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最大化非减次模集函数问题的近似算法及其性能保证 被引量:1

An approximation algorithm for maximizing a non-decreasing submodular set function and its performance guarantee
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摘要 次模集函数的最值问题在组合优化问题中有广泛应用,次模集函数的增减性对该问题的分析具有一定的简化作用.给出了求解非减次模集函数最大值问题的一种近似算法,并讨论了所给算法的性能保证. Maximizing or minimizing a submodular set function has a wide use in combinatorial optimization problem, and non-increasing or non-decreasing of these set function are very helpful in analyzing these problems. In this paper, we present an approximation algorithm for maximizing a non-increasing submodular set function, and discuss its performance guarantee.
出处 《西南民族大学学报(自然科学版)》 CAS 2009年第1期35-40,共6页 Journal of Southwest Minzu University(Natural Science Edition)
基金 北方民族大学科研资助项目(NO.2007Y044)
关键词 组合优化问题 次模集函数 近似算法 性能保证 combinatorial optimization problem submodular set function approximation algorithm performance guarantee
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参考文献4

  • 1FUJISHIGE S. Submodular Functions and Optimization[M]. North-Holland Press, 1991.
  • 2ILEV V E An approximation guarantee of the greedy descent algorithm for minimizing a supermodular set function[J]. Discrete Applied Mathematics, 2001 (114): 131 - 146.
  • 3ILEV V P, LINKER N. Performance guarantee of a greedy algorithm for minimizing a supermodular set function on comatroid[J]. European Journal of Operational Research, 2006(171): 648-660.
  • 4郝自军,高岳林,何尚录.求解非增次模集函数最大值问题的近似算法及其性能保证[J].数学的实践与认识,2008,38(12):145-151. 被引量:4

二级参考文献3

  • 1Fujishige S. Submodular Functions and Optimization[M]. North-Holland Press,1991.
  • 2ILev V P. An approximation guarantee of the greedy descent algorithm for minimizing a supermodular set function[J]. Discrete Applied Mathematics, 2001,114:131-146.
  • 3ILev V P, Linker N. Performance guarantee of a greedy algorithm for minimizing a supermodular set function on comatroid[J]. European Journal of Operational Research, 2006,171: 648-660.

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