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基于"矩阵乘法"的网络最短路径算法
引用本文:邓方安,雍龙泉,周涛,刘丽华.基于"矩阵乘法"的网络最短路径算法[J].电子学报,2009,37(7):1594-1598.
作者姓名:邓方安  雍龙泉  周涛  刘丽华
作者单位:陕西理工学院数学系,陕西汉中,723001
基金项目:国家自然科学基金(No.60875034)
摘    要: 网络最短路径问题可以作为许多实际应用问题的模型,但传统的求解算法其迭代过程复杂.本文描述了基于矩阵乘法的最短路算法,其时间复杂度与Dijkstra算法相同.在给定的一个网络图中,在不改变网络图中的最短路的条件下,删除"多余"的结点或边,可以达到简化网络图和提高求解速度的目的,从而降低计算复杂性.最后,研究了该方法在最短路径问题和旅行商问题中的应用.实例表明,这种算法与传统的动态规划技术相比,具有运算简便、易于理解的优点.

关 键 词:矩阵乘法  最短路问题  约简原则  旅行商问题
收稿时间:2008-03-28

Shortest Path Problem Algorithm in Network Based on Matrix Multiplication
DENG Fang-an,YONG Long-quan,ZHOU Tao,LIU Li-hua.Shortest Path Problem Algorithm in Network Based on Matrix Multiplication[J].Acta Electronica Sinica,2009,37(7):1594-1598.
Authors:DENG Fang-an  YONG Long-quan  ZHOU Tao  LIU Li-hua
Affiliation:Department of Mathematics;Shaanxi University of Technology;Hanzhong;Shaanxi 723001;China
Abstract:Shortest Path Problem in network can be acted as a model for many application problems,but the iteration process of the conventional solution algeorithm is complex.In this paper,the shortest path algorithm based on the matrix multiplication in a weighted-graph are described,and its time complexity is as same as Dijkstra algorithm.In a given network graph,this algorithm delete spare nodes or edges and reach the goal that reduced network graph and improved speed of solving problem under the condition of uncha...
Keywords:matrix multiplication  shortest path problem  reduced principle  traveling salesman problems  
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