Vol. 12, No. 4 (November 1999) 233-246   

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R. Tavakkoli-Moghaddam
Department of Industrial Engineering, Faculty of Engineering
Tehran University, P. O. Box 11365-4563, Tehran, Iran
( Received: July 13, 1998 – Accepted in Revised Form: June 03, 1999 )

Abstract     This paper present unequal-sized facilities layout solutions generated by a genetic search program named LADEGA (Layout Design using a Genetic Algorithm). The generalized quadratic assignment problem requiring pre-determined distance and material flow matrices as the input data and the continuous plane model employing a dynamic distance measure and a material flow matrix are discussed. Computational results on test problems are reported as compared with those of layout solutions generated by the branch and bound algorithm, a hybrid method merging simulated annealing and local search techniques and an optimization process of an enveloped block.


Keywords    Facilities Layout Problems, Mathematical Models, Heuristics, Genetics Algorithms



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