Now showing items 1-10 of 16
Scheduling in a three-machine flexible robotic cell
In this study, a three-machine flexible robotic manufacturing cell in which the CNC machines are used is considered. These machines are highly flexible and are capable of performing several different operations. Each machine ...
A simulation based learning meachanism for scheduling systems with continuous control and update structure
A simulation based learning mechanism is proposed in this study. The system learns in the manufacturing environment by constructing a learning tree and selects a dispatching rule from the tree for each scheduling period. ...
Optimal hybrid control of a two-stage manufacturing system
We consider a two-stage serial hybrid system for which the arrival times are known and the service times are controllable. We derive some optimal sample path characteristics, in particular, we show that no buffering is ...
Parameter selection in genetic algorithms
(International Institute of Informatics and Cybernetics, 2004)
In this study, we provide a new taxonomy of parameters of genetic algorithms (GA), structural and numerical parameters, and analyze the effect of numerical parameters on the performance of GA based simulation ...
A beam search algorithm to optimize robustness under random machine breakdowns and processing time variability
(Institute of Industrial Engineers, 2007)
The vast majority of the machine scheduling research assumes complete information about the scheduling problem and a static environment in which scheduling systems operate. In practice, however, scheduling systems are ...
Multihoist cyclic scheduling with fixed processing and transfer times
(Institute of Electrical and Electronics Engineers, 2007-07)
In this paper, we study the no-wait multihoist cyclic scheduling problem, in which the processing times in the tanks and the transfer times between tanks are constant parameters, and develop a polynomial optimal solution ...
Overdetermined systems of linear equations
Pure cycles in flexible robotic cells
In this study, an m-machine flexible robotic manufacturing cell consisting of CNC machines is considered. The flexibility of the machines leads to a new class of robot move cycles called the pure cycles. We first model the ...
Simulation optimization: a comprehensive review on theory and applications
(Taylor & Francis, 2004)
For several decades, simulation has been used as a descriptive tool by the operations research community in the modeling and analysis of a wide variety of complex real systems. With recent developments in simulation ...
A derivation of Lovász' theta via augmented lagrange duality
(E D P Sciences, 2003)
A recently introduced dualization technique for binary linear programs with equality constraints, essentially due to Poljak et al. , and further developed in Lemar´echal and Oustry , leads to simple alternative ...