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EVOW
2006
Springer
15 years 8 months ago
Fast EAX Algorithm Considering Population Diversity for Traveling Salesman Problems
This paper proposes an evolutionary algorithm (EA) that is applied to the traveling salesman problem (TSP). Existing approximation methods to address the TSP known to be state-of-t...
Yuichi Nagata
IWPEC
2009
Springer
15 years 11 months ago
An Exponential Time 2-Approximation Algorithm for Bandwidth
The bandwidth of a graph G on n vertices is the minimum b such that the vertices of G can be labeled from 1 to n such that the labels of every pair of adjacent vertices differ by ...
Martin Fürer, Serge Gaspers, Shiva Prasad Kas...
CEC
2008
IEEE
15 years 11 months ago
Analysis of population-based evolutionary algorithms for the vertex cover problem
— Recently it has been proved that the (1+1)-EA produces poor worst-case approximations for the vertex cover problem. In this paper the result is extended to the (1+λ)-EA by pro...
Pietro Simone Oliveto, Jun He, Xin Yao
FOCS
2003
IEEE
15 years 9 months ago
Approximation Algorithms for Asymmetric TSP by Decomposing Directed Regular Multigraphs
A directed multigraph is said to be d-regular if the indegree and outdegree of every vertex is exactly d. By Hall’s theorem one can represent such a multigraph as a combination ...
Haim Kaplan, Moshe Lewenstein, Nira Shafrir, Maxim...
TPDS
2008
68views more  TPDS 2008»
15 years 4 months ago
Continuous Delivery Message Dissemination Problems under the Multicasting Communication Mode
We consider the Continuous Delivery Message Dissemination (CDMD) problem over the n-processor single-port complete (all links are present and are bidirectional) static network with...
Teofilo F. Gonzalez