15 search results - page 3 / 3 » A Simple LP Relaxation for the Asymmetric Traveling Salesman... |
RECOMB
2005
Springer
14 years 8 months ago
2005
Springer
Abstract. In this paper, we study lower bound techniques for branchand-bound algorithms for maximum parsimony, with a focus on gene order data. We give a simple O(n3 ) time dynamic...
FOCS
2006
IEEE
14 years 1 months ago
2006
IEEE
We consider the minimum cost spanning tree problem under the restriction that all degrees must be at most a given value k. We show that we can efficiently find a spanning tree o...
ALGORITHMICA
2005
13 years 7 months ago
2005
A cycle cover of a graph is a spanning subgraph each node of which is part of exactly one simple cycle. A k-cycle cover is a cycle cover where each cycle has length at least k. Gi...
AI
2006
Springer
13 years 7 months ago
2006
Springer
Branch-and-bound and branch-and-cut use search trees to identify optimal solutions to combinatorial optimization problems. In this paper, we introduce an iterative search strategy...
HM
2005
Springer
14 years 1 months ago
2005
Springer
Abstract. This paper introduces a new algorithm, based on the concept of ejection chains, to effectively target vehicle routing problems with time window constraints (VRPTW). Ejec...