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IBM Journal of Research and Development  
Volume 29, Number 4, Page 392 (1985)
Computers in Manufacturing
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Short-term production scheduling of an automated manufacturing facility

by S. B. Gershwin, R. Akella, Y. F. Choong
We describe a new implementation of the Kimemia-Gershwin hierarchical policy for the real-time scheduling of flexible manufacturing systems. Major improvements result at all three levels of the policy. The algorithm simplification, resulting in substantial reductions of off-line and on-line computation time, is reported, as is the improvement in performance through the elimination of chattering. Simulation results based on a detailed model of a printed circuit card assembly facility are summarized.
Related Subjects: Algorithms; Manufacturing