IJCSN International Journal of Computer Science and Network ISSN, vol. 3, issue 6 (2014) pp. 2277-5420
-The concept of ranking method is an efficient approach to rank fuzzy numbers. The aim of the paper is to find the pareto optimal solution of fuzzy multiobjective linear fractional programming (FMOLFP) problem. To study FMOLFP problem, the fuzzy coefficients and scalars in the linear fractional objectives and the fuzzy coefficients are characterised by triangular or trapezoidal fuzzy numbers. The left hand side of the fuzzy constraints are characterised by triangular or trapezoidal fuzzy numbers, while the right hand sides are assumed to be crisp number. The fuzzy coefficients and scalars in the linear fractional objectives and fuzzy coefficients in the linear constraints are transformed to crisp MOLFP problem using ranking method. The reduced problem is solved by simplex method to find the pareto optimal solution of MOLFP problem. To demonstrate the proposed approach, one numerical example is solved.
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