A note on A mixed integer programming formulation for multi floor layout [African Journal of Business Management 3 (2009) 616-620] | Zendy

k Krishnan Krishna | Zendy; Ardestani Jaafari Amir | Zendy

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A note on A mixed integer programming formulation for multi floor layout [African Journal of Business Management 3 (2009) 616-620]

Author(s) -

k Krishnan Krishna,

Ardestani Jaafari Amir

Publication year - 2011

Publication title -

african journal of business management

Language(s) - English

Resource type - Journals

ISSN - 1993-8233

DOI - 10.5897/ajbm10.254

Subject(s) - integer programming , solver , memetic algorithm , mathematical optimization , closeness , computer science , key (lock) , integer (computer science) , linear programming , position (finance) , genetic algorithm , mathematics , economics , mathematical analysis , computer security , finance , programming language

In the aforesaid paper, some pages are omitted reluctantly and are corrected thus. In this paper, the two-floor facility layout problem with unequal departmental areas in multi-bay environments is addressed. A mixed integer programming formulation is developed to find the optimal solution to the problem. This model determines position and number of elevators with consideration of conflicting objectives simultaneously. Objectives include to minimize material handling cost and to maximize closeness rating. A memetic algorithm (MA) is designed to solve the problem and it is compared with the corresponding genetic algorithm for large-sized test instances and with a commercial linear programming solver solution to small-sized test instances. Computational results proved the efficiency of solution procedure to the problem. Key words: Mixed integer programming, multi floor layout, multi objective, memetic algorithm.

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