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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
ICEC
1996
123views more  ICEC 1996»
13 years 8 months ago
Solving Symmetric and Asymmetric TSPs by Ant Colonies
- In this paper we present ACS, a distributed algorithm for the solution of combinatorial optimization problems which was inspired by the observation of real colonies of ants. We a...
Luca Maria Gambardella, Marco Dorigo
SODA
2010
ACM
397views Algorithms» more  SODA 2010»
14 years 4 months ago
Improved Approximation Algorithms for the Minimum Latency Problem via Prize-Collecting Strolls
The minimum latency problem (MLP) is a well-studied variant of the traveling salesman problem (TSP). In the MLP, the server's goal is to minimize the average latency that the...
Aaron Archer, Anna Blasiak
ANOR
2008
171views more  ANOR 2008»
13 years 7 months ago
A branch and bound method for the job-shop problem with sequence-dependent setup times
This paper deals with the job-shop scheduling problem with sequencedependent setup times. We propose a new method to solve the makespan minimization problem to optimality. The met...
Christian Artigues, Dominique Feillet
EOR
2000
115views more  EOR 2000»
13 years 7 months ago
An effective implementation of the Lin-Kernighan traveling salesman heuristic
This report describes an implementation of the Lin-Kernighan heuristic, one of the most successful methods for generating optimal or nearoptimal solutions for the symmetric travel...
Keld Helsgaun