Abstract
Modifications to Vogel's Approximation Method for obtaining ini- tial solutions to the unbalanced transportation problem are described by many workers. This paper presents a simple and efficient method that is better than the existing methods, easy to understand and also can give an optimal solu- tion. The proposed method, Improved Zero Point Method (IZPM) (see (13)), is used for solving unbalanced fuzzy transportation problems by assuming that a decision maker is uncertain about the precise values of the transportation cost only. In the proposed method transportation costs are represented by trian- gular fuzzy numbers. The algorithm of the approach is detailed with suitable numerical examples. Further comparative studies of the new technique with other existing algorithms are established by means of sample problems. AMS Subject Classification: 90C08, 90C90, 90C70, 90B06, 90C29
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