Solving the four index fully fuzzy transportation problem

• Main Authors: Manal Hedid, Rachid Zitouni
• Format: Article
• Language: English
• Published: Croatian Operational Research Society 2020-01-01
• Series: Croatian Operational Research Review
• Subjects: fuzzy arithmetic; fuzzy transportation problem; linear programming; multi-index problem
• Online Access: https://hrcak.srce.hr/file/361235

In this paper, we will solve the four index fully fuzzy transportation problem (\textit{FFTP$_{4}$}) with some adapted classical methods. All problem's data will be presented as fuzzy numbers. In order to defuzificate these data, we will use the ranking function procedure. Our method to solve the \textit{FFTP$_{4}$} composed of two phases; in the first one, we will use an adaptation of well-known algorithms to find an initial feasible solution, which are the least cost, Russell's approximation and Vogel's approximation methods. In the second phase, we will test the optimality of the initial solution, if it is not optimal, we will improve it. A numerical analysis of the proposed methods is performed by solving different examples of different sizes; it is determined that they are stable, robust, and efficient. A proper comparative study between the adapted methods identifies the suitable method for solving \textit{FFTP$_{4}$}.