We present an algorithm which finds a minimum vertex cover in a graph G(V, E) in time O(|V|+(ak)2k3), where for connected graphs G the parameter a is defined as the minimum number of edges that must be added to a tree to produce G, and k is the maximum a over all biconnect...
VERTEX COVER AND SET COVER
VERTEX-COVER是NP完全的: 相关知识点: 试题来源: 解析 证明: 这里给出一个从3SAT到VERTEX-COVER 的在多项式时间内运算的规约的细节内容,该规约把布尔公式¢映射为一个图G和值k。对于¢中的每个变量x,产生一条连接着两个结点的边。把这个构件中的两个结点标记为。把x赋值为TRUE对应于顶点覆盖选择该边的左...
The runtime of the immune inspired B-Cell Algorithm (BCA) for the NP-hard vertex cover problem is analysed. It is the first theoretical analysis of a nature-inspired heuristic as used in practical applications for a realistic problem. Since the performance of BCA in combinatorial optimisation ...
The problem of finding a minimum vertex cover is an NP hard optimization problem. Some approximation algorithms for the problem have been proposed but most... H Bhasin - 《International Journal of Computational Science & Engineering》 被引量: 22发表: 2012年 Maximum Quadratic Assignment Problem: Re...
Facebook Twitter Google Share on Facebook minimum vertex cover [‚min·ə·məm ′vər‚teks ‚kəv·ər] (mathematics) A vertex cover in a graph such that there is no other vertex cover with fewer vertices. McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyri...
Our results Both p-Edge-Connected Vertex Cover and p-Connected Vertex Cover are NP-complete; proofs for this follow from the reductions provided in Theorem 7, Theorem 8, respectively. It is also not hard to obtain simple FPT algorithms for both p-Edge-Connected Vertex Cover and p-Connect...
On the max min vertex cover problemMax min vertex coverMin independent dominating setPolynomial approximationInapproximabilityParametric complexityWe address themax min vertex coverproblem, which is the maximization version of the well studiedmin independent dominating setproblem, known to beNP-hard and ...
The problem of finding a minimum vertex cover is a classical optimization problem in computer science and is a typical example of an NP-hard optimization problem that has an approximation algorithm. Its decision version, the vertex cover problem was one of Karp's 21 NP-complete problems and is...
两种方法求Weighted Vertex Cover近似解