期刊文献+

若干情形分组和覆盖Steiner问题的算法

Algorithms for some cases of group and covering Steiner problems
下载PDF
导出
摘要 综合论述了理论计算机科学领域中两个密切相关的NP-困难问题:分组Steiner问题和覆盖Steiner问题的不同解决途径,并就其若干特殊情形设计了近似比更好的近似算法。 We review different avenues to solve two closely-related NP-hard problems in theoretical computer science,the group Steiner problem and the covering Steiner problem,and design improved approximation algorithm for some special cases of them.
作者 王继强
出处 《计算机工程与应用》 CSCD 北大核心 2007年第18期30-31,共2页 Computer Engineering and Applications
基金 国家自然科学基金(the National Natural Science Foundation of China under Grant No.60373025) 。
关键词 分组Steiner问题 覆盖Steiner问题 近似算法 group Steiner problem covering Steiner problem approximation algorithm
  • 相关文献

参考文献8

  • 1Ihler E.The complexity of approximating the class Steiner tree problem[C]//LNCS 570:Graph-Theoretic Concepts in Computer Science WG91,Springer,1992:85-96.
  • 2Konjevod G,Ravi R,Srinivasan A.Approximation algorithms for the covering Steiner problem[J].Random Structures and Algorithms(Special Issue on Probabilistic Methods in Combinatorial Optimization),2002,20 (3):465 -482.
  • 3Garg N,Konjevod G,Ravi R.A polylogarithmic approximation algorithm for the group Steiner problem[J].Journal of Algorithms,2000,37 (1):66-84.
  • 4Garg N.Saving an epsilon:a 2-approximation algorithm for the k-mst problem in graphs[C]//Proceedings of the 37th Annual ACM Symposium on Theory of Computing,2005:396-402.
  • 5Robins G,Zelikovsky A.Improved Steiner tree approximation in graphs[C]//Proceedings of the 11th Annual ACM-SIAM Symposium on Discrete Algorithms,2000:770-779.
  • 6Bartal Y.On approximating arbitrary metrics by tree metrics[C]//Proceedings of the 30th Annual ACM Symposium on Theory of Computing,1998:161-168.
  • 7Bartal Y.Probabilistic approximation of metric spaces and its algorithmic applications[C]//Proceedins of the 37th Annual IEEE Symposium on Foundations of Computer Science,1996:184-193.
  • 8Fakcharoenphol J,Rao S,Talwar B.A tight bound on approximating arbitrary metrics by tree metrics[C]//Proceedings of the 35th Annual ACM Symposium on Theory of Computing,2003:448-455.

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部