Variable Neighborhood Search for solving Bandwidth Coloring Problem

Computer Science and Information Systems

Dragan Matić¹  Vladimir Filipović²  Jozef Kratica³ 

[1] Faculty of Mathematics and Natural Sciences, Mladena Stojanovića 2;Faculty of Mathematics, Studentski trg 16;Mathematical Institute of the Serbian Academy of Sciences and Arts

关键词: Bandwidth Coloring;    Bandwidth MultiColoring;    Frequency Assignment;    Variable Neighborhood Search;    Variable Neighborhood Descent;   

DOI  :  10.2298/CSIS160320012M

学科分类：社会科学、人文和艺术（综合）

来源: Computer Science and Information Systems

【 摘 要 】

This paper presents a variable neighborhood search (VNS) algorithm for solving bandwidth coloring problem (BCP) and bandwidth multicoloring problem (BMCP). BCP and BMCP are generalizations of the well known vertex coloring problem and they are of a great interest from both theoretical and practical points of view. Presented VNS combines a shaking procedure which perturbs the colors for an increasing number of vertices and a specific variable neighborhood descent (VND) procedure, based on the specially designed arrangement of the vertices which are the subject of re-coloring. By this approach, local search is split in a series of disjoint procedures, enabling better choice of the vertices which are addressed to recolor. The experiments performed on the geometric graphs from the literature show that proposed method is highly competitive with the state-of-the-art algorithms and improves 2 out of 33 previous best known solutions for BMCP.

【 授权许可】

CC BY-NC-ND