这个问题有一个npo(np optimization problem)的变种,即:找到满足条件的最小顶点集,也就是使得满足条件下最小|V'|值。 首先可以看出,这是两类完全不同的问题,set cover属于集合一类问题,应用于计算机科学以及计算理论方面。vertex cover,属于图论一类问题,应用于计算机科学、计算理论、图论、数学等等方面。
这个问题有一个npo(np optimization problem)的变种,即:找到满足条件的最小顶点集,也就是使得满足条件下最小|V'|值。 首先可以看出,这是两类完全不同的问题,set cover属于集合一类问题,应用于计算机科学以及计算理论方面。vertex cover,属于图论一类问题,应用于计算机科学、计算理论、图论、数学等等方面。 如果这篇...
1.1.1 VERTEX-COVER ≤ P SET-COVER Pf. Given a VERTEX-COVER instance G = (V, E) and k, we construct a SET-COVER instance (U, S, k) that has a set cover of size k iff G has a vertex cover of size k. 给你一个顶点覆盖我们一定可以构造出一个集合覆盖实列,集合覆盖的解K就是顶...
1.1.1 VERTEX-COVER ≤ P SET-COVER Pf. Given a VERTEX-COVER instance G = (V, E) and k, we construct a SET-COVER instance (U, S, k) that has a set cover of size k iff G has a vertex cover of size k. 给你一个顶点覆盖我们一定可以构造出一个集合覆盖实列,集合覆盖的解K就是顶...
这两个东西其实是互斥的关系,而这两个东西的应用也是十分有趣的。 Vertex Cover 先来说说什么是 Vertex Cover,其实就是节点的集合,这些节点将最大地包含图...
The most vital nodes with respect to independent set and vertex cover. Discrete Applied Mathematics, 159(17) :1933- 1946, 2011.C. Bazgan, S. Toubaline, and Z. Tuza. The most vital nodes with respect to independent set and vertex cover. Discrete Applied Mathematics, 159(17):1933 - ...
M R;Johnson D S Computers and Intractability:A Guide to the Theory of NP-Completeness 1979 D S Approximation algorithms for the set covering and vertex cover problems[外文期刊] 1982(03) P Approximation algor Set-Cover和Hitting-Set问题的研究进展 来自淘豆网www.taodocs.com转载请标明出处. ...
We also present an O^*(1.1923^k) O^*(1.1923^k) -time algorithm to decide if a graph with degree bounded by 3 has a vertex cover of size k k , which improves the previously known algorithm of running time O^*(1.1939^k) O^*(1.1939^k) by Chen, Kanj and Xia [ISAAC 2003]. Two...
Solution:SET-COVER can be seen as a generalization of VERTEX COVER.For a given graph G ,consider each vertex as a set of the edges incident upon it.Formally,we define the sets S u ={(u,v )∈E |v ∈V }for all u ∈V .Also,we take U =E and let k be the same as in ...
V. R. Experimental analysis of approximation algorithms for the vertex cover and set covering problems. Eur. J. Oper. Res. 33, 3520–3534 (2006). MATH Google Scholar Ying, K. C., Lin, S. W. & Huang, C. Y. Sequencing single-machine tardiness problems with sequence dependent setup ...