|
Trudy Instituta Matematiki i Mekhaniki UrO RAN, 2013, Volume 19, Number 2, Pages 134–143
(Mi timm939)
|
|
|
|
This article is cited in 5 scientific papers (total in 6 papers)
$2$-approximate algorithm for finding a clique with minimum weight of vertices and edges
I. I. Eremina, E. Kh. Gimadib, A. V. Kel'manovb, A. V. Pyatkinb, M. Yu. Khachaiac a Institute of Mathematics and Mechanics, Ural Branch of the Russian Academy of Sciences
b Sobolev Institute of Mathematics, Siberian Branch of the Russian Academy of Sciences
c Ural Federal University
Abstract:
The problem on a minimal clique (with respect to the total weight of its vertices and edges) of fixed size in a complete undirected weighted graph is considered along with some of its important special cases. Approximability questions are analyzed. The weak approximability of the problem is established for the general case. A $2$-approximate effective algorithm with time complexity $O(n^2)$ is proposed for cases where vertex weights are nonnegative and edge weights either satisfy the triangle inequality or are squared pairwise distances for some system of points of a Euclidean space.
Keywords:
complete undirected graph, clique of fixed size, minimum weight of vertices and edges, subset search, approximability, polynomial approximation algorithm, performance guarantee, time complexity.
Received: 10.02.2013
Citation:
I. I. Eremin, E. Kh. Gimadi, A. V. Kel'manov, A. V. Pyatkin, M. Yu. Khachai, “$2$-approximate algorithm for finding a clique with minimum weight of vertices and edges”, Trudy Inst. Mat. i Mekh. UrO RAN, 19, no. 2, 2013, 134–143; Proc. Steklov Inst. Math. (Suppl.), 284, suppl. 1 (2014), 87–95
Linking options:
https://www.mathnet.ru/eng/timm939 https://www.mathnet.ru/eng/timm/v19/i2/p134
|
Statistics & downloads: |
Abstract page: | 449 | Full-text PDF : | 104 | References: | 59 | First page: | 4 |
|