摘要
以优化形式描述的集合覆盖问题是一个NP难问题,设计快速有效的近似算法,具有重要的理论与现实意义.基于贪心算法思想,提出了一种求解带权集合覆盖问题的近似算法,并讨论了该算法的相对近似比.
The set cover problem described with maximal form is an NP complex one. The authors paper proposed an approximative algorithm for weighted set cover problem, and then discussed the approximative ratio of the algorithm.
出处
《温州大学学报(自然科学版)》
2008年第6期46-48,共3页
Journal of Wenzhou University(Natural Science Edition)
关键词
带权集合覆盖
贪心算法
相对近似比
Weighted set cover problem
Greedy algorithm
Relative approximative ratio in this relative