ScienceDirect® Home Skip Main Navigation Links
You have guest access to ScienceDirect. Find out more.
 
Home
Browse
My Settings
Alerts
Help
 Quick Search
 Search tips (Opens new window)
    Clear all fields    
European Journal of Operational Research
Volume 171, Issue 1, 16 May 2006, Pages 74-84
 
Font Size: Decrease Font Size  Increase Font Size
 Abstract - selected
Article
Purchase PDF (399 K)

 
 
 
Related Articles in ScienceDirect
View More Related Articles
 
View Record in Scopus
 
doi:10.1016/j.ejor.2004.07.061    How to Cite or Link Using DOI (Opens New Window)
Copyright © 2004 Elsevier B.V. All rights reserved.

Discrete Optimization

Variable neighborhood search for the vertex weighted k-cardinality tree problem

J. Brimberga, b, D. Uroševićc and N. Mladenovićb, c, Corresponding Author Contact Information, E-mail The Corresponding Author

aDepartment of Business Administration, Royal Military College of Canada, Kingston, Ont., Canada bGERAD, University of Montreal, Montreal, Que., Canada cMathematical Institute, SANU, Knez Mihajlova 35, 11000 Belgrade, Serbia and Montenegro

Received 20 October 2003; 
accepted 28 July 2004. 
Available online 12 October 2004.

Purchase the full-text article



References and further reading may be available for this article. To view references and further reading you must purchase this article.

Abstract

This paper presents some new heuristics based on variable neighborhood search to solve the vertex weighted k-cardinality tree problem. An efficient local search procedure is also developed for use within these heuristics. Our computational results demonstrate that the new heuristics substantially outperform the state-of-the-art methodologies, including a tabu search and genetic algorithm recently proposed in the literature. We also show that a decomposition approach is best for larger problem sizes than previously investigated. Thus, our findings advance in a significant way the capacity to solve this important class of problems.

Keywords: Metaheuristics; Variable neighborhood search; Combinatorial optimization; Vertex weighted k-cardinality tree problem

Article Outline

1. Introduction
2. Variable neighborhood search
2.1. Initialization
2.2. Local search
2.3. Variable neighborhood descent
2.4. Shaking step
3. Decomposition
4. Skewed VNS
5. Computational results
6. Conclusions
References



 
Home
Browse
My Settings
Alerts
Help
Elsevier.com (Opens new window)
About ScienceDirect  |  Contact Us  |  Information for Advertisers  |  Terms & Conditions  |  Privacy Policy
Copyright © 2008 Elsevier B.V. All rights reserved. ScienceDirect® is a registered trademark of Elsevier B.V.