COCOA
2008
Springer
14 years 1 months ago
2008
Springer
We present efficient algorithms to generate all edge-magic and vertex-magic total labelings on cycles, and all vertex-magic total labelings on wheels. Using these algorithms, we ex...
COCOA
2008
Springer
14 years 1 months ago
2008
Springer
Solution symmetries in integer linear programs often yield long Branch-and-Bound based solution processes. We propose a method for finding elements of the permutation group of sol...
COCOA
2008
Springer
14 years 2 months ago
2008
Springer
A genomic map is represented by a sequence of gene markers, and a gene marker can appear in several different genomic maps, in either positive or negative form. A strip (syntenic b...
COCOA
2008
Springer
14 years 2 months ago
2008
Springer
Abstract. We consider a survivable network design problem known as the 2-NodeConnected Steiner Network Problem (2NCON): we are given a weighted undirected graph with a node partiti...
COCOA
2008
Springer
14 years 2 months ago
2008
Springer
The multiple weighted hitting set problem is to find a subset of nodes in a hypergraph that hits every hyperedge in at least m nodes. We extend the problem to a notion of hypergra...
COCOA
2008
Springer
14 years 2 months ago
2008
Springer
We introduce a new combinatorial optimization problem, which is a generalization of the Traveling Salesman Problem (TSP) and which we call Traveling Salesman Problem of Second Orde...
COCOA
2008
Springer
14 years 2 months ago
2008
Springer
The goal of the Cluster Editing problem is to make the fewest changes to the edge set of an input graph such that the resulting graph is a disjoint union of cliques. This problem i...
COCOA
2008
Springer
14 years 2 months ago
2008
Springer
COCOA
2008
Springer
14 years 2 months ago
2008
Springer
Abstract: Recently, there have been significant theoretical progresses towards fixed-parameter algorithms for the DOMINATING SET problem of planar graphs. It is known that the prob...
COCOA
2008
Springer
14 years 2 months ago
2008
Springer
This paper deals with approximation algorithms for the prize collecting generalized Steiner forest problem, defined as follows. The input is an undirected graph G = (V, E), a colle...