CIESC Journal

• RESEARCH PAPERS • 上一篇    下一篇

基于增广森林结构的一般网络最小费用问题瓶颈分析

江永亨; 王军; 金以慧   

  1. Department of Automation, Tsinghua University, Beijing 100084, China
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2003-02-28 发布日期:2003-02-28
  • 通讯作者: 江永亨

Bottleneck Analysis of the Minimum Cost Problem for the Generalized Network Based on
Augmented Forest Structure

JIANG Yongheng; WANG Jun; JIN Yihui   

  1. Department of Automation, Tsinghua University, Beijing 100084, China
  • Received:1900-01-01 Revised:1900-01-01 Online:2003-02-28 Published:2003-02-28
  • Contact: JIANG Yongheng

摘要: The bottleneck analysis of the minimum cost problem for the generalized network (MCPGN) is
dis-cussed. The analysis is based on the network simplex algorithm, which gains negative
cost graphs by constructingaugmented forest structure, then augments flows on the negative
cost graphs until the optimal revolution is gained.Bottleneck structure is presented after
analyzing the augmented forest structure. The negative cost augmentedgraphs are constructed
with the bottleneck structure. The arcs that block the negative cost augmented graph arethe
elements of the bottleneck. The bottleneck analysis for the generalized circulation
problem, the minimum circu-lation problem and the circulation problem are discussed
respectively as the basal problems, then that for MCPGNis achieved. An example is presented
at the end.

关键词: bottleneck;augmented forest;minimum cost problem

Abstract: The bottleneck analysis of the minimum cost problem for the generalized network (MCPGN) is
dis-cussed. The analysis is based on the network simplex algorithm, which gains negative
cost graphs by constructingaugmented forest structure, then augments flows on the negative
cost graphs until the optimal revolution is gained.Bottleneck structure is presented after
analyzing the augmented forest structure. The negative cost augmentedgraphs are constructed
with the bottleneck structure. The arcs that block the negative cost augmented graph arethe
elements of the bottleneck. The bottleneck analysis for the generalized circulation
problem, the minimum circu-lation problem and the circulation problem are discussed
respectively as the basal problems, then that for MCPGNis achieved. An example is presented
at the end.

Key words: bottleneck, augmented forest, minimum cost problem