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» Labeled Traveling Salesman Problems: Complexity and approxim...
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ESA
2007
Springer
97views Algorithms» more  ESA 2007»
14 years 1 months ago
To Fill or Not to Fill: The Gas Station Problem
In this paper we study several routing problems that generalize shortest paths and the Traveling Salesman Problem. We consider a more general model that incorporates the actual co...
Samir Khuller, Azarakhsh Malekian, Julián M...
TAMC
2009
Springer
14 years 1 days ago
On the Complexity of the Multiple Stack TSP, kSTSP
Given a universal constant k, the multiple Stack Travelling Salesman Problem (kSTSP in short) consists in finding a pickup tour T1 and a delivery tour T2 of n items on two distinc...
Sophie Toulouse, Roberto Wolfler Calvo
FLAIRS
2010
13 years 5 months ago
Decision-Theoretic Simulated Annealing
The choice of a good annealing schedule is necessary for good performance of simulated annealing for combinatorial optimization problems. In this paper, we pose the simulated anne...
Todd W. Neller, Christopher J. La Pilla
RECOMB
2005
Springer
14 years 7 months ago
Lower Bounds for Maximum Parsimony with Gene Order Data
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...
Abraham Bachrach, Kevin Chen, Chris Harrelson, Rad...
MP
2006
119views more  MP 2006»
13 years 7 months ago
Approximate extended formulations
Mixed integer programming (MIP) formulations are typically tightened through the use of a separation algorithm and the addition of violated cuts. Using extended formulations involv...
Mathieu Van Vyve, Laurence A. Wolsey