care workers has found that shift work can lead to negative physiological and psychological consequences, few studies have assessed the extent to which it increases the risk of specific work-related injuries, nor quantified and compared associated types, severity and costs. AIMS This study aimed to derive and compare the rates, typologies, costs and di...

This paper investigates the integration of the employee timetabling and production scheduling problems. At the first level, we manage a classical employee timetabling problem. At the second level, we aim at supplying a feasible production schedule for a set of interruptible tasks with qualification requirements and time-windows. Instead of hierarchically solving these two problems as in the cur...

BACKGROUND Medical resident scheduling is difficult due to multiple rules, competing educational goals, and ever-evolving graduate medical education requirements. Despite this, schedules are typically created manually, consuming hours of work, producing schedules of varying quality, and yielding negative consequences for resident morale and learning. OBJECTIVE To determine whether computerize...

The aim of this paper is practical: to show that, for at least one important real-world problem, modern SAT-based technology can beat the extremely mature branch-and-cut solving methods implemented in well-known state-of-the-art commercial solvers such as CPLEX or Gurobi . problem employee scheduling consists assigning a work schedule each employees an organization, way that demands are met, le...