EXGT-S: A knowledge based system for group technology

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Abstract
In this paper a knowledge based system (EXGT-S) for solving the generalized group technology problem is presented. The formulation of the group technology problem involves constraints related to machine capacity, material handling system capabilities, machine cell dimensions and technological requirements. Il has been developed for an automated manufacturing system. EXGT-S is based on the tandem system architecture presented in Kusiak (1987). It considers alternative process plans and multiple machines. EXGT-S takes advantage of the developments in expert systems and optimization. Two basic components of the knowledge based system, namely the expert system and heuristic clustering algorithm are discussed. Each partial solution generated by the clustering algorithm is evaluated by the expert system which modifies search directions of the algorithm.

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