K. R. Rao, Rajnesh K. Mudaliar, M. Hasan, M. K. Alam
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引用次数: 4
摘要
基本交通问题最初是由Frank Lauren Hitchcock提出的[11],[16]。运输问题,将货物从m个来源运送到n个不同的目的地,以使总转移成本最小。模糊运输问题是运输成本、供给量和需求量为模糊量的运输问题。在模糊运输问题中,所有参数都是模糊数。模糊运输的目的是当节点的供给和需求以及边缘的容量和成本以模糊数表示时,通过一个有能力的网络找到某些商品的最小运输成本。模糊数可以是正态或次正态,三角形或梯形或任何模糊罗素模糊数。有些模糊数字不能直接比较。在实际情况中,运输单位成本并不是事先精确确定的,而是用模糊参数来表示的。本文提出了一种简单有效的方法,它优于现有的方法,易于理解,并能给出最优解。本文提出的方法是改进的零点法(Zero Point method, IZPM)[10],该方法仅假设决策者对运输成本的精确值不确定,用于求解不平衡模糊运输问题。在本文中,我想提出,如何将一个模糊运输问题完美地表述为达到最优解。
A Perfect Mathematical Formulation of Fuzzy Transportation Problem Provides an Optimal Solution Speedily
The basic transportation problem was originally developed by Frank Lauren Hitchcock [11], [16]. The transportation problem which transports goods from m sources to n different destinations to minimize total shifting cost. A fuzzy transportation problem is a transportation problem in which the transportation costs, supply and demand quantities are fuzzy quantities. In a fuzzy transportation problem, all parameters are fuzzy number. The aim of Fuzzy transportation is to find the least transportation cost of some commodities through a capacitated network when the supply and demand of nodes and capacity and cost of edges are represented as fuzzy numbers. Fuzzy numbers may be normal or subnormal, Triangular or Trapezoidal or any Fuzzy Russell fuzzy number. Some fuzzy numbers are not directly comparable. In real life case, transportation unit costs have not been precisely determined beforehand, but they are specified by the fuzzy parameters. This paper presents a simple and efficient method that is better than the existing methods, easy to understand and also can give an optimal solution. The proposed method, improved Zero Point Method (IZPM) [10], 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 this paper I would like to present, how a fuzzy transportation problem can formulate perfectly forreaching to the optimal solution.