A note on the minimum label spanning tree
Article Ecrit par: Xu, Yinlong ; Chen, Guoliang ; Wan, Yingyu ;
Résumé: We give a tight analysis of the greedy algorithm introduced by Krumke and Wirth for the minimum label spanning tree problem. The algorithm is shown to be a (ln(n-1)+1)-approximation for any graph with n nodes (n>1), which improves the known performance guarantee 2lnn+1.
Langue:
Anglais
Index décimal
621 .Physique appliquée (électrotechnique, génie civil, génie mécanique, ingénierie appliquée, principes physiques en ingénierie)
Thème
Informatique
Mots clés:
Approximation algorithms
NP-hard
Network design
Spanning tree