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Computer Engineering ›› 2006, Vol. 32 ›› Issue (20): 207-209. doi: 10.3969/j.issn.1000-3428.2006.20.077

• Artificial Intelligence and Recognition Technology • Previous Articles     Next Articles

Optimum Path Algorithm in Traffic Network Based on
Model of Hierarchical Spatial Reasoning

LI Jianyuan1,2, SHI Jun1   

  1. (1. School of Computer Science, Shanxi Normal University, Xi’an 710062;
    2. Department of Mechanical and Electronic Engineering, Shanxi Teachers University, Linfen 041000)
  • Received:1900-01-01 Revised:1900-01-01 Online:2006-10-20 Published:2006-10-20

基于层次空间推理模型的交通网络最优路径算法

李建元1,2,师 军1   

  1. (1. 陕西师范大学计算机科学学院,西安 710062;2. 山西师范大学机械电子工程系,临汾 041000)

Abstract: This paper summarizes the known hierarchical spatial reasoning procedure, for traffic network, adopts the strategy narrowing search region and the strategy of comparison, puts forward a new hierarchical spatial reasoning recursive procedure, improves the reliability of optimum path algorithm, and gives a necessary analysis about the efficiency of the optimum path algorithm.

Key words: Hierarchical spatial reasoning, Traffic network, Optimum path, Plat algorithm, Entrance

摘要: 在交通地理信息系统(GIS-T)和智能交通系统(ITS)中,单源最短路径问题是一个研究热点。该文总结了已有的层次空间推理过程,针对交通网络,运用了限制搜索区域策略和比较策略,提出了新的层次空间推理过程,寻找更为可靠的入口,以便搜索到更可靠的最优路径,保证层内最优路径搜索的高效率,进一步提高了最优路径算法的可靠性,并对算法的效率进行了必要的分析。

关键词: 层次空间推理, 交通网络, 最优路径, 平面算法, 入口